BECKMAN INSTRUMENTS INC
S-3, 1996-04-05
LABORATORY ANALYTICAL INSTRUMENTS
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<PAGE>   1

     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 5, 1996
                                                  REGISTRATION NO. 333-_________

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                              --------------------

                                    FORM S-3
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933

                              --------------------

                           BECKMAN INSTRUMENTS, INC.
             (Exact name of registrant as specified in its charter)
<TABLE>
<S>                                                            <C>
            DELAWARE                                               95-1040600
  (State or other jurisdiction                                  (I.R.S. Employer
of incorporation or organization)                              Identification No.)
</TABLE>

                             2500 HARBOR BOULEVARD
                          FULLERTON, CALIFORNIA  92634
                                 (714) 871-4848
              (Address, including zip code, and telephone number,
       including area code, of Registrant's principal executive offices)

                              --------------------

                                 WILLIAM H. MAY
                 VICE PRESIDENT, GENERAL COUNSEL AND SECRETARY

                           BECKMAN INSTRUMENTS, INC.
                             2500 HARBOR BOULEVARD
                          FULLERTON, CALIFORNIA  92634
                                 (714) 871-4848
           (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)

                              --------------------

                                   COPIES TO:

         BRIAN G. CARTWRIGHT                        FRANK H. GOLAY, JR.
          LATHAM & WATKINS                          SULLIVAN & CROMWELL
  633 WEST FIFTH STREET, SUITE 4000         444 SOUTH FLOWER STREET, 12TH FLOOR
 LOS ANGELES, CALIFORNIA 90071-2007            LOS ANGELES, CALIFORNIA 90071
           (213) 485-1234                               (213) 955-8000

                              --------------------

    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:  From time
to time after the effective date of this Registration Statement as determined
by market conditions.

                              --------------------

    If the only securities being registered on this Form are being offered
pursuant to a dividend or interest reinvestment plans, please check the
following box. / /

    If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, as amended (the "Securities Act"), other than securities offered only in
connection with dividend or interest investment plans, check the following 
box. /X/

    If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. / /

    If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. / /

    If delivery of the prospectus is expected to be made pursuant to Rule 434
under the Securities Act, please check the following box. / /

                        CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
         Title of each class of            Amount to be      Proposed maximum       Proposed maximum aggregate      Amount of
     securities to be registered(1)         registered    offering price per unit        offering price(2)      registration fee
 <S>                                       <C>                    <C>                        <C>                   <C>
 Debt Securities . . . . . . . . . . .     $200,000,000           (2)                        $200,000,000          $68,966(3)
</TABLE>

    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OR UNTIL THIS REGISTRATION STATEMENT SHALL BECOME EFFECTIVE
ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION, ACTING PURSUANT TO SAID
SECTION 8(A), MAY DETERMINE.

(1) This Registration Statement also covers delayed delivery contracts which
    may be issued by the Registrant under which the counterparty may
    be required to purchase Debt Securities.  Such contracts would be issued
    with Debt Securities.

(2) In no event will the aggregate maximum offering price of all securities
    issued pursuant to this Registration Statement exceed $200,000,000.

(3) Calculated pursuant to Rule 457(o) of the rules and regulations under the
    Securities Act.





<PAGE>   2
          PROSPECTUS (SUBJECT TO COMPLETION, DATED ___________, 1996)


                                  $200,000,000
                           BECKMAN INSTRUMENTS, INC.
                                DEBT SECURITIES

                               _________________


         The Company may from time to time offer Debt Securities consisting of
debentures, notes and/or other evidences of indebtedness in one or more series
at an aggregate initial offering price not to exceed $200,000,000 or its
equivalent in any other currency or composite currency.  The Debt Securities
may be offered as separate series in amounts, at prices and on terms to be
determined at the time of sale.  The accompanying Prospectus Supplement sets
forth with regard to the series of Debt Securities in respect of which this
Prospectus is being delivered the title, aggregate principal amount,
denominations (which may be in United States dollars, in any other currency or
in a composite currency), maturity, rate, if any (which may be fixed or
variable), and time of payment of any interest, any terms for redemption at the
option of the Company or the holder, any terms for sinking fund payments, any
listing on a securities exchange and the initial public offering price and any
other terms in connection with the offering and sale of such series of Debt
Securities.

         The Company may sell Debt Securities to or through underwriters, and
also may sell Debt Securities directly to other purchasers or through agents.
See "Plan of Distribution".  The accompanying Prospectus Supplement sets forth
the names of any underwriters or agents involved in the sale of the Debt
Securities in respect of which this Prospectus is being delivered, the
principal amounts, if any, to be purchased by underwriters and the
compensation, if any, of such underwriters or agents.

                               _________________

  THESE SECURITIES  HAVE  NOT  BEEN APPROVED OR DISAPPROVED BY THE  SECURITIES
  AND   EXCHANGE   COMMISSION  OR  ANY  STATE SECURITIES  COMMISSION  NOR  HAS
 THE   SECURITIES   AND   EXCHANGE   COMMISSION   OR   ANY   STATE   SECURITIES
      COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
       ANY  REPRESENTATION   TO   THE  CONTRARY  IS  A  CRIMINAL OFFENSE.


                               _________________


                 The date of this Prospectus is _______, 1996.





<PAGE>   3
Information contained herein is subject to completion or amendment.  A
registration statement relating to these securities has been filed with the
Securities and Exchange Commission.  These securities may not be sold nor may
offers to buy be accepted prior to the time the registration statement becomes
effective.  This prospectus shall not constitute an offer to sell or the
solicitation of an offer to buy nor shall there be any sale of these securities
in any state in which such offer, solicitation or sale would be unlawful prior
to registration or qualification under the securities laws of any such state.
<PAGE>   4
         IN CONNECTION WITH THE OFFERING OF CERTAIN DEBT SECURITIES, THE
UNDERWRITERS MAY OVER-ALLOT OR EFFECT TRANSACTIONS WHICH STABILIZE OR MAINTAIN
THE MARKET PRICES OF SUCH SECURITIES OR OTHER SECURITIES OF THE COMPANY AT
LEVELS ABOVE THOSE WHICH MIGHT OTHERWISE PREVAIL IN THE OPEN MARKET.  SUCH
TRANSACTIONS MAY BE EFFECTED ON THE NEW YORK STOCK EXCHANGE, IN THE
OVER-THE-COUNTER MARKET OR OTHERWISE.  SUCH STABILIZING, IF COMMENCED, MAY BE
DISCONTINUED AT ANY TIME.

                             _____________________

         THE COMMISSIONER OF INSURANCE OF THE STATE OF NORTH CAROLINA HAS NOT
APPROVED OR DISAPPROVED THIS OFFERING NOR HAS THE COMMISSIONER PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS.

                             _____________________

                             AVAILABLE INFORMATION

         Beckman Instruments, Inc. ("Beckman" or the "Company") has filed with
the Securities and Exchange Commission (the "Commission") a Registration
Statement on Form S-3 (of which this Prospectus is a part) (together with all
amendments thereto, the "Registration Statement") under the Securities Act of
1933, as amended (the "Securities Act"), with respect to the Debt Securities
offered hereby.  This Prospectus does not and any Prospectus Supplement will
not contain all of the information set forth in the Registration Statement,
certain portions of which have been omitted as permitted by the rules and
regulations of the Commission.  Statements contained in this Prospectus and in
any Prospectus Supplement as to the contents of any contract or other document
are not necessarily complete, and in each instance reference is made to the
copy of such contract or other document filed as an exhibit to the Registration
Statement, each such statement being qualified in all respects by such
reference and the exhibits and schedules thereto.  For further information
regarding the Company and the Debt Securities, reference is hereby made to the
Registration Statement and the exhibits and schedules thereto which may be
obtained from the Public Reference Section of the Commission, 450 Fifth Street,
N.W., Washington, D.C. 20549, at prescribed rates.

         The Company is subject to the informational requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and in
accordance therewith files reports, proxy statements and other information with
the Commission.  The Registration Statement, the exhibits and schedules forming
a part thereof and the reports, proxy statements and other information filed by
the Company with the Commission in accordance with the Exchange Act can be
inspected and copied at the Public Reference Section of the Commission, 450
Fifth Street, N.W., Washington, D.C. 20549, and at the following regional
offices of the Commission:  Seven World Trade Center, 13th Floor, New York, New
York 10048 and 500 West Madison Street, Suite 1400, Chicago, Illinois 60661.
Copies of such material can be obtained from the Public Reference Section of
the Commission, 450 Fifth Street, N.W., Washington, D.C. 20549, at prescribed
rates.  In addition, the Company's common stock is listed on the New York Stock
Exchange and similar information concerning the Company can be inspected and
copied at the New York Stock Exchange, 20 Broad Street, New York, New York
10005.





                                       2
<PAGE>   5
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

         The following documents have been filed by the Company with the
Commission and are incorporated by reference herein: (i) Annual Report on Form
10-K/A for the fiscal year ended December 31, 1995; and (ii) Proxy Statement
dated February 28, 1996.

         All documents filed by the Company pursuant to Section 13(a), 13(c),
14 and 15(d) of the Exchange Act subsequent to the date of this Prospectus and
prior to the termination of the offering made hereby shall be deemed to be
incorporated by reference herein and to be a part hereof from the date of
filing such documents.  Any statement contained herein or in a document
incorporated or deemed to be incorporated by reference herein shall be deemed
to be modified or superseded for purposes of this Prospectus or any Prospectus
Supplement to the extent that a statement contained herein, or in any other
subsequently filed document which also is or is deemed to be incorporated by
reference herein, modifies or supersedes such statement.  Any such statement so
modified or superseded shall not be deemed, except as so modified or
superseded, to constitute a part of this Prospectus or any Prospectus
Supplement.

         This Prospectus incorporates documents by reference which are not
presented herein or delivered herewith.  These documents are available upon
request from Beckman Instruments, Inc., 2500 Harbor Boulevard, Fullerton,
California 92634, Attention:  Office of Investor Relations, telephone (714)
773-7620.





                                       3
  
<PAGE>   6
                                  THE COMPANY

         The Company is one of the world's leading manufacturers of instrument
systems and test kits that make laboratories more efficient by simplifying and
automating chemistry and biology based analytical procedures.  The Company
designs, manufacturers, markets and services a broad range of laboratory
instrument systems, reagents and related products, which customers typically
use to conduct basic scientific research, new product research and development
or diagnostic analysis of patient samples.  In 1995 about 60 percent of the
Company's total sales were for diagnostic applications, principally in hospital
laboratories, while about 40 percent of such sales were for life science
applications in universities, medical schools and research institutes, or new
product research and development in pharmaceutical and biotechnology companies.
Slightly more than one-half of the Company's sales in 1995 were to customers
outside of the United States.

         The Company's primary expertise and activity is the integration of
chemical, biological, engineering and software sciences into complete systems
that simplify and automate biologically focused laboratory processes and the
distribution and support of those systems around the world.  These laboratory
processes can generally be grouped into four categories:

         .       Synthesis and Sample Preparation/Handling.  Synthesizing
                 compounds useful in subsequent analysis and scientific
                 investigation or placing material into a proper container,
                 with necessary pretreatment, dilution, measurement, weighing
                 and identification.

         .       Separation.  Isolating materials of interest from extraneous
                 material or separating mixtures into individual constituents,
                 often in preparation for subsequent processing and
                 measurement.

         .       Detection, Measurement and Characterization.  Determining the
                 identity, structure, or quantity of specific analytes
                 (compounds or molecules of interest) present in sample
                 specimens.

         .       Data Processing.  Acquiring, reporting, analyzing, archiving or
                 calculating the results of laboratory analysis.

                 Beckman's experience, knowledge and ability in simplifying and
automating these processes for biological laboratories forms a technological
continuum that extends across the Company.  From this common technical base
extends a range of products that are configured to meet specific needs of
academic research, pharmaceutical and biotechnology companies, hospitals,
physicians' offices and reference laboratories (large central laboratories to
which hospitals and physicians refer specialized tests).  By serving several
customer groups with differing needs related through common science, the
Company has the opportunity to broadly apply its technology.

                 The Company was founded in 1934 as a California corporation
and was reincorporated in Delaware in 1988.  The Company's principal executive
offices are located at 2500 Harbor Boulevard, Fullerton, California 92634, and
its telephone number is (714) 871-4848.





                                       4
<PAGE>   7
                                USE OF PROCEEDS

         The net proceeds to be received by the Company from the sale of the
Offered Debt Securities (as defined below) will be used as set forth in a
Prospectus Supplement relating to such Offered Debt Securities.

                       RATIO OF EARNINGS TO FIXED CHARGES

         The following table sets forth the ratio of earnings to fixed charges
for the Company for the periods indicated(1):

<TABLE>
<CAPTION>
                                                               FISCAL YEAR ENDED DECEMBER 31,
                      -----------------------------------------------------------------------------------------------------
                                1995                    1994                1993              1992              1991       
                      ------------------------  -------------------- ----------------- ------------------ -----------------
                                <S>                     <C>                 <C>               <C>                <C>
                                4.1                     4.5                 (2)               4.3                3.7
</TABLE>

________________________
(1)      The ratios of earnings to fixed charges were computed by dividing
         earnings by fixed charges.  For this purpose, earnings includes income
         before income taxes and fixed charges excluding capitalized interest.
         Fixed charges includes interest expense, capitalized interest and a
         portion of rent expense deemed representative of the interest factor.

(2)      Earnings were insufficient to cover fixed charges by $53.9 million for
         the fiscal year ended December 31, 1993.

                         DESCRIPTION OF DEBT SECURITIES

                 The following description of the terms of the Debt Securities
sets forth certain general terms and provisions of the Debt Securities to which
any Prospectus Supplement may relate.  The particular terms of the Debt
Securities offered by any Prospectus Supplement and the extent, if any, to
which such general provisions may apply to the Debt Securities so offered will
be described in the Prospectus Supplement relating to such Debt Securities.

                 The Senior Debt Securities will be issued under an Indenture
(the "Senior Indenture"), between the Company and a trustee, that will be filed
as an exhibit to or incorporated by reference in the Registration Statement of
which this Prospectus is a part.  The Subordinated Debt Securities will be
issued under an Indenture (the "Subordinated Indenture" and collectively with
the Senior Indenture, the "Indenture"), between the Company and a trustee
(collectively with the trustee under the Senior Indenture, the "Trustee"), that
will be filed as an exhibit to or incorporated by reference in the Registration
Statement of which this Prospectus is a part.  The Company has appointed The
First National Bank of Chicago as the Trustee for purposes of the Senior
Indenture and the Subordinated Indenture, but may appoint additional or
successor Trustees pursuant to the provisions of such Indentures.

                 The following summaries of certain provisions of the Indenture
do not purport to be complete and are subject to, and are qualified in their
entirety by reference to, all of the provisions of the Indenture, including the
definitions therein of certain terms capitalized in this Prospectus.  Wherever
particular sections, articles or defined terms of the Indenture are referred to
herein or in a Prospectus Supplement, such sections, articles or defined terms
are incorporated herein or therein by reference.  Unless specific reference is
set forth below to the Senior Indenture or the Subordinated Indenture, the
provisions described below are substantially identical in each such Indenture.





                                       5
<PAGE>   8
GENERAL

                 The Indenture will provide that Debt Securities in separate
series may be issued thereunder from time to time without limitation as to
aggregate principal amount.  The Company may specify a maximum aggregate
principal amount for the Debt Securities of any series.  (Section 301)  The
Debt Securities are to have such terms and provisions which are not
inconsistent with the Indenture, including as to maturity, principal and
interest, as the Company may determine.  Unless otherwise provided in the
applicable Prospectus Supplement, the Senior Debt Securities will rank on a
parity with other unsecured Senior Indebtedness of the Company, and the
Subordinated Debt Securities will rank on a parity with other subordinated debt
of the Company, and together with such other subordinated debt, will be
subordinate and junior in right of payment to the prior payment in full of the
Senior Indebtedness of the Company, as described below under "Subordination".

                 The applicable Prospectus Supplement will set forth the price
or prices at which the Debt Securities to be offered will be issued and will
describe the following terms of such Debt Securities:  (1) the title of such
Debt Securities; (2) any limit on the aggregate principal amount of such Debt
Securities or the series of which they are a part; (3) the Person to whom any
interest on a Security of the series shall be payable, if other than the Person
in whose name that Debt Security is registered at the close of business on the
Regular Record Date for such interest; (4) the date or dates on which the
principal of any of such Debt Securities will be payable; (5) the rate or rates
per annum at which any of such Debt Securities will bear interest, if any, or
the formula or provision pursuant to which such rate or rates are determined,
the date or dates from which any such interest will accrue, the Interest
Payment Dates on which any such interest will be payable and the Regular Record
Date for any such interest payable on any Interest Payment Date; (6) the place
or places where the principal of and any premium and interest on any of such
Debt Securities will be payable; (7) the period or periods within which, the
price or prices at which and the terms and conditions on which any of such Debt
Securities may be redeemed, in whole or in part, at the option of the Company;
(8) the obligation, if any, of the Company to redeem or purchase any of such
Debt Securities pursuant to any sinking fund or analogous provision or at the
option of the Holder thereof, and the period or periods within which, the price
or prices at which and the terms and conditions on which any of such Debt
Securities will be redeemed or purchased, in whole or in part, pursuant to any
such obligation; (9) the denominations in which any of such Debt Securities
will be issuable, if other than denominations of $1,000 and any integral
multiple thereof; (10) if the amount of principal of or any premium or interest
on any of such Debt Securities may be determined with reference to an index or
pursuant to a formula, the manner in which such amounts will be determined;
(11) if other than the currency of the United States of America, the currency,
currencies or currency units in which the principal of or any premium or
interest on any of such Debt Securities will be payable (and the manner in
which the equivalent of the principal amount thereof in the currency of the
United States of America is to be determined for any purpose, including for the
purpose of determining the principal amount deemed to be Outstanding at any
time); (12) if the principal of or any premium or interest on any of such Debt
Securities is to be payable, at the election of the Company or the Holder
thereof, in one or more currencies or currency units other than those in which
such Debt Securities are stated to be payable, the currency, currencies or
currency units in which payment of any such amount as to which such election is
made will be payable, the periods within which and the terms and conditions
upon which such election is to be made and the amount so payable (or the manner
in which such amount is to be determined); (13) if other than the entire
principal amount thereof, the portion of the principal amount of any of such
Debt Securities which will be payable upon declaration of acceleration of the
Maturity thereof; (14) if the principal amount payable at the Stated Maturity
of any of such Debt Securities will not be determinable as of any one or more
dates prior to the Stated Maturity, the amount which will be deemed to be such
principal amount as of any such date for any purpose, including the principal
amount thereof which will be due and payable upon any Maturity other than the
Stated Maturity or which will be deemed to





                                       6  

<PAGE>   9
be Outstanding as of any such date (or, in any such case, the manner in which
such deemed principal amount is to be determined); (15) if applicable, that
such Debt Securities, in whole or any specified part, are defeasible pursuant
to the provisions of the Indenture described under "Defeasance and Covenant
Defeasance -- Defeasance and Discharge" or "Defeasance and Covenant Defeasance
- -- Covenant Defeasance", or under both such captions; (16) whether any of such
Debt Securities will be issuable in whole or in part in the form of one or more
Global Securities and, if so, the respective Depositaries for such Global
Securities, the form of any legend or legends to be borne by any such Global
Security in addition to or in lieu of the legend referred to under "Global
Securities" and, if different from those described under such caption, any
circumstances under which any such Global Security may be exchanged in whole or
in part for Debt Securities registered, and any transfer of such Global
Security in whole or in part may be registered, in the names of Persons other
than the Depositary for such Global Security or its nominee; (17) any terms by
which any Debt Securities may be convertible into Common Stock, Preferred Stock
or other securities of the Company; (18) any addition to or change in the
Events of Default applicable to any of such Debt Securities and any change in
the right of the Trustee or the Holders to declare the principal amount of any
of such Debt Securities due and payable; (19) any addition to or change in the
covenants in the Indenture described under "Restrictive Covenants" applicable
to any of such Debt Securities; (20) whether such Debt Securities are
subordinate to any other unsecured indebtedness of the Company; and (21) any
other terms of such Debt Securities not inconsistent with the provisions of the
Indenture.  (Section 301)

                 Debt Securities, including Original Issue Discount Securities,
may be sold at a substantial discount below their principal amount.  Certain
special United States federal income tax considerations (if any) applicable to
Debt Securities sold at an original issue discount may be described in the
applicable Prospectus Supplement.  In addition, certain special United States
federal income tax or other considerations (if any) applicable to any Debt
Securities which are denominated in a currency or currency unit other than
United States dollars may be described in the applicable Prospectus Supplement.


FORM, EXCHANGE AND TRANSFER

                 The Debt Securities of each series will be issuable only in
fully registered form, without coupons, and, unless otherwise specified in the
applicable Prospectus Supplement, only in denominations of $1,000 and integral
multiples thereof.  (Section 302)

                 At the option of the Holder, subject to the terms of the
Indenture and the limitations applicable to Global Securities, Debt Securities
of each series will be exchangeable for other Debt Securities of the same
series of any authorized denomination and of a like tenor and aggregate
principal amount.  (Section 305)

                 Subject to the terms of the Indenture and the limitations
applicable to Global Securities, Debt Securities may be presented for exchange
as provided above or for registration of transfer (duly endorsed or with the
form of transfer endorsed thereon duly executed) at the office of the Security
Registrar or at the office of any transfer agent designated by the Company for
such purpose.  No service charge will be made for any registration of transfer
or exchange of Debt Securities, but the Company may require payment of a sum
sufficient to cover any tax or other governmental charge payable in connection
therewith.  Such transfer or exchange will be effected upon the Security
Registrar or such transfer agent, as the case may be, being satisfied with the
documents of title and identity of the person making the request.  The Company
has appointed the Trustee as Security Registrar.  Any transfer agent (in
addition to the Security Registrar) initially designated by the Company for any
Debt Securities will be named in the applicable Prospectus Supplement.
(Section 305)  The





                                       7
<PAGE>   10
Company may at any time designate additional transfer agents or rescind the
designation of any transfer agent or approve a change in the office through
which any transfer agent acts, except that the Company will be required to
maintain a transfer agent in each Place of Payment for the Debt Securities of
each series.  (Section 1002)

                 If the Debt Securities of any series (or of any series and
specified terms) are to be redeemed in part, the Company will not be required
to (i) issue, register the transfer of or exchange any Debt Security of that
series (or of that series and specified terms, as the case may be) during a
period beginning at the opening of business 15 days before the day of mailing
of a notice of redemption of any such Debt Security that may be selected for
redemption and ending at the close of business on the day of such mailing or
(ii) register the transfer of or exchange any Debt Security so selected for
redemption, in whole or in part, except the unredeemed portion of any such Debt
Security being redeemed in part.  (Section 305)


GLOBAL SECURITIES

                 Some or all of the Debt Securities of any series may be
represented, in whole or in part, by one or more Global Securities which will
have an aggregate principal amount equal to that of the Debt Securities
represented thereby.  Each Global Security will be registered in the name of a
Depositary or a nominee thereof identified in the applicable Prospectus
Supplement, will be deposited with such Depositary or nominee or a custodian
therefor and will bear a legend regarding the restrictions on exchanges and
registration of transfer thereof referred to below and any such other matters
as may be provided for pursuant to the Indenture.

                 Notwithstanding any provision of the Indenture or any Debt
Security described herein, no Global Security may be exchanged in whole or in
part for Debt Securities registered, and no transfer of a Global Security in
whole or in part may be registered, in the name of any Person other than the
Depositary for such Global Security or any nominee of such Depositary unless
(i) the Depositary has notified the Company that it is unwilling or unable to
continue as Depositary for such Global Security or has ceased to be qualified
to act as such as required by the Indenture, (ii) there shall have occurred and
be continuing an Event of Default with respect to the Debt Securities
represented by such Global Security or (iii) there shall exist such
circumstances, if any, in addition to or in lieu of those described above as
may be described in the applicable Prospectus Supplement.  All securities
issued in exchange for a Global Security or any portion thereof will be
registered in such names as the Depositary may direct.  (Sections 204 and 305)

                 As long as the Depositary, or its nominee, is the registered
Holder of a Global Security, the Depositary or such nominee, as the case may
be, will be considered the sole owner and Holder of such Global Security and
the Debt Securities represented thereby for all purposes under the Debt
Securities and the Indenture.  Except in the limited circumstances referred to
above, owners of beneficial interests in a Global Security will not be entitled
to have such Global Security or any Debt Securities represented thereby
registered in their names, will not receive or be entitled to receive physical
delivery of certificated Debt Securities in exchange therefor and will not be
considered to be the owners or Holders of such Global Security or any Debt
Securities represented thereby for any purpose under the Debt Securities or the
Indenture.  All payments of principal of and any premium and interest on a
Global Security will be made to the Depositary or its nominee, as the case may
be, as the Holder thereof.  The laws of some jurisdictions require that certain
purchasers of securities take physical delivery of such securities in
definitive form.  These laws may impair the ability to transfer beneficial
interests in a Global Security.




                                        8
<PAGE>   11
                 Ownership of beneficial interests in a Global Security will be
limited to institutions that have accounts with the Depositary or its nominee
("participants") and to persons that may hold beneficial interests through
participants.  In connection with the issuance of any Global Security, the
Depositary will credit, on its book-entry registration and transfer system, the
respective principal amounts of Debt Securities represented by the Global
Security to the accounts of its participants.  Ownership of beneficial
interests in a Global Security will be shown only on, and the transfer of those
ownership interests will be effected only through, records maintained by the
Depositary (with respect to participants' interests) or any such participant
(with respect to interests of persons held by such participants on their
behalf).  Payments, transfers, exchanges and others matters relating to
beneficial interests in a Global Security may be subject to various policies
and procedures adopted by the Depositary from time to time.  None of the
Company, the Trustee or any agent of the Company or the Trustee will have any
responsibility or liability for any aspect of the Depositary's or any
participant's records relating to, or for payments made on account of,
beneficial interests in a Global Security, or for maintaining, supervising or
reviewing any records relating to such beneficial interests.

                 Secondary trading in notes and debentures of corporate issuers
is generally settled in clearing-house or next-day funds.  In contrast,
beneficial interests in a Global Security may trade in the Depositary's
same-day funds settlement system, in which secondary market trading activity in
those beneficial interests would be required by the Depositary to settle in
immediately available funds.  There is no assurance as to the effect, if any,
that settlement in immediately available funds would have on trading activity
in such beneficial interests.  Also, settlement for purchases of beneficial
interests in a Global Security upon the original issuance thereof may be
required to be made in immediately available funds.


PAYMENT AND PAYING AGENTS

                 Unless otherwise indicated in the applicable Prospectus
Supplement, payment of interest on a Debt Security on any Interest Payment Date
will be made to the Person in whose name such Debt Security (or one or more
Predecessor Securities) is registered at the close of business on the Regular
Record Date for such interest.  (Section 307)

                 Unless otherwise indicated in the applicable Prospectus
Supplement, principal of and any premium and interest on the Debt Securities of
a particular series will be payable at the office of such Paying Agent or
Paying Agents as the Company may designate for such purpose from time to time,
except that at the option of the Company payment of any interest may be made by
check mailed to the address of the Person entitled thereto as such address
appears in the Security Register.  Unless otherwise indicated in the applicable
Prospectus Supplement, the corporate trust office of the Trustee in The City of
New York will be designated as the Company's sole Paying Agent for payments
with respect to Debt Securities of each series.  Any other Paying Agents
initially designated by the Company for the Debt Securities of a particular
series will be named in the applicable Prospectus Supplement.  The Company may
at any time designate additional Paying Agents or rescind the designation of
any Paying Agent or approve a change in the office through which any Paying
Agent acts, except that the Company will be required to maintain a Paying Agent
in each Place of Payment for the Debt Securities of a particular series.
(Section 1002)

                 All moneys paid by the Company to a Paying Agent for the
payment of the principal of or any premium or interest on any Debt Security
which remain unclaimed at the end of two years after such principal, premium or
interest has become due and payable will be repaid to the Company, and the
Holder of such Debt Security thereafter may look only to the Company for
payment thereof.  (Section 1003)





                                        9

<PAGE>   12
RESTRICTIVE COVENANTS

                 Unless any one or more of the following covenants are varied
as permitted by the Indenture, which variation will be described in the
applicable Prospectus Supplement, the following covenants will be applicable to
each series of Debt Securities.


         Limitation on Liens

                 The Indenture will provide that the Company will not, and will
not permit any Restricted Subsidiary to, create, incur, issue, assume or
guarantee any indebtedness of the Company or any Subsidiary secured by a Lien
upon any Principal Property, or upon shares of capital stock or evidences of
indebtedness issued by any Restricted Subsidiary and owned by the Company or
any Restricted Subsidiary, now owned or hereafter owned by the Company, without
making effective provision to secure all of the Debt Securities of each series
then outstanding by such Lien, equally and ratably with any and all other
indebtedness thereby secured, so long as such indebtedness shall be so secured.

                 The foregoing restrictions shall not apply, however, to (1)
Liens on any property existing at the time of the acquisition thereof; (2)
Liens on property of a corporation existing at the time such corporation is
merged into or consolidated with the Company or a Restricted Subsidiary or at
the time of a sale, lease or other disposition of the properties of such
corporation (or a division thereof) as an entirety or substantially as an
entirety to the Company or a Restricted Subsidiary, provided that such Lien as
a result of such merger, consolidation, sale, lease or other disposition is not
extended to property owned by the Company or such Restricted Subsidiary
immediately prior thereto; (3) Liens on property of a corporation existing at
the time such corporation becomes a Restricted Subsidiary; (4) Liens securing
indebtedness of a Restricted Subsidiary to the Company or to another Restricted
Subsidiary; (5) Liens to secure all or part of the cost of acquisition,
construction, development or improvement of the underlying property, or to
secure indebtedness incurred to provide funds for any such purpose, provided
that the commitment of the creditor to extend the credit secured by any such
Lien shall have been obtained not later than twenty-four months after the later
of (a) the completion of the acquisition, construction, development or
improvement of such property or (b) the placing in operation of such property
or of such property as so constructed, developed or improved; (6) Liens on any
property created, assumed or otherwise brought into existence in contemplation
of the sale or other disposition of the underlying property, whether directly
or indirectly, by way of share disposition or otherwise; provided that the
Company must have disposed of such property within 180 days from the creation
of such Liens and any indebtedness secured by such Liens shall be without
recourse to the Company or any Subsidiary; (7) Liens in favor of the United
States of America or any State thereof, or any department, agency or
instrumentality or political subdivision thereof, to secure partial, progress,
advance or other payments; (8) Liens to secure indebtedness of joint ventures
in which the Company or a Restricted Subsidiary has an interest, to the extent
such Liens are on property or assets of, or equity interests in, such joint
ventures; (9) Liens on Equipment Held for Resale; and (10) any indebtedness
secured by Liens existing on the date of the Indenture or any extension,
renewal or replacement or refunding of any Lien existing on the date of the
Indenture or referred to in clauses (1) to (3) or (5); provided, however, that
the aggregate principal amount of indebtedness secured thereby and not
otherwise authorized by clauses (1) to (3) or (5), shall not exceed the
aggregate principal amount of indebtedness, plus any premium or fee payable in
connection with any such extension, renewal, replacement, or refunding, so
secured at the time of such extension, renewal, replacement or refunding.

                 Notwithstanding the restrictions described above, the Company
and its Restricted Subsidiaries may incur, issue, assume or guarantee debt
secured by Liens without equally and ratably





                                       10
<PAGE>   13
securing the Debt Securities of each series then outstanding, provided, that at
the time of such incurrence, issuance, assumption or guarantee, after giving
effect thereto and to the retirement of any indebtedness which is concurrently
being retired, the aggregate amount of all outstanding indebtedness secured by
Liens so incurred, other than any indebtedness secured by Liens permitted as
described in clauses (1) through (10) above, and together with all outstanding
Attributable Value of all sale and leaseback transactions permitted as
described in "Limitation on Sale and Leaseback Transactions", does not exceed
15% of the Consolidated Net Tangible Assets (defined below) of the Company.
(Section 1008)


         Limitation on Sale and Leaseback Transactions

                 Sale and leaseback transactions by the Company or any
Restricted Subsidiary involving any Principal Property are prohibited unless
either (1) the Company or its Restricted Subsidiaries would be entitled
pursuant to the provisions described in clauses (1) through (10) above under
"Limitation on Liens" to issue assume or guarantee indebtedness secured by a
Lien on such Principal Property without equally and ratably securing the Debt
Securities of each series than outstanding or (2) the Company or such
Restricted Subsidiary shall apply, or cause to be applied, to the retirement of
its secured debt within 120 days after the effective date of the sale and
leaseback transaction, an amount not less than the greater of (i) the net
proceeds of the sale of the Principal Property leased pursuant to such
arrangement or (ii) the fair market value of the Principal Property so leased.
This restriction will not apply to a sale and leaseback transaction between the
Company and a Restricted Subsidiary or between Restricted Subsidiaries or
involving the taking back of a lease for a period of less than three years.

                 Notwithstanding the restrictions described above, the Company
or any Restricted Subsidiary may enter into a sale and leaseback transaction
provided, that at the time of such transaction, after giving effect thereto,
the Attributable Value thereof, together with all indebtedness secured by Liens
permitted pursuant to the Indenture as described above under "Limitation on
Liens" other than all indebtedness secured by Liens permitted as described in
clauses (1) through (10) above under "Limitation on Liens" and other than the
Attributable Value of such sale and leaseback transactions permitted by the
preceding paragraph, does not exceed 15% of Consolidated Net Tangible Assets of
the Company.  (Section 1009)


         Certain Definitions

                 The term "Attributable Value" in respect of any sale and
leaseback transaction means, as of the time of determination, the total
obligation (discounted to present value at the highest rate of interest
specified by the terms of any series of Debt Securities then outstanding
compounded semi-annually) of the lessee for rental payments (other than amounts
required to be paid on account of property taxes as well as maintenance,
repairs, insurance, water rates and other items which do not constitute
payments for property rights) during the remaining portion of the base term of
the lease included in such sale and leaseback transaction.  (Section 101)

                 "Consolidated Net Tangible Assets" of the Company means the
aggregate amount of assets (less applicable reserves and other properly
deductible items) after deducting therefrom (a) all current liabilities
(excluding any indebtedness for money borrowed having a maturity of less than
12 months from the date of the most recent consolidated balance sheet of the
Company but which by its terms is renewable or extendable beyond 12 months from
such date at the option of the borrower) and (b) all goodwill, trade names,
patents, unamortized debt discount and expense and any other like





                                       11

<PAGE>   14
intangibles, all as set forth on the most recent consolidated balance sheet of
the Company and computed in accordance with generally accepted accounting
principles.  (Section 101)

                 "Equipment Held for Resale" means instrument systems and
related accessories and components manufactured or assembled by the Company
that are owned and held for placement in facilities of the Company's customers.

                 "Lien" means, with respect to any property or assets, any
mortgage or deed of trust, pledge, hypothecation, assignment, security
interest, lien, encumbrance, or other security arrangement of any kind or
nature whatsoever on or with respect to such property or assets (including any
conditional sale or other title retention agreement having substantially the
same economic effect as any of the foregoing).  (Section 101)

                 "Principal Property" means any real property of the Company or
any of its Subsidiaries, and any equipment located at or comprising a part of
any such property, having a net book value, as of the date of determination, in
excess of the greater of $50,000,000 and 10% of Consolidated Net Tangible
Assets of the Company; provided, however, that Principal Property shall not
include Equipment Held For Resale.  (Section 101)

                 "Restricted Subsidiary" means any Subsidiary of the Company
which owns or leases a Principal Property.  (Section 101)


CONSOLIDATION, MERGER AND SALE OF ASSETS

                 The Company may not consolidate with or merge into, or convey,
transfer or lease its properties and assets substantially as an entirety to,
any Person (a "successor Person"), and may not permit any Person to merge into,
or convey, transfer or lease its properties and assets substantially as an
entirety to, the Company, unless (i) the successor Person (if any) is a
corporation, partnership, trust or other entity organized and validly existing
under the laws of any U.S. domestic jurisdiction and expressly assumes the
Company's obligations on the Debt Securities and under the Indenture, (ii)
immediately after giving effect to the transaction, no Event of Default, and no
event which, after notice or lapse of time or both, would become an Event of
Default, shall have occurred and be continuing under the Indenture, (iii) if,
as a result of the transaction, property of the Company would become subject to
a Lien that would not be permitted under the limitation on Liens described
above under "Restrictive Covenants", the Company takes such steps as shall be
necessary to secure the Debt Securities equally and ratably with (or prior to)
the indebtedness secured by such Lien and (iv) certain other conditions are
met.  (Section 801)


EVENTS OF DEFAULT

                 Each of the following will constitute an Event of Default
under the Indenture with respect to Debt Securities of any series: (a) failure
to pay principal of or any premium on any Debt Security of that series when
due, whether or not such payment is prohibited by the subordination provisions
of the Subordinated Indenture; (b) failure to pay any interest on any Debt
Securities of that series when due, continued for 30 days, whether or not such
payment is prohibited by the subordination provisions of the Subordinated
Indenture; (c) failure to deposit any sinking fund payment, when due, in
respect of any Debt Security of that series, whether or not such deposit is
prohibited by the subordination provisions of the Subordinated Indenture; (d)
failure to perform any other covenant of





                                       12
<PAGE>   15
the Company in the Indenture (other than a covenant included in the Indenture
solely for the benefit of a series of Debt Securities other than that series),
continued for 60 days after written notice has been given as provided in the
Indenture; (e) failure to pay when due (subject to any applicable grace period)
the principal of, or acceleration of, any indebtedness for money borrowed by
the Company (including a default with respect to Debt Securities other than
that series) having an aggregate principal amount outstanding of at least
$15,000,000, if in the case of any such failure, such indebtedness has not been
discharged or, in the case of any such acceleration, such acceleration has not
been rescinded or annulled, in each case within 10 days after written notice
has been given by the Trustee, or the Holders of at least 25% in aggregate
principal amount of the Outstanding Debt Securities of that series, as provided
in the Indenture; (f) certain events in bankruptcy, insolvency or
reorganization; and (g) any other Event of Default provided with respect to
Debt Securities of that series.  (Section 501)

                 If an Event of Default (other than an Event of Default
described in clause (f) above) with respect to the Debt Securities of any
series at the time Outstanding shall occur and be continuing, either the
Trustee or the Holders of at least 25% in aggregate principal amount of the
Outstanding Debt Securities of that series by notice as provided in the
Indenture may declare the aggregate principal amount of the Debt Securities of
that series (or, in the case of any Debt Security that is an Original Issue
Discount Security or the aggregate principal amount of which is not then
determinable, such portion of the aggregate principal amount of such Debt
Security, or such other amount in lieu of such aggregate principal amount, as
may be specified in the terms of such Debt Security) to be due and payable
immediately.  If an Event of Default described in clause (f) above with respect
to the Debt Securities of any series at the time Outstanding shall occur, the
aggregate principal amount of all the Debt Securities of that series (or, in
the case of any such Original Issue Discount Security or other Debt Security,
such specified amount) will automatically, and without any action by the
Trustee or any Holder, become immediately due and payable.  After any such
acceleration, but before a judgment or decree for payment of money has been
obtained by the Trustee, the Holders of a majority in aggregate principal
amount of the Outstanding Debt Securities of that series may, under certain
circumstances, rescind and annul such acceleration if all Events of Default,
other than the non-payment of accelerated principal (or other specified
amount), have been cured or waived as provided in the Indenture.  (Section 502)
For information as to waiver of defaults, see "Modification and Waiver".

                 Subject to the provisions of the Indenture relating to the
duties of the Trustee in case an Event of Default shall occur and be
continuing, the Indenture provides that the Trustee will be under no obligation
to exercise any of its rights or powers under the Indenture at the request or
direction of any of the Holders, unless such Holders shall have offered to the
Trustee reasonable indemnity.  (Section 603) Subject to such provisions for the
indemnification of the Trustee, the Indenture provides that Holders of at least
a majority in aggregate principal amount of the Outstanding Debt Securities of
any series will have the right to direct the time, method and place of
conducting any proceeding for any remedy available to the Trustee or exercising
any trust or power conferred on the Trustee with respect to the Debt Securities
of that series.  (Section 512)

                 No Holder of any Debt Security of any series will have any
right to institute any proceeding with respect to the Indenture, or for the
appointment of a receiver or a trustee, or for any other remedy thereunder,
unless (i) such Holder has previously given to the Trustee written notice of a
continuing Event of Default with respect to the Debt Securities of that series,
(ii) the Holders of at least 25% in aggregate principal amount of the
Outstanding Debt Securities of that series have made written request, and such
Holder or Holders have offered reasonable indemnity, to the Trustee to
institute such proceeding as trustee and (iii) the Trustee has failed to
institute such proceeding, and has not received from the Holders of a majority
in aggregate principal amount of the Outstanding Debt Securities of that series
a direction inconsistent with such request, within 60 days after such notice,
request and offer.  (Section 507)  However, such limitations do not apply to a
suit instituted by a





                                      13
<PAGE>   16
Holder of a Debt Security for the enforcement of payment of the principal of or
any premium or interest on such Debt Security on or after the applicable due
date specified in such Debt Security.  (Section 508)

                 The Company will be required to furnish to the Trustee
annually a statement by certain of its officers as to whether or not the
Company, to their knowledge, is in default in the performance or observance of
any of the terms, provisions and conditions of the Indenture and, if so,
specifying all such known defaults.  (Section 1004)


SUBORDINATION

                 The payment of the principal of and interest on the
Subordinated Debt Securities will, to the extent set forth in the Indenture
relating thereto, be subordinated in right of payment to the prior payment in
full of all Senior Indebtedness (as defined).  Upon any payment or distribution
of assets to creditors upon any liquidation, dissolution, winding up,
reorganization, assignment for the benefit of creditors, marshalling of assets
or any bankruptcy, insolvency, receivership or similar proceedings of the
Company, the holders of all Senior Indebtedness will first be entitled to
receive payment in full of all amounts due or to become due thereon before the
Holders of the Subordinated Debt Securities will be entitled to receive any
payment in respect of the principal of or interest thereon.  In the event of
the acceleration of the maturity of any Subordinated Debt Securities, the
holders of all Senior Indebtedness will first be entitled to receive payment in
full of all amounts due thereon before the Holders of the Subordinated Debt
Securities will be entitled to receive any payment upon the principal of or
interest thereon.  No payments on account of principal or interest in respect
of the Subordinated Debt Securities may be made if there shall have occurred
and be continuing beyond any applicable grace period a default in any payment
with respect to Senior Indebtedness, or if there shall have occurred an event
of default with respect to any Senior Indebtedness permitting the holders
thereof to accelerate the maturity thereof, or if any judicial proceeding shall
be pending with respect to any such default.  (Article Fifteen of the
Subordinated Indenture)

                 By reason of such subordination, in the event of insolvency,
Holders of the Subordinated Debt Securities may recover less, ratably, than
other creditors of the Company, including holders of Senior Indebtedness.

                 "Senior Indebtedness" will be defined in the Subordinated
Indenture to mean the principal of (and premium, if any) and interest on (a)
all indebtedness of the Company (including indebtedness of others guaranteed by
the Company) other than the Subordinated Debt Securities, which is (i) for
money borrowed or (ii) evidenced by a note or similar instrument given in
connection with the acquisition of any businesses, properties or assets of any
kind, (b) obligations of the Company as lessee under leases required to be
capitalized on the balance sheet of the lessee under generally accepted
accounting principles and leases of property or assets made as part of any sale
and leaseback transaction to which the Company is a party and (c) amendments,
renewals, extensions, modifications and refundings of any such indebtedness or
obligation, unless in any case in the instrument creating or evidencing any
such indebtedness or obligation or pursuant to which the same is outstanding it
is provided that such indebtedness or obligation is not superior in right of
payment to the Subordinated Debt Securities or such indebtedness or obligation
is subordinated to senior indebtedness of the Company to substantially the same
extent as the Subordinated Debt Securities are subordinated to the Senior
Indebtedness, in each case whether such indebtedness or obligation is
outstanding on the date of the Indenture or thereafter created, incurred or
assumed.  The term "indebtedness for money borrowed" when used with respect to
the Company shall mean any obligation of, or obligation guaranteed by, the
Company for repayment of borrowed money, whether or not evidenced by bonds,





                                      14

<PAGE>   17
debentures, notes or other written instruments, and any deferred obligation of,
or any such obligation guaranteed by the Company, for the payment of the
purchase price of property or assets (but not including trade payables).
(Section 101 of the Subordinated Indenture)  The Indenture relating to the
Subordinated Debt Securities does not prohibit or limit the incurrence of
additional Senior Indebtedness.  As of December 31, 1995, the Company had
outstanding $189.8 million of Senior Indebtedness.


MODIFICATION AND WAIVER

                 Modifications and amendments of the Indenture may be made by
the Company and the Trustee with the consent of the Holders of at least a
majority in aggregate principal amount of the Outstanding Debt Securities of
each series affected by such modification or amendment; provided, however, that
no such modification or amendment may, without the consent of the Holder of
each Outstanding Debt Security affected thereby, (a) change the Stated Maturity
of the principal of, or any installment of principal of or interest on, any
Debt Security, (b) reduce the principal amount of, or any premium or interest
on, any Debt Security, (c) reduce the amount of principal of an Original Issue
Discount Security or any other Debt Security payable upon acceleration of the
Maturity thereof, (d) change the place or currency of payment of principal of,
or any premium or interest on, any Debt Security, (e) impair the right to
institute suit for the enforcement of any payment on or with respect to any
Debt Security, (f) modify the subordination provisions in a manner adverse to
the Holders of the Debt Securities, (g) reduce the percentage in principal
amount of Outstanding Debt Securities of any series, the consent of whose
Holders is required for modification or amendment of the Indenture, (h) reduce
the percentage in principal amount of Outstanding Debt Securities of any series
necessary for waiver of compliance with certain provisions of the Indenture or
for waiver of certain defaults or (i) modify such provisions with respect to
modification and waiver.  (Section 902)

                 The Holders of at least a majority in aggregate principal
amount of the Outstanding Debt Securities of any series may waive compliance by
the Company with certain restrictive provisions of the Indenture.  (Section
1010)  The Holders of at least a majority in aggregate principal amount of the
Outstanding Debt Securities of any series may waive any past default under the
Indenture, except a default in the payment of principal, premium or interest
and certain covenants and provisions of the Indenture which cannot be amended
without the consent of the Holder of each Outstanding Debt Security of such
series affected.  (Section 513)

                 The Indenture will provide that in determining whether the
Holders of the requisite principal amount of the Outstanding Debt Securities
have given or taken any direction, notice, consent, waiver or other action
under the Indenture as of any date, (i) the principal amount of an Original
Issue Discount Security that will be deemed to be Outstanding will be the
amount of the principal thereof that would be due and payable as of such date
upon acceleration of the Maturity thereof to such date, (ii) if, as of such
date, the principal amount payable at the Stated Maturity of a Debt Security is
not determinable (for example, because it is based on an index), the principal
amount of such Debt Security deemed to be Outstanding as of such date will be
an amount determined in the manner prescribed for such Debt Security and (iii)
the principal amount of a Debt Security denominated in one or more foreign
currencies or currency units that will be deemed to be Outstanding will be the
U.S. dollar equivalent, determined as of such date in the manner prescribed for
such Debt Security, of the principal amount of such Debt Security (or, in the
case of a Debt Security described in clause (i) or (ii) above, of the amount
described in such clause).  Certain Debt Securities, including those for whose
payment or redemption money has been deposited or set aside in trust for the
Holders and those that have been fully defeased pursuant to Section 1402, will
not be deemed to be Outstanding.  (Section 101)





                                       15
<PAGE>   18
                 Except in certain limited circumstances, the Company will be
entitled to set any day as a record date for the purpose of determining the
Holders of Outstanding Debt Securities of any series entitled to give or take
any direction, notice, consent, waiver or other action under the Indenture, in
the manner and subject to the limitations provided in the Indenture.  If a
record date is set for any action to be taken by Holders of a particular
series, such action may be taken only by persons who are Holders of Outstanding
Debt Securities of that series on the record date.  To be effective, such
action must be taken by Holders of the requisite principal amount of such Debt
Securities within a specified period following the record date.  For any
particular record date, this period will be 180 days or such other period as
may be specified by the Company, and may be shortened or lengthened from time
to time.  (Section 104)


DEFEASANCE AND COVENANT DEFEASANCE

                 If and to the extent indicated in the applicable Prospectus
Supplement, the Company may elect, at its option at any time, to have the
provisions of Section 1402, relating to defeasance and discharge of
indebtedness, or Section 1403, relating to defeasance of certain restrictive
covenants in the Indenture, applied to the Debt Securities of any series, or to
any specified part of a series.  (Section 1401)

         Defeasance and Discharge.  The Indenture will provide that, upon the
Company's exercise of its option (if any) to have Section 1402 applied to any
Debt Securities, the Company will be discharged from all its obligations, and,
in the case of Subordinated Debt Securities, the provisions of Article Fifteen
of the Subordinated Indenture relating to subordination will cease to be
effective, with respect to such Debt Securities (except for certain obligations
to exchange or register the transfer of Debt Securities, to replace stolen,
lost or mutilated Debt Securities, to maintain paying agencies and to hold
moneys for payment in trust) upon the deposit in trust for the benefit of the
Holders of such Debt Securities of money or U.S. Government Obligations, or
both, which, through the payment of principal and interest in respect thereof
in accordance with their terms, will provide money in an amount sufficient to
pay the principal of and any premium and interest on such Debt Securities on
the respective Stated Maturities in accordance with the terms of the Indenture
and such Debt Securities.  Such defeasance or discharge may occur only if,
among other things, the Company has delivered to the Trustee an Opinion of
Counsel to the effect that the Company has received from, or there has been
published by, the United States Internal Revenue Service a ruling, or there has
been a change in tax law, in either case to the effect that Holders of such
Debt Securities will not recognize gain or loss for federal income tax purposes
as a result of such deposit, defeasance and discharge and will be subject to
federal income tax on the same amount, in the same manner and at the same times
as would have been the case if such deposit, defeasance and discharge were not
to occur.  (Sections 1402 and 1404)

         Defeasance of Certain Covenants.  The Indenture will provide that,
upon the Company's exercise of its option (if any) to have Section 1403 applied
to any Debt Securities, the Company may omit to comply with certain restrictive
covenants, including those described under "Restrictive Covenants" and in
clause (iii) under "Consolidation, Merger and Sale of Assets" and any that may
be described in the applicable Prospectus Supplement, and the occurrence of
certain Events of Default, which are described above in clause (d) (with
respect to such restrictive covenants) and clause (e) under "Events of Default"
and any that may be described in the applicable Prospectus Supplement, will be
deemed not to be or result in an Event of Default and in the case of
Subordinated Debt Securities the provisions of Article Fifteen of the
Subordinated Indenture relating to subordination will cease to be effective, in
each case with respect to such Debt Securities.  The Company, in order to
exercise such option, will be required to deposit, in trust for the benefit of
the Holders of such Debt Securities, money or U.S.  Government Obligations, or
both, which, through the payment of principal and interest





                                       16
<PAGE>   19
in respect thereof in accordance with their terms, will provide money in an
amount sufficient to pay the principal of and any premium, if any, and interest
on such Debt Securities on the respective Stated Maturities in accordance with
the terms of the Indenture and such Debt Securities.  The Company will also be
required, among other things, to deliver to the Trustee an Opinion of Counsel
satisfying the requirements of the Indenture, to the effect that Holders of
such Debt Securities will not recognize gain or loss for federal income tax
purposes as a result of such deposit and defeasance of certain obligations and
will be subject to federal income tax on the same amount, in the same manner
and at the same times as would have been the case if such deposit and
defeasance were not to occur.  In the event the Company exercised this option
with respect to any Debt Securities and such Debt Securities were declared due
and payable because of the occurrence of any Event of Default, the amount of
money and U.S. Government Obligations so deposited in trust would be sufficient
to pay amounts due on such Debt Securities at the time of their respective
Stated Maturities but may not be sufficient to pay amounts due on such Debt
Securities at the time of any acceleration resulting from such Event of
Default.  In such case, the Company would remain liable for such payments.
(Sections 1403 and 1404)


NOTICES

                 Notices to Holders of Debt Securities will be given by mail to
the addresses of such Holders as they may appear in the Security Register.
(Section 106)


TITLE

                 The Company, the Trustee and any agent of the Company or the
Trustee may treat the Person in whose name a  Debt Security is registered as
the absolute owner thereof (whether or not such Debt Security may be overdue)
for the purpose of making payment and for all other purposes.  (Section 308)


GOVERNING LAW

                 The Indenture and the Debt Securities will be governed by, and
construed in accordance with, the law of the State of New York.  (Section 112)


INFORMATION CONCERNING THE TRUSTEE

                 The Company maintains banking relationships in the ordinary
course of business with the Trustee.

                 The occurrence of a default under either Indenture could
create a conflicting interest for the Trustee under the Trust Indenture Act of
1939, as amended by the Trust Indenture Reform Act of 1990 (the "Trust
Indenture Act").  If the default has not been cured or waived within 90 days
after the Trustee has or acquires a conflicting interest, the Trustee generally
is required by the Trust Indenture Act to eliminate such conflicting interest
or resign as Trustee with respect to the Senior Debt Securities or Subordinated
Debt Securities.  In the event of the Trustee's resignation, the Company shall
promptly appoint a successor trustee with respect to the affected Debt
Securities.





                                      17
<PAGE>   20
                              PLAN OF DISTRIBUTION

         The Company may sell Debt Securities to or through underwriters and
also may sell Debt Securities directly to other purchasers or through agents.

         The distribution of the Debt Securities may be effected from time to
time in one or more transactions at a fixed price or prices, which may be
changed, or at market prices prevailing at the time of sale, at prices related
to such prevailing market prices or at negotiated prices.

         In connection with the sale of Debt Securities, underwriters may
receive compensation from the Company or from purchasers of Debt Securities for
whom they may act as agents in the form of discounts, concessions or
commissions.  Underwriters may sell Debt Securities to or through dealers, and
such dealers may receive compensation in the form of discounts, concessions or
commissions from the underwriters and/or commissions from the purchasers for
whom they may act as agents.  Underwriters, dealers and agents that participate
in the distribution of Debt Securities may be deemed to be underwriters, and
any discounts or commissions received by them from the Company and any profit
on the resale of Debt Securities by them may be deemed to be underwriting
discounts and commissions, under the Securities Act.  Any such underwriter or
agent will be identified, and any such compensation received from the Company
will be described, in the Prospectus Supplement.

         Under agreements which may be entered into by the Company,
underwriters and agents who participate in the distribution of Debt Securities
may be entitled to indemnification by the Company against certain liabilities,
including liabilities under the Act.

         If so indicated in the Prospectus Supplement, the Company will
authorize underwriters or other persons acting as the Company's agents to
solicit offers by certain institutions to purchase Debt Securities from the
Company pursuant to contracts providing for payment and delivery on a future
date.  Institutions with which such contracts may be made include commercial
and savings banks, insurance companies, pension funds, investment companies,
educational and charitable institutions and others, but in all cases such
institutions must be approved by the Company.  The obligations of any purchaser
under any such contract will be subject to the condition that the purchase of
the Offered Debt Securities shall not at the time of delivery be prohibited
under the laws of the jurisdiction to which such purchaser is subject.  The
underwriters and such other agents will not have any responsibility in respect
of the validity or performance of such contracts.


                                 LEGAL MATTERS

         The validity of the Debt Securities will be passed upon for the
Company by Latham & Watkins, Los Angeles, California and for any underwriters
or agents by Sullivan & Cromwell, Los Angeles, California.





                                       18
<PAGE>   21
                                    EXPERTS

         The financial statements of the Company as of December 31, 1995 and
1994, and for each of the years in the three-year period ended December 31,
1995, have been incorporated by reference herein in reliance upon the report of
KPMG Peat Marwick LLP, independent certified public accountants, incorporated
by reference herein, and upon the authority of said firm as experts in
accounting and auditing.

         The report of KPMG Peat Marwick LLP covering the December 31, 1994 and
1993, financial statements refers to the adoption of the Financial Accounting
Standards Board's Statement of Financial Accounting Standards No. 112,
"Employers' Accounting for Postemployment Benefits", in 1994 and Statement of
Financial Accounting Standards No. 109, "Accounting for Income Taxes", and
Statement of Financial Accounting Standards No. 106, "Employers' Accounting for
Postretirement Benefits Other Than Pensions", in 1993.





                                      19

<PAGE>   22
                                    PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

         The estimated expenses, other than underwriting discounts and
commissions, in connection with this offering are estimated as follows:

<TABLE>
 <S>                                                                             <C>
 SEC Registration Fee  . . . . . . . . . . . . . . . . . . . . . . . . .   $ 68,966
 Rating Agency Fees  . . . . . . . . . . . . . . . . . . . . . . . . . .    140,000
 Blue Sky fees and expenses  . . . . . . . . . . . . . . . . . . . . . .     16,000
 Printing and shipping expenses  . . . . . . . . . . . . . . . . . . . .    150,000
 Legal fees and expenses . . . . . . . . . . . . . . . . . . . . . . . .     40,000
 Accounting fees and expenses  . . . . . . . . . . . . . . . . . . . . .     25,000
 Trustee fees  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     15,000
 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     45,034
                                                                           --------
     Total                                                                 $500,000
                                                                           ========
</TABLE>

ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

         The Registrant's Third Restated Certificate of Incorporation provides
that a director of the Registrant shall not be personally liable to the
Registrant or its stockholders for monetary damages for breach of fiduciary
duty as a director, except (i) for any breach of the director's duty of loyalty
to the registrant or its stockholders, (ii) for acts or omissions not in good
faith or which involve intentional misconduct or a knowing violation of law,
(iii) under Section 174 of the Delaware General Corporation Law (the "DGCL"),
or (iv) for any transaction from which the director derived an improper
personal benefit.

         The Registrant's Third Restated Certificate of Incorporation and
Bylaws provide generally that each person who is or was a director or officer
of the registrant shall be indemnified and held harmless by the registrant to
the fullest extent authorized by the DGCL.  Section 145 of the DGCL permits a
corporation, subject to certain limitations, to indemnify any person who was or
is a party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding by reason of the fact that such person is
or was a director, officer, employee or agent of the corporation, or was
serving in any of such capacities for another entity at the request of the
corporation, against expenses (including attorneys' fees), judgments, fines and
certain settlements actually and reasonably incurred by such person.

         The Registrant maintains directors' and officers' liability insurance
which covers certain liabilities and expenses of directors and officers of the
Registrant and covers the Registrant for reimbursement of payments to directors
and officers in respect of such liabilities and expenses.

ITEM 16.  EXHIBITS.

See Exhibit Index.





                                         II-1
<PAGE>   23
ITEM 17.  UNDERTAKINGS.

         (a)     The undersigned Registrant hereby undertakes:

                 (1)      To file, during any period in which offers or sales
         are being made, a post-effective amendment to this Registration
         Statement:

                          (i)     To include any prospectus required by Section
                 10(a)(3) of the Securities Act of 1933, as amended (the
                 "Securities Act");

                          (ii)    To reflect in the prospectus any facts or
                 events arising after the effective date of the Registration
                 Statement (or the most recent post-effective amendment
                 thereof) which, individually or in the aggregate, represent a
                 fundamental change in the information set forth in the
                 Registration Statement.  Notwithstanding the foregoing, any
                 increase or decrease in volume of securities offered (if the
                 total dollar value of securities offered would not exceed that
                 which was registered) and any deviation from the low or high
                 and of the estimated maximum offering range may be reflected
                 in the form of prospectus filed with the Commission pursuant
                 to Rule 424(b) if, in the aggregate, the changes in volume and
                 price represent no more than 20 percent change in the maximum
                 aggregate offering price set forth in the "Calculation of
                 Registration Fee" table in the effective registration
                 statement;

                          (iii)   To include any material information with
                 respect to the plan of distribution not previously disclosed
                 in the Registration Statement or any material change to such
                 information in the Registration Statement;

         provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not
         apply if the information required to be included in a post-effective
         amendment by those paragraphs is contained in periodic reports filed
         with or furnished to the Commission by the Registrant pursuant to
         Section 13 or Section 15(d) of the Securities Exchange Act of 1934, as
         amended (the "Exchange Act"), that are incorporated by reference in
         the Registration Statement.

                 (2)      That, for the purpose of determining any liability
         under the Securities Act each such post-effective amendment shall be
         deemed to be a new registration statement relating to the securities
         offered therein, and the offering of such securities at that time
         shall be deemed to be the initial bona fide offering thereof.

                 (3)      To remove from registration by means of a
         post-effective amendment any of the securities being registered which
         remain unsold at the termination of the offering.

         (b)     The undersigned Registrant hereby undertakes, that, for
purposes of determining any liability under the Securities Act, each filing of
the Registrant's annual report pursuant to Section 13(a) or 15(d) of the
Exchange Act (and, where applicable, each filing of an employee benefit plan's
annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in the Registration Statement shall be deemed to be a
new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

         (c)     Insofar as indemnification for liabilities arising under the
Securities Act may be permitted to directors, officers and controlling persons
of the registrant pursuant to the foregoing provisions, or otherwise, the
Registrant has been advised that in the opinion of the Commission such





                                       II-2

<PAGE>   24
indemnification is against public policy as expressed in the Securities Act and
is, therefore, unenforceable.  In the event that a claim for indemnification
against such liabilities (other than the payment by the registrant of expenses
incurred or paid by a director, officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by
such director, officer or controlling person in connection with the securities
being registered, the Registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Securities Act and will be governed
by the final adjudication of such issue.

         (d)     The undersigned Registrant hereby undertakes that:

                 (1)      For purposes of determining any liability under the
         Securities Act, the information omitted from the form of prospectus
         filed as part of this Registration Statement in reliance upon Rule
         430A and contained in a form of prospectus filed by the registrant
         pursuant to Rule 424(b)(1) or (4) or 497(h) under the Securities Act
         shall be deemed to be part of this Registration Statement as of the
         time it was declared effective.

                 (2)      For the purpose of determining any liability under
         the Securities Act, each post-effective amendment that contains a form
         of prospectus shall be deemed to be a new registration statement
         relating to the securities offered therein, and the offering of such
         securities at that time shall be deemed to be the initial bona fide
         offering thereof.





                                       II-3

<PAGE>   25
                                   SIGNATURES

    Pursuant to the requirements of the Securities Act of 1933, as amended, the
registrant certifies that it has reasonable grounds to believe that it meets
all of the requirements on Form S-3 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Fullerton, State of California, on the 4th day of
April, 1996.

                                        BECKMAN INSTRUMENTS, INC.


                                        BY:  /s/ Louis T. Rosso
                                             Louis T. Rosso
                                         Chairman of the Board,
                                        Chief Executive Officer
                                              and Director

                               POWER OF ATTORNEY

         Each person whose signature appears below appoints Louis T. Rosso,
John P. Wareham, Dennis K. Wilson, William H. May, Paul Glyer and James T.
Glover, and each of them, as his or her true and lawful attorneys-in-fact and
agents with full power of substitution and resubstitution, for him or her and
in his or her name, place and stead, in any and all capacities, to sign any or
all amendments (including post-effective amendments) to this Registration
Statement or any subsequent registration statements pursuant to Rule 462
(including any amendments thereto), and to file the same, with all exhibits
thereto, and all documents in connection therewith, with the Securities and
Exchange Commission, granting unto said attorneys-in-fact and agents, and each
of them, full power and authority to do and perform each and every act and
thing requisite and necessary to be done in and about the foregoing, as fully
to all intents and purposes as he or she might or could do in person, hereby
ratifying and confirming all that said attorneys-in-fact and agents, or any of
them or their substitutes, may lawfully do or cause to be done by virtue
hereof.

         Pursuant to the requirements of the Securities Act, this Registration
Statement has been signed by the following persons in the capacities and on the
dates indicated:

<TABLE>
<CAPTION>
                  Signatures                                   Title                            Date
                  ----------                                   -----                            ----
 <S>                                           <C>                                         <C>
                                               Chairman of the Board, Chief
                                               Executive Officer and Director
 /s/ Louis T. Rosso                            (Principal Executive Officer)               April 4, 1996
 --------------------------------------------                                                           
                Louis T. Rosso

                                               President, Chief Operating
 /s/ John P. Wareham                           Officer and Director                        April 4, 1996
 --------------------------------------------                                                           
               John P. Wareham

                                               Vice President, Finance and Chief
                                               Financial Officer (Principal                April 4, 1996
 /s/ D. K. Wilson                              Financial Officer)
 --------------------------------------------                    
               Dennis K. Wilson
</TABLE>





                                        II-4

<PAGE>   26
<TABLE>
<CAPTION>
                  Signatures                                   Title                            Date
                  ----------                                   -----                            ----
 <S>                                           <C>                                         <C>
                                               Vice President and Controller          
 /s/ James T. Glover                           (Principal Accounting Officer)              April 4, 1996
 --------------------------------------------                                                           
               James T. Glover



 /s/ Earnest H. Clark, Jr.                                   Director                      April 4, 1996
 -----------------------------------------------                                                           
            Earnest H. Clark, Jr.



 /s/ Hugh K. Coble                                           Director                      April 4, 1996
 --------------------------------------------                                                           
                Hugh K. Coble



 /s/ Carolyne K. Davis                                      Director                      April 4, 1996
 --------------------------------------------------                                                           
           Carolyne K. Davis, Ph.D.



                                                             Director                      April 4, 1996
 --------------------------------------------                                                           
                Dennis C. Fill



                                                             Director                      April 4, 1996
 --------------------------------------------                                                           
             Charles A. Haggerty



 /s/ Gavin Herbert                                           Director                      April 4, 1996
 --------------------------------------------                                                           
               Gavin S. Herbert



 /s/ William N. Kelley                                       Director                      April 4, 1996
 --------------------------------------------                                                           
           William N. Kelley, M.D.



 /s/ Francis P. Lucier                                       Director                      April 4, 1996
 --------------------------------------------                                                           
              Francis P. Lucier



 /s/ C. Roderick O'Neil                                      Director                      April 4, 1996
 --------------------------------------------                                                           
              C. Roderick O'Neil
</TABLE>





                                       II-5

<PAGE>   27
<TABLE>
<CAPTION>
                  Signatures                                   Title                            Date
                  ----------                                   -----                            ----
 <S>                                                         <C>                           <C>
 /s/ Betty Woods                                             Director                      April 4, 1996
 --------------------------------------------                                                           
                 Betty Woods
</TABLE>





                                       II-6
 
<PAGE>   28
                                 EXHIBIT INDEX
<TABLE>
<CAPTION>
 Exhibit
 No.                                                   Description
 -------                                               -----------
 <S>         <C>
 1.1         Form of Underwriting Agreement for Debt Securities.
 4.1         Form of Indenture for Senior Debt Securities.
 4.2         Form of Indenture for Subordinated Debt Securities.
 4.3         Form of Senior Debt Securities (included in Exhibit 4.1).
 4.4         Form of Subordinated Debt Securities (included in Exhibit 4.2).
 5.1         Opinion of Latham & Watkins as to the validity of the Debt Securities.
 12.1        Statement re:  Computation of Ratio of Earnings to Fixed Charges.
 23.1        Consent of KPMG Peat Marwick LLP.
 23.2        Consent of Latham & Watkins (included in Exhibit 5.1).
 24.1        Power of Attorney (contained on page II-4).
 25.1        Statement of Eligibility and Qualification of Trustee on Form T-1 with respect to Senior Debt
             Securities.
 25.2        Statement of Eligibility and Qualification of Trustee on Form T-1 with respect to Subordinated
             Debt Securities.
</TABLE>





                                       II-7
 

<PAGE>   1




                                                                  EXHIBIT 1.1

                                                       Draft of April 4, 1996


                           BECKMAN INSTRUMENTS, INC.

                                DEBT SECURITIES

                               ----------------

                             UNDERWRITING AGREEMENT

                               ----------------
                                                              ____________, 1996

Goldman, Sachs & Co.,
[Names of Co-Representative(s),]
c/o Goldman, Sachs & Co.,
85 Broad Street,
New York, New York 10004.

Ladies and Gentlemen:

         From time to time Beckman Instruments, Inc., a Delaware corporation
(the "Company"), proposes to enter into one or more Pricing Agreements (each a
"Pricing Agreement") in the form of Annex I hereto, with such additions and
deletions as the parties thereto may determine, and, subject to the terms and
conditions stated herein and therein, to issue and sell to the firms named in
Schedule I to the applicable Pricing Agreement (such firms constituting the
"Underwriters" with respect to such Pricing Agreement and the securities
specified therein) certain of its debt securities (the "Securities") specified
in Schedule II to such Pricing Agreement (with respect to such Pricing
Agreement, the "Designated Securities").

         The terms and rights of any particular issuance of Designated
Securities shall be as specified in the Pricing Agreement relating thereto and
in or pursuant to the indenture (the "Indenture") identified in such Pricing
Agreement.

         1.   Particular sales of Designated Securities may be made from time
to time to the Underwriters of such Securities, for whom the firms designated
as representatives of the Underwriters of such Securities in the Pricing
Agreement relating thereto will act as representatives (the "Representatives").
The term "Representatives" also refers to a single firm acting as sole
representative of the Underwriters and to an Underwriter or Underwriters who
act without any firm being designated as its or their representatives.  This
Underwriting Agreement shall not be construed as an obligation of the Company
to sell any of the Securities or as an obligation of any of the Underwriters to
purchase the Securities.  The obligation of the Company to issue and sell any
of the Securities and the obligation of any of the Underwriters to purchase any
of the Securities shall be evidenced by the Pricing Agreement with respect to
the Designated Securities specified therein.  Each Pricing Agreement shall
specify the aggregate principal amount of such Designated Securities, the
initial public offering price of such Designated Securities, the purchase price
to the Underwriters of such Designated Securities, the names of the
Underwriters of such Designated Securities, the names of the Representatives of
such Underwriters and the principal amount of such Designated Securities
<PAGE>   2
to be purchased by each Underwriter and shall set forth the date, time and
manner of delivery of such Designated Securities and payment therefor.  The
Pricing Agreement shall also specify (to the extent not set forth in the
Indenture and the registration statement and prospectus with respect thereto)
the terms of such Designated Securities.  A Pricing Agreement shall be in the
form of an executed writing (which may be in counterparts), and may be
evidenced by an exchange of telegraphic communications or any other rapid
transmission device designed to produce a written record of communications
transmitted.  The obligations of the Underwriters under this Agreement and each
Pricing Agreement shall be several and not joint.

         2.   The Company represents and warrants to, and agrees with, each of
the Underwriters that:

              (a)  A registration statement on Form S-3 (File No. 333-________)
         in respect of the Securities has been filed with the Securities and
         Exchange Commission (the "Commission"); such registration statement
         and any post-effective amendment thereto, each in the form heretofore
         delivered or to be delivered to the Representatives and, excluding
         exhibits to such registration statement, but including all documents
         incorporated by reference in the prospectus contained therein, to the
         Representatives for each of the other Underwriters, have been declared
         effective by the Commission in such form; no other document with
         respect to such registration statement or document incorporated by
         reference therein has heretofore been filed or transmitted for filing
         with the Commission (other than prospectuses filed pursuant to Rule
         424(b) of the rules and regulations of the Commission under the
         Securities Act of 1933, as amended (the "Act"), each in the form
         heretofore delivered to the Representatives); and no stop order
         suspending the effectiveness of such registration statement has been
         issued and no proceeding for that purpose has been initiated or
         threatened by the Commission (any preliminary prospectus included in
         such registration statement or filed with the Commission pursuant to
         Rule 424(a) under the Act, is hereinafter called a "Preliminary
         Prospectus"; the various parts of such registration statement,
         including all exhibits thereto and the documents incorporated by
         reference in the prospectus contained in the registration statement at
         the time such part of the registration statement became effective but
         excluding Form T-1, each as amended at the time such part of the
         registration statement became effective, are hereinafter collectively
         called the "Registration Statement"; the prospectus relating to the
         Securities, in the form in which it has most recently been filed, or
         transmitted for filing, with the Commission on or prior to the date of
         this Agreement, being hereinafter called the "Prospectus"; any
         reference herein to any Preliminary Prospectus or the Prospectus shall
         be deemed to refer to and include the documents incorporated by
         reference therein pursuant to the applicable form under the Act, as of
         the date of such Preliminary Prospectus or Prospectus, as the case may
         be; any reference to any amendment or supplement to any Preliminary
         Prospectus or the Prospectus shall be deemed to refer to and include
         any documents filed after the date of such Preliminary Prospectus or
         Prospectus, as the case may be, under the Securities Exchange Act of
         1934, as amended (the "Exchange Act"), and incorporated by reference
         in such Preliminary Prospectus or Prospectus, as the case may be; any
         reference to any amendment to the Registration Statement shall be
         deemed to refer to and include any annual report of the Company filed
         pursuant to Sections 13(a) or 15(d) of the Exchange Act after the
         effective date of the Registration Statement that is incorporated by
         reference in the Registration



                                      2

<PAGE>   3
         Statement; and any reference to the Prospectus as amended or
         supplemented shall be deemed to refer to the Prospectus as amended or
         supplemented in relation to the applicable Designated Securities in
         the form in which it is filed with the Commission pursuant to Rule
         424(b) under the Act in accordance with Section 5(a) hereof, including
         any documents incorporated by reference therein as of the date of such
         filing);

              (b)  The documents incorporated by reference in the Prospectus,
         when they became effective or were filed with the Commission, as the
         case may be, conformed in all material respects to the requirements of
         the Act or the Exchange Act, as applicable, and the rules and
         regulations of the Commission thereunder, and none of such documents
         contained an untrue statement of a material fact or omitted to state a
         material fact required to be stated therein or necessary to make the
         statements therein not misleading; and any further documents so filed
         and incorporated by reference in the Prospectus or any further
         amendment or supplement thereto, when such documents become effective
         or are filed with the Commission, as the case may be, will conform in
         all material respects to the requirements of the Act or the Exchange
         Act, as applicable, and the rules and regulations of the Commission
         thereunder and will not contain an untrue statement of a material fact
         or omit to state a material fact required to be stated therein or
         necessary to make the statements therein not misleading; provided,
         however, that this representation and warranty shall not apply to any
         statements or omissions made in reliance upon and in conformity with
         information furnished in writing to the Company by an Underwriter of
         Designated Securities through the Representatives expressly for use in
         the Prospectus as amended or supplemented relating to such Securities;

              (c)  The Registration Statement and the Prospectus conform, and
         any further amendments or supplements to the Registration Statement or
         the Prospectus will conform, in all material respects to the
         requirements of the Act and the Trust Indenture Act of 1939, as
         amended (the "Trust Indenture Act"), and the rules and regulations of
         the Commission thereunder and do not and will not, as of the
         applicable effective date as to the Registration Statement and any
         amendment thereto and as of the applicable filing date as to the
         Prospectus and any amendment or supplement thereto, contain an untrue
         statement of a material fact or omit to state a material fact required
         to be stated therein or necessary to make the statements therein not
         misleading; provided, however, that this representation and warranty
         shall not apply to any statements or omissions made in reliance upon
         and in conformity with information furnished in writing to the Company
         by an Underwriter of Designated Securities through the Representatives
         expressly for use in the Prospectus as amended or supplemented
         relating to such Securities;

              (d)  Neither the Company nor any of its significant subsidiaries
         as such term is defined in Rule 1-02 of Regulation S-X promulgated
         pursuant to the Exchange Act (each, a "Significant Subsidiary") has
         sustained since the date of the latest audited financial statements
         included or incorporated by reference in the Prospectus any material
         loss or interference with its business from fire, explosion, flood or
         other calamity, whether or not covered by insurance, or from any labor
         dispute or court or governmental action, order or decree, otherwise
         than as set forth or contemplated in the Prospectus; and, since the
         respective dates as of which information is given in the





                                       3

<PAGE>   4
         Registration Statement and the Prospectus, there has not been any
         decrease in the capital stock in excess of $10 million or change in
         the long-term debt in excess of $20 million of the Company or any of
         its subsidiaries or any material adverse change in or affecting (or
         any event which would be reasonably likely, with the passage of time,
         to constitute a material adverse change in or to) the business,
         financial position, stockholders' equity or results of operations of
         the Company and its subsidiaries taken as a whole (a "Material Adverse
         Effect"), otherwise than as set forth or contemplated in the
         Prospectus;

              (e)  The Company has been duly incorporated and is validly
         existing as a corporation in good standing under the laws of the
         jurisdiction of its incorporation, with power and authority (corporate
         and other) to own its properties and conduct its business as described
         in the Prospectus;

              (f)  The Company has an authorized capitalization as set forth in
         the Prospectus, and all of the issued shares of capital stock of the
         Company have been duly and validly authorized and issued and are fully
         paid and non-assessable;

              (g)  The Securities have been duly authorized, and, when
         Designated Securities are issued and delivered pursuant to this
         Agreement and the Pricing Agreement with respect to such Designated
         Securities, such Designated Securities will have been duly executed,
         authenticated, issued and delivered and will constitute valid and
         legally binding obligations of the Company entitled to the benefits
         provided by the Indenture, which Indenture will be substantially in
         the form filed as an exhibit to the Registration Statement; the
         Indenture has been duly authorized and duly qualified under the Trust
         Indenture Act and, at the Time of Delivery for such Designated
         Securities (as defined in Section 4 hereof), the Indenture will
         constitute a valid and legally binding instrument, enforceable in
         accordance with its terms, subject, as to enforcement, to bankruptcy,
         insolvency, reorganization and other laws of general applicability
         relating to or affecting creditors' rights and to general equity
         principles; and the Indenture conforms, and the Designated Securities
         will conform, to the descriptions thereof contained in the Prospectus
         as amended or supplemented with respect to such Designated Securities;

              (h)  The issue and sale of the Securities and the compliance by
         the Company with all of the provisions of the Securities, the
         Indenture, this Agreement and any Pricing Agreement, and the
         consummation of the transactions herein and therein contemplated (i)
         will not conflict with or result in a breach or violation of any of
         the terms or provisions of, or constitute a default under, any
         indenture, mortgage, deed of trust, loan agreement or other agreement
         or instrument to which the Company is a party or by which the Company
         is bound or to which any of the property or assets of the Company is
         subject, (ii) will not result in any violation of the provisions of
         the Certificate of Incorporation or By-laws of the Company and (iii)
         will not result in a violation of any statute or any order, rule or
         regulation of any court or governmental agency or body having
         jurisdiction over the Company or any of its properties, except, in the
         case of clauses (i) and (iii), for such breaches or violations that
         would not, either individually or in the aggregate, have a Material
         Adverse Effect or have an adverse effect on the transactions
         contemplated by this Agreement or on the rights of holders of the
         Securities under the Indenture; and no consent, approval,
         authorization, order, registration or qualification of or with any
         such court or governmental agency or body





                                       4

<PAGE>   5
         is required for the issue and sale of the Securities or the
         consummation by the Company of the transactions contemplated by this
         Agreement or any Pricing Agreement or the Indenture, except such as
         have been, or will have been prior to the Time of Delivery, obtained
         under the Act and the Trust Indenture Act and such consents,
         approvals, authorizations, registrations or qualifications as may be
         required under state securities or Blue Sky laws in connection with
         the purchase and distribution of the Securities by the Underwriters;

              (i)  The statements set forth in the Prospects under the captions
         "Description of Debt Securities" and "Description of Notes," insofar
         as they purport to constitute a summary of the terms of the
         Securities, and under the captions "Plan of Distribution" and
         "Underwriting," insofar as they purport to describe the provisions of
         the laws and documents referred to therein, are accurate, complete and
         fair;

              (j)  Neither the Company nor any of its Significant Subsidiaries
         is in violation of its Certificate of Incorporation or By-laws or in
         default in the performance or observance of any material obligation,
         agreement, covenant or condition contained in any indenture, mortgage,
         deed of trust, loan agreement, lease or other agreement or instrument
         to which it is a party or by which it or any of its properties may be
         bound;

              (k)  Other than as set forth in the Prospectus, there are no
         legal or governmental proceedings pending to which the Company or any
         of its Significant Subsidiaries is a party or of which any property of
         the Company or any of its Significant Subsidiaries is the subject
         which, if determined adversely to the Company or any of its
         Significant Subsidiaries, would individually or in the aggregate have
         a material adverse effect on the current or future consolidated
         financial position, stockholders' equity or results of operations of
         the Company and its Significant Subsidiaries; and, to the best of the
         Company's knowledge, no such proceedings are threatened or
         contemplated by governmental authorities or threatened by others;

              (l)  The Company and its subsidiaries own or have valid, binding,
         enforceable licenses or other rights to use any patents, trademarks,
         trade names, service marks, service names, copyrights, and other
         proprietary intellectual property rights ("Intellectual Property")
         necessary to conduct the business of the Company and its subsidiaries
         in the manner in which it has been and is being conducted, without any
         conflict with the rights of others, except for such conflicts as do
         not and will not have a material adverse effect on the condition,
         financial or otherwise, results of operations, business affairs or
         business prospects of the Company and its subsidiaries, taken as a
         whole; the information contained in the Registration Statement and
         Prospectus concerning patents issued to, or patent applications filed
         on behalf of, the Company and its subsidiaries is accurate in all
         material respects; and, except as described in the Prospectus, neither
         the Company nor any of its subsidiaries has received any notice from
         any other person of infringement of or conflict with (and knows of no
         such infringement of or conflict with) asserted rights of others with
         respect to any Intellectual Property or any trade secrets, proprietary
         information, inventions, know-how, processes and procedures owned or
         used by or licensed to the Company or any of its subsidiaries, which
         if determined adversely to the Company or any of its subsidiaries
         would, individually or in the aggregate, have a Material Adverse
         Effect; and





                                       5

<PAGE>   6
              (m)  The Company is not and, after giving effect to the offering
         and sale of the Securities, will not be an "investment company" or an
         entity "controlled" by an "investment company", as such terms are
         defined in the Investment Company Act of 1940, as amended (the
         "Investment Company Act").

         3.   Upon the execution of the Pricing Agreement applicable to any
Designated Securities and authorization by the Representatives of the release
of such Designated Securities, the several Underwriters propose to offer such
Designated Securities for sale upon the terms and conditions set forth in the
Prospectus as amended or supplemented.

         4.   Designated Securities to be purchased by each Underwriter
pursuant to the Pricing Agreement relating thereto, in the form specified in
such Pricing Agreement, and in such authorized denominations and registered in
such names as the Representatives may request upon at least forty-eight hours'
prior notice to the Company, shall be delivered by or on behalf of the Company
to the Representatives for the account of such Underwriter, against payment by
such Underwriter or on its behalf of the purchase price therefor by certified
or official bank check or checks, payable to the order of the Company in the
funds specified in such Pricing Agreement, all in the manner and at the place
and time and date specified in such Pricing Agreement or at such other place
and time and date as the Representatives and the Company may agree upon in
writing, such time and date being herein called the "Time of Delivery" for such
Securities.

         5.   The Company agrees with each of the Underwriters of any
Designated Securities:

              (a)  To prepare the Prospectus as amended or supplemented in
         relation to the applicable Designated Securities in a form approved by
         the Representatives and to file such Prospectus pursuant to Rule
         424(b) under the Act not later than the Commission's close of business
         on the second business day following the execution and delivery of the
         Pricing Agreement relating to the applicable Designated Securities or,
         if applicable, such earlier time as may be required by Rule 424(b); to
         make no further amendment or any supplement to the Registration
         Statement or Prospectus as amended or supplemented after the date of
         the Pricing Agreement relating to such Securities and prior to the
         Time of Delivery for such Securities which shall be disapproved by the
         Representatives for such Securities promptly after reasonable notice
         thereof, which disapproval, if any, shall not be unreasonable; to
         advise the Representatives promptly of any such amendment or
         supplement after such Time of Delivery and furnish the Representatives
         with copies thereof; to file timely all reports and any definitive
         proxy or information statements required to be filed by the Company
         with the Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of
         the Exchange Act for so long as the delivery of a prospectus is
         required in connection with the offering or sale of such Securities,
         and during such same period to advise the Representatives, promptly
         after it receives notice thereof, of the time when any amendment to
         the Registration Statement has been filed or becomes effective or any
         supplement to the Prospectus or any amended Prospectus has been filed
         with the Commission, of the issuance by the Commission of any stop
         order or of any order preventing or suspending the use of any
         prospectus relating to the Securities, of the suspension of the
         qualification of such Securities for offering or sale in any
         jurisdiction, of the initiation or threatening of any proceeding for
         any such purpose, or of any request by the Commission for the amending
         or supplementing of the Registration





                                       6

<PAGE>   7
         Statement or Prospectus or for additional information; and, in the
         event of the issuance of any such stop order or of any such order
         preventing or suspending the use of any prospectus relating to the
         Securities or suspending any such qualification, to promptly use its
         best efforts to obtain the withdrawal of such order;

              (b)  Promptly from time to time to take such action as the
         Representatives may reasonably request to qualify such Securities for
         offering and sale under the securities laws of such jurisdictions as
         the Representatives may reasonably request and to comply with such
         laws so as to permit the continuance of sales and dealings therein in
         such jurisdictions for as long as may be reasonably necessary to
         complete the distribution of such Securities, provided that in
         connection therewith the Company shall not be required to qualify as a
         foreign corporation or to file a general consent to service of process
         in any jurisdiction;

              (c)  Prior to 10:00 a.m., New York City time, on the New York
         Business Day next succeeding the date of the Pricing Agreement for
         such Designated Securities and from time to time to furnish the
         Underwriters with copies of the Prospectus in New York City as amended
         or supplemented in such quantities as the Representatives may
         reasonably request, and, if the delivery of a prospectus is required
         at any time in connection with the offering or sale of the Securities
         and if at such time any event shall have occurred as a result of which
         the Prospectus as then amended or supplemented would include an untrue
         statement of a material fact or omit to state any material fact
         necessary in order to make the statements therein, in the light of the
         circumstances under which they were made when such Prospectus is
         delivered, not misleading, or, if for any other reason it shall be
         necessary during such same period to amend or supplement the
         Prospectus or to file under the Exchange Act any document incorporated
         by reference in the Prospectus in order to comply with the Act, the
         Exchange Act or the Trust Indenture Act, to notify the Representatives
         and upon their request to file such document and to prepare and
         furnish without charge to each Underwriter and to any dealer in
         securities as many copies as the Representatives may from time to time
         reasonably request of an amended Prospectus or a supplement to the
         Prospectus which will correct such statement or omission or effect
         such compliance;

              (d)  To make generally available to its securityholders as soon
         as practicable, but in any event not later than eighteen months after
         the effective date of the Registration Statement (as defined in Rule
         158(c) under the Act), a consolidated earnings statement (which need
         not be audited) complying with Section 11(a) of the Act and the rules
         and regulations of the Commission thereunder (including, at the option
         of the Company, Rule 158); and

              (e)  During the period beginning from the date of the Pricing
         Agreement for such Designated Securities and continuing to and
         including the later of (i) the termination of trading restrictions for
         such Designated Securities, as notified to the Company by the
         Representatives and (ii) the Time of Delivery for such Designated
         Securities, not to offer, sell, contract to sell or otherwise dispose
         of any debt securities of the Company which mature more than one year
         after such Time of Delivery and which are substantially similar to
         such Designated Securities, without the prior written consent of the
         Representatives.





                                       7

<PAGE>   8
         6.   The Company covenants and agrees with the several Underwriters
that the Company will pay or cause to be paid the following: (i) the fees,
disbursements and expenses of the Company's counsel and accountants in
connection with the registration of the Securities under the Act and all other
expenses in connection with the preparation, printing and filing of the
Registration Statement, any Preliminary Prospectus and the Prospectus and
amendments and supplements thereto and the mailing and delivering of copies
thereof to the Underwriters and dealers; (ii) the cost of printing or producing
any Agreement among Underwriters, this Agreement, any Pricing Agreement, any
Indenture, any Blue Sky and Legal Investment Memoranda, closing documents
(including any compilations thereof) and any other documents in connection with
the offering, purchase, sale and delivery of the Securities; (iii) all expenses
in connection with the qualification of the Securities for offering and sale
under state securities laws as provided in Section 5(b) hereof, including the
fees and disbursements of counsel for the Underwriters in connection with such
qualification and in connection with the Blue Sky and Legal Investment Surveys;
(iv) any fees charged by securities rating services for rating the Securities;
(v) any filing fees incident to, and the fees and disbursements of counsel for
the Underwriters in connection with, any required review by the National
Association of Securities Dealers, Inc. of the terms of the sale of the
Securities; (vi) the cost of preparing the Securities; (vii) the fees and
expenses of any Trustee and any agent of any Trustee and the fees and
disbursements of counsel for any Trustee in connection with any Indenture and
the Securities; and (viii) all other costs and expenses incident to the
performance of its obligations hereunder which are not otherwise specifically
provided for in this Section.  It is understood, however, that, except as
provided in this Section, and Sections 8 and 11 hereof, the Underwriters will
pay all of their own costs and expenses, including the fees of their counsel,
transfer taxes on resale of any of the Securities by them, and any advertising
expenses connected with any offers they may make.

         7.   The obligations of the Underwriters of any Designated Securities
under the Pricing Agreement relating to such Designated Securities shall be
subject, in the discretion of the Representatives, to the condition that all
representations and warranties and other statements of the Company in or
incorporated by reference in the Pricing Agreement relating to such Designated
Securities are, at and as of the Time of Delivery for such Designated
Securities, true and correct, the condition that the Company shall have
performed all of its obligations hereunder theretofore to be performed, and the
following additional conditions:

              (a)  The Prospectus as amended or supplemented in relation to the
         applicable Designated Securities shall have been filed with the
         Commission pursuant to Rule 424(b) within the applicable time period
         prescribed for such filing by the rules and regulations under the Act
         and in accordance with Section 5(a) hereof; no stop order suspending
         the effectiveness of the Registration Statement or any part thereof
         shall have been issued and no proceeding for that purpose shall have
         been initiated or, to the best knowledge of the Company, threatened by
         the Commission; and all requests for additional information on the
         part of the Commission shall have been complied with to the
         Representatives' reasonable satisfaction;

              (b)  Counsel for the Underwriters shall have furnished to the
         Representatives such opinion or opinions (a draft of each such opinion
         is attached as Annex III(a) hereto), dated the Time of Delivery for
         such Designated Securities, with respect to the matters covered in
         paragraphs (i), (ii), (iv), (v), (vi), (x), (xi), (xii) and (xiii) of
         subsection (c) below as well as such other related matters as the
         Representatives may reasonably





                                       8

<PAGE>   9
         request, and such counsel shall have received such papers and
         information as they may reasonably request to enable them to pass upon
         such matters;

              (c)  Latham & Watkins, counsel for the Company, shall have
         furnished to the Representatives their written opinion (a draft of
         each such opinion is attached as Annex III(b) hereto), dated the Time
         of Delivery for such Designated Securities, in form and substance
         satisfactory to the Representatives, to the effect that:

                   (i)  The Company has been duly incorporated and is validly
              existing and in good standing under the laws of the State of
              Delaware with corporate power and authority to own, lease and
              operate its properties and to conduct its business as described
              in the Registration Statement and the Prospectus.

                  (ii)  The Indenture dated as of ___________, 1996 (the
              "Indenture") between the Company and The First National Bank of
              Chicago, N.A., as Trustee (the "Trustee") has been duly
              authorized, executed and delivered by the Company and (assuming
              due authorization, execution and delivery by the Trustee) is the
              legally valid and binding agreement of the Company, enforceable
              against the Company in accordance with its terms.

                 (iii)  The Designated Securities have been duly authorized,
              executed, authenticated and delivered in accordance with the
              terms of the Indenture and are legally valid and binding
              obligations of the Company, enforceable against the Company in
              accordance with their terms.

                  (iv)  The Indenture has been duly qualified under the Trust
              Indenture Act.

                   (v)  Each of the Underwriting Agreement and the Pricing
              Agreement with respect to the Designated Securities has been duly
              authorized, executed and delivered by the Company.

                  (vi)  The issuance and sale of the Designated Securities by
              the Company pursuant to the Underwriting Agreement and the
              Pricing Agreement with respect to such Designated Securities and
              the compliance with all of the provisions of the Designated
              Securities, the Indenture, this Agreement and the Pricing
              Agreement with respect to the Designated Securities, will not
              result in the violation by the Company of its Certificate of
              Incorporation or Bylaws or any federal, California or New York
              statute, rule or regulation known to such counsel to be
              applicable to the Company (other than federal or state securities
              laws, which are specifically addressed elsewhere therein); and,
              to the best of such counsel's knowledge, no consent, approval,
              authorization, registration, qualification or order of, or filing
              with, any federal, California or New York court or governmental
              agency or body is required for the consummation of the issuance
              and sale of the Designated Securities by the Company pursuant to
              the Underwriting Agreement and the Pricing Agreement with respect
              to such Designated Securities or the Indenture, except such as
              have been obtained under the Act and such as may be required
              under state securities laws in connection with the purchase and
              distribution of such Designated Securities by the Underwriters.

                 (vii)  The Company is not an "investment company" as such term
              is defined in the Investment Company Act.





                                       9

<PAGE>   10
                (viii)  The Registration Statement has become effective under
              the Act and, to the best of such counsel's knowledge, no stop
              order suspending the effectiveness of the Registration Statement
              has been issued under the Act and no proceedings therefor have
              been initiated by the Commission.

                  (ix)  The Registration Statement and the Prospectus comply as
              to form in all material respects with the requirements for
              registration statements on From S-3 under the Act, the Trust
              Indenture Act and the rules and regulations of the Commission
              thereunder; it being understood, however, that such counsel need
              express no opinion with respect to the financial statements,
              schedules and other financial data included in the Registration
              Statement or the Prospectus or with respect to the Form T-1.  In
              passing upon the compliance as to form of the Registration
              Statement and the Prospectus, such counsel may assume that the
              statements made and incorporated by reference therein are correct
              and complete.

                   (x)  The statements set forth in the Prospectus under the
              headings "Description of Debt Securities," "Plan of
              Distribution," "Taxation," "Underwriting" and "Description of
              Notes," insofar as such statements constitute a summary of the
              terms of the Designated Securities or legal matters or documents
              are accurate and complete in all material respects.

         In addition, such counsel shall state that it has participated in
conferences with officers and other representatives of the Company,
representatives of the independent public accountants for the Company and
representatives of the Underwriters, at which the contents of the Registration
Statement and the Prospectus and related matters were discussed and, although
such counsel need not pass upon, and need not assume any responsibility for,
the accuracy, completeness or fairness of the statements contained in the
Registration Statement and the Prospectus (except for those referred to in the
opinion in subsection (ix) of this Section 7(c)) and need not make any
independent check or verification thereof, during the course of such
participation (relying as to materiality to a certain extent upon the
statements of officers and other representatives of the Company), no facts came
to such counsel's attention that caused such counsel to believe that the
Registration Statement, at the time it became effective, contained an untrue
statement of a material fact or omitted to state a material fact required to be
stated therein or necessary to make the statement therein not misleading, or
that the Prospectus, as of its date, contained an untrue statement of a
material fact or omitted to state a material fact necessary to make the
statements therein, in light of the circumstances under which they were made,
not misleading; it being understood that such counsel need express no belief
with respect to the financial statements, schedules and other financial data
included in the Registration Statement or the Prospectus or incorporated
therein or with respect to the Form T-1.

         Such counsel shall also be permitted to state that the opinions
rendered in paragraphs (ii) and (iii) relating to the enforceability of the
Indenture and the Designated Securities, respectively, are subject to the
following exceptions, limitations and qualifications: (i) the effect of
bankruptcy, insolvency, reorganization, moratorium or other similar laws now or
hereafter in effect relating to or affecting the rights and remedies of
creditors; (ii) the effect of general principles of equity, whether enforcement
is considered in a proceeding in equity or law, and the discretion of the court
before which any proceeding therefor may be brought; (iii) the unenforceability
under certain circumstances under law or court decisions of provisions





                                       10

<PAGE>   11
providing for the indemnification of or contribution to a party with respect to
a liability where such indemnification or contribution is contrary to public
policy; (iv) such counsel need express no opinion concerning the enforceability
of the waiver of rights or defenses contained in the Indenture; and (v) the
manner by which the acceleration of the Designated Securities may affect the
collectibility of that portion of the stated principal amount thereof which
might be determined to constitute unearned interest thereon.

              (d)  William H. May, General Counsel for the Company, shall have
         furnished to the Representatives his written opinion (a draft of each
         such opinion is attached as Annex III(c) hereto), dated the Time of
         Delivery for such Designated Securities, in form and substance
         satisfactory to the Representatives, to the effect that:

                   (i)  The Company has been duly incorporated and is validly
              existing and in good standing under the laws of the State of
              Delaware with corporate power and authority to own, lease and
              operate its properties and to conduct its business as described
              in the Registration Statement and the Prospectus.

                  (ii)  The Company has an authorized capitalization as set
              forth in the Prospectus and all of the issued shares of capital
              stock of the Company have been duly and validly authorized and
              issued and are fully paid and non-assessable.

                 (iii)  To the best of such counsel's knowledge, other than as
              set forth in the Prospectus, there are no legal or governmental
              proceedings pending to which the Company or any of its
              Significant Subsidiaries is a party or of which any property of
              the Company or any of its Significant Subsidiaries is subject,
              except for those proceedings which, either individually or in the
              aggregate, would not have a Material Adverse Effect.

                  (iv)  The issuance and sale of the Designated Securities by
              the Company pursuant to the Underwriting Agreement and the
              Pricing Agreement with respect to such Designated Securities and
              the compliance with all of the provisions of the Designated
              Securities, the Indenture, this Agreement and the Pricing
              Agreement with respect to the Designated Securities, will not
              conflict with or result in the violation by the Company of any of
              the terms or provisions of or constitute a default under, any
              indenture, mortgage, deed of trust, loan agreement or other
              agreement or instrument known to such counsel to which the
              Company is a party or by which the Company is bound or to which
              any of the property or assets of the Company is subject, except
              for those breaches or violations which, either individually or in
              the aggregate, would not have a Material Adverse Effect.

                   (v)  The Company is not an "investment company" or, to the
              best of such counsel's knowledge, an entity "controlled" by an
              "investment company", as such terms are defined in the Investment
              Company Act.

                  (vi)  The documents incorporated by reference in the
              Prospectus (other than the financial statements, schedules and
              other financial data as to which such counsel need express no
              opinion), when they became effective or were filed with the
              Commission, as the case may be, complied as to form in all
              material respects with the requirements of the Act or the
              Exchange Act, as applicable, and the rules and regulations of the
              Commission thereunder.





                                       11

<PAGE>   12
                 (vii)  To the best of such counsel's knowledge, there are no
              contracts or documents of a character required to be described in
              the Registration Statement or Prospectus (or required to be filed
              under the Exchange Act, if upon such filing they would be
              incorporated by reference therein) or to be filed as exhibits to
              the Registration Statement that are not described and filed as
              required.

         In addition, such counsel shall state that he has participated in
conferences with officers and other representatives of the Company,
representatives of the independent public accountants for the Company and
representatives of the Underwriters, at which the contents of the Registration
Statement and the Prospectus and related matters were discussed and, although
such counsel need not pass upon, and need not assume any responsibility for,
the accuracy, completeness or fairness of the statements contained in the
Registration Statement and the Prospectus and need not make any independent
check or verification thereof, during the course of such participation (relying
as to materiality to a certain extent upon the statements of officers and other
representatives of the Company), no facts came to such counsel's attention that
caused such counsel to believe that the Registration Statement, at the time it
became effective, contained an untrue statement of a material fact or omitted
to state a material fact required to be stated therein or necessary to make the
statement therein not misleading; such counsel shall also state that he has no
reason to believe that any of the documents incorporated by reference in the
Prospectus, when they became effective or were so filed, as the case may be,
contained, in the case of a registration statement which became effective under
the Act, an untrue statement of a material fact or omitted to state a material
fact required to be stated therein or necessary to make the statements therein
not misleading, or in the case of other documents which were filed under the
Act or the Exchange Act with the Commission, an untrue statement of a material
fact or omitted to state a material fact necessary to make the statements
therein, in light of the circumstances under which they were made when such
documents were so filed, not misleading; it being understood that such counsel
need express no belief with respect to the financial statements, schedules and
other financial data included in the Registration Statement or the Prospectus
or incorporated therein by reference or with respect to the Form T-1.

              (e)  On the date of the Pricing Agreement for such Designated
         Securities at a time prior to the execution of the Pricing Agreement
         with respect to such Designated Securities and at the Time of Delivery
         for such Designated Securities, the independent accountants of the
         Company who have certified the consolidated financial statements
         included or incorporated by reference in the Registration Statement
         shall have furnished to the Representatives a letter, dated the
         effective date of the Registration Statement or the date of the most
         recent report filed with the Commission containing financial
         statements and incorporated by reference in the Registration
         Statement, if the date of such report is later than such effective
         date, and a letter dated such Time of Delivery, respectively, to the
         effect set forth in Annex II hereto, and with respect to such letter
         dated such Time of Delivery, as to such other matters as the
         Representatives may reasonably request and in form and substance
         satisfactory to the Representatives (the executed copy of the letter
         delivered prior to the execution of the Pricing Agreement relating to
         such Designated Securities is attached as Annex II(a) hereto and a
         draft of the form of letter to be delivered on the effective date of
         any post-effective amendment to the Registration Statement and as of
         each Time of Delivery is attached hereto as Annex II(b) hereto);





                                       12

<PAGE>   13
              (f)  (i) Neither the Company nor any of its subsidiaries shall
         have sustained since the date of the latest audited financial
         statements included or incorporated by reference in the Prospectus as
         amended prior to the date of the Pricing Agreement relating to the
         Designated Securities any loss or interference with its business from
         fire, explosion, flood or other calamity, whether or not covered by
         insurance, or from any labor dispute or court or governmental action,
         order or decree, otherwise than as set forth or contemplated in the
         Prospectus as amended prior to the date of the Pricing Agreement
         relating to the Designated Securities, and (ii) since the respective
         dates as of which information is given in the Prospectus as amended
         prior to the date of the Pricing Agreement relating to the Designated
         Securities there shall not have been any decrease in the capital stock
         in excess of $10 million or change in the long-term debt in
         excess of $20 million of the Company or any of its subsidiaries or
         any change in or affecting (or any event which would, with the passage
         of time, constitute a change in or to) the business, financial
         position, stockholders' equity or results of operations of the Company
         and its subsidiaries, otherwise than as set forth or contemplated in
         the Prospectus as amended prior to the date of the Pricing Agreement
         relating to the Designated Securities, the effect of which, in any
         such case described in Clause (i) or (ii), is in the judgment of the
         Representatives so material and adverse as to make it impracticable or
         inadvisable to proceed with the public offering or the delivery of the
         Designated Securities on the terms and in the manner contemplated in
         the Prospectus as first amended or supplemented relating to the
         Designated Securities;

              (g)  On or after the date of the Pricing Agreement relating to
         the Designated Securities (i) no downgrading shall have occurred in
         the rating accorded the Company's debt securities or preferred stock
         by any "nationally recognized statistical rating organization", as
         that term is defined by the Commission for purposes of Rule 436(g)(2)
         under the Act, and (ii) no such organization shall have publicly
         announced that it has under surveillance or review, with possible
         negative implications, its rating of any of the Company's debt
         securities or preferred stock;

              (h)  On or after the date of the Pricing Agreement relating to
         the Designated Securities there shall not have occurred any of the
         following: (i) a suspension or material limitation in trading in
         securities generally on the New York Stock Exchange; (ii) a suspension
         or material limitation in trading in the Company's securities on the
         New York Stock Exchange; (iii) a general moratorium on commercial
         banking activities declared by either Federal or New York or
         California State authorities; or (iv) the outbreak or escalation of
         hostilities involving the United States or the declaration by the
         United States of a national emergency or war, if the effect of any
         such event specified in this Clause (iv) in the judgment of the
         Representatives makes it impracticable or inadvisable to proceed with
         the public offering or the delivery of the Designated Securities on
         the terms and in the manner contemplated in the Prospectus as first
         amended or supplemented relating to the Designated Securities;

              (i)  The Company shall have complied with the provisions of
         Section 5(c) hereof with respect to the furnishing of prospectuses on
         the New York Business Day next succeeding the date of the Pricing
         Agreement relating to such Designated Securities; and





                                       13

<PAGE>   14
              (j)  The Company shall have furnished or caused to be furnished
         to the Representatives at the Time of Delivery for the Designated
         Securities a certificate or certificates of officers of the Company
         satisfactory to the Representatives as to the accuracy of the
         representations and warranties of the Company herein at and as of such
         Time of Delivery, as to the performance by the Company of all of its
         obligations hereunder to be performed at or prior to such Time of
         Delivery, as to the matters set forth in subsections (a) and (e) of
         this Section and as to such other matters as the Representatives may
         reasonably request.

         8.   (a)  The Company will indemnify and hold harmless each
Underwriter against any losses, claims, damages or liabilities, joint or
several, to which such Underwriter may become subject, under the Act or
otherwise, insofar as such losses, claims, damages or liabilities (or actions
in respect thereof) arise out of or are based upon an untrue statement or
alleged untrue statement of a material fact contained in any Preliminary
Prospectus, any preliminary prospectus supplement, the Registration Statement,
the Prospectus as amended or supplemented and any other prospectus relating to
the Securities, or any amendment or supplement thereto, or arise out of or are
based upon the omission or alleged omission to state therein a material fact
required to be stated therein or necessary to make the statements therein not
misleading, and will reimburse each Underwriter for any legal or other expenses
reasonably incurred by such Underwriter in connection with investigating or
defending any such action or claim as such expenses are incurred; provided,
however, that the Company shall not be liable in any such case to the extent
that any such loss, claim, damage or liability arises out of or is based upon
an untrue statement or alleged untrue statement or omission or alleged omission
made in any Preliminary Prospectus, any preliminary prospectus supplement, the
Registration Statement, the Prospectus as amended or supplemented and any other
prospectus relating to the Securities, or any such amendment or supplement in
reliance upon and in conformity with written information furnished to the
Company by any Underwriter of Designated Securities through the Representatives
expressly for use in the Prospectus as amended or supplemented relating to such
Securities.

         (b)  Each Underwriter will indemnify and hold harmless the Company
against any losses, claims, damages or liabilities to which the Company may
become subject, under the Act or otherwise, insofar as such losses, claims,
damages or liabilities (or actions in respect thereof) arise out of or are
based upon an untrue statement or alleged untrue statement of a material fact
contained in any Preliminary Prospectus, any preliminary prospectus supplement,
the Registration Statement, the Prospectus as amended or supplemented and any
other prospectus relating to the Securities, or any amendment or supplement
thereto, or arise out of or are based upon the omission or alleged omission to
state therein a material fact required to be stated therein or necessary to
make the statements therein not misleading, in each case to the extent, but
only to the extent, that such untrue statement or alleged untrue statement or
omission or alleged omission was made in any Preliminary Prospectus, any
preliminary prospectus supplement, the Registration Statement, the Prospectus
as amended or supplemented and any other prospectus relating to the Securities,
or any such amendment or supplement in reliance upon and in conformity with
written information furnished to the Company by such Underwriter through the
Representatives expressly for use therein; and will reimburse the Company for
any legal or other expenses reasonably incurred by the Company in connection
with investigating or defending any such action or claim as such expenses are
incurred.





                                       14

<PAGE>   15
         (c)  Promptly after receipt by an indemnified party under subsection
(a) or (b) above of notice of the commencement of any action, such indemnified
party shall, if a claim in respect thereof is to be made against the
indemnifying party under such subsection, notify the indemnifying party in
writing of the commencement thereof; but the omission so to notify the
indemnifying party shall not relieve it from any liability which it may have to
any indemnified party other than under such subsection (a) or (b) above.  In
case any such action shall be brought against any indemnified party and it
shall notify the indemnifying party of the commencement thereof, the
indemnifying party shall be entitled to participate therein and, to the extent
that it shall wish, jointly with any other indemnifying party similarly
notified, to assume the defense thereof, with counsel satisfactory to such
indemnified party (who shall not, except with the consent of the indemnified
party, be counsel to the indemnifying party), and, after notice from the
indemnifying party to such indemnified party of its election so to assume the
defense thereof, the indemnifying party shall not be liable to such indemnified
party under such subsection for any legal expenses of other counsel or any
other expenses, in each case subsequently incurred by such indemnified party,
in connection with the defense thereof other than reasonable costs of
investigation.  No indemnifying party shall, without the written consent of the
indemnified party, effect the settlement or compromise of, or consent to the
entry of any judgment with respect to, any pending or threatened action or
claim in respect of which indemnification or contribution may be sought
hereunder (whether or not the indemnified party is an actual or potential party
to such action or claim) unless such settlement, compromise or judgment (i)
includes an unconditional release of the indemnified party from all liability
arising out of such action or claim and (ii) does not include a statement as to
or an admission of fault, culpability or a failure to act, by or on behalf of
any indemnified party.

         (d)  If the indemnification provided for in this Section 8 is
unavailable to or insufficient to hold harmless an indemnified party under
subsection (a) or (b) above in respect of any losses, claims, damages or
liabilities (or actions in respect thereof) referred to therein, then each
indemnifying party shall contribute to the amount paid or payable by such
indemnified party as a result of such losses, claims, damages or liabilities
(or actions in respect thereof) in such proportion as is appropriate to reflect
the relative benefits received by the Company on the one hand and the
Underwriters of the Designated Securities on the other from the offering of the
Designated Securities to which such loss, claim, damage or liability (or action
in respect thereof) relates.  If, however, the allocation provided by the
immediately preceding sentence is not permitted by applicable law or if the
indemnified party failed to give the notice required under subsection (c)
above, then each indemnifying party shall contribute to such amount paid or
payable by such indemnified party in such proportion as is appropriate to
reflect not only such relative benefits but also the relative fault of the
Company on the one hand and the Underwriters of the Designated Securities on
the other in connection with the statements or omissions which resulted in such
losses, claims, damages or liabilities (or actions in respect thereof), as well
as any other relevant equitable considerations.  The relative benefits received
by the Company on the one hand and such Underwriters on the other shall be
deemed to be in the same proportion as the total net proceeds from such
offering (before deducting expenses) received by the Company bear to the total
underwriting discounts and commissions received by such Underwriters.  The
relative fault shall be determined by reference to, among other things, whether
the untrue or alleged untrue statement of a material fact or the omission or
alleged omission to state a material fact relates to information supplied





                                       15

<PAGE>   16
by the Company on the one hand or such Underwriters on the other and the
parties' relative intent, knowledge, access to information and opportunity to
correct or prevent such statement or omission.  The Company and the
Underwriters agree that it would not be just and equitable if contribution
pursuant to this subsection (d) were determined by pro rata allocation (even if
the Underwriters were treated as one entity for such purpose) or by any other
method of allocation which does not take account of the equitable
considerations referred to above in this subsection (d).  The amount paid or
payable by an indemnified party as a result of the losses, claims, damages or
liabilities (or actions in respect thereof) referred to above in this
subsection (d) shall be deemed to include any legal or other expenses
reasonably incurred by such indemnified party in connection with investigating
or defending any such action or claim. Notwithstanding the provisions of this
subsection (d), no Underwriter shall be required to contribute any amount in
excess of the amount by which the total price at which the applicable
Designated Securities underwritten by it and distributed to the public were
offered to the public exceeds the amount of any damages which such Underwriter
has otherwise been required to pay by reason of such untrue or alleged untrue
statement or omission or alleged omission.  No person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Act) shall be
entitled to contribution from any person who was not guilty of such fraudulent
misrepresentation.  The obligations of the Underwriters of Designated
Securities in this subsection (d) to contribute are several in proportion to
their respective underwriting obligations with respect to such Securities and
not joint.

         (e)  The obligations of the Company under this Section 8 shall be in
addition to any liability which the Company may otherwise have and shall
extend, upon the same terms and conditions, to each person, if any, who
controls any Underwriter within the meaning of the Act; and the obligations of
the Underwriters under this Section 8 shall be in addition to any liability
which the respective Underwriters may otherwise have and shall extend, upon the
same terms and conditions, to each officer and director of the Company and to
each person, if any, who controls the Company within the meaning of the Act.

         9.   (a)  If any Underwriter shall default in its obligation to
purchase the Designated Securities which it has agreed to purchase under the
Pricing Agreement relating to such Designated Securities, the Representatives
may in their discretion arrange for themselves or another party or other
parties to purchase such Designated Securities on the terms contained herein.
If within thirty-six hours after such default by any Underwriter the
Representatives do not arrange for the purchase of such Designated Securities,
then the Company shall be entitled to a further period of thirty-six hours
within which to procure another party or other parties satisfactory to the
Representatives to purchase such Designated Securities on such terms.  In the
event that, within the respective prescribed period, the Representatives notify
the Company that they have so arranged for the purchase of such Designated
Securities, or the Company notifies the Representatives that it has so arranged
for the purchase of such Designated Securities, the Representatives or the
Company shall have the right to postpone the Time of Delivery for such
Designated Securities for a period of not more than seven days, in order to
effect whatever changes may thereby be made necessary in the Registration
Statement or the Prospectus as amended or supplemented, or in any other
documents or arrangements, and the Company agrees to file promptly any
amendments or supplements to the Registration Statement or the Prospectus which
in the opinion of the Representatives may thereby be made necessary.  The term
"Underwriter" as used in this Agreement shall include





                                       16

<PAGE>   17
any person substituted under this Section with like effect as if such person
had originally been a party to the Pricing Agreement with respect to such
Designated Securities.

         (b)  If, after giving effect to any arrangements for the purchase of
the Designated Securities of a defaulting Underwriter or Underwriters by the
Representatives and the Company as provided in subsection (a) above, the
aggregate principal amount of such Designated Securities which remains
unpurchased does not exceed one-eleventh of the aggregate principal amount of
the Designated Securities, then the Company shall have the right to require
each non-defaulting Underwriter to purchase the principal amount of Designated
Securities which such Underwriter agreed to purchase under the Pricing
Agreement relating to such Designated Securities and, in addition, to require
each non-defaulting Underwriter to purchase its pro rata share (based on the
principal amount of Designated Securities which such Underwriter agreed to
purchase under such Pricing Agreement) of the Designated Securities of such
defaulting Underwriter or Underwriters for which such arrangements have not
been made; but nothing herein shall relieve a defaulting Underwriter from
liability for its default.

         (c)  If, after giving effect to any arrangements for the purchase of
the Designated Securities of a defaulting Underwriter or Underwriters by the
Representatives and the Company as provided in subsection (a) above, the
aggregate principal amount of Designated Securities which remains unpurchased
exceeds one-eleventh of the aggregate principal amount of the Designated
Securities, as referred to in subsection (b) above, or if the Company shall not
exercise the right described in subsection (b) above to require non-defaulting
Underwriters to purchase Designated Securities of a defaulting Underwriter or
Underwriters, then the Pricing Agreement relating to such Designated Securities
shall thereupon terminate, without liability on the part of any non-defaulting
Underwriter or the Company, except for the expenses to be borne by the Company
and the Underwriters as provided in Section 6 hereof and the indemnity and
contribution agreements in Section 8 hereof; but nothing herein shall relieve a
defaulting Underwriter from liability for its default.

         10.  The respective indemnities, agreements, representations,
warranties and other statements of the Company and the several Underwriters, as
set forth in this Agreement or made by or on behalf of them, respectively,
pursuant to this Agreement, shall remain in full force and effect, regardless
of any investigation (or any statement as to the results thereof) made by or on
behalf of any Underwriter or any controlling person of any Underwriter, or the
Company, or any officer or director or controlling person of the Company, and
shall survive delivery of and payment for the Securities.

         11.  If any Pricing Agreement shall be terminated pursuant to Section
9 hereof, the Company shall not then be under any liability to any Underwriter
with respect to the Designated Securities covered by such Pricing Agreement
except as provided in Sections 6 and 8 hereof; but, if for any other reason
Designated Securities are not delivered by or on behalf of the Company as
provided herein, the Company will reimburse the Underwriters through the
Representatives for all reasonable out-of-pocket expenses approved in writing
by the Representatives, including reasonable fees and disbursements of counsel,
reasonably incurred by the Underwriters in making preparations for the
purchase, sale and delivery of such Designated Securities, but the Company
shall then be under no further liability to any Underwriter with respect to
such Designated Securities except as provided in Sections 6 and 8 hereof.





                                       17

<PAGE>   18
         12.  In all dealings hereunder, the Representatives of the
Underwriters of Designated Securities shall act on behalf of each of such
Underwriters, and the parties hereto shall be entitled to act and rely upon any
statement, request, notice or agreement on behalf of any Underwriter made or
given by such Representatives jointly or by such of the Representatives, if
any, as may be designated for such purpose in the Pricing Agreement.

              All statements, requests, notices and agreements hereunder shall
be in writing, and if to the Underwriters shall be delivered or sent by mail,
telex or facsimile transmission to the address of the Representatives as set
forth in the Pricing Agreement; and if to the Company shall be delivered or
sent by mail, telex or facsimile transmission to the address of the Company set
forth in the Registration Statement: Attention: Secretary; provided, however,
that any notice to an Underwriter pursuant to Section 8(c) hereof shall be
delivered or sent by mail, telex or facsimile transmission to such Underwriter
at its address set forth in its Underwriters' Questionnaire, or telex
constituting such Questionnaire, which address will be supplied to the Company
by the Representatives upon request.  Any such statements, requests, notices or
agreements shall take effect upon receipt thereof.

         13.  This Agreement and each Pricing Agreement shall be binding upon,
and inure solely to the benefit of, the Underwriters, the Company and, to the
extent provided in Sections 8 and 10 hereof, the officers and directors of the
Company and each person who controls the Company or any Underwriter, and their
respective heirs, executors, administrators, successors and assigns, and no
other person shall acquire or have any right under or by virtue of this
Agreement or any such Pricing Agreement.  No purchaser of any of the Securities
from any Underwriter shall be deemed a successor or assign by reason merely of
such purchase.

         14.  Time shall be of the essence of each Pricing Agreement.  As used
herein, "business day" shall mean any day when the Commission's office in
Washington, D.C.  is open for business.

         15.  THIS AGREEMENT AND EACH PRICING AGREEMENT SHALL BE GOVERNED BY
AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

         16.  This Agreement and each Pricing Agreement may be executed by any
one or more of the parties hereto and thereto in any number of counterparts,
each of which shall be deemed to be an original, but all such respective
counterparts shall together constitute one and the same instrument.





                                       18

<PAGE>   19
         If the foregoing is in accordance with your understanding, please sign
and return to us ________ counterparts hereof.

                                                Very truly yours,          
                                                                           
                                                Beckman Instruments, Inc.  
                                                                           
                                                By:_______________________ 
                                                   Name:                   
                                                   Title:                  

Accepted as of the date hereof:

[Goldman, Sachs & Co.
[Name(s) of Co-Representative(s)]]

By: . . . . . . . . . . . . . . . . . . . . . . . . .
               (Goldman, Sachs & Co.)





                                       19

<PAGE>   20
                                                         Draft of March 14, 1996

                                                                         ANNEX I

                               Pricing Agreement

Goldman, Sachs & Co.,
[Names of Co-Representative(s),]
  As Representatives of the several
   Underwriters named in Schedule I hereto,
c/o Goldman, Sachs & Co.,
[85 Broad Street,
New York, New York 10004.]

                                                              ____________, 1996

Ladies and Gentlemen:

         Beckman Instruments, Inc., a Delaware corporation (the "Company"),
proposes, subject to the terms and conditions stated herein and in the
Underwriting Agreement, dated ____________, 1996 (the "Underwriting
Agreement"), between the Company on the one hand and Goldman, Sachs & Co. [and
(names of Co-Representatives named therein)] on the other hand, to issue and
sell to the Underwriters named in Schedule I hereto (the "Underwriters") the
Securities specified in Schedule II hereto (the "Designated Securities").  Each
of the provisions of the Underwriting Agreement is incorporated herein by
reference in its entirety, and shall be deemed to be a part of this Agreement
to the same extent as if such provisions had been set forth in full herein; and
each of the representations and warranties set forth therein shall be deemed to
have been made at and as of the date of this Pricing Agreement, except that
each representation and warranty which refers to the Prospectus in Section 2 of
the Underwriting Agreement shall be deemed to be a representation or warranty
as of the date of the Underwriting Agreement in relation to the Prospectus (as
therein defined), and also a representation and warranty as of the date of this
Pricing Agreement in relation to the Prospectus as amended or supplemented
relating to the Designated Securities which are the subject of this Pricing
Agreement.  Each reference to the Representatives herein and in the provisions
of the Underwriting Agreement so incorporated by reference shall be deemed to
refer to you.  Unless otherwise defined herein, terms defined in the
Underwriting Agreement are used herein as therein defined.  The Representatives
designated to act on behalf of the Representatives and on behalf of each of the
Underwriters of the Designated Securities pursuant to Section 12 of the
Underwriting Agreement and the address of the Representatives referred to in
such Section 12 are set forth at the end of Schedule II hereto.

         An amendment to the Registration Statement, or a supplement to the
Prospectus, as the case may be, relating to the Designated Securities, in the
form heretofore delivered to you is now proposed to be filed with the
Commission.

         Subject to the terms and conditions set forth herein and in the
Underwriting Agreement incorporated herein by reference, the Company agrees to
issue and sell to each of the Underwriters, and each of the Underwriters
agrees, severally and not jointly, to purchase from the Company, at the time
and place and at the purchase price to the Underwriters set forth in Schedule
II hereto, the principal amount of Designated Securities set forth opposite the
name of such Underwriter in Schedule I hereto.





                                       1

<PAGE>   21
         If the foregoing is in accordance with your understanding, please sign
and return to us ________ counterparts hereof, and upon acceptance hereof by
you, on behalf of each of the Underwriters, this letter and such acceptance
hereof, including the provisions of the Underwriting Agreement incorporated
herein by reference, shall constitute a binding agreement between each of the
Underwriters and the Company.  It is understood that your acceptance of this
letter on behalf of each of the Underwriters is or will be pursuant to the
authority set forth in a form of Agreement among Underwriters, the form of
which shall be submitted to the Company for examination upon request, but
without warranty on the part of the Representatives as to the authority of the
signers thereof.
                                        
                                          Very truly yours,                
                                                                           
                                          Beckman Instruments, Inc.        
                                                                           
                                          By:_____________________________ 
                                             Name:                         
                                             Title:                        
                                        
Accepted as of the date hereof:

Goldman, Sachs & Co.
[Name(s) of Co-Representative(s)]

By: . . . . . . . . . . . . . . . . . . . . . . . . . . .
              (Goldman, Sachs & Co.)





                                       2

<PAGE>   22
                                   SCHEDULE I



<TABLE>
<CAPTION>
                                                                                                   Principal Amount
                                                                                                    of Designated
                                                                                                   Securities to be
                                                   Underwriter                                        Purchased
                                                   -----------                                     ----------------
                             <S>                                                                  <C>

                             Goldman, Sachs & Co.  . . . . . . . . . . . . . . . . . . . . . .    $
                             [Name(s) of Co-Representative(s)] . . . . . . . . . . . . . . . .                     
                             [Names of other Underwriters] . . . . . . . . . . . . . . . . . .




                                                                                                  -----------------
                                     Total   . . . . . . . . . . . . . . . . . . . . . . . . .    $
                                                                                                  =================
</TABLE>





<PAGE>   23
                                  SCHEDULE II

TITLE OF DESIGNATED SECURITIES:

      [  %] [Floating Rate] [Zero Coupon] [Notes]
      [Debentures] due                       ,

AGGREGATE PRINCIPAL AMOUNT:
      [$]

PRICE TO PUBLIC:

            % of the principal amount of the Designated Securities, plus
            accrued interest[, if any,] from          to [and accrued
            amortization[, if any,] from                 to ]

PURCHASE PRICE BY UNDERWRITERS:

            % of the principal amount of the Designated Securities, plus
            accrued interest from       to          [and accrued
            amortization[, if any,] from                      to         ]

FORM OF DESIGNATED SECURITIES:

      [Definitive form to be made available for checking and packaging at least
      twenty-four hours prior to the Time of Delivery at the office of [The
      Depository Trust Company or its designated custodian] [the
      Representatives]](13)

      [Book-entry only form represented by one or more global securities
      deposited with The Depository Trust Company ("DTC") or its designated
      custodian, to be made available for checking by the Representatives at
      least twenty-four hours prior to the Time of Delivery at the office of
      DTC.](14)

SPECIFIED FUNDS FOR PAYMENT OF PURCHASE PRICE:

      Immediately available (same day) funds

TIME OF DELIVERY:

         a.m. (New York City time),                      , 19

INDENTURE:

      Indenture dated                    , 19         , between the Company and
      , as Trustee

MATURITY:

INTEREST RATE:

      [   %] [Zero Coupon] [See Floating Rate Provisions]

INTEREST PAYMENT DATES:

      [months and dates, commencing ....................., 19..]





<PAGE>   24
REDEMPTION PROVISIONS:

      [No provisions for redemption]

      [The Designated Securities may be redeemed, otherwise than through the
      sinking fund, in whole or in part at the option of the Company, in the
      amount of [$        ] or an integral multiple thereof,

      [on or after       ,     at the following redemption prices (expressed in
      percentages of principal amount).  If [redeemed on or before      ,    %,
      and if] redeemed during the 12-month period beginning               ,

                                                   REDEMPTION
                    YEAR                              PRICE
                    ----                           -----------
                    
      and thereafter at 100% of their principal amount, together in each case
      with accrued interest to the redemption date.]

      [on any interest payment date falling on or after             ,        ,
      at the election of the Company, at a redemption price equal to the
      principal amount thereof, plus accrued interest to the date of
      redemption.]]

      [Other possible redemption provisions, such as mandatory redemption upon
      occurrence of certain events or redemption for changes in tax law]

      [Restriction on refunding]

SINKING FUND PROVISIONS:

      [No sinking fund provisions]

      [The Designated Securities are entitled to the benefit of a sinking fund
      to retire [$          ] principal amount of Designated Securities on
      in each of the years          through

            at 100% of their principal amount plus accrued interest[, together
      with [cumulative] [noncumulative] redemptions at the option of the
      Company to retire an additional [$         ] principal amount of
      Designated Securities in the years           through            at 100%
      of their principal amount plus accrued interest.]

       [If Designated Securities are extendable debt securities, insert--

EXTENDABLE PROVISIONS:

      Designated Securities are repayable on           ,           [insert date
      and years], at the option of the holder, at their principal amount with
      accrued interest.  The initial annual interest rate will be       %, and
      thereafter the annual interest rate will be adjusted on           ,
      and          to a rate not less than       % of the effective annual
      interest rate on U.S. Treasury obligations with         -year maturities
      as of the [insert date 15 days prior to maturity date] prior to such
      [insert maturity date].]

     [If Designated Securities are floating rate debt securities, insert--

FLOATING RATE PROVISIONS:





                                       2

<PAGE>   25
      Initial annual interest rate will be       % through          [and
      thereafter will be adjusted [monthly] [on each          ,
            , and       ] [to an annual rate of      % above the average rate
      for           -year [month][securities][certificates of deposit]
      issued by

      and        [insert names of banks].] [and the annual interest
      rate [thereafter] [from

            through         ] will be the interest yield equivalent of the
      weekly average per annum market discount rate for             -month
      Treasury bills plus         % of Interest Differential (the excess, if
      any, of (i) the then current weekly average per annum secondary market
      yield for         -month certificates of deposit over (ii) the then
      current interest yield equivalent of the weekly average per annum market
      discount rate for         -month Treasury bills); [from     and
      thereafter the rate will be the then current interest yield equivalent
      plus   % of Interest Differential].]

DEFEASANCE PROVISIONS:

CLOSING LOCATION FOR DELIVERY OF DESIGNATED SECURITIES:

ADDITIONAL CLOSING CONDITIONS:

NAMES AND ADDRESSES OF REPRESENTATIVES:

    Designated Representatives:

    Address for Notices, etc.:

[OTHER TERMS] :





                                       3

<PAGE>   26
                                                                        ANNEX II



         Pursuant to Section 7(d) of the Underwriting Agreement, the
accountants shall furnish letters to the Underwriters to the effect that:

             (i)   They are independent certified public accountants with
         respect to the Company and its subsidiaries within the meaning of the
         Act and the applicable published rules and regulations thereunder;

            (ii)   In their opinion, the financial statements and any
         supplementary financial information and schedules audited (and, if
         applicable, financial forecasts and/or pro forma financial
         information) examined by them and included or incorporated by
         reference in the Registration Statement or the Prospectus comply as to
         form in all material respects with the applicable accounting
         requirements of the Act or the Exchange Act, as applicable, and the
         related published rules and regulations thereunder; and, if
         applicable, they have made a review in accordance with standards
         established by the American Institute of Certified Public Accountants
         of the consolidated interim financial statements, selected financial
         data, pro forma financial information, financial forecasts and/or
         condensed financial statements derived from audited financial
         statements of the Company for the periods specified in such letter, as
         indicated in their reports thereon, copies of which have been
         separately furnished to the representative or representatives of the
         Underwriters (the "Representatives") such term to include an
         Underwriter or Underwriters who act without any firm being designated
         as its or their representatives;

           (iii)   They have made a review in accordance with standards
         established by the American Institute of Certified Public Accountants
         of the unaudited condensed consolidated statements of income,
         consolidated balance sheets and consolidated statements of cash flows
         included in the Prospectus and/or included in the Company's quarterly
         report on Form 10-Q incorporated by reference into the Prospectus as
         indicated in their reports thereon copies of which have been
         separately furnished to the Representatives; and on the basis of
         specified procedures including inquiries of officials of the Company
         who have responsibility for financial and accounting matters regarding
         whether the unaudited condensed consolidated financial statements
         referred to in paragraph (vi)(A)(i) below comply as to form in all
         material respects with the applicable accounting requirements of the
         Act and the Exchange Act and the related published rules and
         regulations, nothing came to their attention that caused them to
         believe that the unaudited condensed consolidated financial statements
         do not comply as to form in all material respects with the applicable
         accounting requirements of the Act and the Exchange Act and the
         related published rules and regulations;

            (iv)   The unaudited selected financial information with respect to
         the consolidated results of operations and financial position of the
         Company for the five most recent fiscal years included in the
         Prospectus and included or incorporated by reference in Item 6 of the
         Company's Annual Report on Form 10-K for the most recent fiscal year
         agrees with the corresponding amounts (after restatement where
         applicable) in the audited consolidated financial statements for five
         such fiscal years which were included or incorporated by reference in
         the Company's Annual Reports on Form 10-K for such fiscal years;

             (v)   They have compared the information in the Prospectus under
         selected captions with the disclosure requirements of Regulation S-K
         and on the basis of limited





<PAGE>   27
         procedures specified in such letter nothing came to their attention as
         a result of the foregoing procedures that caused them to believe that
         this information does not conform in all material respects with the
         disclosure requirements of Items 301, 302, 402 and 503(d),
         respectively, of Regulation S-K;

            (vi)   On the basis of limited procedures, not constituting an
         examination in accordance with generally accepted auditing standards,
         consisting of a reading of the unaudited financial statements and
         other information referred to below, a reading of the latest available
         interim financial statements of the Company and its subsidiaries,
         inspection of the minute books of the Company and its subsidiaries
         since the date of the latest audited financial statements included or
         incorporated by reference in the Prospectus, inquiries of officials of
         the Company and its subsidiaries responsible for financial and
         accounting matters and such other inquiries and procedures as may be
         specified in such letter, nothing came to their attention that caused
         them to believe that:

                   (A)  (i) the unaudited condensed consolidated statements of
              income, consolidated balance sheets and consolidated statements
              of cash flows included in the Prospectus and/or included or
              incorporated by reference in the Company's Quarterly Reports on
              Form 10-Q incorporated by reference in the Prospectus do not
              comply as to form in all material respects with the applicable
              accounting requirements of the Exchange Act and the related
              published rules and regulations, or (ii) any material
              modifications should be made to the unaudited condensed
              consolidated statements of income, consolidated balance sheets
              and consolidated statements of cash flows included in the
              Prospectus or included in the Company's Quarterly Reports on Form
              10-Q incorporated by reference in the Prospectus for them to be
              in conformity with generally accepted accounting principles;

                   (B)  any other unaudited income statement data and balance
              sheet items included in the Prospectus do not agree with the
              corresponding items in the unaudited consolidated financial
              statements from which such data and items were derived, and any
              such unaudited data and items were not determined on a basis
              substantially consistent with the basis for the corresponding
              amounts in the audited consolidated financial statements included
              or incorporated by reference in the Company's Annual Report on
              Form 10-K for the most recent fiscal year;

                   (C)  the unaudited financial statements which were not
              included in the Prospectus but from which were derived the
              unaudited condensed financial statements referred to in clause
              (A) and any unaudited income statement data and balance sheet
              items included in the Prospectus and referred to in Clause (B)
              were not determined on a basis substantially consistent with the
              basis for the audited financial statements included or
              incorporated by reference in the Company's Annual Report on Form
              10-K for the most recent fiscal year;

                   (D)  any unaudited pro forma consolidated condensed
              financial statements included or incorporated by reference in the
              Prospectus do not comply as to form in all material respects with
              the applicable accounting requirements of the Act and the
              published rules and regulations thereunder or the pro forma
              adjustments have not been properly applied to the historical
              amounts in the compilation of those statements;





                                       2

<PAGE>   28
                   (E)  as of a specified date not more than five days prior to
              the date of such letter, there have been any changes in the
              consolidated capital stock (other than issuances of capital stock
              upon exercise of options and stock appreciation rights, upon
              earn-outs of performance shares and upon conversions of
              convertible securities, in each case which were outstanding on
              the date of the latest balance sheet included or incorporated by
              reference in the Prospectus) or any increase in the consolidated
              long-term debt of the Company and its subsidiaries, or any
              decreases in consolidated net current assets or stockholders'
              equity or other items specified by the Representatives, or any
              increases in any items specified by the Representatives, in each
              case as compared with amounts shown in the latest balance sheet
              included or incorporated by reference in the Prospectus, except
              in each case for changes, increases or decreases which the
              Prospectus discloses have occurred or may occur or which are
              described in such letter; and

                   (F)  for the period from the date of the latest financial
              statements included or incorporated by reference in the
              Prospectus to the specified date referred to in Clause (E) there
              were any decreases in consolidated net revenues or operating
              profit or the total or per share amounts of consolidated net
              income or other items specified by the Representatives, or any
              increases in any items specified by the Representatives, in each
              case as compared with the comparable period of the preceding year
              and with any other period of corresponding length specified by
              the Representatives, except in each case for increases or
              decreases which the Prospectus discloses have occurred or may
              occur or which are described in such letter; and

           (vii)   In addition to the audit referred to in their report(s)
         included or incorporated by reference in the Prospectus and the
         limited procedures, inspection of minute books, inquiries and other
         procedures referred to in paragraphs (iii) and (vi) above, they have
         carried out certain specified procedures, not constituting an audit in
         accordance with generally accepted auditing standards, with respect to
         certain amounts, percentages and financial information specified by
         the Representatives which are derived from the general accounting
         records of the Company and its subsidiaries, which appear in the
         Prospectus (excluding documents incorporated by reference), or in Part
         II of, or in exhibits and schedules to, the Registration Statement
         specified by the Representatives or in documents incorporated by
         reference in the Prospectus specified by the Representatives, and have
         compared certain of such amounts, percentages and financial
         information with the accounting records of the Company and its
         subsidiaries and have found them to be in agreement.

         All references in this Annex II to the Prospectus shall be deemed to
refer to the Prospectus (including the documents incorporated by reference
therein) as defined in the Underwriting Agreement as of the date of the letter
delivered on the date of the Pricing Agreement for purposes of such letter and
to the Prospectus as amended or supplemented (including the documents
incorporated by reference therein) in relation to the applicable Designated
Securities for purposes of the letter delivered at the Time of Delivery for
such Designated Securities.





                                       3


<PAGE>   1





                                                                     EXHIBIT 4.1

                                                          Draft of April 4, 1996


================================================================================




                           BECKMAN INSTRUMENTS, INC.

                                      AND

                       THE FIRST NATIONAL BANK OF CHICAGO
                                                  Trustee



                                 ______________


                                SENIOR INDENTURE

                         Dated as of ____________, 1996


                                 ______________





================================================================================
<PAGE>   2
         ..............................................................
    CERTAIN SECTIONS OF THIS INDENTURE RELATING TO SECTIONS 310 THROUGH 318,
                 INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939:

<TABLE>
<CAPTION>
TRUST INDENTURE
  ACT SECTION                                                                    INDENTURE SECTION
<S>                                                                              <C>
Section  310(a)(1)      . . . . . . . . . . . . . . . . . . . . . . . . . . .    609
                                                                                    
            (a)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . . .    609
            (a)(3)      . . . . . . . . . . . . . . . . . . . . . . . . . . .    Not Applicable
            (a)(4)      . . . . . . . . . . . . . . . . . . . . . . . . . . .    Not Applicable
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    608
                                                                                 610
Section  311(a)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    613
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    613
Section  312(a)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    701
                                                                                 702
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    702
            (c)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    702
Section  313(a)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    703
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    703
            (c)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    703
            (d)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    703
Section  314(a)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    704
            (a)(4)      . . . . . . . . . . . . . . . . . . . . . . . . . . .    101
                                                                                 1004
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    Not Applicable
            (c)(1)      . . . . . . . . . . . . . . . . . . . . . . . . . . .    102
            (c)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . . .    102
            (c)(3)      . . . . . . . . . . . . . . . . . . . . . . . . . . .    Not Applicable
            (d)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    Not Applicable
            (e)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    102
Section  315(a)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    601
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    602
            (c)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    601
            (d)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    601
            (e)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    514
Section  316(a)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    101
            (a)(1)(A)   . . . . . . . . . . . . . . . . . . . . . . . . . . .    502
                                                                                 512
            (a)(1)(B)   . . . . . . . . . . . . . . . . . . . . . . . . . . .    513
            (a)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . . .    Not Applicable
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    508
            (c)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    104
Section  317(a)(1)      . . . . . . . . . . . . . . . . . . . . . . . . . . .    503
            (a)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . . .    504
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    1003
Section  318(a)         . . . . . . . . . . . . . . . . . . . . . . . . . . .    107
</TABLE>

___________________
NOTE:  This reconciliation and tie shall not, for any purpose, be deemed to be
a part of the Indenture.
<PAGE>   3

<TABLE>
<CAPTION>
                                                        TABLE OF CONTENTS                                                   PAGE
                                                                                                                            ----
<S>                                                                                                                           <C>
RECITALS OF THE COMPANY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1

                                                          ARTICLE ONE

                                                DEFINITIONS AND OTHER PROVISIONS
                                                     OF GENERAL APPLICATION

SECTION 101.    Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
Affiliate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
Attributable Value  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
Authenticating Agent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
Board of Directors  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
Board Resolution  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
Business Day  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
Commission  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
Company Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
Company Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
Consolidated Net Tangible Assets  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
Conversion Price  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
Corporate Trust Office  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
corporation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
Covenant Defeasance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
Defaulted Interest  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
Defeasance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
Depositary  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
Equipment Held for Resale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
Event of Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
Exchange Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
Expiration Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
Global Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
Holder  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
Indenture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
interest  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
Interest Payment Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
Investment Company Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
Lien  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
Maturity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
Notice of Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
</TABLE>





___________________
NOTE:  This table of contents shall not, for any purpose, be deemed to be a
part of the Indenture.

                                      -i-
<PAGE>   4
<TABLE>
<CAPTION>
                                                                                                                            PAGE
                                                                                                                            ----
<S>                                                                                                                          <C>
Officers' Certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
Opinion of Counsel  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
Original Issue Discount Security  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
Outstanding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
Paying Agent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
Person  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
Place of Payment  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
Predecessor Security  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
Principal Property  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
Redemption Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
Redemption Price  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
Regular Record Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
Responsible Officer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
Restricted Subsidiary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
Securities Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
Security Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
Security Registrar  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
Special Record Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
Stated Maturity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
Subsidiary  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
Trust Indenture Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
U.S. Government Obligation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
Vice President  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
SECTION 102.    Compliance Certificates and Opinions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
SECTION 103.    Form of Documents Delivered to Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   9
SECTION 104.    Acts of Holders; Record Dates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   9
SECTION 105.    Notices, Etc., to Trustee and Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
SECTION 106.    Notice to Holders; Waiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
SECTION 107.    Conflict with Trust Indenture Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
SECTION 108.    Effect of Headings and Table of Contents  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
SECTION 109.    Successors and Assigns  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
SECTION 110.    Separability Clause . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 111.    Benefits of Indenture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 112.    Governing Law . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 113.    Legal Holidays  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13


                                                          ARTICLE TWO

                                                         SECURITY FORMS

SECTION 201.    Forms Generally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 202.    Form of Face of Security  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
</TABLE>





                                      -ii-
<PAGE>   5
<TABLE>
<CAPTION>
                                                                                                                  PAGE
                                                                                                                  ----
<S>             <C>                                                                                                <C>
SECTION 203.    Form of Reverse of Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
SECTION 204.    Form of Legend for Global Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21
SECTION 205.    Form of Trustee's Certificate of Authentication . . . . . . . . . . . . . . . . . . . . . . . . .  22
                
                                               ARTICLE THREE
                
                                               THE SECURITIES
                
SECTION 301.    Amount Unlimited; Issuable in Series  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22
SECTION 302.    Denominations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
SECTION 303.    Execution, Authentication, Delivery and Dating  . . . . . . . . . . . . . . . . . . . . . . . . .  25
SECTION 304.    Temporary Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
SECTION 305.    Registration, Registration of Transfer and Exchange . . . . . . . . . . . . . . . . . . . . . . .  27
SECTION 306.    Mutilated, Destroyed, Lost and Stolen Securities  . . . . . . . . . . . . . . . . . . . . . . . .  29
SECTION 307.    Payment of Interest; Interest Rights Preserved  . . . . . . . . . . . . . . . . . . . . . . . . .  29
SECTION 308.    Persons Deemed Owners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
SECTION 309.    Cancellation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
SECTION 310.    Computation of Interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
                
                                                ARTICLE FOUR
                
                                         SATISFACTION AND DISCHARGE
                
SECTION 401.    Satisfaction and Discharge of Indenture . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32
SECTION 402.    Application of Trust Money  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33
                
                                                ARTICLE FIVE
                
                                                  REMEDIES
                
SECTION 501.    Events of Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33
SECTION 502.    Acceleration of Maturity; Rescission and Annulment  . . . . . . . . . . . . . . . . . . . . . . .  35
SECTION 503.    Collection of Indebtedness and Suits for Enforcement by Trustee . . . . . . . . . . . . . . . . .  36
SECTION 504.    Trustee May File Proofs of Claim  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
SECTION 505.    Trustee May Enforce Claims Without Possession of Securities . . . . . . . . . . . . . . . . . . .  37
SECTION 506.    Application of Money Collected  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
SECTION 507.    Limitation on Suits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
SECTION 508.    Unconditional Right of Holders to Receive Principal, Premium and Interest . . . . . . . . . . . .  39
</TABLE>





                                     -iii-
<PAGE>   6
<TABLE>
<CAPTION>
                                                                                                                  PAGE
                                                                                                                  ----
<S>             <C>                                                                                                <C>
SECTION 509.    Restoration of Rights and Remedies  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
SECTION 510.    Rights and Remedies Cumulative  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
SECTION 511.    Delay or Omission Not Waiver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
SECTION 512.    Control by Holders  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
SECTION 513.    Waiver of Past Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
SECTION 514.    Undertaking for Costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
SECTION 515.    Waiver of Usury, Stay or Extension Laws . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
                
                
                                                ARTICLE SIX
                
                                                THE TRUSTEE
                
SECTION 601.    Certain Duties and Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
SECTION 602.    Notice of Defaults  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
SECTION 603.    Certain Rights of Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
SECTION 604.    Not Responsible for Recitals or Issuance of Securities  . . . . . . . . . . . . . . . . . . . . .  43
SECTION 605.    May Hold Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
SECTION 606.    Money Held in Trust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
SECTION 607.    Compensation and Reimbursement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
SECTION 608.    Conflicting Interests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44
SECTION 609.    Corporate Trustee Required; Eligibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44
SECTION 610.    Resignation and Removal; Appointment of Successor . . . . . . . . . . . . . . . . . . . . . . . .  44
SECTION 611.    Acceptance of Appointment by Successor  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  46
SECTION 612.    Merger, Conversion, Consolidation or Succession to Business . . . . . . . . . . . . . . . . . . .  47
SECTION 613.    Preferential Collection of Claims Against Company . . . . . . . . . . . . . . . . . . . . . . . .  47
SECTION 614.    Appointment of Authenticating Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
                
                
                                               ARTICLE SEVEN
                
                             HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY
                
SECTION 701.    Company to Furnish Trustee Names and Addresses of Holders . . . . . . . . . . . . . . . . . . . .  49
SECTION 702.    Preservation of Information; Communications to Holders  . . . . . . . . . . . . . . . . . . . . .  49
SECTION 703.    Reports by Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50
SECTION 704.    Reports by Company  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50
                
                
                                               ARTICLE EIGHT
                
                            CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE
</TABLE>





                                      -iv-
<PAGE>   7
<TABLE>
<CAPTION>
                                                                                                                  PAGE
                                                                                                                  ----
<S>             <C>                                                                                                <C>
SECTION 801.    Company May Consolidate, Etc., Only on Certain Terms  . . . . . . . . . . . . . . . . . . . . . .  50
SECTION 802.    Successor Substituted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
                
                
                                                ARTICLE NINE
                
                                          SUPPLEMENTAL INDENTURES
                
SECTION 901.    Supplemental Indentures Without Consent of Holders  . . . . . . . . . . . . . . . . . . . . . . .  52
SECTION 902.    Supplemental Indentures With Consent of Holders . . . . . . . . . . . . . . . . . . . . . . . . .  53
SECTION 903.    Execution of Supplemental Indentures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
SECTION 904.    Effect of Supplemental Indentures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
SECTION 905.    Conformity with Trust Indenture Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
SECTION 906.    Reference in Securities to Supplemental Indentures  . . . . . . . . . . . . . . . . . . . . . . .  55
                
                                                ARTICLE TEN
                
                                                 COVENANTS
                
SECTION 1001.   Payment of Principal, Premium and Interest  . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
SECTION 1002.   Maintenance of Office or Agency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
SECTION 1003.   Money for Securities Payments to Be Held in Trust . . . . . . . . . . . . . . . . . . . . . . . .  56
SECTION 1004.   Statement by Officers as to Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
SECTION 1005.   Existence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
SECTION 1006.   Maintenance of Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
SECTION 1007.   Payment of Taxes and Other Claims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
SECTION 1008.   Limitation on Liens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58
SECTION 1009.   Limitation on Sale and Leaseback Transactions . . . . . . . . . . . . . . . . . . . . . . . . . .  59
SECTION 1010.   Waiver of Certain Covenants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
                
                
                                               ARTICLE ELEVEN
                
                                          REDEMPTION OF SECURITIES
                
SECTION 1101.   Applicability of Article  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
SECTION 1102.   Election to Redeem; Notice to Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
SECTION 1103.   Selection by Trustee of Securities to Be Redeemed . . . . . . . . . . . . . . . . . . . . . . . .  61
SECTION 1104.   Notice of Redemption  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  61
SECTION 1105.   Deposit of Redemption Price . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  62
SECTION 1106.   Securities Payable on Redemption Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  62
SECTION 1107.   Securities Redeemed in Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  63
</TABLE>





                                      -v-
<PAGE>   8
<TABLE>
<CAPTION>
                                                                                                                   PAGE
                                                                                                                   ----
<S>              <C>                                                                                                <C>
                                                ARTICLE TWELVE
                 
                                           CONVERSION OF SECURITIES
                 
SECTION 1201.    Applicability; Conversion Privilege and Conversion Price  . . . . . . . . . . . . . . . . . . . .  63
SECTION 1202.    Exercise of Conversion Privilege  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64
SECTION 1203.    Fractions of Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64
SECTION 1204.    Adjustment of Conversion Price  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  65
SECTION 1205.    Notice of Adjustments of Conversion Price . . . . . . . . . . . . . . . . . . . . . . . . . . . .  69
SECTION 1206.    Notice of Certain Corporate Action  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  69
SECTION 1207.    Company to Reserve Common Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  70
SECTION 1208.    Taxes on Conversions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  70
SECTION 1209.    Covenant as to Common Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  70
SECTION 1210.    Cancellation of Converted Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  70
SECTION 1211.    Provisions in Case of Consolidation, Merger or Sale of Assets . . . . . . . . . . . . . . . . . .  71
SECTION 1212.    Responsibility of Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  71
                 
                 
                                               ARTICLE THIRTEEN
                 
                                                SINKING FUNDS
                 
SECTION 1301.    Applicability of Article  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  72
SECTION 1302.    Satisfaction of Sinking Fund Payments with Securities . . . . . . . . . . . . . . . . . . . . . .  72
SECTION 1303.    Redemption of Securities for Sinking Fund . . . . . . . . . . . . . . . . . . . . . . . . . . . .  72
                 
                 
                                               ARTICLE FOURTEEN
                 
                                      DEFEASANCE AND COVENANT DEFEASANCE
                 
SECTION 1401.    Company's Option to Effect Defeasance or Covenant Defeasance  . . . . . . . . . . . . . . . . . .  73
SECTION 1402.    Defeasance and Discharge  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  73
SECTION 1403.    Covenant Defeasance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  74
SECTION 1404.    Conditions to Defeasance or Covenant Defeasance . . . . . . . . . . . . . . . . . . . . . . . . .  74
SECTION 1405.    Deposited Money and U.S. Government Obligations to Be Held in Trust; Miscellaneous Provisions . .  76
SECTION 1406.    Reinstatement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  77
</TABLE>





                                      -vi-
<PAGE>   9
          INDENTURE, dated as of __________, 1996, between Beckman Instruments,
Inc., a corporation duly organized and existing under the laws of the State of
Delaware (herein called the "Company"), having its principal office at 2500
Harbor Boulevard, Fullerton, California 92634 and The First National Bank of
Chicago, a national banking association duly organized and existing under the
laws of the United States, as Trustee (herein called the "Trustee").


                            RECITALS OF THE COMPANY

          The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its unsecured
debentures, notes or other evidences of indebtedness (herein called the
"Securities"), to be issued in one or more series as in this Indenture
provided.

          All things necessary to make this Indenture a valid agreement of the
Company, in accordance with its terms, have been done.

          NOW, THEREFORE, THIS INDENTURE WITNESSETH:

          For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually agreed, for the equal and
proportionate benefit of all Holders of the Securities or of series thereof, as
follows:


                                  ARTICLE ONE

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION


SECTION 101.   Definitions.

          For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:

          (1)  the terms defined in this Article have the meanings assigned to
     them in this Article and include the plural as well as the singular;

          (2)  all other terms used herein which are defined in the Trust
     Indenture Act, either directly or by reference therein, have the meanings
     assigned to them therein;

          (3)  all accounting terms not otherwise defined herein have the
     meanings assigned to them in accordance with generally accepted accounting
     principles, and, except as otherwise herein expressly provided, the term
     "generally accepted accounting principles" with respect to any computation
     required or permitted
<PAGE>   10
     hereunder shall mean such accounting principles as are generally
     accepted--at the date of this instrument--at the date of such computation;

          (4)  unless the context otherwise requires, any reference to an
     "Article" or a "Section" refers to an Article or a Section, as the case
     may be, of this Indenture; and

          (5)  the words "herein," "hereof" and "hereunder" and other words of
     similar import refer to this Indenture as a whole and not to any
     particular Article, Section or other subdivision.

          "Act," when used with respect to any Holder, has the meaning 
specified in Section 104.

          "Affiliate" of any specified Person means any other Person directly
or indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For the purposes of this definition,
"control" when used with respect to any specified Person means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

          "Attributable Value," when used with respect to any sale and
leaseback transaction means, as of the time of determination, the total
obligation (discounted to present value at the highest rate of interest
specified by the terms of any series of Securities then Outstanding compounded
semi-annually) of the lessee for rental payments (other than amounts required
to be paid on account of property taxes as well as maintenance, repairs,
insurance, water rates and other items which do not constitute payments for
property rights) during the remaining portion of the base term of the lease
included in such sale and leaseback transaction.

          "Authenticating Agent" means any Person authorized by the Trustee
pursuant to Section 614 to act on behalf of the Trustee to authenticate
Securities of one or more series.

          "Board of Directors" means either the board of directors of the
Company or any duly authorized committee of that board.

          "Board Resolution" means a copy of a resolution certified by the
Secretary or an Assistant Secretary of the Company to have been duly adopted by
the Board of Directors and to be in full force and effect on the date of such
certification, and delivered to the Trustee.

          "Business Day," when used with respect to any Place of Payment, means
each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on
which banking institutions in that Place of Payment are authorized or obligated
by law or executive order to close.





                                      -2-
<PAGE>   11
          "Commission" means the Securities and Exchange Commission, from time
to time constituted, created under the Exchange Act, or, if at any time after
the execution of this instrument such Commission is not existing and performing
the duties now assigned to it under the Trust Indenture Act, then the body
performing such duties at such time.

          "Company" means the Person named as the "Company" in the first
paragraph of this instrument until a successor Person shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Company" shall mean such successor Person.

          "Company Request" or "Company Order" means a written request or order
signed in the name of the Company by its Chairman of the Board, its Vice
Chairman of the Board, its President or a Vice President, and by its Treasurer,
an Assistant Treasurer, its Secretary or an Assistant Secretary, and delivered
to the Trustee.

          "Consolidated Net Tangible Assets" of the Company means the aggregate
amount of assets (less applicable reserves and other properly deductible items)
after deducting therefrom (a) all current liabilities (excluding any
indebtedness for money borrowed having a maturity of less than 12 months from
the date of the most recent consolidated balance sheet of the Company but which
by its terms is renewable or extendable beyond 12 months from such date at the
option of the borrower) and (b) all goodwill, trade names, patents, unamortized
debt discount and expense and any other like intangibles, all as set forth on
the most recent consolidated balance sheet of the Company and computed in
accordance with generally accepted accounting principles.

          "Conversion Price" has the meaning specified in Section 1201.

          "Corporate Trust Office" means the principal office of the Trustee in
the City of Chicago, Illinois at which at any particular time its corporate
trust business shall be administered.

          "corporation" means a corporation, association, company, joint-stock
company or business trust.

          "Covenant Defeasance" has the meaning specified in Section 1403.

          "Defaulted Interest" has the meaning specified in Section 307.

          "Defeasance" has the meaning specified in Section 1402.

          "Depositary" means, with respect to Securities of any series issuable
in whole or in part in the form of one or more Global Securities, a clearing
agency registered under the Exchange Act that is designated to act as
Depositary for such Securities as contemplated by Section 301.





                                      -3-
<PAGE>   12
          "Equipment Held for Resale" means instrument systems and related
accessories and components manufactured or assembled by the Company that are
owned and held for placement in facilities of the Company's customers.

          "Event of Default" has the meaning specified in Section 501.

          "Exchange Act" means the Securities Exchange Act of 1934 and any
statute successor thereto, in each case as amended from time to time.

          "Expiration Date" has the meaning specified in Section 104.

          "Global Security" means a Security that evidences all or part of the
Securities of any series and bears the legend set forth in Section 204 (or such
legend as may be specified as contemplated by Section 301 for such Securities).

          "Holder" means a Person in whose name a Security is registered in the
Security Register.

          "Indenture" means this instrument as originally executed and as it
may from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof,
including, for all purposes of this instrument and any such supplemental
indenture, the provisions of the Trust Indenture Act that are deemed to be a
part of and govern this instrument and any such supplemental indenture,
respectively. The term "Indenture" shall also include the terms of particular
series of Securities established as contemplated by Section 301.

          "interest," when used with respect to an Original Issue Discount
Security which by its terms bears interest only after Maturity, means interest
payable after Maturity.

          "Interest Payment Date," when used with respect to any Security,
means the Stated Maturity of an instalment of interest on such Security.

          "Investment Company Act" means the Investment Company Act of 1940 and
any statute successor thereto, in each case as amended from time to time.

          "Lien" means, with respect to any property or assets, any mortgage or
deed of trust, pledge, hypothecation, assignment, security interest, lien,
encumbrance, or other security arrangement of any kind or nature whatsoever on
or with respect to such property or assets (including any conditional sale or
other title retention agreement having substantially the same economic effect
as any of the foregoing).

          "Maturity," when used with respect to any Security, means the date on
which the principal of such Security or an instalment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, call for redemption or otherwise.





                                      -4-
<PAGE>   13
          "Notice of Default" means a written notice of the kind specified in
Section 501(4) or 501(5).

          "Officers' Certificate" means a certificate signed by the Chairman of
the Board, a Vice Chairman of the Board, the President or a Vice President, and
by the Treasurer, an Assistant Treasurer, the Secretary or an Assistant
Secretary, of the Company, and delivered to the Trustee. One of the officers
signing an Officers' Certificate given pursuant to Section 1004 shall be the
principal executive, financial or accounting officer of the Company.

          "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for the Company, and who shall be reasonably acceptable to the Trustee.

          "Original Issue Discount Security" means any Security which provides
for an amount less than the principal amount thereof to be due and payable upon
a declaration of acceleration of the Maturity thereof pursuant to Section 502.

          "Outstanding," when used with respect to Securities, means, as of the
date of determination, all Securities theretofore authenticated and delivered
under this Indenture, except:

          (1)  Securities theretofore cancelled by the Trustee or delivered to
               the Trustee for cancellation;

          (2)  Securities for whose payment or redemption money in the
     necessary amount has been theretofore deposited with the Trustee or any
     Paying Agent (other than the Company) in trust or set aside and segregated
     in trust by the Company (if the Company shall act as its own Paying Agent)
     for the Holders of such Securities; provided that, if such Securities are
     to be redeemed, notice of such redemption has been duly given pursuant to
     this Indenture or provision therefor satisfactory to the Trustee has been
     made;

          (3)  Securities as to which Defeasance has been effected pursuant to 
     Section 1402; and

          (4)  Securities which have been paid pursuant to Section 306 or in
     exchange for or in lieu of which other Securities have been authenticated
     and delivered pursuant to this Indenture, other than any such Securities
     in respect of which there shall have been presented to the Trustee proof
     satisfactory to it that such Securities are held by a bona fide purchaser
     in whose hands such Securities are valid obligations of the Company;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given, made or taken any
request, demand, authorization, direction, notice, consent, waiver or other
action hereunder as of any date, (A) the principal amount of an Original Issue
Discount Security which shall be deemed to be Outstanding shall be the amount
of the principal thereof which would be due and





                                      -5-
<PAGE>   14
payable as of such date upon acceleration of the Maturity thereof to such date
pursuant to Section 502, (B) if, as of such date, the principal amount payable
at the Stated Maturity of a Security is not determinable, the principal amount
of such Security which shall be deemed to be Outstanding shall be the amount as
specified or determined as contemplated by Section 301, (C) the principal
amount of a Security denominated in one or more foreign currencies or currency
units which shall be deemed to be Outstanding shall be the U.S. dollar
equivalent, determined as of such date in the manner provided as contemplated
by Section 301, of the principal amount of such Security (or, in the case of a
Security described in Clause (A) or (B) above, of the amount determined as
provided in such Clause), and (D) Securities owned by the Company or any other
obligor upon the Securities or any Affiliate of the Company or of such other
obligor shall be disregarded and deemed not to be Outstanding, except that, in
determining whether the Trustee shall be protected in relying upon any such
request, demand, authorization, direction, notice, consent, waiver or other
action, only Securities which the Trustee knows to be so owned shall be so
disregarded. Securities so owned which have been pledged in good faith may be
regarded as Outstanding if the pledgee establishes to the satisfaction of the
Trustee the pledgee's right so to act with respect to such Securities and that
the pledgee is not the Company or any other obligor upon the Securities or any
Affiliate of the Company or of such other obligor.

          "Paying Agent" means any Person authorized by the Company to pay the
principal of or any premium or interest on any Securities on behalf of the
Company.

          "Person" means any individual, corporation, partnership, joint
venture, trust, unincorporated organization or government or any agency or
political subdivision thereof.

          "Place of Payment," when used with respect to the Securities of any
series, means the place or places where the principal of and any premium and
interest on the Securities of that series are payable as specified as
contemplated by Section 301.

          "Predecessor Security" of any particular Security means every
previous Security evidencing all or a portion of the same debt as that
evidenced by such particular Security; and, for the purposes of this
definition, any Security authenticated and delivered under Section 306 in
exchange for or in lieu of a mutilated, destroyed, lost or stolen Security
shall be deemed to evidence the same debt as the mutilated, destroyed, lost or
stolen Security.

          "Principal Property" means any real property of the Company or any of
its Subsidiaries, and any equipment located at or comprising a part of any such
property, having a net book value, as of the date of determination, in excess
of the greater of $50,000,000 and 10% of Consolidated Net Tangible Assets of
the Company; provided, however, that Principal Property shall not include
Equipment Held for Resale.

          "Redemption Date," when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to this
Indenture.





                                      -6-
<PAGE>   15
          "Redemption Price," when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed pursuant to this
Indenture.

          "Regular Record Date" for the interest payable on any Interest
Payment Date on the Securities of any series means the date specified for that
purpose as contemplated by Section 301.

          "Responsible Officer," when used with respect to the Trustee, means
the chairman or any vice-chairman of the board of directors, the chairman or
any vice-chairman of the executive committee of the board of directors, the
chairman of the trust committee, the president, any vice president, the
secretary, any assistant secretary, the treasurer, any assistant treasurer, the
cashier, any assistant cashier, any trust officer or assistant trust officer,
the controller or any assistant controller or any other officer of the Trustee
customarily performing functions similar to those performed by any of the above
designated officers and also means, with respect to a particular corporate
trust matter, any other officer to whom such matter is referred because of his
knowledge of and familiarity with the particular subject.

          "Restricted Subsidiary" means any Subsidiary of the Company which
owns or leases a Principal Property.

          "Securities" has the meaning stated in the first recital of this
Indenture and more particularly means any Securities authenticated and
delivered under this Indenture.

          "Securities Act" means the Securities Act of 1933 and any statute
successor thereto, in each case as amended from time to time.

          "Security Register" and "Security Registrar" have the respective
meanings specified in Section 305.

          "Special Record Date" for the payment of any Defaulted Interest means
a date fixed by the Trustee pursuant to Section 307.

          "Stated Maturity," when used with respect to any Security or any
instalment of principal thereof or interest thereon, means the date specified
in such Security as the fixed date on which the principal of such Security or
such instalment of principal or interest is due and payable.

          "Subsidiary" means a corporation more than 50% of the outstanding
voting stock of which is owned, directly or indirectly, by the Company or by
one or more other Subsidiaries, or by the Company and one or more other
Subsidiaries. For the purposes of this definition, "voting stock" means stock
which ordinarily has voting power for the election of directors, whether at all
times or only so long as no senior class of stock has such voting power by
reason of any contingency.

          "Trust Indenture Act" means the Trust Indenture Act of 1939 as in
force at the date as of which this instrument was executed; provided, however,
that in the event the





                                      -7-
<PAGE>   16
Trust Indenture Act of 1939 is amended after such date, "Trust Indenture Act"
means, to the extent required by any such amendment, the Trust Indenture Act of
1939 as so amended.

          "Trustee" means the Person named as the "Trustee" in the first
paragraph of this instrument until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder,
and if at any time there is more than one such Person, "Trustee" as used with
respect to the Securities of any series shall mean the Trustee with respect to
Securities of that series.

          "U.S. Government Obligation" has the meaning specified in Section
1404.

          "Vice President," when used with respect to the Company or the
Trustee, means any vice president, whether or not designated by a number or a
word or words added before or after the title "vice president."


SECTION 102.   Compliance Certificates and Opinions.

          Upon any application or request by the Company to the Trustee to take
any action under any provision of this Indenture, the Company shall furnish to
the Trustee such certificates and opinions as may be required under the Trust
Indenture Act. Each such certificate or opinion shall be given in the form of
an Officers' Certificate, if to be given by an officer of the Company, or an
Opinion of Counsel, if to be given by counsel, and shall comply with the
requirements of the Trust Indenture Act and any other requirements set forth in
this Indenture.

          Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture (except for certificates
provided for in Section 1004) shall include,

          (1)  a statement that each individual signing such certificate or
     opinion has read such covenant or condition and the definitions herein
     relating thereto;

          (2)  a brief statement as to the nature and scope of the examination
     or investigation upon which the statements or opinions contained in such
     certificate or opinion are based;

          (3)  a statement that, in the opinion of each such individual, he has
     made such examination or investigation as is necessary to enable him to
     express an informed opinion as to whether or not such covenant or
     condition has been complied with; and

          (4)  a statement as to whether, in the opinion of each such
     individual, such condition or covenant has been complied with.





                                      -8-
<PAGE>   17
SECTION 103.   Form of Documents Delivered to Trustee.

          In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

          Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to the matters upon which his certificate or opinion is based are
erroneous. Any such certificate or opinion of counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or in the exercise of reasonable care
should know, that the certificate or opinion or representations with respect to
such matters are erroneous.

          Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.


SECTION 104.   Acts of Holders; Record Dates.

          Any request, demand, authorization, direction, notice, consent,
waiver or other action provided or permitted by this Indenture to be given,
made or taken by Holders may be embodied in and evidenced by one or more
instruments of substantially similar tenor signed by such Holders in person or
by agent duly appointed in writing; and, except as herein otherwise expressly
provided, such action shall become effective when such instrument or
instruments are delivered to the Trustee and, where it is hereby expressly
required, to the Company. Such instrument or instruments (and the action
embodied therein and evidenced thereby) are herein sometimes referred to as the
"Act" of the Holders signing such instrument or instruments. Proof of execution
of any such instrument or of a writing appointing any such agent shall be
sufficient for any purpose of this Indenture and (subject to Section 601)
conclusive in favor of the Trustee and the Company, if made in the manner
provided in this Section.

          The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof. Where
such execution is by a signer acting in a capacity other than his individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of





                                      -9-
<PAGE>   18
his authority. The fact and date of the execution of any such instrument or
writing, or the authority of the Person executing the same, may also be proved
in any other manner which the Trustee deems sufficient.

          The ownership of Securities shall be proved by the Security Register.

          Any request, demand, authorization, direction, notice, consent,
waiver or other Act of the Holder of any Security shall bind every future
Holder of the same Security and the Holder of every Security issued upon the
registration of transfer thereof or in exchange therefor or in lieu thereof in
respect of anything done, omitted or suffered to be done by the Trustee or the
Company in reliance thereon, whether or not notation of such action is made
upon such Security.

          The Company may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities of any series entitled to
give, make or take any request, demand, authorization, direction, notice,
consent, waiver or other action provided or permitted by this Indenture to be
given, made or taken by Holders of Securities of such series, provided that the
Company may not set a record date for, and the provisions of this paragraph
shall not apply with respect to, the giving or making of any notice,
declaration, request or direction referred to in the next paragraph. If any
record date is set pursuant to this paragraph, the Holders of Outstanding
Securities of the relevant series on such record date, and no other Holders,
shall be entitled to take the relevant action, whether or not such Holders
remain Holders after such record date; provided that no such action shall be
effective hereunder unless taken on or prior to the applicable Expiration Date
by Holders of the requisite principal amount of Outstanding Securities of such
series on such record date. Nothing in this paragraph shall be construed to
prevent the Company from setting a new record date for any action for which a
record date has previously been set pursuant to this paragraph (whereupon the
record date previously set shall automatically and with no action by any Person
be cancelled and of no effect), and nothing in this paragraph shall be
construed to render ineffective any action taken by Holders of the requisite
principal amount of Outstanding Securities of the relevant series on the date
such action is taken. Promptly after any record date is set pursuant to this
paragraph, the Company, at its own expense, shall cause notice of such record
date, the proposed action by Holders and the applicable Expiration Date to be
given to the Trustee in writing and to each Holder of Securities of the
relevant series in the manner set forth in Section 106.

          The Trustee may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities of any series entitled to
join in the giving or making of (i) any Notice of Default, (ii) any declaration
of acceleration referred to in Section 502, (iii) any request to institute
proceedings referred to in Section 507(2) or (iv) any direction referred to in
Section 512, in each case with respect to Securities of such series. If any
record date is set pursuant to this paragraph, the Holders of Outstanding
Securities of such series on such record date, and no other Holders, shall be
entitled to join in such notice, declaration, request or direction, whether or
not such Holders remain Holders after such record date; provided that no such
action shall be effective hereunder unless taken on or prior to the applicable
Expiration Date by Holders





                                      -10-
<PAGE>   19
of the requisite principal amount of Outstanding Securities of such series on
such record date. Nothing in this paragraph shall be construed to prevent the
Trustee from setting a new record date for any action for which a record date
has previously been set pursuant to this paragraph (whereupon the record date
previously set shall automatically and with no action by any Person be
cancelled and of no effect), and nothing in this paragraph shall be construed
to render ineffective any action taken by Holders of the requisite principal
amount of Outstanding Securities of the relevant series on the date such action
is taken. Promptly after any record date is set pursuant to this paragraph, the
Trustee, at the Company's expense, shall cause notice of such record date, the
proposed action by Holders and the applicable Expiration Date to be given to
the Company in writing and to each Holder of Securities of the relevant series
in the manner set forth in Section 106.

          With respect to any record date set pursuant to this Section, the
party hereto which sets such record dates may designate any day as the
"Expiration Date" and from time to time may change the Expiration Date to any
earlier or later day; provided that no such change shall be effective unless
notice of the proposed new Expiration Date is given to the other party hereto
in writing, and to each Holder of Securities of the relevant series in the
manner set forth in Section 106, on or prior to the existing Expiration Date.
If an Expiration Date is not designated with respect to any record date set
pursuant to this Section, the party hereto which set such record date shall be
deemed to have initially designated the 180th day after such record date as the
Expiration Date with respect thereto, subject to its right to change the
Expiration Date as provided in this paragraph. Notwithstanding the foregoing,
no Expiration Date shall be later than the 180th day after the applicable
record date.

          Without limiting the foregoing, a Holder entitled hereunder to take
any action hereunder with regard to any particular Security may do so with
regard to all or any part of the principal amount of such Security or by one or
more duly appointed agents each of which may do so pursuant to such appointment
with regard to all or any part of such principal amount.


SECTION 105.   Notices, Etc., to Trustee and Company.

          Any request, demand, authorization, direction, notice, consent,
waiver or Act of Holders or other document provided or permitted by this
Indenture to be made upon, given or furnished to, or filed with,

          (1)  the Trustee by any Holder or by the Company shall be sufficient
     for every purpose hereunder if made, given, furnished or filed in writing
     to or with the Trustee at its Corporate Trust Office, Attention: Corporate
     Trust Services Division, or

          (2)  the Company by the Trustee or by any Holder shall be sufficient
     for every purpose hereunder (unless otherwise herein expressly provided)
     if in writing and mailed, first-class postage prepaid, to the Company
     addressed to it at the address of





                                      -11-
<PAGE>   20
     its principal office specified in the first paragraph of this instrument
     or at any other address previously furnished in writing to the Trustee by
     the Company.


SECTION 106.   Notice to Holders; Waiver.

          Where this Indenture provides for notice to Holders of any event,
such notice shall be sufficiently given (unless otherwise herein expressly
provided) if in writing and mailed, first-class postage prepaid, to each Holder
affected by such event, at his address as it appears in the Security Register,
not later than the latest date (if any), and not earlier than the earliest date
(if any), prescribed for the giving of such notice. In any case where notice to
Holders is given by mail, neither the failure to mail such notice, nor any
defect in any notice so mailed, to any particular Holder shall affect the
sufficiency of such notice with respect to other Holders. Where this Indenture
provides for notice in any manner, such notice may be waived in writing by the
Person entitled to receive such notice, either before or after the event, and
such waiver shall be the equivalent of such notice.  Waivers of notice by
Holders shall be filed with the Trustee, but such filing shall not be a
condition precedent to the validity of any action taken in reliance upon such
waiver.

          In case by reason of the suspension of regular mail service or by
reason of any other cause it shall be impracticable to give such notice by
mail, then such notification as shall be made with the approval of the Trustee
shall constitute a sufficient notification for every purpose hereunder.


SECTION 107.   Conflict with Trust Indenture Act.

          If any provision hereof limits, qualifies or conflicts with a
provision of the Trust Indenture Act which is required under the Trust
Indenture Act to be a part of and govern this Indenture, the latter provision
shall control. If any provision of this Indenture modifies or excludes any
provision of the Trust Indenture Act which may be so modified or excluded, the
latter provision shall be deemed to apply to this Indenture as so modified or
to be excluded, as the case may be.


SECTION 108.   Effect of Headings and Table of Contents.

          The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.


SECTION 109.   Successors and Assigns.

          All covenants and agreements in this Indenture by the Company shall
bind its successors and assigns, whether so expressed or not.





                                      -12-
<PAGE>   21
SECTION 110.   Separability Clause.

          In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.


SECTION 111.   Benefits of Indenture.

          Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors
hereunder and the Holders, any benefit or any legal or equitable right, remedy
or claim under this Indenture.


SECTION 112.   Governing Law.

          This Indenture and the Securities shall be governed by and construed
in accordance with the law of the State of New York.


SECTION 113.   Legal Holidays.

          In any case where any Interest Payment Date, Redemption Date or
Stated Maturity of any Security shall not be a Business Day at any Place of
Payment, then (notwithstanding any other provision of this Indenture or of the
Securities (other than a provision of any Security which specifically states
that such provision shall apply in lieu of this Section)) payment of interest
or principal (and premium, if any) need not be made at such Place of Payment on
such date, but may be made on the next succeeding Business Day at such Place of
Payment with the same force and effect as if made on the Interest Payment Date
or Redemption Date, or at the Stated Maturity.


                                  ARTICLE TWO

                                 SECURITY FORMS


SECTION 201.   Forms Generally.

          The Securities of each series shall be in substantially the form set
forth in this Article, or in such other form as shall be established by or
pursuant to a Board Resolution or in one or more indentures supplemental
hereto, in each case with such appropriate insertions, omissions, substitutions
and other variations as are required or permitted by this Indenture, and may
have such letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may be required to comply with the rules of any
securities exchange or Depositary therefor or as may, consistently herewith, be
determined by the officers executing such Securities, as evidenced





                                      -13-
<PAGE>   22
by their execution thereof. If the form of Securities of any series is
established by action taken pursuant to a Board Resolution, a copy of an
appropriate record of such action shall be certified by the Secretary or an
Assistant Secretary of the Company and delivered to the Trustee at or prior to
the delivery of the Company Order contemplated by Section 303 for the
authentication and delivery of such Securities.

          The definitive Securities shall be printed, lithographed or engraved
on steel engraved borders or may be produced in any other manner, all as
determined by the officers executing such Securities, as evidenced by their
execution of such Securities.


SECTION 202.   Form of Face of Security.

          [Insert any legend required by the Internal Revenue Code and the
regulations thereunder.]

                           BECKMAN INSTRUMENTS, INC.

                          [Insert title of Securities]

No. _________                                                       $ ________

          Beckman Instruments, Inc., a corporation duly organized and existing
under the laws of the State of Delaware (herein called the "Company," which
term includes any successor Person under the Indenture hereinafter referred
to), for value received, hereby promises to pay to
___________________________________, or registered assigns, the principal sum
of __________________________________________ Dollars on
_____________________________________ [if the Security is to bear interest
prior to Maturity, insert -- , and to pay interest thereon from _________ or
from the most recent Interest Payment Date to which interest has been paid or
duly provided for, semi-annually on ________ and ________ in each year,
commencing _______, at the rate of ___% per annum, until the principal hereof
is paid or made available for payment [if applicable, insert -- , provided that
any principal and premium, and any such instalment of interest, which is
overdue shall bear interest at the rate of ___% per annum (to the extent that
the payment of such interest shall be legally enforceable), from the dates such
amounts are due until they are paid or made available for payment, and such
interest shall be payable on demand]. The interest so payable, and punctually
paid or duly provided for, on any Interest Payment Date will, as provided in
such Indenture, be paid to the Person in whose name this Security (or one or
more Predecessor Securities) is registered at the close of business on the
Regular Record Date for such interest, which shall be the _____ or _____
(whether or not a Business Day), as the case may be, next preceding such
Interest Payment Date. Any such interest not so punctually paid or duly
provided for will forthwith cease to be payable to the Holder on such Regular
Record Date and may either be paid to the Person in whose name this Security
(or one or more Predecessor Securities) is registered at the close of business
on a Special Record Date for the payment of such Defaulted Interest to be fixed
by the Trustee, notice whereof shall be given to Holders of Securities of this
series not less than 10 days prior to such Special Record





                                      -14-
<PAGE>   23
Date, or be paid at any time in any other lawful manner not inconsistent with
the requirements of any securities exchange on which the Securities of this
series may be listed, and upon such notice as may be required by such exchange,
all as more fully provided in said Indenture].

[If the Security is not to bear interest prior to Maturity, insert -- The
principal of this Security shall not bear interest except in the case of a
default in payment of principal upon acceleration, upon redemption or at Stated
Maturity and in such case the overdue principal and any overdue premium shall
bear interest at the rate of ___% per annum (to the extent that the payment of
such interest shall be legally enforceable), from the dates such amounts are
due until they are paid or made available for payment.  Interest on any overdue
principal or premium shall be payable on demand. [Any such interest on overdue
principal or premium which is not paid on demand shall bear interest at the
rate of _____% per annum (to the extent that the payment of such interest on
interest shall be legally enforceable), from the date of such demand until the
amount so demanded is paid or made available for payment.  Interest on any
overdue interest shall be payable on demand.]]

          Payment of the principal of (and premium, if any) and [if applicable,
insert -- any such] interest on this Security will be made at the office or
agency of the Company maintained for that purpose in __________, in such coin
or currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts [if applicable, insert -- ;
provided, however, that at the option of the Company payment of interest may be
made by check mailed to the address of the Person entitled thereto as such
address shall appear in the Security Register].

          Reference is hereby made to the further provisions of this Security
set forth on the reverse hereof, which further provisions shall for all
purposes have the same effect as if set forth at this place.





                                      -15-
<PAGE>   24
          Unless the certificate of authentication hereon has been executed by
the Trustee referred to on the reverse hereof by manual signature, this
Security shall not be entitled to any benefit under the Indenture or be valid
or obligatory for any purpose.

          IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed under its corporate seal.

Dated:

                                                   BECKMAN INSTRUMENTS, INC.


                                                   By________________________

Attest:
___________________________________




SECTION 203.   Form of Reverse of Security.

          This Security is one of a duly authorized issue of securities of the
Company (herein called the "Securities"),  issued and to be issued in one or
more series under an Indenture, dated as of ________, 1996 (herein called the
"Indenture," which term shall have the meaning assigned to it in such
instrument), between the Company and The First National Bank of Chicago, as
Trustee (herein called the "Trustee," which term includes any successor trustee
under the Indenture), and reference is hereby made to the Indenture for a
statement of the respective rights, limitations of rights, duties and
immunities thereunder of the Company, the Trustee and the Holders of the
Securities and of the terms upon which the Securities are, and are to be,
authenticated and delivered. This Security is one of the series designated on
the face hereof [if applicable, insert -- , limited in aggregate principal
amount to $_______].

          [If applicable, insert -- Subject to and upon compliance with the
provisions of the Indenture, the Holder of this Security is entitled, at his
option, at any time on or before the close of business on _________________ or
in case this Security or a portion hereof is called for redemption, then in
respect of this Security or such portion hereof until and including, but
(unless the Company defaults in making the payment due upon redemption) not
after, the close of business on the Redemption Date, to convert this Security
(or any portion of the principal amount hereof which is $1,000 or an integral
multiple thereof), at the principal amount hereof, or of such portion, into
fully paid and non-assessable shares (calculated as to each conversion to the
nearest 1/100 of a share) of Common Stock of the Company at a Conversion Price
of $_________ per share of Common Stock (or at the current adjusted Conversion
Price if an adjustment has been made as provided in the Indenture) by surrender
of this Security, duly endorsed or assigned to the Company or in blank, to the
Company at its office or agency in the City





                                      -16-
<PAGE>   25
of ____________, or in the City of _______________, accompanied by written
notice to the Company that the Holder hereof elects to convert this Security,
or if less than the entire principal amount hereof is to be converted, the
portion hereof to be converted, and, in case such surrender shall be made
during the period from the close of business on any Regular Record Date next
preceding any Interest Payment Date to the opening of business on such Interest
Payment Date (unless this Security or the portion thereof being converted has
been called for redemption on a Redemption Date within such period), also
accompanied by payment in New York Clearing House or other funds acceptable to
the Company of an amount equal to the interest payable on such Interest Payment
Date on the principal amount of this Security then being converted. Subject to
the aforesaid requirement for payment and, in the case of a conversion after
the Regular Record Date next preceding any Interest Payment Date and on or
before such Interest Payment Date, to the right of the Holder of this Security
(or any Predecessor Security) of record at such Regular Record Date to receive
an instalment of interest (with certain exceptions provided in the Indenture),
no payment or adjustment is to be made on conversion for interest accrued
hereon or for dividends on the Common Stock issued on conversion. No fractional
shares or scrip representing fractional shares of Common Stock will be issued
on conversion, but instead of any fractional interest the Company shall pay a
cash adjustment as provided in the Indenture. The Conversion Price is subject
to adjustment as provided in the Indenture. In addition, the Indenture provides
that in case of certain consolidations or mergers to which the Company is a
party or the sale or transfer of all or substantially all of the assets of the
Company, the Indenture shall be amended, without the consent of any Holders of
Securities, so that this Security, if then outstanding, will be convertible
thereafter, during the period this Security shall be convertible as specified
above, only into the kind and amount of securities, cash and other property
receivable upon the consolidation, merger, sale or transfer by a holder of the
number of shares of Common Stock of the Company into which this Security might
have been converted immediately prior to such consolidation, merger, sale or
transfer, assuming such holder of Common Stock of the Company failed to
exercise his rights of election, if any, as to the kind or amount of
securities, cash and other property receivable upon such consolidation, merger,
sale or transfer (provided that if the kind or amount of securities, cash and
other property so receivable is not the same for each non-electing share of
Common Stock of the Company, then the kind and amount of securities, cash and
other property so receivable by each non-electing share shall be deemed to be
the kind and amount so receivable per share by a plurality of the non-electing
shares).]

          [If applicable, insert -- The Securities of this series are subject
to redemption upon not less than 30 days' notice by mail, [if applicable,
insert -- (1) on _______ in any year commencing with the year _____ and ending
with the year _____ through operation of the sinking fund for this series at a
Redemption Price equal to 100% of the principal amount, and (2)] at any time
[if applicable, insert -- on or after _____, 19___], as a whole or in part, at
the election of the Company, at the following Redemption Prices (expressed as
percentages of the principal amount): If redeemed [if applicable, insert --





                                      -17-
<PAGE>   26
on or before __________, ___%, and if redeemed] during the 12-month period
beginning ________ of the years indicated,

<TABLE>
<CAPTION>
                     Redemption                                Redemption
 Year                  Price                 Year                Price    
 ----                ----------              ----              ----------
<S>                  <C>                     <C>               <C>
</TABLE>



and thereafter at a Redemption Price equal to ___% of the principal amount,
together in the case of any such redemption [if applicable, insert -- (whether
through operation of the sinking fund or otherwise)] with accrued interest to
the Redemption Date, but interest installments whose Stated Maturity is on or
prior to such Redemption Date will be payable to the Holders of such
Securities, or one or more Predecessor Securities, of record at the close of
business on the relevant Record Dates referred to on the face hereof, all as
provided in the Indenture.]

          [If applicable, insert -- The Securities of this series are subject
to redemption upon not less than 30 days' notice by mail, (1) on __________ in
any year commencing with the year ___ and ending with the year ___ through
operation of the sinking fund for this series at the Redemption Prices for
redemption through operation of the sinking fund (expressed as percentages of
the principal amount) set forth in the table below, and (2) at any time [if
applicable, insert -- on or after ________], as a whole or in part, at the
election of the Company, at the Redemption Prices for redemption otherwise than
through operation of the sinking fund (expressed as percentages of the
principal amount) set forth in the table below: If redeemed during the 12-month
period beginning _________ of the years indicated,


<TABLE>
<CAPTION>
                     Redemption Price                  Redemption Price For
                      For Redemption                   Redemption Otherwise
                   Through Operation of               Than Through Operation
 Year                the Sinking Fund                   of the Sinking Fund   
 ----             -----------------------            -------------------------
 <S>              <C>                                <C>   
</TABLE>




and thereafter at a Redemption Price equal to ___% of the principal amount,
together in the case of any such redemption (whether through operation of the
sinking fund or other-





                                      -18-
<PAGE>   27
wise) with accrued interest to the Redemption Date, but interest installments
whose Stated Maturity is on or prior to such Redemption Date will be payable to
the Holders of such Securities, or one or more Predecessor Securities, of
record at the close of business on the relevant Record Dates referred to on the
face hereof, all as provided in the Indenture.]

          [If applicable, insert -- Notwithstanding the foregoing, the Company
may not, prior to _________, redeem any Securities of this series as
contemplated by [if applicable, insert -- Clause (2) of] the preceding
paragraph as a part of, or in anticipation of, any refunding operation by the
application, directly or indirectly, of moneys borrowed having an interest cost
to the Company (calculated in accordance with generally accepted financial
practice) of less than ____% per annum.]

          [If applicable, insert -- The sinking fund for this series provides
for the redemption on _______ in each year beginning with the year ______ and
ending with the year _____ of [if applicable, insert -- not less than $_______
("mandatory sinking fund") and not more than] $______ aggregate principal
amount of Securities of this series. Securities of this series acquired or
redeemed by the Company otherwise than through [if applicable, insert --
mandatory] sinking fund payments may be credited against subsequent [if
applicable, insert -- mandatory] sinking fund payments otherwise required to be
made [if applicable, insert -- , in the inverse order in which they become
due].]

          [If the Security is subject to redemption of any kind, insert -- In
the event of redemption of this Security in part only, a new Security or
Securities of this series and of like tenor for the unredeemed portion hereof
will be issued in the name of the Holder hereof upon the cancellation hereof.]

          [If applicable, insert -- The Indenture contains provisions for
defeasance at any time of [the entire indebtedness of this Security] [or]
[certain restrictive covenants and Events of Default with respect to this
Security] [, in each case] upon compliance with certain conditions set forth in
the Indenture.]

          [If the Security is not an Original Issue Discount Security, insert
- -- If an Event of Default with respect to Securities of this series shall occur
and be continuing, the principal of the Securities of this series may be
declared due and payable in the manner and with the effect provided in the
Indenture.]

          [If the Security is an Original Issue Discount Security, insert -- If
an Event of Default with respect to Securities of this series shall occur and
be continuing, an amount of principal of the Securities of this series may be
declared due and payable in the manner and with the effect provided in the
Indenture. Such amount shall be equal to -- insert formula for determining the
amount. Upon payment (i) of the amount of principal so declared due and payable
and (ii) of interest on any overdue principal, premium and interest (in each
case to the extent that the payment of such interest shall be legally
enforceable), all of the Company's obligations in respect of the payment of the
principal of and premium and interest, if any, on the Securities of this series
shall terminate.]





                                      -19-
<PAGE>   28
          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities of each series to be
affected under the Indenture at any time by the Company and the Trustee with
the consent of the Holders of at least a majority in principal amount of the
Securities at the time Outstanding of each series to be affected. The Indenture
also contains provisions permitting the Holders of specified percentages in
principal amount of the Securities of each series at the time Outstanding, on
behalf of the Holders of all Securities of such series, to waive compliance by
the Company with certain provisions of the Indenture and certain past defaults
under the Indenture and their consequences. Any such consent or waiver by the
Holder of this Security shall be conclusive and binding upon such Holder and
upon all future Holders of this Security and of any Security issued upon the
registration of transfer hereof or in exchange herefor or in lieu hereof,
whether or not notation of such consent or waiver is made upon this Security.

          As provided in and subject to the provisions of the Indenture, the
Holder of this Security shall not have the right to institute any proceeding
with respect to the Indenture or for the appointment of a receiver or trustee
or for any other remedy thereunder, unless such Holder shall have previously
given the Trustee written notice of a continuing Event of Default with respect
to the Securities of this series, the Holders of not less than 25% in principal
amount of the Securities of this series at the time Outstanding shall have made
written request to the Trustee to institute proceedings in respect of such
Event of Default as Trustee and offered the Trustee reasonable indemnity, and
the Trustee shall not have received from the Holders of a majority in principal
amount of Securities of this series at the time Outstanding a direction
inconsistent with such request, and shall have failed to institute any such
proceeding, for 60 days after receipt of such notice, request and offer of
indemnity. The foregoing shall not apply to any suit instituted by the Holder
of this Security for the enforcement of any payment of principal hereof or any
premium or interest hereon on or after the respective due dates expressed
herein.

          No reference herein to the Indenture and no provision of this
Security or of the Indenture shall alter or impair the obligation of the
Company, which is absolute and unconditional, to pay the principal of and any
premium and interest on this Security at the times, place and rate, and in the
coin or currency, herein prescribed.

          As provided in the Indenture and subject to certain limitations
therein set forth, the transfer of this Security is registrable in the Security
Register, upon surrender of this Security for registration of transfer at the
office or agency of the Company in any place where the principal of and any
premium and interest on this Security are payable, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Company and the Security Registrar duly executed by, the Holder hereof or his
attorney duly authorized in writing, and thereupon one or more new Securities
of this series and of like tenor, of authorized denominations and for the same
aggregate principal amount, will be issued to the designated transferee or
transferees.





                                      -20-
<PAGE>   29
          The Securities of this series are issuable only in registered form
without coupons in denominations of $_______ and any integral multiple thereof.
As provided in the Indenture and subject to certain limitations therein set
forth, Securities of this series are exchangeable for a like aggregate
principal amount of Securities of this series and of like tenor of a different
authorized denomination, as requested by the Holder surrendering the same.

          No service charge shall be made for any such registration of transfer
or exchange, but the Company may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.

          Prior to due presentment of this Security for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name this Security is registered as the owner
hereof for all purposes, whether or not this Security be overdue, and neither
the Company, the Trustee nor any such agent shall be affected by notice to the
contrary.

          All terms used in this Security which are defined in the Indenture
shall have the meanings assigned to them in the Indenture.


SECTION 204.   Form of Legend for Global Securities.

          Unless otherwise specified as contemplated by Section 301 for the
Securities evidenced thereby, every Global Security authenticated and delivered
hereunder shall bear a legend in substantially the following form:

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE
HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A
NOMINEE THEREOF. THIS SECURITY MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A
SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY
BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A
NOMINEE THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE
INDENTURE.





                                      -21-
<PAGE>   30
SECTION 205.   Form of Trustee's Certificate of Authentication.

          The Trustee's certificates of authentication shall be in
substantially the following form:

          This is one of the Securities of the series designated therein
referred to in the within-mentioned Indenture.


                                             THE FIRST NATIONAL BANK OF CHICAGO,
                                                                      As Trustee


                                              By________________________________
                                                              Authorized Officer


                                 ARTICLE THREE

                                 THE SECURITIES


SECTION 301.   Amount Unlimited; Issuable in Series.

          The aggregate principal amount of Securities which may be
authenticated and delivered under this Indenture is unlimited.

          The Securities may be issued in one or more series. There shall be
established in or pursuant to a Board Resolution and, subject to Section 303,
set forth, or determined in the manner provided, in an Officers' Certificate,
or established in one or more indentures supplemental hereto, prior to the
issuance of Securities of any series,

          (1)  the title of the Securities of the series (which shall
     distinguish the Securities of the series from Securities of any other
     series);

          (2)  any limit upon the aggregate principal amount of the Securities
     of the series which may be authenticated and delivered under this
     Indenture (except for Securities authenticated and delivered upon
     registration of transfer of, or in exchange for, or in lieu of, other
     Securities of the series pursuant to Section 304, 305, 306, 906 or 1107
     and except for any Securities which, pursuant to Section 303, are deemed
     never to have been authenticated and delivered hereunder);

          (3)  the Person to whom any interest on a Security of the series
     shall be payable, if other than the Person in whose name that Security (or
     one or more Predecessor Securities) is registered at the close of business
     on the Regular Record Date for such interest;





                                      -22-
<PAGE>   31
          (4)  the date or dates on which the principal of any Securities of
     the series is payable;

          (5)  the rate or rates at which any Securities of the series shall
     bear interest, if any, the date or dates from which any such interest
     shall accrue, the Interest Payment Dates on which any such interest shall
     be payable and the Regular Record Date for any such interest payable on
     any Interest Payment Date;

          (6)  the place or places where the principal of and any premium and
     interest on any Securities of the series shall be payable;

          (7)  the period or periods within which, the price or prices at which
     and the terms and conditions upon which any Securities of the series may
     be redeemed, in whole or in part, at the option of the Company and, if
     other than by a Board Resolution, the manner in which any election by the
     Company to redeem the Securities shall be evidenced;

          (8)  the obligation, if any, of the Company to redeem or purchase any
     Securities of the series pursuant to any sinking fund or analogous
     provisions or at the option of the Holder thereof and the period or
     periods within which, the price or prices at which and the terms and
     conditions upon which any Securities of the series shall be redeemed or
     purchased, in whole or in part, pursuant to such obligation;

          (9)  if other than denominations of $1,000 and any integral multiple
     thereof, the denominations in which any Securities of the series shall be
     issuable;

         (10)  if the amount of principal of or any premium or interest on any
     Securities of the series may be determined with reference to an index or
     pursuant to a formula, the manner in which such amounts shall be
     determined;

         (11)  if other than the currency of the United States of America, the
     currency, currencies or currency units in which the principal of or any
     premium or interest on any Securities of the series shall be payable and
     the manner of determining the equivalent thereof in the currency of the
     United States of America for any purpose, including for purposes of the
     definition of "Outstanding" in Section 101;

         (12)  if the principal of or any premium or interest on any Securities
     of the series is to be payable, at the election of the Company or the
     Holder thereof, in one or more currencies or currency units other than
     that or those in which such Securities are stated to be payable, the
     currency, currencies or currency units in which the principal of or any
     premium or interest on such Securities as to which such election is made
     shall be payable, the periods within which and the terms and conditions
     upon which such election is to be made and the amount so payable (or the
     manner in which such amount shall be determined);





                                      -23-
<PAGE>   32
         (13)  if other than the entire principal amount thereof, the portion
     of the principal amount of any Securities of the series which shall be
     payable upon declaration of acceleration of the Maturity thereof pursuant
     to Section 502;

         (14)  if the principal amount payable at the Stated Maturity of any
     Securities of the series will not be determinable as of any one or more
     dates prior to the Stated Maturity, the amount which shall be deemed to be
     the principal amount of such Securities as of any such date for any
     purpose thereunder or hereunder, including the principal amount thereof
     which shall be due and payable upon any Maturity other than the Stated
     Maturity or which shall be deemed to be Outstanding as of any date prior
     to the Stated Maturity (or, in any such case, the manner in which such
     amount deemed to be the principal amount shall be determined);

         (15)  if applicable, that the Securities of the series, in whole or
     any specified part, shall be defeasible pursuant to Section 1402 or
     Section 1403 or both such Sections and, if other than by a Board
     Resolution, the manner in which any election by the Company to defease
     such Securities shall be evidenced;

         (16)  if applicable, that any Securities of the series shall be
     issuable in whole or in part in the form of one or more Global Securities
     and, in such case, the respective Depositaries for such Global Securities,
     the form of any legend or legends which shall be borne by any such Global
     Security in addition to or in lieu of that set forth in Section 204 and
     any circumstances in addition to or in lieu of those set forth in Clause
     (2) of the last paragraph of Section 305 in which any such Global Security
     may be exchanged in whole or in part for Securities registered, and any
     transfer of such Global Security in whole or in part may be registered, in
     the name or names of Persons other than the Depositary for such Global
     Security or a nominee thereof;

         (17)  if applicable, that the Securities of the series shall be
     convertible as provided in Article Twelve;

         (18)  any addition to or change in the Events of Default which applies
     to any Securities of the series and any change in the right of the Trustee
     or the requisite Holders of such Securities to declare the principal
     amount thereof due and payable pursuant to Section 502;

         (19)  any addition to or change in the covenants set forth in Article
     Ten which applies to Securities of the series; and

         (20)  any other terms of the series (which terms shall not be
     inconsistent with the provisions of this Indenture, except as permitted by
     Section 901(5)).

          All Securities of any one series shall be substantially identical
except as to denomination and except as may otherwise be provided in or
pursuant to the Board Resolution referred to above and (subject to Section 303)
set forth, or determined in the manner provided, in the Officers' Certificate
referred to above or in any such indenture supplemental hereto.





                                      -24-
<PAGE>   33
          If any of the terms of the series are established by action taken
pursuant to a Board Resolution, a copy of an appropriate record of such action
shall be certified by the Secretary or an Assistant Secretary of the Company
and delivered to the Trustee at or prior to the delivery of the Officers'
Certificate setting forth the terms of the series.


SECTION 302.   Denominations.

          The Securities of each series shall be issuable only in registered
form without coupons and only in such denominations as shall be specified as
contemplated by Section 301. In the absence of any such specified denomination
with respect to the Securities of any series, the Securities of such series
shall be issuable in denominations of $1,000 and any integral multiple thereof.


SECTION 303.   Execution, Authentication, Delivery and Dating.

          The Securities shall be executed on behalf of the Company by its
Chairman of the Board, its Vice Chairman of the Board, its President or one of
its Vice Presidents, under its corporate seal reproduced thereon attested by
its Secretary or one of its Assistant Secretaries. The signature of any of
these officers on the Securities may be manual or facsimile.

          Securities bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the authentication and delivery of such Securities or did not
hold such offices at the date of such Securities.

          At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities of any series executed by
the Company to the Trustee for authentication, together with a Company Order
for the authentication and delivery of such Securities, and the Trustee in
accordance with the Company Order shall authenticate and deliver such
Securities. If the form or terms of the Securities of the series have been
established by or pursuant to one or more Board Resolutions as permitted by
Sections 201 and 301, in authenticating such Securities, and accepting the
additional responsibilities under this Indenture in relation to such
Securities, the Trustee shall be entitled to receive, and (subject to Section
601) shall be fully protected in relying upon, an Opinion of Counsel stating,

          (1)  if the form of such Securities has been established by or
     pursuant to Board Resolution as permitted by Section 201, that such form
     has been established in conformity with the provisions of this Indenture;

          (2)  if the terms of such Securities have been established by or
     pursuant to Board Resolution as permitted by Section 301, that such terms
     have been established in conformity with the provisions of this Indenture;
     and





                                      -25-
<PAGE>   34
          (3)  that such Securities, when authenticated and delivered by the
     Trustee and issued by the Company in the manner and subject to any
     conditions specified in such Opinion of Counsel, will constitute valid and
     legally binding obligations of the Company enforceable in accordance with
     their terms, subject to bankruptcy, insolvency, fraudulent transfer,
     reorganization, moratorium and similar laws of general applicability
     relating to or affecting creditors' rights and to general equity
     principles.

If such form or terms have been so established, the Trustee shall not be
required to authenticate such Securities if the issue of such Securities
pursuant to this Indenture will affect the Trustee's own rights, duties or
immunities under the Securities and this Indenture or otherwise in a manner
which is not reasonably acceptable to the Trustee.

          Notwithstanding the provisions of Section 301 and of the preceding
paragraph, if all Securities of a series are not to be originally issued at one
time, it shall not be necessary to deliver the Officers' Certificate otherwise
required pursuant to Section 301 or the Company Order and Opinion of Counsel
otherwise required pursuant to such preceding paragraph at or prior to the
authentication of each Security of such series if such documents are delivered
at or prior to the authentication upon original issuance of the first Security
of such series to be issued.

          Each Security shall be dated the date of its authentication.

          No Security shall be entitled to any benefit under this Indenture or
be valid or obligatory for any purpose unless there appears on such Security a
certificate of authentication substantially in the form provided for herein
executed by the Trustee by manual signature, and such certificate upon any
Security shall be conclusive evidence, and the only evidence, that such
Security has been duly authenticated and delivered hereunder. Notwithstanding
the foregoing, if any Security shall have been authenticated and delivered
hereunder but never issued and sold by the Company, and the Company shall
deliver such Security to the Trustee for cancellation as provided in Section
309, for all purposes of this Indenture such Security shall be deemed never to
have been authenticated and delivered hereunder and shall never be entitled to
the benefits of this Indenture.


SECTION 304.   Temporary Securities.

          Pending the preparation of definitive Securities of any series, the
Company may execute, and upon Company Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten,
mimeographed or otherwise produced, in any authorized denomination,
substantially of the tenor of the definitive Securities in lieu of which they
are issued and with such appropriate insertions, omissions, substitutions and
other variations as the officers executing such Securities may determine, as
evidenced by their execution of such Securities.





                                      -26-
<PAGE>   35
          If temporary Securities of any series are issued, the Company will
cause definitive Securities of that series to be prepared without unreasonable
delay. After the preparation of definitive Securities of such series, the
temporary Securities of such series shall be exchangeable for definitive
Securities of such series upon surrender of the temporary Securities of such
series at the office or agency of the Company in a Place of Payment for that
series, without charge to the Holder. Upon surrender for cancellation of any
one or more temporary Securities of any series, the Company shall execute and
the Trustee shall authenticate and deliver in exchange therefor one or more
definitive Securities of the same series, of any authorized denominations and
of like tenor and aggregate principal amount. Until so exchanged, the temporary
Securities of any series shall in all respects be entitled to the same benefits
under this Indenture as definitive Securities of such series and tenor.


SECTION 305.   Registration, Registration of Transfer and Exchange.

          The Company shall cause to be kept at the Corporate Trust Office of
the Trustee a register (the register  maintained in such office and in any
other office or agency of the Company in a Place of Payment being herein
sometimes collectively referred to as the "Security Register") in which,
subject to such reasonable regulations as it may prescribe, the Company shall
provide for the registration of Securities and of transfers of Securities. The
Trustee is hereby appointed "Security Registrar" for the purpose of registering
Securities and transfers of Securities as herein provided.

          Upon surrender for registration of transfer of any Security of a
series at the office or agency of the Company in a Place of Payment for that
series, the Company shall execute, and the Trustee shall authenticate and
deliver, in the name of the designated transferee or transferees, one or more
new Securities of the same series, of any authorized denominations and of like
tenor and aggregate principal amount.

          At the option of the Holder, Securities of any series may be
exchanged for other Securities of the same series, of any authorized
denominations and of like tenor and aggregate principal amount, upon surrender
of the Securities to be exchanged at such office or agency. Whenever any
Securities are so surrendered for exchange, the Company shall execute, and the
Trustee shall authenticate and deliver, the Securities which the Holder making
the exchange is entitled to receive.

          All Securities issued upon any registration of transfer or exchange
of Securities shall be the valid obligations of the Company, evidencing the
same debt, and entitled to the same benefits under this Indenture, as the
Securities surrendered upon such registration of transfer or exchange.

          Every Security presented or surrendered for registration of transfer
or for exchange shall (if so required by the Company or the Trustee) be duly
endorsed, or be accompanied by a written instrument of transfer in form
satisfactory to the Company and the Security Registrar duly executed, by the
Holder thereof or his attorney duly authorized in writing.





                                      -27-
<PAGE>   36
          No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than
exchanges pursuant to Section 304, 906 or 1107 not involving any transfer.

          If the Securities of any series (or of any series and specified
tenor) are to be redeemed in part, the Company shall not be required (A) to
issue, register the transfer of or exchange any Securities of that series (or
of that series and specified tenor, as the case may be) during a period
beginning at the opening of business 15 days before the day of the mailing of a
notice of redemption of any such Securities selected for redemption under
Section 1103 and ending at the close of business on the day of such mailing, or
(B) to register the transfer of or exchange any Security so selected for
redemption in whole or in part, except the unredeemed portion of any Security
being redeemed in part.

          The provisions of Clauses (1), (2), (3) and (4) below shall apply
only to Global Securities:

          (1)  Each Global Security authenticated under this Indenture shall be
     registered in the name of the Depositary designated for such Global
     Security or a nominee thereof and delivered to such Depositary or a
     nominee thereof or custodian therefor, and each such Global Security shall
     constitute a single Security for all purposes of this Indenture.

          (2)  Notwithstanding any other provision in this Indenture, no Global
     Security may be exchanged in whole or in part for Securities registered,
     and no transfer of a Global Security in whole or in part may be
     registered, in the name of any Person other than the Depositary for such
     Global Security or a nominee thereof unless (A) such Depositary (i) has
     notified the Company that it is unwilling or unable to continue as
     Depositary for such Global Security or (ii) has ceased to be a clearing
     agency registered under the Exchange Act, (B) there shall have occurred
     and be continuing an Event of Default with respect to such Global Security
     or (C) there shall exist such circumstances, if any, in addition to or in
     lieu of the foregoing as have been specified for this purpose as
     contemplated by Section 301.

          (3)  Subject to Clause (2) above, any exchange of a Global Security
     for other Securities may be made in whole or in part, and all Securities
     issued in exchange for a Global Security or any portion thereof shall be
     registered in such names as the Depositary for such Global Security shall
     direct.

          (4)  Every Security authenticated and delivered upon registration of
     transfer of, or in exchange for or in lieu of, a Global Security or any
     portion thereof, whether pursuant to this Section, Section 304, 306, 906
     or 1107 or otherwise, shall be authenticated and delivered in the form of,
     and shall be, a Global Security, unless such Security is registered in the
     name of a Person other than the Depositary for such Global Security or a
     nominee thereof.





                                      -28-
<PAGE>   37
SECTION 306.   Mutilated, Destroyed, Lost and Stolen Securities.

          If any mutilated Security is surrendered to the Trustee, the Company
shall execute and the Trustee shall authenticate and deliver in exchange
therefor a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

          If there shall be delivered to the Company and the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any
Security and (ii) such security or indemnity as may be required by them to save
each of them and any agent of either of them harmless, then, in the absence of
notice to the Company or the Trustee that such Security has been acquired by a
bona fide purchaser, the Company shall execute and the Trustee shall
authenticate and deliver, in lieu of any such destroyed, lost or stolen
Security, a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

          In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company in its discretion
may, instead of issuing a new Security, pay such Security.

          Upon the issuance of any new Security under this Section, the Company
may require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in relation thereto and any other
expenses (including the fees and expenses of the Trustee) connected therewith.

          Every new Security of any series issued pursuant to this Section in
lieu of any destroyed, lost or stolen Security shall constitute an original
additional contractual obligation of the Company, whether or not the destroyed,
lost or stolen Security shall be at any time enforceable by anyone, and shall
be entitled to all the benefits of this Indenture equally and proportionately
with any and all other Securities of that series duly issued hereunder.

          The provisions of this Section are exclusive and shall preclude (to
the extent lawful) all other rights and remedies with respect to the
replacement or payment of mutilated, destroyed, lost or stolen Securities.


SECTION 307.   Payment of Interest; Interest Rights Preserved.

          Except as otherwise provided as contemplated by Section 301 with
respect to any series of Securities, interest on any Security which is payable,
and is punctually paid or duly provided for, on any Interest Payment Date shall
be paid to the Person in whose name that Security (or one or more Predecessor
Securities) is registered at the close of business on the Regular Record Date
for such interest.





                                      -29-
<PAGE>   38
          Any interest on any Security of any series which is payable, but is
not punctually paid or duly provided for, on any Interest Payment Date (herein
called "Defaulted Interest") shall forthwith cease to be payable to the Holder
on the relevant Regular Record Date by virtue of having been such Holder, and
such Defaulted Interest may be paid by the Company, at its election in each
case, as provided in Clause (1) or (2) below:

               (1)  The Company may elect to make payment of any Defaulted
          Interest to the Persons in whose names the Securities of such series
          (or their respective Predecessor Securities) are registered at the
          close of business on a Special Record Date for the payment of such
          Defaulted Interest, which shall be fixed in the following manner. The
          Company shall notify the Trustee in writing of the amount of
          Defaulted Interest proposed to be paid on each Security of such
          series and the date of the proposed payment, and at the same time the
          Company shall deposit with the Trustee an amount of money equal to
          the aggregate amount proposed to be paid in respect of such Defaulted
          Interest or shall make arrangements satisfactory to the Trustee for
          such deposit prior to the date of the proposed payment, such money
          when deposited to be held in trust for the benefit of the Persons
          entitled to such Defaulted Interest as in this Clause provided.
          Thereupon the Trustee shall fix a Special Record Date for the payment
          of such Defaulted Interest which shall be not more than 15 days and
          not less than 10 days prior to the date of the proposed payment and
          not less than 10 days after the receipt by the Trustee of the notice
          of the proposed payment. The Trustee shall promptly notify the
          Company of such Special Record Date and, in the name and at the
          expense of the Company, shall cause notice of the proposed payment of
          such Defaulted Interest and the Special Record Date therefor to be
          given to each Holder of Securities of such series in the manner set
          forth in Section 106, not less than 10 days prior to such Special
          Record Date. Notice of the proposed payment of such Defaulted
          Interest and the Special Record Date therefor having been so mailed,
          such Defaulted Interest shall be paid to the Persons in whose names
          the Securities of such series (or their respective Predecessor
          Securities) are registered at the close of business on such Special
          Record Date and shall no longer be payable pursuant to the following
          Clause (2).

               (2)  The Company may make payment of any Defaulted Interest on
          the Securities of any series in any other lawful manner not
          inconsistent with the requirements of any securities exchange on
          which such Securities may be listed, and upon such notice as may be
          required by such exchange, if, after notice given by the Company to
          the Trustee of the proposed payment pursuant to this Clause, such
          manner of payment shall be deemed practicable by the Trustee.

          Subject to the foregoing provisions of this Section, each Security
delivered under this Indenture upon registration of transfer of or in exchange
for or in lieu of any other Security shall carry the rights to interest accrued
and unpaid, and to accrue, which were carried by such other Security.





                                      -30-
<PAGE>   39
          In the case of any Security that is converted after any Regular
Record Date and on or prior to the next succeeding Interest Payment Date (other
than any Security whose Maturity is prior to such Interest Payment Date),
interest shall be payable on such Interest Payment Date notwithstanding such
conversion, and such interest (whether or not punctually paid or duly provided
for) shall be paid to the Person in whose name that Security (or one or more
Predecessor Securities) is registered at the close of business on such Regular
Record Date. Except as otherwise expressly provided in the immediately
preceding sentence, in the case of any Security that is converted, interest
after the date of conversion of such Security shall not be payable.


SECTION 308.   Persons Deemed Owners.

          Prior to due presentment of a Security for registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat
the Person in whose name such Security is registered as the owner of such
Security for the purpose of receiving payment of principal of and any premium
and (subject to Section 307) any interest on such Security and for all other
purposes whatsoever, whether or not such Security be overdue, and neither the
Company, the Trustee nor any agent of the Company or the Trustee shall be
affected by notice to the contrary.


SECTION 309.   Cancellation.

          All Securities surrendered for payment, redemption, registration of
transfer or exchange or for credit against any sinking fund payment shall, if
surrendered to any Person other than the Trustee, be delivered to the Trustee
and shall be promptly cancelled by it. The Company may at any time deliver to
the Trustee for cancellation any Securities previously authenticated and
delivered hereunder which the Company may have acquired in any manner
whatsoever, and may deliver to the Trustee (or to any other Person for delivery
to the Trustee) for cancellation any Securities previously authenticated
hereunder which the Company has not issued and sold, and all Securities so
delivered shall be promptly cancelled by the Trustee. No Securities shall be
authenticated in lieu of or in exchange for any Securities cancelled as
provided in this Section, except as expressly permitted by this Indenture. All
cancelled Securities held by the Trustee shall be disposed of as directed by a
Company Order.


SECTION 310.   Computation of Interest.

          Except as otherwise specified as contemplated by Section 301 for
Securities of any series, interest on the Securities of each series shall be
computed on the basis of a 360-day year of twelve 30-day months.





                                      -31-
<PAGE>   40
                                  ARTICLE FOUR

                           SATISFACTION AND DISCHARGE


SECTION 401.   Satisfaction and Discharge of Indenture.

          This Indenture shall upon Company Request cease to be of further
effect (except as to any surviving rights of registration of transfer or
exchange of Securities herein expressly provided for), and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture, when

          (1)  either

               (A)  all Securities theretofore authenticated and delivered
          (other than (i) Securities which have been destroyed, lost or stolen
          and which have been replaced or paid as provided in Section 306 and
          (ii) Securities for whose payment money has theretofore been
          deposited in trust or segregated and held in trust by the Company and
          thereafter repaid to the Company or discharged from such trust, as
          provided in Section 1003) have been delivered to the Trustee for
          cancellation; or

              (B)  all such Securities not theretofore delivered to the Trustee
          for cancellation

                      (i)  have become due and payable, or

                     (ii)  will become due and payable at their Stated Maturity
               within one year, or

                    (iii)  are to be called for redemption within one year
               under arrangements satisfactory to the Trustee for the giving of
               notice of redemption by the Trustee in the name, and at the
               expense, of the Company,

          and the Company, in the case of (i), (ii) or (iii) above, has
          deposited or caused to be deposited with the Trustee as trust funds
          in trust for the purpose money in an amount sufficient to pay and
          discharge the entire indebtedness on such Securities not theretofore
          delivered to the Trustee for cancellation, for principal and any
          premium and interest to the date of such deposit (in the case of
          Securities which have become due and payable) or to the Stated
          Maturity or Redemption Date, as the case may be;

          (2)  the Company has paid or caused to be paid all other sums payable
     hereunder by the Company; and





                                      -32-
<PAGE>   41
          (3)  the Company has delivered to the Trustee an Officers'
     Certificate and an Opinion of Counsel, each stating that all conditions
     precedent herein provided for relating to the satisfaction and discharge
     of this Indenture have been complied with.

          Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 607, the obligations of
the Trustee to any Authenticating Agent under Section 614 and, if money shall
have been deposited with the Trustee pursuant to subclause (B) of Clause (1) of
this Section, the obligations of the Trustee under Section 402 and the last
paragraph of Section 1003 shall survive.


SECTION 402.   Application of Trust Money.

          Subject to the provisions of the last paragraph of Section 1003, all
money deposited with the Trustee pursuant to Section 401 shall be held in trust
and applied by it, in accordance with the provisions of the Securities and this
Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may
determine, to the Persons entitled thereto, of the principal and any premium
and interest for whose payment such money has been deposited with the Trustee.


                                  ARTICLE FIVE

                                    REMEDIES


SECTION 501.   Events of Default.

          "Event of Default," wherever used herein with respect to Securities
of any series, means any one of the following events (whatever the reason for
such Event of Default and whether it shall be voluntary or involuntary or be
effected by operation of law or pursuant to any judgment, decree or order of
any court or any order, rule or regulation of any administrative or
governmental body):

          (1)  default in the payment of any interest upon any Security of that
     series when it becomes due and payable, and continuance of such default
     for a period of 30 days; or

          (2)  default in the payment of the principal of or any premium on any
     Security of that series at its Maturity; or

          (3)  default in the deposit of any sinking fund payment, when and as
     due by the terms of a Security of that series; or





                                      -33-
<PAGE>   42
          (4)  default in the performance, or breach, of any covenant or
     warranty of the Company in this Indenture (other than a covenant or
     warranty a default in whose performance or whose breach is elsewhere in
     this Section specifically dealt with or which has expressly been included
     in this Indenture solely for the benefit of series of Securities other
     than that series), and continuance of such default or breach for a period
     of 60 days after there has been given, by registered or certified mail, to
     the Company by the Trustee or to the Company and the Trustee by the
     Holders of at least 25% in principal amount of the Outstanding Securities
     of that series a written notice specifying such default or breach and
     requiring it to be remedied and stating that such notice is a "Notice of
     Default" hereunder; or

          (5)  a default under any bond, debenture, note or other evidence of
     indebtedness for money borrowed by the Company (including a default with
     respect to Securities of any series other than that series) having an
     aggregate principal amount outstanding of at least $15,000,000, or under
     any mortgage, indenture or instrument (including this Indenture) under
     which there may be issued or by which there may be secured or evidenced
     any indebtedness for money borrowed by the Company having an aggregate
     principal amount outstanding of at least $15,000,000, whether such
     indebtedness now exists or shall hereafter be created, which default (A)
     shall constitute a failure to pay any portion of the principal of such
     indebtedness when due and payable after the expiration of any applicable
     grace period with respect thereto or (B) shall have resulted in such
     indebtedness becoming or being declared due and payable prior to the date
     on which it would otherwise have become due and payable, without, in the
     case of Clause (A), such indebtedness having been discharged or without,
     in the case of Clause (B), such indebtedness having been discharged or
     such acceleration having been rescinded or annulled, in each such case
     within a period of 10 days after there shall have been given, by
     registered or certified mail, to the Company by the Trustee or to the
     Company and the Trustee by the Holders of at least 25% in principal amount
     of the Outstanding Securities of that series a written notice specifying
     such default and requiring the Company to cause such indebtedness to be
     discharged or cause such acceleration to be rescinded or annulled, as the
     case may be, and stating that such notice is a "Notice of Default"
     hereunder; provided, however, that, subject to the provisions of Sections
     601 and 602, the Trustee shall not be deemed to have knowledge of such
     default unless either (A) a Responsible Officer of the Trustee shall have
     actual knowledge of such default or (B) the Trustee shall have received
     written notice thereof from the Company, from any Holder, from the holder
     of any such indebtedness or from the trustee under any such mortgage,
     indenture or other instrument; or

          (6)  the entry by a court having jurisdiction in the premises of (A)
     a decree or order for relief in respect of the Company in an involuntary
     case or proceeding under any applicable Federal or State bankruptcy,
     insolvency, reorganization or other similar law or (B) a decree or order
     adjudging the Company a bankrupt or insolvent, or approving as properly
     filed a petition seeking reorganization, arrangement, adjustment or
     composition of or in respect of the Company under any applicable Federal
     or State law, or appointing a custodian, receiver, liquidator, assignee,
     trustee, sequestrator or other similar official of the Company or of any





                                      -34-
<PAGE>   43
     substantial part of its property, or ordering the winding up or
     liquidation of its affairs, and the continuance of any such decree or
     order for relief or any such other decree or order unstayed and in effect
     for a period of 60 consecutive days; or

          (7)  the commencement by the Company of a voluntary case or
     proceeding under any applicable Federal or State bankruptcy, insolvency,
     reorganization or other similar law or of any other case or proceeding to
     be adjudicated a bankrupt or insolvent, or the consent by it to the entry
     of a decree or order for relief in respect of the Company in an
     involuntary case or proceeding under any applicable Federal or State
     bankruptcy, insolvency, reorganization or other similar law or to the
     commencement of any bankruptcy or insolvency case or proceeding against
     it, or the filing by it of a petition or answer or consent seeking
     reorganization or relief under any applicable Federal or State law, or the
     consent by it to the filing of such petition or to the appointment of or
     taking possession by a custodian, receiver, liquidator, assignee, trustee,
     sequestrator or other similar official of the Company or of any
     substantial part of its property, or the making by it of an assignment for
     the benefit of creditors, or the admission by it in writing of its
     inability to pay its debts generally as they become due, or the taking of
     corporate action by the Company in furtherance of any such action; or

          (8)  any other Event of Default provided with respect to Securities
     of that series.


SECTION 502.   Acceleration of Maturity; Rescission and Annulment.

          If an Event of Default (other than an Event of Default specified in
Section 501(6) or 501(7)) with respect to Securities of any series at the time
Outstanding occurs and is continuing, then in every such case the Trustee or
the Holders of not less than 25% in principal amount of the Outstanding
Securities of that series may declare the principal amount of all the
Securities of that series (or, if any Securities of that series are Original
Issue Discount Securities, such portion of the principal amount of such
Securities as may be specified by the terms thereof) to be due and payable
immediately, by a notice in writing to the Company (and to the Trustee if given
by Holders), and upon any such declaration such principal amount (or specified
amount) shall become immediately due and payable. If an Event of Default
specified in Section 501(6) or 501(7) with respect to Securities of any series
at the time Outstanding occurs, the principal amount of all the Securities of
that series (or, if any Securities of that series are Original Issue Discount
Securities, such portion of the principal amount of such Securities as may be
specified by the terms thereof) shall automatically, and without any
declaration or other action on the part of the Trustee or any Holder, become
immediately due and payable.

          At any time after such a declaration of acceleration with respect to
Securities of any series has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter in
this Article provided, the Holders of a majority in principal amount of the
Outstanding Securities of that series, by written





                                      -35-
<PAGE>   44
notice to the Company and the Trustee, may rescind and annul such declaration
and its consequences if

          (1)  the Company has paid or deposited with the Trustee a sum 
     sufficient to pay

               (A)  all overdue interest on all Securities of that series,

               (B)  the principal of (and premium, if any, on) any Securities
          of that series which have become due otherwise than by such
          declaration of acceleration and any interest thereon at the rate or
          rates prescribed therefor in such Securities,

               (C)  to the extent that payment of such interest is lawful,
          interest upon overdue interest at the rate or rates prescribed
          therefor in such Securities, and

               (D)  all sums paid or advanced by the Trustee hereunder and the
          reasonable compensation, expenses, disbursements and advances of the
          Trustee, its agents and counsel;

     and

          (2)  all Events of Default with respect to Securities of that series,
     other than the non-payment of the principal of Securities of that series
     which have become due solely by such declaration of acceleration, have
     been cured or waived as provided in Section 513.

No such rescission shall affect any subsequent default or impair any right
consequent thereon.


SECTION 503.   Collection of Indebtedness and Suits for Enforcement by Trustee.

          The Company covenants that if

          (1)  default is made in the payment of any interest on any Security
     when such interest becomes due and payable and such default continues for
     a period of 30 days, or

          (2)  default is made in the payment of  the principal of (or premium,
     if any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities, the whole amount then due and payable on such
Securities for principal and any premium and interest and, to the extent that
payment of such interest shall be legally enforceable, interest on any overdue
principal and premium and on any overdue interest, at the rate or rates
prescribed therefor in such Securities, and, in addition thereto, such further
amount as shall be sufficient to cover the costs and





                                      -36-
<PAGE>   45
expenses of collection, including the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel.

          If an Event of Default with respect to Securities of any series
occurs and is continuing, the Trustee may in its discretion proceed to protect
and enforce its rights and the rights of the Holders of Securities of such
series by such appropriate judicial proceedings as the Trustee shall deem most
effectual to protect and enforce any such rights, whether for the specific
enforcement of any covenant or agreement in this Indenture or in aid of the
exercise of any power granted herein, or to enforce any other proper remedy.


SECTION 504.   Trustee May File Proofs of Claim.

          In case of any judicial proceeding relative to the Company (or any
other obligor upon the Securities), its property or its creditors, the Trustee
shall be entitled and empowered, by intervention in such proceeding or
otherwise, to take any and all actions authorized under the Trust Indenture Act
in order to have claims of the Holders and the Trustee allowed in any such
proceeding. In particular, the Trustee shall be authorized to collect and
receive any moneys or other property payable or deliverable on any such claims
and to distribute the same; and any custodian, receiver, assignee, trustee,
liquidator, sequestrator or other similar official in any such judicial
proceeding is hereby authorized by each Holder to make such payments to the
Trustee and, in the event that the Trustee shall consent to the making of such
payments directly to the Holders, to pay to the Trustee any amount due it for
the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and counsel, and any other amounts due the Trustee under
Section 607.

          No provision of this Indenture shall be deemed to authorize the
Trustee to authorize or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement, adjustment or composition affecting
the Securities or the rights of any Holder thereof or to authorize the Trustee
to vote in respect of the claim of any Holder in any such proceeding; provided,
however, that the Trustee may, on behalf of the Holders, vote for the election
of a trustee in bankruptcy or similar official and be a member of a creditors'
or other similar committee.


SECTION 505.   Trustee May Enforce Claims Without Possession of Securities.

          All rights of action and claims under this Indenture or the
Securities may be prosecuted and enforced by the Trustee without the possession
of any of the Securities or the production thereof in any proceeding relating
thereto, and any such proceeding instituted by the Trustee shall be brought in
its own name as trustee of an express trust, and any recovery of judgment
shall, after provision for the payment of the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel, be
for the ratable benefit of the Holders of the Securities in respect of which
such judgment has been recovered.





                                      -37-
<PAGE>   46
SECTION 506.   Application of Money Collected.

          Any money collected by the Trustee pursuant to this Article shall be
applied in the following order, at the date or dates fixed by the Trustee and,
in case of the distribution of such money on account of principal or any
premium or interest, upon presentation of the Securities and the notation
thereon of the payment if only partially paid and upon surrender thereof if
fully paid:

          FIRST:  To the payment of all amounts due the Trustee under Section 
     607; and

          SECOND:   To the payment of the amounts then due and unpaid for
     principal of and any premium and interest on the Securities in respect of
     which or for the benefit of which such money has been collected, ratably,
     without preference or priority of any kind, according to the amounts due
     and payable on such Securities for principal and any premium  and
     interest, respectively.


SECTION 507.   Limitation on Suits.

          No Holder of any Security of any series shall have any right to
institute any proceeding, judicial or otherwise, with respect to this
Indenture, or for the appointment of a receiver or trustee, or for any other
remedy hereunder, unless

          (1)  such Holder has previously given written notice to the Trustee
     of a continuing Event of Default with respect to the Securities of that
     series;

          (2)  the Holders of not less than 25% in principal amount of the
     Outstanding Securities of that series shall have made written request to
     the Trustee to institute proceedings in respect of such Event of Default
     in its own name as Trustee hereunder;

          (3)  such Holder or Holders have offered to the Trustee reasonable
     indemnity against the costs, expenses and liabilities to be incurred in
     compliance with such request;

          (4)  the Trustee for 60 days after its receipt of such notice,
     request and offer of indemnity has failed to institute any such
     proceeding; and

          (5)  no direction inconsistent with such written request has been
     given to the Trustee during such 60-day period by the Holders of a
     majority in principal amount of the Outstanding Securities of that series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to





                                      -38-
<PAGE>   47
enforce any right under this Indenture, except in the manner herein provided
and for the equal and ratable benefit of all of such Holders.


SECTION 508.   Unconditional Right of Holders to Receive Principal, Premium and
               Interest.

          Notwithstanding any other provision in this Indenture, the Holder of
any Security shall have the right, which is absolute and unconditional, to
receive payment of the principal of and any premium and (subject to Section
307) interest on such Security on the respective Stated Maturities expressed in
such Security (or, in the case of redemption, on the Redemption Date) and to
institute suit for the enforcement of any such payment, and such rights shall
not be impaired without the consent of such Holder.


SECTION 509.   Restoration of Rights and Remedies.

          If the Trustee or any Holder has instituted any proceeding to enforce
any right or remedy under this Indenture and such proceeding has been
discontinued or abandoned for any reason, or has been determined adversely to
the Trustee or to such Holder, then and in every such case, subject to any
determination in such proceeding, the Company, the Trustee and the Holders
shall be restored severally and respectively to their former positions
hereunder and thereafter all rights and remedies of the Trustee and the Holders
shall continue as though no such proceeding had been instituted.


SECTION 510.   Rights and Remedies Cumulative.

          Except as otherwise provided with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities in the last
paragraph of Section 306, no right or remedy herein conferred upon or reserved
to the Trustee or to the Holders is intended to be exclusive of any other right
or remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or
now or hereafter existing at law or in equity or otherwise. The assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent
the concurrent assertion or employment of any other appropriate right or
remedy.


SECTION 511.   Delay or Omission Not Waiver.

          No delay or omission of the Trustee or of any Holder of any
Securities to exercise any right or remedy accruing upon any Event of Default
shall impair any such right or remedy or constitute a waiver of any such Event
of Default or an acquiescence therein. Every right and remedy given by this
Article or by law to the Trustee or to the Holders may be exercised from time
to time, and as often as may be deemed expedient, by the Trustee or by the
Holders, as the case may be.





                                      -39-
<PAGE>   48
SECTION 512.   Control by Holders.

          The Holders of at least a majority in principal amount of the
Outstanding Securities of any series shall have the right to direct the time,
method and place of conducting any proceeding for any remedy available to the
Trustee, or exercising any trust or power conferred on the Trustee, with
respect to the Securities of such series, provided that

          (1)  such direction shall not be in conflict with any rule of law or
     with this Indenture, and

          (2)  the Trustee may take any other action deemed proper by the
     Trustee which is not inconsistent with such direction.


SECTION 513.   Waiver of Past Defaults.

          The Holders of at least a majority in principal amount of the
Outstanding Securities of any series may on behalf of the Holders of all the
Securities of such series waive any past default hereunder with respect to such
series and its consequences, except a default

          (1)  in the payment of the principal of or any premium or interest on
     any Security of such series, or

          (2)  in respect of a covenant or provision hereof which under Article
     Nine cannot be modified or amended without the consent of the Holder of
     each Outstanding Security of such series affected.

          Upon any such waiver, such default shall cease to exist, and any
Event of Default arising therefrom shall be deemed to have been cured, for
every purpose of this Indenture; but no such waiver shall extend to any
subsequent or other default or impair any right consequent thereon.


SECTION 514.   Undertaking for Costs.

          In any suit for the enforcement of any right or remedy under this
Indenture, or in any suit against the Trustee for any action taken, suffered or
omitted by it as Trustee, a court may require any party litigant in such suit
to file an undertaking to pay the costs of such suit, and may assess costs
against any such party litigant, in the manner and to the extent provided in
the Trust Indenture Act; provided that neither this Section nor the Trust
Indenture Act shall be deemed to authorize any court to require such an
undertaking or to make such an assessment in any suit instituted by the
Company.





                                      -40-
<PAGE>   49
SECTION 515.   Waiver of Usury, Stay or Extension Laws.

          The Company covenants (to the extent that it may lawfully do so) that
it will not at any time insist upon, or plead, or in any manner whatsoever
claim or take the benefit or advantage of, any usury, stay or extension law
wherever enacted, now or at any time hereafter in force, which may affect the
covenants or the performance of this Indenture; and the Company (to the extent
that it may lawfully do so) hereby expressly waives all benefit or advantage of
any such law and covenants that it will not hinder, delay or impede the
execution of any power herein granted to the Trustee, but will suffer and
permit the execution of every such power as though no such law had been
enacted.


                                  ARTICLE SIX

                                  THE TRUSTEE


SECTION 601.   Certain Duties and Responsibilities.

          The duties and responsibilities of the Trustee shall be as provided
by the Trust Indenture Act. Notwithstanding the foregoing, no provision of this
Indenture shall require the Trustee to expend or risk its own funds or
otherwise incur any financial liability in the performance of any of its duties
hereunder, or in the exercise of any of its rights or powers, if it shall have
reasonable grounds for believing that repayment of such funds or adequate
indemnity against such risk or liability is not reasonably assured to it.
Whether or not therein expressly so provided, every provision of this Indenture
relating to the conduct or affecting the liability of or affording protection
to the Trustee shall be subject to the provisions of this Section.


SECTION 602.   Notice of Defaults.

          If a default occurs hereunder with respect to Securities of any
series, the Trustee shall give the Holders of Securities of such series notice
of such default as and to the extent provided by the Trust Indenture Act;
provided, however, that in the case of any default of the character specified
in Section 501(4) with respect to Securities of such series, no such notice to
Holders shall be given until at least 30 days after the occurrence thereof. For
the purpose of this Section, the term "default" means any event which is, or
after notice or lapse of time or both would become, an Event of Default with
respect to Securities of such series.





                                      -41-
<PAGE>   50
SECTION 603.   Certain Rights of Trustee.

          Subject to the provisions of Section 601:

          (1)  the Trustee may rely and shall be protected in acting or
     refraining from acting upon any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, other evidence of indebtedness or other paper or
     document believed by it to be genuine and to have been signed or presented
     by the proper party or parties;

          (2)  any request or direction of the Company mentioned herein shall
     be sufficiently evidenced by a Company Request or Company Order, and any
     resolution of the Board of Directors shall be sufficiently evidenced by a
     Board Resolution;

          (3)  whenever in the administration of this Indenture the Trustee
     shall deem it desirable that a matter be proved or established prior to
     taking, suffering or omitting any action hereunder, the Trustee (unless
     other evidence be herein specifically prescribed) may, in the absence of
     bad faith on its part, rely upon an Officers' Certificate;

          (4)  the Trustee may consult with counsel and the written advice of
     such counsel or any Opinion of Counsel shall be full and complete
     authorization and protection in respect of any action taken, suffered or
     omitted by it hereunder in good faith and in reliance thereon;

          (5)  the Trustee shall be under no obligation to exercise any of the
     rights or powers vested in it by this Indenture at the request or
     direction of any of the Holders pursuant to this Indenture, unless such
     Holders shall have offered to the Trustee reasonable security or indemnity
     against the costs, expenses and liabilities which might be incurred by it
     in compliance with such request or direction;

          (6)  the Trustee shall not be bound to make any investigation into
     the facts or matters stated in any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, other evidence of indebtedness or other paper or
     document, but the Trustee, in its discretion, may make such further
     inquiry or investigation into such facts or matters as it may see fit,
     and, if the Trustee shall determine to make such further inquiry or
     investigation, it shall be entitled to examine the books, records and
     premises of the Company, personally or by agent or attorney; and

          (7)  the Trustee may execute any of the trusts or powers hereunder or
     perform any duties hereunder either directly or by or through agents or
     attorneys and the Trustee shall not be responsible for any misconduct or
     negligence on the part of any agent or attorney appointed with due care by
     it hereunder.





                                      -42-
<PAGE>   51
SECTION 604.   Not Responsible for Recitals or Issuance of Securities.

          The recitals contained herein and in the Securities, except the
Trustee's certificates of authentication, shall be taken as the statements of
the Company, and neither the Trustee nor any Authenticating Agent assumes any
responsibility for their correctness. The Trustee makes no representations as
to the validity or sufficiency of this Indenture or of the Securities. Neither
the Trustee nor any Authenticating Agent shall be accountable for the use or
application by the Company of Securities or the proceeds thereof.


SECTION 605.   May Hold Securities.

          The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company, in its individual or any other
capacity, may become the owner or pledgee of Securities and, subject to
Sections 608 and 613, may otherwise deal with the Company with the same rights
it would have if it were not Trustee, Authenticating Agent, Paying Agent,
Security Registrar or such other agent.


SECTION 606.   Money Held in Trust.

          Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law.  The Trustee shall be
under no liability for interest on any money received by it hereunder except as
otherwise agreed with the Company.


SECTION 607.   Compensation and Reimbursement.

          The Company agrees

          (1)  to pay to the Trustee from time to time reasonable compensation
     for all services rendered by it hereunder (which compensation shall not be
     limited by any provision of law in regard to the compensation of a trustee
     of an express trust);

          (2)  except as otherwise expressly provided herein, to reimburse the
     Trustee upon its request for all reasonable expenses, disbursements and
     advances incurred or made by the Trustee in accordance with any provision
     of this Indenture (including the reasonable compensation and the expenses
     and disbursements of its agents and counsel), except any such expense,
     disbursement or advance as may be attributable to its negligence or bad
     faith; and

          (3)  to indemnify the Trustee for, and to hold it harmless against,
     any loss, liability or expense incurred without negligence or bad faith on
     its part, arising out of or in connection with the acceptance or
     administration of the trust or trusts hereunder, including the costs and
     expenses of defending itself against any claim or





                                      -43-
<PAGE>   52
     liability in connection with the exercise or performance of any of its
     powers or duties hereunder.


SECTION 608.   Conflicting Interests.

          If the Trustee has or shall acquire a conflicting interest within the
meaning of the Trust Indenture Act, the Trustee shall either eliminate such
interest or resign, to the extent and in the manner provided by, and subject to
the provisions of, the Trust Indenture Act and this Indenture. To the extent
permitted by such Act, the Trustee shall not be deemed to have a conflicting
interest by virtue of being a trustee under this Indenture with respect to
Securities of more than one series, or a trustee under the Subordinated
Indenture, dated as of ________, 1996, between the Company and the Trustee.


SECTION 609.   Corporate Trustee Required; Eligibility.

          There shall at all times be one (and only one) Trustee hereunder with
respect to the Securities of each series, which may be Trustee hereunder for
Securities of one or more other series. Each Trustee shall be a Person that is
eligible pursuant to the Trust Indenture Act to act as such and has a combined
capital and surplus of at least $50,000,000. If any such Person publishes
reports of condition at least annually, pursuant to law or to the requirements
of its supervising or examining authority, then for the purposes of this
Section and to the extent permitted by the Trust Indenture Act, the combined
capital and surplus of such Person shall be deemed to be its combined capital
and surplus as set forth in its most recent report of condition so published.
If at any time the Trustee with respect to the Securities of any series shall
cease to be eligible in accordance with the provisions of this Section, it
shall resign immediately in the manner and with the effect hereinafter
specified in this Article.


SECTION 610.   Resignation and Removal; Appointment of Successor.

          No resignation or removal of the Trustee and no appointment of a
successor Trustee pursuant to this Article shall become effective until the
acceptance of appointment by the successor Trustee in accordance with the
applicable requirements of Section 611.

          The Trustee may resign at any time with respect to the Securities of
one or more series by giving written notice thereof to the Company. If the
instrument of acceptance by a successor Trustee required by Section 611 shall
not have been delivered to the Trustee within 30 days after the giving of such
notice of resignation, the resigning Trustee may petition any court of
competent jurisdiction for the appointment of a successor Trustee with respect
to the Securities of such series.





                                      -44-
<PAGE>   53
          The Trustee may be removed at any time with respect to the Securities
of any series by Act of the Holders of a majority in principal amount of the
Outstanding Securities of such series, delivered to the Trustee and to the
Company.

          If at any time:

          (1)  the Trustee shall fail to comply with Section 608 after written
     request therefor by the Company or by any Holder who has been a bona fide
     Holder of a Security for at least six months, or

          (2)  the Trustee shall cease to be eligible under Section 609 and
     shall fail to resign after written request therefor by the Company or by
     any such Holder, or

          (3)  the Trustee shall become incapable of acting or shall be
     adjudged a bankrupt or insolvent or a receiver of the Trustee or of its
     property shall be appointed or any public officer shall take charge or
     control of the Trustee or of its property or affairs for the purpose of
     rehabilitation, conservation or liquidation,

then, in any such case, (A) the Company by a Board Resolution may remove the
Trustee with respect to all Securities, or (B) subject to Section 514, any
Holder who has been a bona fide Holder of a Security for at least six months
may, on behalf of himself and all others similarly situated, petition any court
of competent jurisdiction for the removal of the Trustee with respect to all
Securities and the appointment of a successor Trustee or Trustees.

          If the Trustee shall resign, be removed or become incapable of
acting, or if a vacancy shall occur in the office of Trustee for any cause,
with respect to the Securities of one or more series, the Company, by a Board
Resolution, shall promptly appoint a successor Trustee or Trustees with respect
to the Securities of that or those series (it being understood that any such
successor Trustee may be appointed with respect to the Securities of one or
more or all of such series and that at any time there shall be only one Trustee
with respect to the Securities of any particular series) and shall comply with
the applicable requirements of Section 611. If, within one year after such
resignation, removal or incapability, or the occurrence of such vacancy, a
successor Trustee with respect to the Securities of any series shall be
appointed by Act of the Holders of a majority in principal amount of the
Outstanding Securities of such series delivered to the Company and the retiring
Trustee, the successor Trustee so appointed shall, forthwith upon its
acceptance of such appointment in accordance with the applicable requirements
of Section 611, become the successor Trustee with respect to the Securities of
such series and to that extent supersede the successor Trustee appointed by the
Company. If no successor Trustee with respect to the Securities of any series
shall have been so appointed by the Company or the Holders and accepted
appointment in the manner required by Section 611, any Holder who has been a
bona fide Holder of a Security of such series for at least six months may, on
behalf of himself and all others similarly situated, petition any court of
competent jurisdiction for the appointment of a successor Trustee with respect
to the Securities of such series.





                                      -45-
<PAGE>   54
          The Company shall give notice of each resignation and each removal of
the Trustee with respect to the Securities of any series and each appointment
of a successor Trustee with respect to the Securities of any series to all
Holders of Securities of such series in the manner provided in Section 106.
Each notice shall include the name of the successor Trustee with respect to the
Securities of such series and the address of its Corporate Trust Office.


SECTION 611.   Acceptance of Appointment by Successor.

          In case of the appointment hereunder of a successor Trustee with
respect to all Securities, every such  successor Trustee so appointed shall
execute, acknowledge and deliver to the Company and to the retiring Trustee an
instrument accepting such appointment, and thereupon the resignation or removal
of the retiring Trustee shall become effective and such successor Trustee,
without any further act, deed or conveyance, shall become vested with all the
rights, powers, trusts and duties of the retiring Trustee; but, on the request
of the Company or the successor Trustee, such retiring Trustee shall, upon
payment of its charges, execute and deliver an instrument transferring to such
successor Trustee all the rights, powers and trusts of the retiring Trustee and
shall duly assign, transfer and deliver to such successor Trustee all property
and money held by such retiring Trustee hereunder.

          In case of the appointment hereunder of a successor Trustee with
respect to the Securities of one or more (but not all) series, the Company, the
retiring Trustee and each successor Trustee with respect to the Securities of
one or more series shall execute and deliver an indenture supplemental hereto
wherein each successor Trustee shall accept such appointment and which (1)
shall contain such provisions as shall be necessary or desirable to transfer
and confirm to, and to vest in, each successor Trustee all the rights, powers,
trusts and duties of the retiring Trustee with respect to the Securities of
that or those series to which the appointment of such successor Trustee
relates, (2) if the retiring Trustee is not retiring with respect to all
Securities, shall contain such provisions as shall be deemed necessary or
desirable to confirm that all the rights, powers, trusts and duties of the
retiring Trustee with respect to the Securities of that or those series as to
which the retiring Trustee is not retiring shall continue to be vested in the
retiring Trustee, and (3) shall add to or change any of the provisions of this
Indenture as shall be necessary to provide for or facilitate the administration
of the trusts hereunder by more than one Trustee, it being understood that
nothing herein or in such supplemental indenture shall constitute such Trustees
co-trustees of the same trust and that each such Trustee shall be trustee of a
trust or trusts hereunder separate and apart from any trust or trusts hereunder
administered by any other such Trustee; and upon the execution and delivery of
such supplemental indenture the resignation or removal of the retiring Trustee
shall become effective to the extent provided therein and each such successor
Trustee, without any further act, deed or conveyance, shall become vested with
all the rights, powers, trusts and duties of the retiring Trustee with respect
to the Securities of that or those series to which the appointment of such
successor Trustee relates; but, on request of the Company or any successor
Trustee, such retiring Trustee shall duly assign, transfer and deliver to such
successor Trustee all property and money held by such retiring Trustee
hereunder





                                      -46-
<PAGE>   55
with respect to the Securities of that or those series to which the appointment
of such successor Trustee relates.

          Upon request of any such successor Trustee, the Company shall execute
any and all instruments for more fully and certainly vesting in and confirming
to such successor Trustee all such rights, powers and trusts referred to in the
first or second preceding paragraph, as the case may be.

          No successor Trustee shall accept its appointment unless at the time
of such acceptance such successor Trustee shall be qualified and eligible under
this Article.


SECTION 612.   Merger, Conversion, Consolidation or Succession to Business.

          Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any
merger, conversion or consolidation to which the Trustee shall be a party, or
any corporation succeeding to all or substantially all the corporate trust
business of the Trustee, shall be the successor of the Trustee hereunder,
provided such corporation shall be otherwise qualified and eligible under this
Article, without the execution or filing of any paper or any further act on the
part of any of the parties hereto. In case any Securities shall have been
authenticated, but not delivered, by the Trustee then in office, any successor
by merger, conversion or consolidation to such authenticating Trustee may adopt
such authentication and deliver the Securities so authenticated with the same
effect as if such successor Trustee had itself authenticated such Securities.


SECTION 613.   Preferential Collection of Claims Against Company.

          If and when the Trustee shall be or become a creditor of the Company
(or any other obligor upon the Securities), the Trustee shall be subject to the
provisions of the Trust Indenture Act regarding the collection of claims
against the Company (or any such other obligor).


SECTION 614.   Appointment of Authenticating Agent.

          The Trustee may appoint an Authenticating Agent or Agents with
respect to one or more series of Securities which shall be authorized to act on
behalf of the Trustee to authenticate Securities of such series issued upon
original issue and upon exchange, registration of transfer or partial
redemption thereof or pursuant to Section 306, and Securities so authenticated
shall be entitled to the benefits of this Indenture and shall be valid and
obligatory for all purposes as if authenticated by the Trustee hereunder.
Wherever reference is made in this Indenture to the authentication and delivery
of Securities by the Trustee or the Trustee's certificate of authentication,
such reference shall be deemed to include authentication and delivery on behalf
of the Trustee by an Authenticating Agent and a certificate of authentication
executed on behalf of the Trustee





                                      -47-
<PAGE>   56
by an Authenticating Agent. Each Authenticating Agent shall be acceptable to
the Company and shall at all times be a corporation organized and doing
business under the laws of the United States of America, any State thereof or
the District of Columbia, authorized under such laws to act as Authenticating
Agent, having a combined capital and surplus of not less than $50,000,000 and
subject to supervision or examination by Federal or State authority. If such
Authenticating Agent publishes reports of condition at least annually, pursuant
to law or to the requirements of said supervising or examining authority, then
for the purposes of this Section, the combined capital and surplus of such
Authenticating Agent shall be deemed to be its combined capital and surplus as
set forth in its most recent report of condition so published. If at any time
an Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, such Authenticating Agent shall resign immediately
in the manner and with the effect specified in this Section.

          Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency or
corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible
under this Section, without the execution or filing of any paper or any further
act on the part of the Trustee or the Authenticating Agent.

          An Authenticating Agent may resign at any time by giving written
notice thereof to the Trustee and to the Company. The Trustee may at any time
terminate the agency of an Authenticating Agent by giving written notice
thereof to such Authenticating Agent and to the Company. Upon receiving such a
notice of resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee may appoint a successor Authenticating
Agent which shall be acceptable to the Company and shall give notice of such
appointment in the manner provided in Section 106 to all Holders of Securities
of the series with respect to which such Authenticating Agent will serve. Any
successor Authenticating Agent upon acceptance of its appointment hereunder
shall become vested with all the rights, powers and duties of its predecessor
hereunder, with like effect as if originally named as an Authenticating Agent.
No successor Authenticating Agent shall be appointed unless eligible under the
provisions of this Section.

          The Trustee agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section, and the
Trustee shall be entitled to be reimbursed for such payments, subject to the
provisions of Section 607.

          If an appointment with respect to one or more series is made pursuant
to this Section, the Securities of such series may have endorsed thereon, in
addition to the Trustee's certificate of authentication, an alternative
certificate of authentication in the following form:





                                      -48-
<PAGE>   57
          This is one of the Securities of the series designated therein
referred to in the within-mentioned Indenture.


                                             THE FIRST NATIONAL BANK OF CHICAGO,
                                                                      As Trustee


                                             By________________________________,
                                                         As Authenticating Agent



                                             By_________________________________
                                                              Authorized Officer



                                 ARTICLE SEVEN

               HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY


SECTION 701.   Company to Furnish Trustee Names and Addresses of Holders.

          The Company will furnish or cause to be furnished to the Trustee

          (1)  semi-annually, not later than June 30 and July 31 in each year,
     a list, in such form as the Trustee may reasonably require, of the names
     and addresses of the Holders of Securities of each series as of the
     preceding June 15 or December 15, as the case may be, and

          (2)  at such other times as the Trustee may request in writing,
     within 30 days after the receipt by the Company of any such request, a
     list of similar form and content as of a date not more than 15 days prior
     to the time such list is furnished;

excluding from any such list names and addresses received by the Trustee in its
capacity as Security Registrar.


SECTION 702.   Preservation of Information; Communications to Holders.

          The Trustee shall preserve, in as current a form as is reasonably
practicable, the names and addresses of Holders contained in the most recent
list furnished to the Trustee as provided in Section 701 and the names and
addresses of Holders received by





                                      -49-
<PAGE>   58
the Trustee in its capacity as Security Registrar. The Trustee may destroy any
list furnished to it as provided in Section 701 upon receipt of a new list so
furnished.

          The rights of Holders to communicate with other Holders with respect
to their rights under this Indenture or under the Securities, and the
corresponding rights and privileges of the Trustee, shall be as provided by the
Trust Indenture Act.

          Every Holder of Securities, by receiving and holding the same, agrees
with the Company and the Trustee that neither the Company nor the Trustee nor
any agent of either of them shall be held accountable by reason of any
disclosure of information as to names and addresses of Holders made pursuant to
the Trust Indenture Act.


SECTION 703.   Reports by Trustee.

          The Trustee shall transmit to Holders such reports concerning the
Trustee and its actions under this Indenture as may be required pursuant to the
Trust Indenture Act at the times and in the manner provided pursuant thereto.

          A copy of each such report shall, at the time of such transmission to
Holders, be filed by the Trustee with each stock exchange upon which any
Securities are listed, with the Commission and with the Company. The Company
will notify the Trustee when any Securities are listed on any stock exchange.


SECTION 704.   Reports by Company.

          The Company shall file with the Trustee and the Commission, and
transmit to Holders, such information, documents and other reports, and such
summaries thereof, as may be required pursuant to the Trust Indenture Act at
the times and in the manner provided pursuant to such Act; provided that any
such information, documents or reports required to be filed with the Commission
pursuant to Section 13 or 15(d) of the Exchange Act shall be filed with the
Trustee within 15 days after the same is so required to be filed with the
Commission.


                                 ARTICLE EIGHT

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE


SECTION 801.   Company May Consolidate, Etc., Only on Certain Terms.

          The Company shall not consolidate with or merge into any other Person
or convey, transfer or lease its properties and assets substantially as an
entirety to any Person, and the Company shall not permit any Person to
consolidate with or merge into





                                      -50-
<PAGE>   59
the Company or convey, transfer or lease its properties and assets
substantially as an entirety to the Company, unless:

          (1)  in case the Company shall consolidate with or merge into another
     Person or convey, transfer or lease its properties and assets
     substantially as an entirety to any Person, the Person formed by such
     consolidation or into which the Company is merged or the Person which
     acquires by conveyance or transfer, or which leases, the properties and
     assets of the Company substantially as an entirety shall be a corporation,
     partnership or trust or other entity organized and validly existing under
     the laws of the United States of America, any State thereof or the
     District of Columbia and shall expressly assume, by an indenture
     supplemental hereto, executed and delivered to the Trustee, in form
     satisfactory to the Trustee, the due and punctual payment of the principal
     of and any premium and interest on all the Securities and the performance
     or observance of every covenant of this Indenture on the part of the
     Company to be performed or observed;

          (2)  immediately after giving effect to such transaction and treating
     any indebtedness which becomes an obligation of the Company or any
     Subsidiary as a result of such transaction as having been incurred by the
     Company or such Subsidiary at the time of such transaction, no Event of
     Default, and no event which, after notice or lapse of time or both, would
     become an Event of Default, shall have happened and be continuing;

          (3)  if, as a result of any such consolidation or merger or such
     conveyance, transfer or lease, properties or assets of the Company would
     become subject to a mortgage, pledge, lien, security interest or other
     encumbrance which would not be permitted by this Indenture, the Company or
     such successor Person, as the case may be, shall take such steps as shall
     be necessary effectively to secure the Securities equally and ratably with
     (or prior to) all indebtedness secured thereby; and

          (4)  the Company has delivered to the Trustee an Officers'
     Certificate and an Opinion of Counsel, each stating that such
     consolidation, merger, conveyance, transfer or lease and, if a
     supplemental indenture is required in connection with such transaction,
     such supplemental indenture comply with this Article and that all
     conditions precedent herein provided for relating to such transaction have
     been complied with.


SECTION 802.   Successor Substituted.

          Upon any consolidation of the Company with, or merger of the Company
into, any other Person or any conveyance, transfer or lease of the properties
and assets of the Company substantially as an entirety in accordance with
Section 801, the successor Person formed by such consolidation or into which
the Company is merged or to which such conveyance, transfer or lease is made
shall succeed to, and be substituted for, and may exercise every right and
power of, the Company under this Indenture with the same effect as if such
successor Person had been named as the Company herein, and thereafter,





                                      -51-
<PAGE>   60
except in the case of a lease, the predecessor Person shall be relieved of all
obligations and covenants under this Indenture and the Securities.


                                  ARTICLE NINE

                            SUPPLEMENTAL INDENTURES


SECTION 901.   Supplemental Indentures Without Consent of Holders.

          Without the consent of any Holders, the Company, when authorized by a
Board Resolution, and the Trustee, at any time and from time to time, may enter
into one or more indentures supplemental hereto, in form satisfactory to the
Trustee, for any of the following purposes:

          (1)  to evidence the succession of another Person to the Company and
     the assumption by any such successor of the covenants of the Company
     herein and in the Securities; or

          (2)  to add to the covenants of the Company for the benefit of the
     Holders of all or any series of Securities (and if such covenants are to
     be for the benefit of less than all series of Securities, stating that
     such covenants are expressly being included solely for the benefit of such
     series) or to surrender any right or power herein conferred upon the
     Company; or

          (3)  to add any additional Events of Default for the benefit of the
     Holders of all or any series of Securities (and if such additional Events
     of Default are to be for the benefit of less than all series of
     Securities, stating that such additional Events of Default are expressly
     being included solely for the benefit of such series); or

          (4)  to add to or change any of the provisions of this Indenture to
     such extent as shall be necessary to permit or facilitate the issuance of
     Securities in bearer form, registrable or not registrable as to principal,
     and with or without interest coupons, or to permit or facilitate the
     issuance of Securities in uncertificated form; or

          (5)  to add to, change or eliminate any of the provisions of this
     Indenture in respect of one or more series of Securities, provided that
     any such addition, change or elimination (A) shall neither (i) apply to
     any Security of any series created prior to the execution of such
     supplemental indenture and entitled to the benefit of such provision nor
     (ii) modify the rights of the Holder of any such Security with respect to
     such provision or (B) shall become effective only when there is no such
     Security Outstanding; or

          (6)  to secure the Securities; or





                                      -52-
<PAGE>   61
          (7)  to establish the form or terms of Securities of any series as
     permitted by Sections 201 and 301; or

          (8)  to evidence and provide for the acceptance of appointment
     hereunder by a successor Trustee with respect to the Securities of one or
     more series and to add to or change any of the provisions of this
     Indenture as shall be necessary to provide for or facilitate the
     administration of the trusts hereunder by more than one Trustee, pursuant
     to the requirements of Section 611; or

          (9)  to cure any ambiguity, to correct or supplement any provision
     herein which may be defective or inconsistent with any other provision
     herein, or to make any other provisions with respect to matters or
     questions arising under this Indenture, provided that such action pursuant
     to this Clause (9) shall not adversely affect the interests of the Holders
     of Securities of any series in any material respect.


SECTION 902.   Supplemental Indentures With Consent of Holders.

          With the consent of the Holders of at least a majority in principal
amount of the Outstanding Securities of each series affected by such
supplemental indenture, by Act of said Holders delivered to the Company and the
Trustee, the Company, when authorized by a Board Resolution, and the Trustee
may enter into an indenture or indentures supplemental hereto for the purpose
of adding any provisions to or changing in any manner or eliminating any of the
provisions of this Indenture or of modifying in any manner the rights of the
Holders of Securities of such series under this Indenture; provided, however,
that no such supplemental indenture shall, without the consent of the Holder of
each Outstanding Security affected thereby,

          (1)  change the Stated Maturity of the principal of, or any
     instalment of principal of or interest on, any Security, or reduce the
     principal amount thereof or the rate of interest thereon or any premium
     payable upon the redemption thereof, or reduce the amount of the principal
     of an Original Issue Discount Security or any other Security which would
     be due and payable upon a declaration of acceleration of the Maturity
     thereof pursuant to Section 502, or change any Place of Payment where, or
     the coin or currency in which, any Security or any premium or interest
     thereon is payable, or impair the right to institute suit for the
     enforcement of any such payment on or after the Stated Maturity thereof
     (or, in the case of redemption, on or after the Redemption Date), or

          (2)  reduce the percentage in principal amount of the Outstanding
     Securities of any series, the consent of whose Holders is required for any
     such supplemental indenture, or the consent of whose Holders is required
     for any waiver (of compliance with certain provisions of this Indenture or
     certain defaults hereunder and their consequences) provided for in this
     Indenture, or





                                      -53-
<PAGE>   62
          (3)  modify any of the provisions of this Section, Section 513 or
     Section 1010, except to increase any such percentage or to provide that
     certain other provisions of this Indenture cannot be modified or waived
     without the consent of the Holder of each Outstanding Security affected
     thereby; provided, however, that this clause shall not be deemed to
     require the consent of any Holder with respect to changes in the
     references to "the Trustee" and concomitant changes in this Section and
     Section 1010, or the deletion of this proviso, in accordance with the
     requirements of Sections 611 and 901(8).

A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely for the
benefit of one or more particular series of Securities, or which modifies the
rights of the Holders of Securities of such series with respect to such
covenant or other provision, shall be deemed not to affect the rights under
this Indenture of the Holders of Securities of any other series.

          It shall not be necessary for any Act of Holders under this Section
to approve the particular form of any proposed supplemental indenture, but it
shall be sufficient if such Act shall approve the substance thereof.


SECTION 903.   Execution of Supplemental Indentures.

          In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby
of the trusts created by this Indenture, the Trustee shall be entitled to
receive, and (subject to Section 601) shall be fully protected in relying upon,
an Opinion of Counsel stating that the execution of such supplemental indenture
is authorized or permitted by this Indenture. The Trustee may, but shall not be
obligated to, enter into any such supplemental indenture which affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise.


SECTION 904.   Effect of Supplemental Indentures.

          Upon the execution of any supplemental indenture under this Article,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every
Holder of Securities theretofore or thereafter authenticated and delivered
hereunder shall be bound thereby.


SECTION 905.   Conformity with Trust Indenture Act.

          Every supplemental indenture executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act.





                                      -54-
<PAGE>   63
SECTION 906.   Reference in Securities to Supplemental Indentures.

          Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall
if required by the Trustee, bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture. If the Company shall
so determine, new Securities of any series so modified as to conform, in the
opinion of the Trustee and the Company, to any such supplemental indenture may
be prepared and executed by the Company and authenticated and delivered by the
Trustee in exchange for Outstanding Securities of such series.


                                  ARTICLE TEN

                                   COVENANTS


SECTION 1001.  Payment of Principal, Premium and Interest.

          The Company covenants and agrees for the benefit of each series of
Securities that it will duly and punctually pay the principal of and any
premium and interest on the Securities of that series in accordance with the
terms of the Securities and this Indenture.


SECTION 1002.  Maintenance of Office or Agency.

          The Company will maintain in each Place of Payment for any series of
Securities an office or agency where Securities of that series may be presented
or surrendered for payment, where Securities of that series may be surrendered
for registration of transfer or exchange, where Securities may be surrendered
for conversion and where notices and demands to or upon the Company in respect
of the Securities of that series and this Indenture may be served. The Company
will give prompt written notice to the Trustee of the location, and any change
in the location, of such office or agency. If at any time the Company shall
fail to maintain any such required office or agency or shall fail to furnish
the Trustee with the address thereof, such presentations, surrenders, notices
and demands may be made or served at the Corporate Trust Office of the Trustee,
and the Company hereby appoints the Trustee as its agent to receive all such
presentations, surrenders, notices and demands.

          The Company may also from time to time designate one or more other
offices or agencies where the Securities of one or more series may be presented
or surrendered for any or all such purposes and may from time to time rescind
such designations; provided, however, that no such designation or rescission
shall in any manner relieve the Company of its obligation to maintain an office
or agency in each Place of Payment for Securities of any series for such
purposes. The Company will give prompt written notice to the Trustee of any
such designation or rescission and of any change in the location of any such
other office or agency.





                                      -55-
<PAGE>   64
SECTION 1003.  Money for Securities Payments to Be Held in Trust.

          If the Company shall at any time act as its own Paying Agent with
respect to any series of Securities, it will, on or before each due date of the
principal of or any premium or interest on any of the Securities of that
series, segregate and hold in trust for the benefit of the Persons entitled
thereto a sum sufficient to pay the principal and any premium and interest so
becoming due until such sums shall be paid to such Persons or otherwise
disposed of as herein provided and will promptly notify the Trustee of its
action or failure so to act.

          Whenever the Company shall have one or more Paying Agents for any
series of Securities, it will, prior to each due date of the principal of or
any premium or interest on any Securities of that series, deposit with a Paying
Agent a sum sufficient to pay such amount, such sum to be held as provided by
the Trust Indenture Act, and (unless such Paying Agent is the Trustee) the
Company will promptly notify the Trustee of its action or failure so to act.

          The Company will cause each Paying Agent for any series of Securities
other than the Trustee to execute and deliver to the Trustee an instrument in
which such Paying Agent shall agree with the Trustee, subject to the provisions
of this Section, that such Paying Agent will (1) comply with the provisions of
the Trust Indenture Act applicable to it as a Paying Agent and (2) during the
continuance of any default by the Company (or any other obligor upon the
Securities of that series) in the making of any payment in respect of the
Securities of that series, upon the written request of the Trustee, forthwith
pay to the Trustee all sums held in trust by such Paying Agent for payment in
respect of the Securities of that series.

          The Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held
in trust by the Company or such Paying Agent, such sums to be held by the
Trustee upon the same trusts as those upon which such sums were held by the
Company or such Paying Agent; and, upon such payment by any Paying Agent to the
Trustee, such Paying Agent shall be released from all further liability with
respect to such money.

          Any money deposited with the Trustee or any Paying Agent, or then
held by the Company, in trust for the payment of the principal of or any
premium or interest on any Security of any series and remaining unclaimed for
two years after such principal, premium or interest has become due and payable
shall be paid to the Company on Company Request, or (if then held by the
Company) shall be discharged from such trust; and the Holder of such Security
shall thereafter, as an unsecured general creditor, look only to the Company
for payment thereof, and all liability of the Trustee or such Paying Agent with
respect to such trust money, and all liability of the Company as trustee
thereof, shall thereupon cease; provided, however, that the Trustee or such
Paying Agent, before being required to make any such repayment, may at the
expense of the Company cause to be published once, in a newspaper published in
the English language, customarily published on each Business Day and of general
circulation in the City of New





                                      -56-
<PAGE>   65
York, notice that such money remains unclaimed and that, after a date specified
therein, which shall not be less than 30 days from the date of such
publication, any unclaimed balance of such money then remaining will be repaid
to the Company.


SECTION 1004.  Statement by Officers as to Default.

          The Company will deliver to the Trustee, within 120 days after the
end of each fiscal year of the Company ending after the date hereof, an
Officers' Certificate, stating whether or not to the best knowledge of the
signers thereof the Company is in default in the performance and observance of
any of the terms, provisions and conditions of this Indenture (without regard
to any period of grace or requirement of notice provided hereunder) and, if the
Company shall be in default, specifying all such defaults and the nature and
status thereof of which they may have knowledge.


SECTION 1005.  Existence.

          Subject to Article Eight, the Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its existence,
rights (charter and statutory) and franchises; provided, however, that the
Company shall not be required to preserve any such right or franchise if the
Board of Directors shall determine that the preservation thereof is no longer
desirable in the conduct of the business of the Company and that the loss
thereof is not disadvantageous in any material respect to the Holders.


SECTION 1006.  Maintenance of Properties.

          The Company will cause all properties used or useful in the conduct
of its business or the business of any Subsidiary to be maintained and kept in
good condition, repair and working order and supplied with all necessary
equipment and will cause to be made all necessary repairs, renewals,
replacements, betterments and improvements thereof, all as in the judgment of
the Company may be necessary so that the business carried on in connection
therewith may be properly and advantageously conducted at all times; provided,
however, that nothing in this Section shall prevent the Company from
discontinuing the operation or maintenance of any of such properties if such
discontinuance is, in the judgment of the Company, desirable in the conduct of
its business or the business of any Subsidiary and not disadvantageous in any
material respect to the Holders.


SECTION 1007.  Payment of Taxes and Other Claims.

          The Company will pay or discharge or cause to be paid or discharged,
before the same shall become delinquent, (1) all taxes, assessments and
governmental charges levied or imposed upon the Company or any Subsidiary or
upon the income, profits or property of the Company or any Subsidiary, and (2)
all lawful claims for labor, materials





                                      -57-
<PAGE>   66
and supplies which, if unpaid, might by law become a lien upon the property of
the Company or any Subsidiary; provided, however, that the Company shall not be
required to pay or discharge or cause to be paid or discharged any such tax,
assessment, charge or claim whose amount, applicability or validity is being
contested in good faith by appropriate proceedings.


SECTION 1008.  Limitation on Liens.

          The Company will not, and will not permit any Restricted Subsidiary
to, create, incur, issue, assume or guarantee any indebtedness of the Company
or any Subsidiary secured by a Lien upon any Principal Property, or upon shares
of capital stock or evidences of indebtedness issued by any Restricted
Subsidiary and owned by the Company or any Restricted Subsidiary, now owned or
hereafter owned by the Company, without making effective provision to secure
all of the Securities of each series then outstanding by such Lien, equally and
ratably with any and all other indebtedness thereby secured, so long as such
indebtedness shall be so secured.

          The foregoing restrictions shall not apply, however, to (1) Liens on
any property existing at the time of the acquisition thereof; (2) Liens on
property of a corporation existing at the time such corporation is merged into
or consolidated with the Company or a Restricted Subsidiary or at the time of a
sale, lease or other disposition of the properties of such corporation (or a
division thereof) as an entirety or substantially as an entirety to the Company
or a Restricted Subsidiary, provided that such Lien as a result of such merger,
consolidation, sale, lease or other disposition is not extended to property
owned by the Company or such Restricted Subsidiary immediately prior thereto;
(3) Liens on property of a corporation existing at the time such corporation
becomes a Restricted Subsidiary; (4) Liens securing indebtedness of a
Restricted Subsidiary to the Company or to another Restricted Subsidiary; (5)
Liens to secure all or part of the cost of acquisition, construction,
development or improvement of the underlying property, or to secure
indebtedness incurred to provide funds for any such purpose, provided that the
commitment of the creditor to extend the credit secured by any such Lien shall
have been obtained not later than twenty-four months after the later of (a) the
completion of the acquisition, construction, development or improvement of such
property or (b) the placing in operation of such property or of such property
as so constructed, developed or improved; (6) Liens on any property created,
assumed or otherwise brought into existence in contemplation of the sale or
other disposition of the underlying property, whether directly or indirectly,
by way of share disposition or otherwise; provided that the Company must have
disposed of such property within 180 days from the creation of such Liens and
any indebtedness secured by such Liens shall be without recourse to the Company
or any Subsidiary; (7) Liens in favor of the United States of America or any
State thereof, or any department, agency or instrumentality or political
subdivision thereof, to secure partial, progress, advance or other payments;
(8) Liens to secure indebtedness of joint ventures in which the Company or a
Restricted Subsidiary has an interest, to the extent such Liens are on property
or assets of, or equity interests in, such joint ventures; (9) Liens on
Equipment Held for Resale; and (10) any indebtedness secured by Liens existing
on the date of the Indenture or any extension, renewal or





                                      -58-
<PAGE>   67
replacement or refunding of any Lien existing on the date of the Indenture or
referred to in clauses (1) to (3) or (5); provided, however, that the aggregate
principal amount of indebtedness secured thereby and not otherwise authorized
by clauses (1) to (3) or (5), shall not exceed the aggregate principal amount
of indebtedness, plus any premium or fee payable in connection with any such
extension, renewal, replacement, or refunding, so secured at the time of such
extension, renewal, replacement or refunding.

          Notwithstanding the restrictions described above, the Company and its
Restricted Subsidiaries may incur, issue, assume or guarantee debt secured by
Liens without equally and ratably securing the Securities of each series then
outstanding, provided, that at the time of such incurrence, issuance,
assumption or guarantee, after giving effect thereto and to the retirement of
any indebtedness which is concurrently being retired, the aggregate amount of
all outstanding indebtedness secured by Liens so incurred, other than any
indebtedness secured by Liens permitted as described in clauses (1) through
(10) above, and together with all outstanding Attributable Value of all sale
and leaseback transactions permitted as described in Section 1009 hereof does
not exceed 15% of the Consolidated Net Tangible Assets (defined below) of the
Company.


SECTION 1009.  Limitation on Sale and Leaseback Transactions.

          Sale and leaseback transactions by the Company or any Restricted
Subsidiary involving any Principal Property are prohibited unless either (1)
the Company or its Restricted Subsidiaries would be entitled pursuant to the
provisions described in clauses (1) through (10) of the second paragraph of
Section 1008 hereof to issue assume or guarantee indebtedness secured by a Lien
on such Principal Property without equally and ratably securing the Securities
of each series than outstanding or (2) the Company or such Restricted
Subsidiary shall apply, or cause to be applied to the retirement of its secured
debt within 120 days after the effective date of the sale and leaseback
transaction, an amount not less than the greater of (i) the net proceeds of the
sale of the Principal Property leased pursuant to such arrangement or (ii) the
fair market value of the Principal Property so leased. This restriction will
not apply to a sale and leaseback transaction between the Company and a
Restricted Subsidiary or between Restricted Subsidiaries or involving the
taking back of a lease for a period of less than three years.

          Notwithstanding the restrictions described above, the Company or any
Restricted Subsidiary may enter into a sale and leaseback transaction provided,
that at the time of such transaction, after giving effect thereto, the
Attributable Value thereof, together with all indebtedness secured by Liens
permitted pursuant to Section 1008 hereto other than all indebtedness secured
by Liens permitted as described in clauses (1) through (10) of the second
paragraph of Section 1008 hereof and other than the Attributable Value of such
sale and leaseback transactions permitted by the preceding paragraph, does not
exceed 15% of Consolidated Net Tangible Assets of the Company.





                                      -59-
<PAGE>   68
SECTION 1010.  Waiver of Certain Covenants.

          Except as otherwise specified as contemplated by Section 301 for
Securities of such series, the Company may, with respect to the Securities of
any series, omit in any particular instance to comply with any term, provision
or condition set forth in any covenant provided pursuant to Section 301(18),
901(2) or 901(7) for the benefit of the Holders of such series or in Sections
1008 or 1009, if before the time for such compliance the Holders of at least a
majority in principal amount of the Outstanding Securities of such series
shall, by Act of such Holders, either waive such compliance in such instance or
generally waive compliance with such term, provision or condition, but no such
waiver shall extend to or affect such term, provision or condition except to
the extent so expressly waived, and, until such waiver shall become effective,
the obligations of the Company and the duties of the Trustee in respect of any
such term, provision or condition shall remain in full force and effect.


                                 ARTICLE ELEVEN

                            REDEMPTION OF SECURITIES


SECTION 1101.  Applicability of Article.

          Securities of any series which are redeemable before their Stated
Maturity shall be redeemable in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for such Securities) in
accordance with this Article.


SECTION 1102.  Election to Redeem; Notice to Trustee.

          The election of the Company to redeem any Securities shall be
evidenced by a Board Resolution or in another manner specified as contemplated
by Section 301 for such Securities. In case of any redemption at the election
of the Company of less than all the Securities of any series (including any
such redemption affecting only a single Security), the Company shall, at least
60 days prior to the Redemption Date fixed by the Company (unless a shorter
notice shall be satisfactory to the Trustee), notify the Trustee of such
Redemption Date, of the principal amount of Securities of such series to be
redeemed and, if applicable, of the tenor of the Securities to be redeemed. In
the case of any redemption of Securities prior to the expiration of any
restriction on such redemption provided in the terms of such Securities or
elsewhere in this Indenture, the Company shall furnish the Trustee with an
Officers' Certificate evidencing compliance with such restriction.





                                      -60-
<PAGE>   69
SECTION 1103.  Selection by Trustee of Securities to Be Redeemed.

          If less than all the Securities of any series are to be redeemed
(unless all the Securities of such series and of a specified tenor are to be
redeemed or unless such redemption affects only a single Security), the
particular Securities to be redeemed shall be selected not more than 60 days
prior to the Redemption Date by the Trustee, from the Outstanding Securities of
such series not previously called for redemption, by such method as the Trustee
shall deem fair and appropriate and which may provide for the selection for
redemption of a portion of the principal amount of any Security of such series,
provided that the unredeemed portion of the principal amount of any Security
shall be in an authorized denomination (which shall not be less than the
minimum authorized denomination) for such Security. If less than all the
Securities of such series and of a specified tenor are to be redeemed (unless
such redemption affects only a single Security), the particular Securities to
be redeemed shall be selected not more than 60 days prior to the Redemption
Date by the Trustee, from the Outstanding Securities of such series and
specified tenor not previously called for redemption in accordance with the
preceding sentence.

          The Trustee shall promptly notify the Company in writing of the
Securities selected for redemption as aforesaid and, in case of any Securities
selected for partial redemption as aforesaid, the principal amount thereof to
be redeemed.

          The provisions of the two preceding paragraphs shall not apply with
respect to any redemption affecting only a single Security, whether such
Security is to be redeemed in whole or in part. In the case of any such
redemption in part, the unredeemed portion of the principal amount of the
Security shall be in an authorized denomination (which shall not be less than
the minimum authorized denomination) for such Security.

          For all purposes of this Indenture, unless the context otherwise
requires, all provisions relating to the redemption of Securities shall relate,
in the case of any Securities redeemed or to be redeemed only in part, to the
portion of the principal amount of such Securities which has been or is to be
redeemed.


SECTION 1104.  Notice of Redemption.

          Notice of redemption shall be given by first-class mail, postage
prepaid, mailed not less than 30 nor more than 60 days prior to the Redemption
Date, to each Holder of Securities to be redeemed, at his address appearing in
the Security Register.

          All notices of redemption shall state:

          (1)  the Redemption Date,

          (2)  the Redemption Price,





                                      -61-
<PAGE>   70
          (3)  if less than all the Outstanding Securities of any series
     consisting of more than a single Security are to be redeemed, the
     identification (and, in the case of partial redemption of any such
     Securities, the principal amounts) of the particular Securities to be
     redeemed and, if less than all the Outstanding Securities of any series
     consisting of a single Security are to be redeemed, the principal amount
     of the particular Security to be redeemed,

          (4)  that on the Redemption Date the Redemption Price will become due
     and payable upon each such Security to be redeemed and, if applicable,
     that interest thereon will cease to accrue on and after said date,

          (5)  the place or places where each such Security is to be
     surrendered for payment of the Redemption Price, and

          (6)  that the redemption is for a sinking fund, if such is the case.

          Notice of redemption of Securities to be redeemed at the election of
the Company shall be given by the Company or, at the Company's request, by the
Trustee in the name and at the expense of the Company and shall be irrevocable.


SECTION 1105.  Deposit of Redemption Price.

          Prior to any Redemption Date, the Company shall deposit with the
Trustee or with a Paying Agent (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 1003) an amount of
money sufficient to pay the Redemption Price of, and (except if the Redemption
Date shall be an Interest Payment Date) accrued interest on, all the Securities
which are to be redeemed on that date.


SECTION 1106.  Securities Payable on Redemption Date.

          Notice of redemption having been given as aforesaid, the Securities
so to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and accrued
interest) such Securities shall cease to bear interest. Upon surrender of any
such Security for redemption in accordance with said notice, such Security
shall be paid by the Company at the Redemption Price, together with accrued
interest to the Redemption Date; provided, however, that, unless otherwise
specified as contemplated by Section 301, installments of interest whose Stated
Maturity is on or prior to the Redemption Date will be payable to the Holders
of such Securities, or one or more Predecessor Securities, registered as such
at the close of business on the relevant Record Dates according to their terms
and the provisions of Section 307.





                                      -62-
<PAGE>   71
          If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal and any premium shall, until
paid, bear interest from the Redemption Date at the rate prescribed therefor in
the Security.


SECTION 1107.  Securities Redeemed in Part.

          Any Security which is to be redeemed only in part shall be
surrendered at a Place of Payment therefor (with, if the Company or the Trustee
so requires, due endorsement by, or a written instrument of transfer in form
satisfactory to the Company and the Trustee duly executed by, the Holder
thereof or his attorney duly authorized in writing), and the Company shall
execute, and the Trustee shall authenticate and deliver to the Holder of such
Security without service charge, a new Security or Securities of the same
series and of like tenor, of any authorized denomination as requested by such
Holder, in aggregate principal amount equal to and in exchange for the
unredeemed portion of the principal of the Security so surrendered.


                                 ARTICLE TWELVE

                            CONVERSION OF SECURITIES


SECTION 1201.  Applicability; Conversion Privilege and Conversion Price.

          Securities of any series which are convertible into Common Stock of
the Company shall be convertible in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for Securities of any
series) in accordance with this Article.

          Subject to and upon compliance with the provisions of this Article,
at the option of the Holder thereof, any Security of a series which is
convertible or any portion of the principal amount thereof which is $1,000 or
an integral multiple of $1,000 may be converted at the principal amount
thereof, or of such portion thereof, into fully paid and nonassessable shares
(calculated as to each conversion to the nearest 1/100 of a share) of Common
Stock of the Company, at the Conversion Price, determined as hereinafter
provided, in effect at the time of conversion. Such conversion privilege shall
expire at the close of business on the date specified for Securities of such
series. In case a Security or portion thereof is called for redemption, such
conversion right in respect of the Security or portion so called shall expire
at the close of business on the Redemption Date, unless the company defaults in
making the payment due upon redemption.

          The price at which shares of Common Stock shall be delivered upon
conversion (herein called the "Conversion Price") shall be the price specified
in relation to Securities of such series pursuant to Section 301. The
Conversion Price shall be adjusted in certain instances as provided in
paragraphs (1), (2), (3), (4), (5), (6) and (9) of Section 1204.





                                      -63-
<PAGE>   72
SECTION 1202.  Exercise of Conversion Privilege.

          In order to exercise the conversion privilege, the Holder of any
Security to be converted shall surrender such Security, duly endorsed or
assigned to the Company or in blank, at any office or agency of the Company
maintained for that purpose pursuant to Section 1002, accompanied by written
notice to the Company at such office or agency that the Holder elects to
convert such Security or, if less than the entire principal amount thereof is
to be converted, the portion thereof to be converted. Securities surrendered
for conversion during the period from the close of business on any Regular
Record Date next preceding any Interest Payment Date to the opening of business
on such Interest Payment Date shall (except in the case of Securities or
portions thereof which have been called for redemption on a Redemption Date
within such period) be accompanied by payment in New York Clearing House funds
or other funds acceptable to the Company of an amount equal to the interest
payable on such Interest Payment Date on the principal amount of Securities
being surrendered for conversion. Except as provided in the preceding sentence
and subject to the fourth paragraph of Section 307, no payment or adjustment
shall be made upon any conversion on account of any interest accrued on the
Securities surrendered for conversion or on account of any dividends on the
Common Stock issued upon conversion.

          Securities shall be deemed to have been converted immediately prior
to the close of business on the day of surrender of such Securities for
conversion in accordance with the foregoing provisions, and at such time the
rights of the Holders of such Securities as Holders shall cease, and the person
or persons entitled to receive the Common Stock issuable upon conversion shall
be treated for all purposes as the record holder or holders of such Common
Stock at such time. As promptly as practicable on or after the conversion date,
the Company shall issue and shall deliver at such office or agency a
certificate or certificates for the number of full shares of Common Stock
issuable upon conversion, together with payment in lieu of any fraction of a
share, as provided in Section 1203.

          In the case of any Security (including any Global Security) which is
converted in part only, upon such conversion the Company shall execute and the
Trustee shall authenticate and deliver to the Holder thereof, at the expense of
the Company, a new Security or Securities of authorized denominations in
aggregate principal amount equal to the unconverted portion of the principal
amount of such Security; provided that if a Global Security is so converted in
part, the new Global Security shall be in a denomination equal to the
unconverted portion of the principal amount of the Global Security so converted
in part.


SECTION 1203.  Fractions of Shares.

          No fractional shares of Common Stock shall be issued upon conversion
of Securities. If more than one Security shall be surrendered for conversion at
one time by the same Holder, the number of full shares which shall be issuable
upon conversion thereof shall be computed on the basis of the aggregate
principal amount of the Securities





                                      -64-
<PAGE>   73
(or specified portions thereof), so surrendered. Instead of any fractional
share of Common Stock which would otherwise be issuable upon conversion of any
Security or Securities (or specified portions thereof) the Company shall pay a
cash adjustment in respect of such fraction in an amount equal to the same
fraction of the market price per share of Common Stock (determined as provided
in the last sentence of paragraph 6 of Section 1204) at the close of business
on the day of conversion.


SECTION 1204.  Adjustment of Conversion Price.

          (1)  In case the Company shall pay or make a dividend or other
distribution on any class of capital stock of the Company in Common Stock, the
conversion price in effect at the opening of business on the day following the
date fixed for the determination of stockholders entitled to receive such
dividend or other distribution shall be reduced by multiplying such Conversion
Price by a fraction of which the numerator shall be the number of shares of
Common Stock outstanding at the close of business on the date fixed for such
determination and the denominator shall be the sum of such number of shares and
the total number of shares constituting such dividend or other distribution,
such reduction to become effective immediately after the opening of business on
the day following the date fixed for such determination. For the purposes of
this paragraph (1), the number of shares of Common Stock at any time
outstanding shall not include shares held in the treasury of the Company but
shall include shares issuable in respect of scrip certificates issued in lieu
of fractions of shares of Common Stock. The Company will not pay any dividend
or make any distribution on shares of Common Stock held in the treasury of the
Company.

          (2)  In case the Company shall issue rights or warrants to all
holders of its Common Stock entitling them to subscribe for or purchase shares
of Common Stock at a price per share less than the current market price per
share (determined as provided in paragraph (8) of this Section) of the Common
Stock on the date fixed for the determination of stockholders entitled to
receive such rights or warrants, the Conversion Price in effect at the opening
of business on the day following the date fixed for such determination shall be
reduced by multiplying such Conversion Price by a fraction of which the
numerator shall be the number of shares of Common Stock outstanding at the
close of business  on the date fixed for such determination plus the number of
shares of Common Stock which the aggregate of the offering price of the total
number of shares of Common Stock so offered for subscription or purchase would
purchase at such current market price and the denominator shall be the number
of shares of Common Stock outstanding at the close of business on the date
fixed for such determination plus the number of shares of Common Stock so
offered for subscription or purchase, such reduction to become effective
immediately after the opening of business on the day following the date fixed
for such determination. For the purposes of this paragraph (2), the number of
shares of Common Stock at any time outstanding shall not include shares held in
the treasury of the Company but shall include shares issuable in respect of
scrip certificates issued in lieu of fractions of shares of Common Stock. The
Company will not issue any rights or warrants in respect of shares of Common
Stock held in the treasury of the Company.





                                      -65-
<PAGE>   74
          (3)  In case outstanding shares of Common Stock shall be subdivided
into a greater number of shares of Common Stock, the Conversion Price in effect
at the opening of business on the day following the day upon which such
subdivision becomes effective shall be proportionately reduced, and,
conversely, in case outstanding shares of Common Stock shall each be combined
into a smaller number of shares of Common Stock, the Conversion Price in effect
at the opening of business on the day following the day upon which such
combination becomes effective shall be proportionately increased, such
reduction or increase, as the case may be, to become effective immediately
after the opening of business on the day following the day upon which such
subdivision or combination becomes effective.

          (4)  In case the Company shall, by dividend or otherwise, distribute
to all holders of its Common Stock evidences of its indebtedness or assets
(including securities, but excluding any rights or warrants referred to in
paragraph (2) of this Section, any dividend or distribution paid in cash out of
the retained surplus of the Company and any dividend or distribution referred
to in paragraph (1) of this Section), the conversion price shall be adjusted so
that the same shall equal the price determined by multiplying the Conversion
Price in effect immediately prior to the close of business on the date fixed
for the determination of stockholders entitled to receive such distribution by
a fraction of which the numerator shall be the current market price per share
(determined as provided in paragraph (8) of this Section) of the Common Stock
on the date fixed for such determination less the then fair market value (as
determined by the Board of Directors, whose determination shall be conclusive
and described in a Board Resolution filed with the Trustee) of the portion of
the assets or evidences of indebtedness so distributed applicable to one share
of Common Stock and the denominator shall be such current market price per
share of the Common Stock, such adjustment to become effective immediately
prior to the opening of business on the day following the date fixed for the
determination of stockholders entitled to receive such distribution.

          (5)  In case the Company shall, by dividend or otherwise, distribute
to all holders of its Common Stock cash (excluding any cash that is distributed
upon a merger or consolidation to which Section 1211 applies or as part of a
distribution referred to in paragraph (4) of this Section) in an aggregate
amount that, combined together with (I) the aggregate amount of any other cash
distributions to all holders of its Common Stock made exclusively in cash
within the 12 months preceding the date of payment of such distribution and in
respect of which no adjustment pursuant to this paragraph (5) has been made and
(II) the aggregate of any cash plus the fair market value (as determined by the
Board of Directors, whose determination shall be conclusive and described in a
Board Resolution) of other consideration payable in respect of any tender offer
(of the type described paragraph (6) below) by the Company or any of its
subsidiaries for all or any portion of the Common Stock concluded within the 12
months preceding the date of payment of such distribution and in respect of
which no adjustment pursuant to paragraph (6) of this Section has been made,
exceeds 10% of the product of the current market price per share of the Common
Stock on the date for the determination of holders of shares of Common Stock
entitled to receive such distribution times the number of shares of all classes
of Common Stock outstanding on such date, then, and in each such case,
immediately after the close of business on such date for determination, the
Conversion





                                      -66-
<PAGE>   75
Price shall be adjusted so that the same shall equal the price determined by
multiplying the Conversion Price in effect immediately prior to the close of
business on the date fixed for determination of the stockholders entitled to
receive such distribution by a fraction (i) the numerator of which shall be
equal to the current market price per share (determined as provided in
paragraph (8) of this Section) of the Common Stock on the date fixed for such
determination less an amount equal to the quotient of (x) the excess of such
combined amount over such 10% and (y) the number of shares of Common Stock
outstanding on such date for determination and (ii) the denominator of which
shall be equal to the current market price per share (determined as provided in
paragraph (8) of this Section) of the Common Stock on such date for
determination.

          (6)  In case, after the date of this Indenture, a tender or exchange
offer (other than an odd-lot offer) made by the Company or any Subsidiary for
all or any portion of the Common Stock shall expire and such tender or exchange
offer shall involve the payment by the Company or such Subsidiary of
consideration per share of the Common Stock having a fair market value (as
determined in good faith by the Board of Directors, whose determination shall be
conclusive and described in a Board Resolution) at the last time (the
"Expiration Time") tenders or exchanges may be made pursuant to such tender or
exchange offer (as it shall have been amended) that exceeds 110% of the current
market price per share (determined as provided in paragraph (8) of this Section)
of the Common Stock as of the Trading Day next succeeding the Expiration Time,
the Conversion Price shall be reduced so that the same shall equal the price
determined by multiplying the Conversion Price in effect immediately prior to
the effectiveness of the Conversion Price reduction contemplated by this
subparagraph (6) by a fraction of which the numerator shall be the sum of the
products of the number of shares of the Common Stock outstanding (including any
tendered or exchanged shares) at the Expiration Time multiplied by the
respective current market price per share (determined as provided in paragraph
(8) of this Section) of the Common Stock on the Trading Day next succeeding the
Expiration Time and the denominator shall be the sum of (x) the fair market
value (determined as aforesaid) of the aggregate consideration payable to
stockholders based on the acceptance (up to any maximum specified in the terms
of the tender or exchange offer) of all shares validly tendered or exchanged and
not withdrawn as of the Expiration Time (the shares deemed so accepted, up to
any such maximum, being referred to as the "Purchased Shares") and (y) the
product of the number of shares of the Common Stock outstanding (less any
Purchased Shares) at the Expiration Time and the current market price per share
(determined as provided in paragraph (8) of this Section) of the Common Stock on
the Trading Day next succeeding the Expiration Time, such reduction to become
effective immediately prior to the opening of business on the day following the
Expiration Time.

          (7)  The reclassification of Common Stock into securities other than
Common Stock (other than any reclassification upon a consolidation or merger to
which Section 1211 applies) shall be deemed to involve (a) a distribution of
such securities other than Common Stock to all holders of Common Stock (and the
effective date of such reclassification shall be deemed to be "the date fixed
for the determination of stockholders entitled to receive such distribution"
and "the date fixed for such determination" with the meaning of paragraph (4)
of this Section), and (b) a subdivision





                                      -67-
<PAGE>   76
or combination, as the case may be, of the number of shares of Common Stock
outstanding immediately prior to such reclassification into the number of
shares of Common Stock outstanding immediately thereafter (and the effective
date of such reclassification shall be deemed to be "the day upon which such
subdivision becomes effective" or "the day upon which such combination becomes
effective", as the case may be, and "the day upon which such subdivision or
combination becomes effective" within the meaning of paragraph (3) of this
Section).

          (8)  For the purpose of computation under paragraphs (2), (4), (5)
and (6) of this Section, the current market price per share of Common Stock on
any date shall be deemed to be the average of the daily closing prices for the
15 consecutive Business Days selected by the Company commencing not less than
20 nor more than 30 Business Days before the day in question. The closing price
for each day shall be the last reported sales price regular way on the
composite tape or, in case no such reported sale takes place on such day, the
average of the reported closing bid and asked prices regular way, in either
case on the New York Stock Exchange or, if the Common Stock is not listed or
admitted to trading on such Exchange, on the principal national securities
exchange on which the Common Stock is listed or admitted to trading or, if not
listed or admitted to trading on any national securities exchange, the average
of the closing bid and asked prices as furnished by any New York Stock Exchange
member firm selected from time to time by the Company for that purpose.

          (9)  The Company may make such reductions in the Conversion Price, in
addition to those required by paragraphs (1), (2), (3), (4), (5) and (6) of
this Section, as it considers to be advisable in order that any event treated
for Federal income tax purposes as a dividend of stock or stock rights shall
not be taxable to the recipients.

          (10)  Notwithstanding the provisions of this Article, the Conversion
Price per share shall not be reduced to less than the par value thereof as a
result of any adjustment made hereunder unless, under applicable law then in
effect, Securities may be converted, at such lower Conversion Price, into
legally issued fully-paid and nonassessable shares of Common Stock.

          (11)  The granting of the right to purchase shares of Common Stock
(whether from treasury shares or otherwise) pursuant to any dividend or
interest reinvestment plan and/or any Common Stock purchase plan providing for
the reinvestment of dividends or interest payable on securities of the Company
and/or the investment of periodic optional payments and/or stock option plans
and/or employee benefit or similar plans at a price per share of not less than
95 percent of the current market price per share (determined as provided in
such plans) of the Common Stock (so long as such right to purchase is in no
case evidenced by the delivery of rights or warrants) shall not be deemed to
constitute an issue of rights or warrants by the Company.

          (12)  No adjustment in the Conversion Price shall be required unless
such adjustment would require an increase or decrease of at least one percent
in such Conversion Price; provided, however, that any adjustment which by
reason of this paragraph (12) is not required to be made shall be carried
forward and taken into account





                                      -68-
<PAGE>   77
in any subsequent adjustment. All calculations under this Article shall be made
to the nearest cent or to the nearest 1/100 of a share, as the case may be.


SECTION 1205.  Notice of Adjustments of Conversion Price.

          Whenever the Conversion Price is adjusted as herein provided:

          (a)  the Company shall compute the adjusted Conversion Price in
     accordance with Section 1204 and shall prepare a certificate signed by the
     principal financial officer or principal accounting officer of the Company
     setting forth the adjusted Conversion Price and showing in reasonable
     detail the facts upon which such adjustment is based, and such certificate
     shall forthwith be filed at the Corporate Trust Office of the Trustee and
     at each office or agency maintained for the purpose of conversion of
     Securities pursuant to Section 1002; and

          (b)  a notice stating that the Conversion Price has been adjusted and
     setting forth the adjusted Conversion Price shall forthwith be required,
     and as soon as practicable after it is required, such notice shall be
     mailed by the Company to all Holders at their last addresses as they shall
     appear in the Security Register.


SECTION 1206.  Notice of Certain Corporate Action.

          In case:

          (a)  the Company shall declare a dividend (or any other distribution)
     on its Common Stock payable otherwise than in cash out of its earned
     surplus; or

          (b)  the Company shall authorize the granting to all holders of its
     Common Stock of rights or warrants to subscribe for or purchase any shares
     of capital stock of any class or of any other rights; or

          (c)  of any reclassification of the Common Stock of the Company
     (other than a subdivision or combination of its outstanding shares of
     Common Stock), or of any consolidation or merger to which the Company is a
     party and for which approval of any stockholders of the Company is
     required, or of the sale or transfer of all or substantially all of the
     assets of the Company; or

          (d)  of the voluntary or involuntary dissolution, liquidation or
     winding up of the Company;

then the Company shall cause to be filed at each office or agency maintained
for the purpose of conversion of Securities pursuant to Section 1002, and shall
cause to be mailed to all Holders at their last addresses as they shall appear
in the Security Register, at least 20 days (or 10 days in any case specified in
Clause (a) or (b) above) prior to the applicable record date hereinafter
specified, a notice stating (x) the date on which a





                                      -69-
<PAGE>   78
record is to be taken for the purpose of such dividend, distribution, rights or
warrants, or, if a record is not to be taken, the date as of which the holders
of Common Stock of record to be entitled to such dividend, distribution, rights
or warrants are to be determined, or (y) the date on which such
reclassification, consolidation, merger, sale, transfer, dissolution,
liquidation or winding up is expected to become effective, and the date as of
which it is expected that holders of Common Stock of record shall be entitled
to exchange their shares of Common Stock for securities, cash or other
property, if any, deliverable upon such reclassification, consolidation,
merger, sale, transfer, dissolution, liquidation or winding up. The failure to
give notice required by this Section or any defect therein shall not affect the
legality or validity of any dividend, distribution, rights, warrants,
reclassification, consolidation, merger, sale, transfer, dissolution,
liquidation or winding up, or the vote on any such action.


SECTION 1207.  Company to Reserve Common Stock.

          The Company shall at all times reserve and keep available, free from
pre-emptive rights, out of its authorized but unissued Common Stock, for the
purpose of effecting the conversion of Securities, the full number of shares of
Common Stock then issuable upon the conversion of all Outstanding Securities.


SECTION 1208.  Taxes on Conversions.

          The Company will pay any and all taxes that may be payable in respect
of the issue or delivery of shares of Common Stock on conversion of Securities
pursuant hereto. The Company shall not, however, be required to pay any tax
which may be payable in respect of any transfer involved in the issue and
delivery of shares of Common Stock in a name other than that of the Holder of
the Security or Securities to be converted, and no such issue or delivery shall
be made unless and until the person requesting such issue has paid to the
Company the amount of any such tax, or has established to the satisfaction of
the Company that such tax has been paid.


SECTION 1209.  Covenant as to Common Stock.

          The Company covenants that all shares of Common Stock which may be
issued upon conversion of Securities will upon issue be fully paid and
nonassessable and, except as provided in Section 1208, the Company will pay all
taxes, liens and charges with respect to the issue thereof.


SECTION 1210.  Cancellation of Converted Securities.

          All Securities delivered for conversion shall be delivered to the
Trustee to be cancelled by or at the direction of the Trustee, which shall
dispose of the same as provided in Section 309.





                                      -70-
<PAGE>   79

SECTION 1211.  Provisions in Case of Consolidation, Merger or Sale of Assets.

          In case of any consolidation of the Company with, or merger of the
Company into, any other Person, or in case of any merger of another Person into
the Company (other than a merger which does not result in any reclassification,
conversion, exchange or cancellation of outstanding shares of Common Stock of
the Company), or in case of any sale or transfer of all or substantially all of
the assets of the Company, the Person formed by such consolidation or resulting
from such merger or which acquires such assets, as the case may be, shall
execute and deliver to the Trustee a supplemental indenture providing that the
Holder of each convertible Security then Outstanding shall have the right
thereafter, during the period such Security shall be convertible as specified
in Section 1201, to convert such Security only into the kind and amount of
securities, cash and other property receivable upon such consolidation, merger,
sale or transfer by a holder of the number of shares of Common Stock of the
Company into which such Security might have been converted immediately prior to
such consolidation, merger, sale or transfer, assuming such holder of Common
Stock of the Company failed to exercise his rights of election, if any, as to
the kind or amount of securities, cash and other property receivable upon such
consolidation, merger, sale or transfer (provided that if the kind or amount of
securities, cash and other property receivable upon such consolidation, merger,
sale or transfer is not the same for each share of Common Stock of the Company
in respect of which such rights of election shall not have been exercised
("non-electing share"), then for the purpose of this Section the kind and
amount of securities, cash and other property receivable upon such
consolidation, merger, sale or transfer by each non-electing share shall be
deemed to be the kind and amount so receivable per share by a plurality of the
non-electing shares).

          Such supplemental indenture shall provide for adjustments which, for
events subsequent to the effective date of such supplemental indenture shall be
as nearly equivalent as may be practicable to the adjustments provided for in
this Article. The above provisions of this Section shall similarly apply to
successive consolidations, mergers, sales or transfers.


SECTION 1212.  Responsibility of Trustee.

          Neither the Trustee nor any conversion agent shall at any time be
under any duty or responsibility to any Holder of Securities to determine
whether any fact exists which may require any adjustment of the Conversion
Price, or with respect to the nature or extent of any such adjustment when
made, or with respect to the method employed, or herein or in any supplemental
indenture provided to be employed, in making the same. Neither the Trustee nor
any conversion agent shall be accountable with respect to the registration,
validity or value (or the kind or amount) of any shares of Common Stock, or of
any securities or property, which may at any time be issued or delivered upon
the conversion of any Security; and neither the Trustee nor any conversion
agent makes any representation with respect thereto. Neither the Trustee nor
any conversion agent shall be responsible for any failure of the Company to
issue or transfer or deliver any





                                      -71-
<PAGE>   80
Common Stock or stock certificates or other securities or property or to make
any cash payment upon the surrender of any Security for the purpose of
conversion or to comply with any of the covenants of the Company contained in
this Article Twelve.


                                ARTICLE THIRTEEN

                                 SINKING FUNDS


SECTION 1301.  Applicability of Article.

          The provisions of this Article shall be applicable to any sinking
fund for the retirement of Securities of any series except as otherwise
specified as contemplated by Section 301 for such Securities.

          The minimum amount of any sinking fund payment provided for by the
terms of any Securities is herein referred to as a "mandatory sinking fund
payment," and any payment in excess of such minimum amount provided for by the
terms of such Securities is herein referred to as an "optional sinking fund
payment." If provided for by the terms of any Securities, the cash amount of
any sinking fund payment may be subject to reduction as provided in Section
1302. Each sinking fund payment shall be applied to the redemption of
Securities as provided for by the terms of such Securities.


SECTION 1302.  Satisfaction of Sinking Fund Payments with Securities.

          The Company (1) may deliver Outstanding Securities of a series (other
than any previously called for redemption) and (2) may apply as a credit
Securities of a series which have been redeemed either at the election of the
Company pursuant to the terms of such Securities or through the application of
permitted optional sinking fund payments pursuant to the terms of such
Securities, in each case in satisfaction of all or any part of any sinking fund
payment with respect to any Securities of such series required to be made
pursuant to the terms of such Securities as and to the extent provided for by
the terms of such Securities; provided that the Securities to be so credited
have not been previously so credited. The Securities to be so credited shall be
received and credited for such purpose by the Trustee at the Redemption Price,
as specified in the Securities so to be redeemed, for redemption through
operation of the sinking fund and the amount of such sinking fund payment shall
be reduced accordingly.


SECTION 1303.  Redemption of Securities for Sinking Fund.

          Not less than 60 days prior to each sinking fund payment date for any
Securities, the Company  will deliver to the Trustee an Officers' Certificate
specifying the amount of the next ensuing sinking fund payment for such
Securities pursuant to the terms of such Securities, the portion thereof, if
any, which is to be satisfied by payment





                                      -72-
<PAGE>   81
of cash and the portion thereof, if any, which is to be satisfied by delivering
and crediting Securities pursuant to Section 1302 and will also deliver to the
Trustee any Securities to be so delivered. Not less than 45 days prior to each
such sinking fund payment date, the Trustee shall select the Securities to be
redeemed upon such sinking fund payment date in the manner specified in Section
1103 and cause notice of the redemption thereof to be given in the name of and
at the expense of the Company in the manner provided in Section 1104. Such
notice having been duly given, the redemption of such Securities shall be made
upon the terms and in the manner stated in Sections 1106 and 1107.

                                ARTICLE FOURTEEN

                       DEFEASANCE AND COVENANT DEFEASANCE


SECTION 1401.  Company's Option to Effect Defeasance or Covenant Defeasance.

          The Company may elect, at its option at any time, to have Section
1402 or Section 1403 applied to any Securities or any series of Securities, as
the case may be, designated pursuant to Section 301 as being defeasible
pursuant to such Section 1402 or 1403, in accordance with any applicable
requirements provided pursuant to Section 301 and upon compliance with the
conditions set forth below in this Article. Any such election shall be
evidenced by a Board Resolution or in another manner specified as contemplated
by Section 301 for such Securities.


SECTION 1402.  Defeasance and Discharge.

          Upon the Company's exercise of its option (if any) to have this
Section applied to any Securities or any series of Securities, as the case may
be, the Company shall be deemed to have been discharged from its obligations
with respect to such Securities as provided in this Section on and after the
date the conditions set forth in Section 1404 are satisfied (hereinafter called
"Defeasance"). For this purpose, such Defeasance means that the Company shall
be deemed to have paid and discharged the entire indebtedness represented by
such Securities and to have satisfied all its other obligations under such
Securities and this Indenture insofar as such Securities are concerned (and the
Trustee, at the expense of the Company, shall execute proper instruments
acknowledging the same), subject to the following which shall survive until
otherwise terminated or discharged hereunder: (1) the rights of Holders of such
Securities to receive, solely from the trust fund described in Section 1404 and
as more fully set forth in such Section, payments in respect of the principal
of and any premium and interest on such Securities when payments are due, (2)
the Company's obligations with respect to such Securities under Sections 304,
305, 306, 1002 and 1003, (3) the rights, powers, trusts, duties and immunities
of the Trustee hereunder and (4) this Article. Subject to compliance with this
Article, the Company may exercise its option (if any) to have this Section
applied to any Securities notwithstanding the prior exercise of its option (if
any) to have Section 1403 applied to such Securities.





                                      -73-
<PAGE>   82

SECTION 1403.  Covenant Defeasance.

          Upon the Company's exercise of its option (if any) to have this
Section applied to any Securities or any series of Securities, as the case may
be, (1) the Company shall be released from its obligations under Section
801(3), Sections 1006 through 1009, inclusive, and any covenants provided
pursuant to Section 301(18), 901(2) or 901(7) for the benefit of the Holders of
such Securities and (2) the occurrence of any event specified in Sections
501(4) (with respect to any of Section 801(3), Sections 1006 through 1009,
inclusive, and any such covenants provided pursuant to Section 301(18), 901(2)
or 901(7)), 501(5) and 501(8) shall be deemed not to be or result in an Event
of Default, in each case with respect to such Securities as provided in this
Section on and after the date the conditions set forth in Section 1404 are
satisfied (hereinafter called "Covenant Defeasance"). For this purpose, such
Covenant Defeasance means that, with respect to such Securities, the Company
may omit to comply with and shall have no liability in respect of any term,
condition or limitation set forth in any such specified Section (to the extent
so specified in the case of Section 501(4)), whether directly or indirectly by
reason of any reference elsewhere herein to any such Section or by reason of
any reference in any such Section to any other provision herein or in any other
document, but the remainder of this Indenture and such Securities shall be
unaffected thereby.


SECTION 1404.  Conditions to Defeasance or Covenant Defeasance.

          The following shall be the conditions to the application of Section
1402 or Section 1403 to any Securities or any series of Securities, as the case
may be:

          (1)  The Company shall irrevocably have deposited or caused to be
     deposited with the Trustee (or another trustee which satisfies the
     requirements contemplated by Section 609 and agrees to comply with the
     provisions of this Article applicable to it) as trust funds in trust for
     the purpose of making the following payments, specifically pledged as
     security for, and dedicated solely to, the benefits of the Holders of such
     Securities, (A) money in an amount, or (B) U.S. Government Obligations
     which through the scheduled payment of principal and interest in respect
     thereof in accordance with their terms will provide, not later than one
     day before the due date of any payment, money in an amount, or (C) a
     combination thereof, in each case sufficient, in the opinion of a
     nationally recognized firm of independent public accountants expressed in
     a written certification thereof delivered to the Trustee, to pay and
     discharge, and which shall be applied by the Trustee (or any such other
     qualifying trustee) to pay and discharge, the principal of and any premium
     and interest on such Securities on the respective Stated Maturities, in
     accordance with the terms of this Indenture and such Securities. As used
     herein, "U.S. Government Obligation" means (x) any security which is (i)
     a direct obligation of the United States of America for the payment of
     which the full faith and credit of the United States of America is pledged
     or (ii) an obligation of a Person controlled or supervised by and acting
     as an agency or instrumentality of the United States of America the
     payment of which is unconditionally guaranteed as a





                                      -74-
<PAGE>   83
     full faith and credit obligation by the United States of America, which,
     in either case (i) or (ii), is not callable or redeemable at the option of
     the issuer thereof, and (y) any depositary receipt issued by a bank (as
     defined in Section 3(a)(2) of the Securities Act) as custodian with
     respect to any U.S. Government Obligation which is specified in Clause (x)
     above and held by such bank for the account of the holder of such
     depositary receipt, or with respect to any specific payment of principal
     of or interest on any U.S. Government Obligation which is so specified and
     held, provided that (except as required by law) such custodian is not
     authorized to make any deduction from the amount payable to the holder of
     such depositary receipt from any amount received by the custodian in
     respect of the U.S. Government Obligation or the specific payment of
     principal or interest evidenced by such depositary receipt.

          (2)  In the event of an election to have Section 1402 apply to any
     Securities or any series of Securities, as the case may be, the Company
     shall have delivered to the Trustee an Opinion of Counsel stating that (A)
     the Company has received from, or there has been published by, the
     Internal Revenue Service a ruling or (B) since the date of this
     instrument, there has been a change in the applicable Federal income tax
     law, in either case (A) or (B) to the effect that, and based thereon such
     opinion shall confirm that, the Holders of such Securities will not
     recognize gain or loss for Federal income tax purposes as a result of the
     deposit, Defeasance and discharge to be effected with respect to such
     Securities and will be subject to Federal income tax on the same amount,
     in the same manner and at the same times as would be the case if such
     deposit, Defeasance and discharge were not to occur.

          (3)  In the event of an election to have Section 1403 apply to any
     Securities or any series of Securities, as the case may be, the Company
     shall have delivered to the Trustee an Opinion of Counsel to the effect
     that the Holders of such Securities will not recognize gain or loss for
     Federal income tax purposes as a result of the deposit and Covenant
     Defeasance to be effected with respect to such Securities and will be
     subject to Federal income tax on the same amount, in the same manner and
     at the same times as would be the case if such deposit and Covenant
     Defeasance were not to occur.

          (4)  The Company shall have delivered to the Trustee an Officer's
     Certificate to the effect that neither such Securities nor any other
     Securities of the same series, if then listed on any securities exchange,
     will be delisted as a result of such deposit.

          (5)  No event which is, or after notice or lapse of time or both
     would become, an Event of Default with respect to such Securities or any
     other Securities shall have occurred and be continuing at the time of such
     deposit or, with regard to any such event specified in Sections 501(6) and
     (7), at any time on or prior to the 90th day after the date of such
     deposit (it being understood that this condition shall not be deemed
     satisfied until after such 90th day).

          (6)  Such Defeasance or Covenant Defeasance shall not cause the
     Trustee to have a conflicting interest within the meaning of the Trust
     Indenture Act (assuming all Securities are in default within the meaning
     of such Act).





                                      -75-
<PAGE>   84
          (7)  Such Defeasance or Covenant Defeasance shall not result in a
     breach or violation of, or constitute a default under, any other agreement
     or instrument to which the Company is a party or by which it is bound.

          (8)  Such Defeasance or Covenant Defeasance shall not result in the
     trust arising from such deposit constituting an investment company within
     the meaning of the Investment Company Act unless such trust shall be
     registered under such Act or exempt from registration thereunder.

          (9)  The Company shall have delivered to the Trustee an Officer's
     Certificate and an Opinion of Counsel, each stating that all conditions
     precedent with respect to such Defeasance or Covenant Defeasance have been
     complied with.


SECTION 1405.  Deposited Money and U.S. Government Obligations to Be Held in
               Trust; Miscellaneous Provisions.

          Subject to the provisions of the last paragraph of Section 1003, all
money and U.S. Government Obligations (including the proceeds thereof)
deposited with the Trustee or other qualifying trustee (solely for purposes of
this Section and Section 1406, the Trustee and any such other trustee are
referred to collectively as the "Trustee") pursuant to Section 1404 in respect
of any Securities shall be held in trust and applied by the Trustee, in
accordance with the provisions of such Securities and this Indenture, to the
payment, either directly or through any such Paying Agent (including the
Company acting as its own Paying Agent) as the Trustee may determine, to the
Holders of such Securities, of all sums due and to become due thereon in
respect of principal and any premium and interest, but money so held in trust
need not be segregated from other funds except to the extent required by law.

          The Company shall pay and indemnify the Trustee against any tax, fee
or other charge imposed on or assessed against the U.S. Government Obligations
deposited pursuant to Section 1404 or the principal and interest received in
respect thereof other than any such tax, fee or other charge which by law is
for the account of the Holders of Outstanding Securities.

          Anything in this Article to the contrary notwithstanding, the Trustee
shall deliver or pay to the Company from time to time upon Company Request any
money or U.S. Government Obligations held by it as provided in Section 1404
with respect to any Securities which, in the opinion of a nationally recognized
firm of independent public accountants expressed in a written certification
thereof delivered to the Trustee, are in excess of the amount thereof which
would then be required to be deposited to effect the Defeasance or Covenant
Defeasance, as the case may be, with respect to such Securities.





                                      -76-
<PAGE>   85
SECTION 1406.  Reinstatement.

          If the Trustee or the Paying Agent is unable to apply any money in
accordance with this Article with respect to any Securities by reason of any
order or judgment of any court or governmental authority enjoining, restraining
or otherwise prohibiting such application, then the obligations under this
Indenture and such Securities from which the Company has been discharged or
released pursuant to Section 1402 or 1403 shall be revived and reinstated as
though no deposit had occurred pursuant to this Article with respect to such
Securities, until such time as the Trustee or Paying Agent is permitted to
apply all money held in trust pursuant to Section 1405 with respect to such
Securities in accordance with this Article; provided, however, that if the
Company makes any payment of principal of or any premium or interest on any
such Security following such reinstatement of its obligations, the Company
shall be subrogated to the rights (if any) of the Holders of such Securities to
receive such payment from the money so held in trust.


                         _____________________________





                                      -77-
<PAGE>   86
          This instrument may be executed in any number of counterparts, each
of which so executed shall be deemed to be an original, but all such
counterparts shall together constitute but one and the same instrument.

          In Witness Whereof, the parties hereto have caused this Indenture to
be duly executed, and their respective corporate seals to be hereunto affixed
and attested, all as of the day and year first above written.


                                              BECKMAN INSTRUMENTS, INC.


                                              By________________________________

Attest:


___________________________________


                                              THE FIRST NATIONAL BANK OF CHICAGO


                                              By________________________________

Attest:


__________________________________





                                      -78-
<PAGE>   87
STATE OF NEW YORK              )
                               )    ss.:
COUNTY OF NEW YORK             )


          On the ___ day of ________, ____, before me personally came
___________________, to me known, who, being by me duly sworn, did depose and
say that he is ______________ of ____________________________, one of the
corporations described in and which executed the foregoing instrument; that he
knows the seal of said corporation; that the seal affixed to said instrument is
such corporate seal; that it was so affixed by authority of the Board of
Directors of said corporation; and that he signed his name thereto by like
authority.



                                                ________________________________


STATE OF NEW YORK              )
                               )    ss.:
COUNTY OF NEW YORK             )


                    On the ___ day of ________, ____, before me personally came
___________________, to me known, who, being by me duly sworn, did depose and
say that he is ______________ of ____________________________, one of the
corporations described in and which executed the foregoing instrument; that he
knows the seal of said corporation; that the seal affixed to said instrument is
such corporate seal; that it was so affixed by authority of the Board of
Directors of said corporation; and that he signed his name thereto by like
authority.



                                                ________________________________





                                      -79-

<PAGE>   1





                                                                     EXHIBIT 4.2

                                                          Draft of April 4, 1996



===============================================================================

                           BECKMAN INSTRUMENTS, INC.

                                      AND

                       THE FIRST NATIONAL BANK OF CHICAGO
                                    Trustee



                                 ______________


                             SUBORDINATED INDENTURE

                         Dated as of ___________, 1996


                                 ______________

===============================================================================

<PAGE>   2

         ..............................................................
    CERTAIN SECTIONS OF THIS INDENTURE RELATING TO SECTIONS 310 THROUGH 318,
                 INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939:

<TABLE>
<CAPTION>
                  TRUST INDENTURE
                    ACT SECTION                                                                  INDENTURE SECTION
                  <S>      <C>                                                                   <C>
                  Section  310(a)(1)      . . . . . . . . . . . . . . . . . . . . . . . . . .    609
                              (a)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . .    609
                              (a)(3)      . . . . . . . . . . . . . . . . . . . . . . . . . .    Not Applicable
                              (a)(4)      . . . . . . . . . . . . . . . . . . . . . . . . . .    Not Applicable
                              (b)         . . . . . . . . . . . . . . . . . . . . . . . . . .    608
                                                                                                 610
                  Section  311(a)         . . . . . . . . . . . . . . . . . . . . . . . . . .    613
                              (b)         . . . . . . . . . . . . . . . . . . . . . . . . . .    613
                  Section  312(a)         . . . . . . . . . . . . . . . . . . . . . . . . . .    701
                                                                                                 702
                              (b)         . . . . . . . . . . . . . . . . . . . . . . . . . .    702
                              (c)         . . . . . . . . . . . . . . . . . . . . . . . . . .    702
                  Section  313(a)         . . . . . . . . . . . . . . . . . . . . . . . . . .    703
                              (b)         . . . . . . . . . . . . . . . . . . . . . . . . . .    703
                              (c)         . . . . . . . . . . . . . . . . . . . . . . . . . .    703
                              (d)         . . . . . . . . . . . . . . . . . . . . . . . . . .    703
                  Section  314(a)         . . . . . . . . . . . . . . . . . . . . . . . . . .    704
                              (a)(4)      . . . . . . . . . . . . . . . . . . . . . . . . . .    101
                                                                                                 1004
                              (b)         . . . . . . . . . . . . . . . . . . . . . . . . . .    Not Applicable
                              (c)(1)      . . . . . . . . . . . . . . . . . . . . . . . . . .    102
                              (c)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . .    102
                              (c)(3)      . . . . . . . . . . . . . . . . . . . . . . . . . .    Not Applicable
                              (d)         . . . . . . . . . . . . . . . . . . . . . . . . . .    Not Applicable
                              (e)         . . . . . . . . . . . . . . . . . . . . . . . . . .    102
                  Section  315(a)         . . . . . . . . . . . . . . . . . . . . . . . . . .    601
                              (b)         . . . . . . . . . . . . . . . . . . . . . . . . . .    602
                              (c)         . . . . . . . . . . . . . . . . . . . . . . . . . .    601
                              (d)         . . . . . . . . . . . . . . . . . . . . . . . . . .    601
                              (e)         . . . . . . . . . . . . . . . . . . . . . . . . . .    514
                  Section  316(a)         . . . . . . . . . . . . . . . . . . . . . . . . . .    101
                              (a)(1) (A)  . . . . . . . . . . . . . . . . . . . . . . . . . .    502
                                                                                                 512
                              (a)(1) (B)  . . . . . . . . . . . . . . . . . . . . . . . . . .    513
                              (a)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . .    Not Applicable
                              (b)         . . . . . . . . . . . . . . . . . . . . . . . . . .    508
                              (c)         . . . . . . . . . . . . . . . . . . . . . . . . . .    104
                  Section  317(a)(1)      . . . . . . . . . . . . . . . . . . . . . . . . . .    503
                              (a)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . .    504
                              (b)         . . . . . . . . . . . . . . . . . . . . . . . . . .    1003
                  Section  318(a)         . . . . . . . . . . . . . . . . . . . . . . . . . .    107
</TABLE>

___________________
NOTE:  This reconciliation and tie shall not, for any purpose, be deemed to be
       a part of the Indenture.
<PAGE>   3

                              TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                            PAGE
                                                                                                                            ----
<S>                                                                                                                           <C>
RECITALS OF THE COMPANY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1

                                                          ARTICLE ONE

                                                DEFINITIONS AND OTHER PROVISIONS
                                                     OF GENERAL APPLICATION

SECTION 101.   Definitions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
     Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
     Affiliate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
     Attributable Value   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
     Authenticating Agent   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
     Board of Directors   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
     Board Resolution   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
     Business Day   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
     Commission   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     Company  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     Company Request  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     Company Order  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     Consolidated Net Tangible Assets   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     Conversion Price   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     Corporate Trust Office   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     corporation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     Covenant Defeasance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     Defaulted Interest   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     Defeasance   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     Depositary   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     Equipment Held for Resale  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     Event of Default   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     Exchange Act   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     Expiration Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     Global Security  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     Holder   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     Indenture  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     interest   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     Interest Payment Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     Investment Company Act   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     Lien   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     Maturity   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     Notice of Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
     Officers' Certificate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
</TABLE>





___________________
NOTE:  This table of contents shall not, for any purpose, be deemed to be a
       part of the Indenture.

                                      -i-
<PAGE>   4

<TABLE>
<CAPTION>
                                                                                                                            PAGE
                                                                                                                            ----
<S>                                                                                                                          <C>
     Opinion of Counsel   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
     Original Issue Discount Security   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
     Outstanding  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
     Paying Agent   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     Person   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     Place of Payment   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     Predecessor Security   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     Principal Property   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     Redemption Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     Redemption Price   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     Regular Record Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     Responsible Officer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     Restricted Subsidiary  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     Securities   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     Securities Act   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     Security Register  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     Security Registrar   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     Senior Indebtedness  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     indebtedness for money borrowed  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     Special Record Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
     Stated Maturity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
     Subsidiary   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
     Trust Indenture Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
     Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
     U.S. Government Obligation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
     Vice President   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
SECTION 102.   Compliance Certificates and Opinions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
SECTION 103.   Form of Documents Delivered to Trustee   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   9
SECTION 104.   Acts of Holders; Record Dates  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
SECTION 105.   Notices, Etc., to Trustee and Company  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
SECTION 106.   Notice to Holders; Waiver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
SECTION 107.   Conflict with Trust Indenture Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 108.   Effect of Headings and Table of Contents   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 109.   Successors and Assigns   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 110.   Separability Clause  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 111.   Benefits of Indenture  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 112.   Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
SECTION 113.   Legal Holidays   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13


                                                          ARTICLE TWO

                                                         SECURITY FORMS

SECTION 201.   Forms Generally  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
</TABLE>





                                      -ii-
<PAGE>   5


<TABLE>
<CAPTION>
                                                                                                                            PAGE
                                                                                                                            ----
<S>            <C>                                                                                                           <C>
SECTION 202.   Form of Face of Security   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
SECTION 203.   Form of Reverse of Security  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
SECTION 204.   Form of Legend for Global Securities   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22
SECTION 205.   Form of Trustee's Certificate of Authentication  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22


                                                         ARTICLE THREE

                                                         THE SECURITIES

SECTION 301.   Amount Unlimited; Issuable in Series   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22
SECTION 302.   Denominations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
SECTION 303.   Execution, Authentication, Delivery and Dating   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
SECTION 304.   Temporary Securities   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
SECTION 305.   Registration, Registration of Transfer and Exchange  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
SECTION 306.   Mutilated, Destroyed, Lost and Stolen Securities   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
SECTION 307.   Payment of Interest; Interest Rights Preserved   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
SECTION 308.   Persons Deemed Owners  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
SECTION 309.   Cancellation   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
SECTION 310.   Computation of Interest  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32


                                                          ARTICLE FOUR

                                                   SATISFACTION AND DISCHARGE

SECTION 401.   Satisfaction and Discharge of Indenture  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32
SECTION 402.   Application of Trust Money   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33


                                                          ARTICLE FIVE

                                                            REMEDIES

SECTION 501.   Events of Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34
SECTION 502.   Acceleration of Maturity; Rescission and Annulment   . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
SECTION 503.   Collection of Indebtedness and Suits for Enforcement by Trustee  . . . . . . . . . . . . . . . . . . . . . .  37
SECTION 504.   Trustee May File Proofs of Claim   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
SECTION 505.   Trustee May Enforce Claims Without Possession of Securities  . . . . . . . . . . . . . . . . . . . . . . . .  38
SECTION 506.   Application of Money Collected   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
SECTION 507.   Limitation on Suits  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
SECTION 508.   Unconditional Right of Holders to Receive Principal,
                      Premium and Interest  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
SECTION 509.   Restoration of Rights and Remedies   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
SECTION 510.   Rights and Remedies Cumulative   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
</TABLE>





                                     -iii-
<PAGE>   6

<TABLE>
<CAPTION>
                                                                                                                            PAGE
                                                                                                                            ----
<S>            <C>                                                                                                           <C>
SECTION 511.   Delay or Omission Not Waiver   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
SECTION 512.   Control by Holders   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
SECTION 513.   Waiver of Past Defaults  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
SECTION 514.   Undertaking for Costs  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
SECTION 515.   Waiver of Usury, Stay or Extension Laws  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41


                                                          ARTICLE SIX

                                                          THE TRUSTEE

SECTION 601.   Certain Duties and Responsibilities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
SECTION 602.   Notice of Defaults   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
SECTION 603.   Certain Rights of Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
SECTION 604.   Not Responsible for Recitals or Issuance of Securities   . . . . . . . . . . . . . . . . . . . . . . . . . .  43
SECTION 605.   May Hold Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
SECTION 606.   Money Held in Trust  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
SECTION 607.   Compensation and Reimbursement   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44
SECTION 608.   Conflicting Interests  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44
SECTION 609.   Corporate Trustee Required; Eligibility  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44
SECTION 610.   Resignation and Removal; Appointment of Successor  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  45
SECTION 611.   Acceptance of Appointment by Successor   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  46
SECTION 612.   Merger, Conversion, Consolidation or Succession to Business  . . . . . . . . . . . . . . . . . . . . . . . .  47
SECTION 613.   Preferential Collection of Claims Against Company  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  48
SECTION 614.   Appointment of Authenticating Agent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  48


                                                         ARTICLE SEVEN

                                       HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.   Company to Furnish Trustee Names and Addresses of Holders  . . . . . . . . . . . . . . . . . . . . . . . . .  50
SECTION 702.   Preservation of Information; Communications to Holders   . . . . . . . . . . . . . . . . . . . . . . . . . .  50
SECTION 703.   Reports by Trustee   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50
SECTION 704.   Reports by Company   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51


                                                         ARTICLE EIGHT

                                      CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.   Company May Consolidate, Etc., Only on Certain Terms   . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
SECTION 802.   Successor Substituted  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52
</TABLE>





                                      -iv-
<PAGE>   7

<TABLE>
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                                                          ARTICLE NINE

                                                    SUPPLEMENTAL INDENTURES

SECTION 901.   Supplemental Indentures Without Consent of Holders   . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52
SECTION 902.   Supplemental Indentures With Consent of Holders  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53
SECTION 903.   Execution of Supplemental Indentures   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
SECTION 904.   Effect of Supplemental Indentures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
SECTION 905.   Conformity with Trust Indenture Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
SECTION 906.   Reference in Securities to Supplemental Indentures   . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55


                                                          ARTICLE TEN

                                                           COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
SECTION 1002.  Maintenance of Office or Agency  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
SECTION 1003.  Money for Securities Payments to Be Held in Trust  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
SECTION 1004.  Statement by Officers as to Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
SECTION 1005.  Existence  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
SECTION 1006.  Maintenance of Properties  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58
SECTION 1007.  Payment of Taxes and Other Claims  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58
SECTION 1008.  Limitation on Liens  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58
SECTION 1009.  Limitation on Sale and Leaseback Transactions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
SECTION 1010.  Waiver of Certain Covenants  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60


                                                         ARTICLE ELEVEN

                                                    REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  61
SECTION 1102.  Election to Redeem; Notice to Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  61
SECTION 1103.  Selection by Trustee of Securities to Be Redeemed  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  61
SECTION 1104.  Notice of Redemption   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  62
SECTION 1105.  Deposit of Redemption Price  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  63
SECTION 1106.  Securities Payable on Redemption Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  63
SECTION 1107.  Securities Redeemed in Part  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  63
</TABLE>





                                      -v-
<PAGE>   8

<TABLE>
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                                                         ARTICLE TWELVE

                                                    CONVERSION OF SECURITIES

SECTION 1201.  Applicability; Conversion Privilege and Conversion Price   . . . . . . . . . . . . . . . . . . . . . . . . .  64
SECTION 1202.  Exercise of Conversion Privilege   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64
SECTION 1203.  Fractions of Shares  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  65
SECTION 1204.  Adjustment of Conversion Price   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  65
SECTION 1205.  Notice of Adjustments of Conversion Price  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  69
SECTION 1206.  Notice of Certain Corporate Action   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  70
SECTION 1207.  Company to Reserve Common Stock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  71
SECTION 1208.  Taxes on Conversions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  71
SECTION 1209.  Covenant as to Common Stock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  71
SECTION 1210.  Cancellation of Converted Securities   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  71
SECTION 1211.  Provisions in Case of Consolidation, Merger or Sale of Assets  . . . . . . . . . . . . . . . . . . . . . . .  71
SECTION 1212.  Responsibility of Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  72


                                                        ARTICLE THIRTEEN

                                                         SINKING FUNDS

SECTION 1301.  Applicability of Article   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  73
SECTION 1302.  Satisfaction of Sinking Fund Payments with Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . .  73
SECTION 1303.  Redemption of Securities for Sinking Fund  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  73


                                                        ARTICLE FOURTEEN

                                               DEFEASANCE AND COVENANT DEFEASANCE

SECTION 1401.  Company's Option to Effect Defeasance or Covenant Defeasance   . . . . . . . . . . . . . . . . . . . . . . .  74
SECTION 1402.  Defeasance and Discharge   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  74
SECTION 1403.  Covenant Defeasance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  75
SECTION 1404.  Conditions to Defeasance or Covenant Defeasance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  75
SECTION 1405.  Deposited Money and U.S. Government Obligations to Be
                      Held in Trust; Miscellaneous Provisions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  77
SECTION 1406.  Reinstatement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  78


                                                        ARTICLE FIFTEEN

                                                  SUBORDINATION OF SECURITIES

SECTION 1501.  Securities Subordinate to Senior Indebtedness  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  78
SECTION 1502.  Payment Over of Proceeds Upon Dissolution, Etc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  79
SECTION 1503.  No Payment When Senior Indebtedness in Default   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  80
</TABLE>





                                      -vi-
<PAGE>   9

<TABLE>
<CAPTION>
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SECTION 1504.  Payment Permitted If No Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  80
SECTION 1505.  Subrogation to Rights of Holders of Senior Indebtedness  . . . . . . . . . . . . . . . . . . . . . . . . . .  81
SECTION 1506.  Provisions Solely to Define Relative Rights  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  81
SECTION 1507.  Trustee to Effectuate Subordination  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  81
SECTION 1508.  No Waiver of Subordination Provisions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  82
SECTION 1509.  Notice to Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  82
SECTION 1510.  Reliance on Judicial Order or Certificate of Liquidating Agent   . . . . . . . . . . . . . . . . . . . . . .  83
SECTION 1511.  Trustee Not Fiduciary for Holders of Senior Indebtedness   . . . . . . . . . . . . . . . . . . . . . . . . .  83
SECTION 1512.  Rights of Trustee as Holder of Senior Indebtedness;
                      Preservation of Trustee's Rights  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  83
SECTION 1513.  Article Applicable to Paying Agents  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  84
SECTION 1514.  Defeasance of this Article Fifteen   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  84
</TABLE>





                                     -vii-
<PAGE>   10

          INDENTURE, dated as of __________, 1996, between Beckman Instruments,
Inc., a corporation duly organized and existing under the laws of the State of
Delaware (herein called the "Company"), having its principal office at 2500
Harbor Boulevard, Fullerton, California 92634 and The First National Bank of
Chicago, a national banking association duly organized and existing under the
laws of the United States, as Trustee (herein called the "Trustee").


                            RECITALS OF THE COMPANY

          The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its unsecured
debentures, notes or other evidences of indebtedness (herein called the
"Securities"), to be issued in one or more series as in this Indenture
provided.

          All things necessary to make this Indenture a valid agreement of the
Company, in accordance with its terms, have been done.

          NOW, THEREFORE, THIS INDENTURE WITNESSETH:

          For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually agreed, for the equal and
proportionate benefit of all Holders of the Securities or of series thereof, as
follows:


                                  ARTICLE ONE

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION


SECTION 101.   Definitions.

          For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:

          (1)  the terms defined in this Article have the meanings assigned to
     them in this Article and include the plural as well as the singular;

          (2)  all other terms used herein which are defined in the Trust
     Indenture Act, either directly or by reference therein, have the meanings
     assigned to them therein;

          (3)  all accounting terms not otherwise defined herein have the
     meanings assigned to them in accordance with generally accepted accounting
     principles, and, except as otherwise herein expressly provided, the term
     "generally accepted accounting principles" with respect to any computation
     required or permitted
<PAGE>   11

     hereunder shall mean such accounting principles as are generally
     accepted--at the date of this instrument--at the date of such computation;

          (4)  unless the context otherwise requires, any reference to an
     "Article" or a "Section" refers to an Article or a Section, as the case
     may be, of this Indenture; and

          (5)  the words "herein," "hereof" and "hereunder" and other words of
     similar import refer to this Indenture as a whole and not to any
     particular Article, Section or other subdivision.

          "Act," when used with respect to any Holder, has the meaning
specified in Section 104.

          "Affiliate" of any specified Person means any other Person directly
or indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For the purposes of this definition,
"control" when used with respect to any specified Person means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

          "Attributable Value," when used with respect to any sale and
leaseback transaction means, as of the time of determination, the total
obligation (discounted to present value at the highest rate of interest
specified by the terms of any series of Securities then Outstanding compounded
semi-annually) of the lessee for rental payments (other than amounts required
to be paid on account of property taxes as well as maintenance, repairs,
insurance, water rates and other items which do not constitute payments for
property rights) during the remaining portion of the base term of the lease
included in such sale and leaseback transaction.

          "Authenticating Agent" means any Person authorized by the Trustee
pursuant to Section 614 to act on behalf of the Trustee to authenticate
Securities of one or more series.

          "Board of Directors" means either the board of directors of the
Company or any duly authorized committee of that board.

          "Board Resolution" means a copy of a resolution certified by the
Secretary or an Assistant Secretary of the Company to have been duly adopted by
the Board of Directors and to be in full force and effect on the date of such
certification, and delivered to the Trustee.

          "Business Day," when used with respect to any Place of Payment, means
each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on
which banking institutions in that Place of Payment are authorized or obligated
by law or executive order to close.





                                      -2-
<PAGE>   12

          "Commission" means the Securities and Exchange Commission, from time
to time constituted, created under the Exchange Act, or, if at any time after
the execution of this instrument such Commission is not existing and performing
the duties now assigned to it under the Trust Indenture Act, then the body
performing such duties at such time.

          "Company" means the Person named as the "Company" in the first
paragraph of this instrument until a successor Person shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Company" shall mean such successor Person.

          "Company Request" or "Company Order" means a written request or order
signed in the name of the Company by its Chairman of the Board, its Vice
Chairman of the Board, its President or a Vice President, and by its Treasurer,
an Assistant Treasurer, its Secretary or an Assistant Secretary, and delivered
to the Trustee.

          "Consolidated Net Tangible Assets" of the Company means the aggregate
amount of assets (less applicable reserves and other properly deductible items)
after deducting therefrom (a) all current liabilities (excluding any
indebtedness for money borrowed having a maturity of less than 12 months from
the date of the most recent consolidated balance sheet of the Company but which
by its terms is renewable or extendable beyond 12 months from such date at the
option of the borrower) and (b) all goodwill, trade names, patents, unamortized
debt discount and expense and any other like intangibles, all as set forth on
the most recent consolidated balance sheet of the Company and computed in
accordance with generally accepted accounting principles.

          "Conversion Price" has the meaning specified in Section 1201.

          "Corporate Trust Office" means the principal office of the Trustee in
the City of Chicago, Illinois at which at any particular time its corporate
trust business shall be administered.

          "corporation" means a corporation, association, company, joint-stock
company or business trust.

          "Covenant Defeasance" has the meaning specified in Section 1403.

          "Defaulted Interest" has the meaning specified in Section 307.

          "Defeasance" has the meaning specified in Section 1402.

          "Depositary" means, with respect to Securities of any series issuable
in whole or in part in the form of one or more Global Securities, a clearing
agency registered under the Exchange Act that is designated to act as
Depositary for such Securities as contemplated by Section 301.





                                      -3-
<PAGE>   13

          "Equipment Held for Resale" means instrument systems and related
accessories and components manufactured or assembled by the Company that are
owned and held for placement in facilities of the Company's customers.

          "Event of Default" has the meaning specified in Section 501.

          "Exchange Act" means the Securities Exchange Act of 1934 and any
statute successor thereto, in each case as amended from time to time.

          "Expiration Date" has the meaning specified in Section 104.

          "Global Security" means a Security that evidences all or part of the
Securities of any series and bears the legend set forth in Section 204 (or such
legend as may be specified as contemplated by Section 301 for such Securities).

          "Holder" means a Person in whose name a Security is registered in the
Security Register.

          "Indenture" means this instrument as originally executed and as it
may from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof,
including, for all purposes of this instrument and any such supplemental
indenture, the provisions of the Trust Indenture Act that are deemed to be a
part of and govern this instrument and any such supplemental indenture,
respectively. The term "Indenture" shall also include the terms of particular
series of Securities established as contemplated by Section 301.

          "interest," when used with respect to an Original Issue Discount
Security which by its terms bears interest only after Maturity, means interest
payable after Maturity.

          "Interest Payment Date," when used with respect to any Security,
means the Stated Maturity of an instalment of interest on such Security.

          "Investment Company Act" means the Investment Company Act of 1940 and
any statute successor thereto, in each case as amended from time to time.

          "Lien" means, with respect to any property or assets, any mortgage or
deed of trust, pledge, hypothecation, assignment, security interest, lien,
encumbrance, or other security arrangement of any kind or nature whatsoever on
or with respect to such property or assets (including any conditional sale or
other title retention agreement having substantially the same economic effect
as any of the foregoing).

          "Maturity," when used with respect to any Security, means the date on
which the principal of such Security or an instalment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, call for redemption or otherwise.





                                      -4-
<PAGE>   14

          "Notice of Default" means a written notice of the kind specified in
Section 501(4) or 501(5).

          "Officers' Certificate" means a certificate signed by the Chairman of
the Board, a Vice Chairman of the Board, the President or a Vice President, and
by the Treasurer, an Assistant Treasurer, the Secretary or an Assistant
Secretary, of the Company, and delivered to the Trustee. One of the officers
signing an Officers' Certificate given pursuant to Section 1004 shall be the
principal executive, financial or accounting officer of the Company.

          "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for the Company, and who shall be reasonably acceptable to the Trustee.

          "Original Issue Discount Security" means any Security which provides
for an amount less than the principal amount thereof to be due and payable upon
a declaration of acceleration of the Maturity thereof pursuant to Section 502.

          "Outstanding," when used with respect to Securities, means, as of the
date of determination, all Securities theretofore authenticated and delivered
under this Indenture, except:

          (1)  Securities theretofore cancelled by the Trustee or delivered to
     the Trustee for cancellation;

          (2)  Securities for whose payment or redemption money in the
     necessary amount has been theretofore deposited with the Trustee or any
     Paying Agent (other than the Company) in trust or set aside and segregated
     in trust by the Company (if the Company shall act as its own Paying Agent)
     for the Holders of such Securities; provided that, if such Securities are
     to be redeemed, notice of such redemption has been duly given pursuant to
     this Indenture or provision therefor satisfactory to the Trustee has been
     made;

          (3)  Securities as to which Defeasance has been effected pursuant to
     Section 1402; and

          (4)  Securities which have been paid pursuant to Section 306 or in
     exchange for or in lieu of which other Securities have been authenticated
     and delivered pursuant to this Indenture, other than any such Securities
     in respect of which there shall have been presented to the Trustee proof
     satisfactory to it that such Securities are held by a bona fide purchaser
     in whose hands such Securities are valid obligations of the Company;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given, made or taken any
request, demand, authorization, direction, notice, consent, waiver or other
action hereunder as of any date, (A) the principal amount of an Original Issue
Discount Security which shall be deemed to be Outstanding shall be the amount
of the principal thereof which would be due and





                                      -5-
<PAGE>   15

payable as of such date upon acceleration of the Maturity thereof to such date
pursuant to Section 502, (B) if, as of such date, the principal amount payable
at the Stated Maturity of a Security is not determinable, the principal amount
of such Security which shall be deemed to be Outstanding shall be the amount as
specified or determined as contemplated by Section 301, (C) the principal
amount of a Security denominated in one or more foreign currencies or currency
units which shall be deemed to be Outstanding shall be the U.S. dollar
equivalent, determined as of such date in the manner provided as contemplated
by Section 301, of the principal amount of such Security (or, in the case of a
Security described in Clause (A) or (B) above, of the amount determined as
provided in such Clause), and (D) Securities owned by the Company or any other
obligor upon the Securities or any Affiliate of the Company or of such other
obligor shall be disregarded and deemed not to be Outstanding, except that, in
determining whether the Trustee shall be protected in relying upon any such
request, demand, authorization, direction, notice, consent, waiver or other
action, only Securities which the Trustee knows to be so owned shall be so
disregarded. Securities so owned which have been pledged in good faith may be
regarded as Outstanding if the pledgee establishes to the satisfaction of the
Trustee the pledgee's right so to act with respect to such Securities and that
the pledgee is not the Company or any other obligor upon the Securities or any
Affiliate of the Company or of such other obligor.

          "Paying Agent" means any Person authorized by the Company to pay the
principal of or any premium or interest on any Securities on behalf of the
Company.

          "Person" means any individual, corporation, partnership, joint
venture, trust, unincorporated organization or government or any agency or
political subdivision thereof.

          "Place of Payment," when used with respect to the Securities of any
series, means the place or places where the principal of and any premium and
interest on the Securities of that series are payable as specified as
contemplated by Section 301.

          "Predecessor Security" of any particular Security means every
previous Security evidencing all or a portion of the same debt as that
evidenced by such particular Security; and, for the purposes of this
definition, any Security authenticated and delivered under Section 306 in
exchange for or in lieu of a mutilated, destroyed, lost or stolen Security
shall be deemed to evidence the same debt as the mutilated, destroyed, lost or
stolen Security.

          "Principal Property" means any real property of the Company or any of
its Subsidiaries, and any equipment located at or comprising a part of any such
property, having a net book value, as of the date of determination, in excess
of the greater of $50,000,000 and 10% of Consolidated Net Tangible Assets of
the Company; provided, however, that Principal Property shall not include
Equipment Held for Resale.

          "Redemption Date," when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to this
Indenture.





                                      -6-
<PAGE>   16

          "Redemption Price," when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed pursuant to this
Indenture.

          "Regular Record Date" for the interest payable on any Interest
Payment Date on the Securities of any series means the date specified for that
purpose as contemplated by Section 301.

          "Responsible Officer," when used with respect to the Trustee, means
the chairman or any vice-chairman of the board of directors, the chairman or
any vice-chairman of the executive committee of the board of directors, the
chairman of the trust committee, the president, any vice president, the
secretary, any assistant secretary, the treasurer, any assistant treasurer, the
cashier, any assistant cashier, any trust officer or assistant trust officer,
the controller or any assistant controller or any other officer of the Trustee
customarily performing functions similar to those performed by any of the above
designated officers and also means, with respect to a particular corporate
trust matter, any other officer to whom such matter is referred because of his
knowledge of and familiarity with the particular subject.

          "Restricted Subsidiary" means any Subsidiary of the Company which
owns or leases a Principal Property.

          "Securities" has the meaning stated in the first recital of this
Indenture and more particularly means any Securities authenticated and
delivered under this Indenture.

          "Securities Act" means the Securities Act of 1933 and any statute
successor thereto, in each case as amended from time to time.

          "Security Register" and "Security Registrar" have the respective
meanings specified in Section 305.

          "Senior Indebtedness" means the principal of (and premium, if any)
and interest on (a) all indebtedness of the Company (including indebtedness of
others guaranteed by the Company) other than the Securities, which is (i) for
money borrowed or (ii) evidenced by a note or similar instrument given in
connection with the acquisition of any businesses, properties or assets of any
kind, (b) obligations of the Company as lessee under leases required to be
capitalized on the balance sheet of the lessee under generally accepted
accounting principles and leases of property or assets made as part of any sale
and leaseback transaction to which the Company is a party and (c) amendments,
renewals, extensions, modifications and refundings of any such indebtedness or
obligation, unless in any case in the instrument creating or evidencing any
such indebtedness or obligation or pursuant to which the same is outstanding it
is provided that such indebtedness or obligation is not superior in right of
payment to the Securities or such indebtedness or obligation is subordinated to
senior indebtedness of the Company to substantially the same extent as the
Securities are subordinated to the Senior Indebtedness, in each case whether
such indebtedness or obligation is outstanding on the date of Indenture or
thereafter created, incurred or assumed. The term "indebtedness for money
borrowed" when used with respect to the Company shall mean any obligation of,





                                      -7-
<PAGE>   17

or obligation guaranteed by, the Company for repayment of borrowed money,
whether or not evidenced by bonds, debentures, notes or other written
instruments, and any deferred obligation of, or any such obligation guaranteed
by the Company, for the payment of the purchase price of property or assets
(but not including trade payables).

          "Special Record Date" for the payment of any Defaulted Interest means
a date fixed by the Trustee pursuant to Section 307.

          "Stated Maturity," when used with respect to any Security or any
instalment of principal thereof or interest thereon, means the date specified
in such Security as the fixed date on which the principal of such Security or
such instalment of principal or interest is due and payable.

          "Subsidiary" means a corporation more than 50% of the outstanding
voting stock of which is owned, directly or indirectly, by the Company or by
one or more other Subsidiaries, or by the Company and one or more other
Subsidiaries. For the purposes of this definition, "voting stock" means stock
which ordinarily has voting power for the election of directors, whether at all
times or only so long as no senior class of stock has such voting power by
reason of any contingency.

          "Trust Indenture Act" means the Trust Indenture Act of 1939 as in
force at the date as of which this instrument was executed; provided, however,
that in the event the Trust Indenture Act of 1939 is amended after such date,
"Trust Indenture Act" means, to the extent required by any such amendment, the
Trust Indenture Act of 1939 as so amended.

          "Trustee" means the Person named as the "Trustee" in the first
paragraph of this instrument until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder,
and if at any time there is more than one such Person, "Trustee" as used with
respect to the Securities of any series shall mean the Trustee with respect to
Securities of that series.

          "U.S. Government Obligation" has the meaning specified in Section
1404.

          "Vice President," when used with respect to the Company or the
Trustee, means any vice president, whether or not designated by a number or a
word or words added before or after the title "vice president."


SECTION 102.   Compliance Certificates and Opinions.

          Upon any application or request by the Company to the Trustee to take
any action under any provision of this Indenture, the Company shall furnish to
the Trustee such certificates and opinions as may be required under the Trust
Indenture Act. Each such certificate or opinion shall be given in the form of
an Officers' Certificate, if to be given by an officer of the Company, or an
Opinion of Counsel, if to be given by counsel,





                                      -8-
<PAGE>   18

and shall comply with the requirements of the Trust Indenture Act and any other
requirements set forth in this Indenture.

          Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture (except for certificates
provided for in Section 1004) shall include,

          (1)  a statement that each individual signing such certificate or
     opinion has read such covenant or condition and the definitions herein
     relating thereto;

          (2)  a brief statement as to the nature and scope of the examination
     or investigation upon which the statements or opinions contained in such
     certificate or opinion are based;

          (3)  a statement that, in the opinion of each such individual, he has
     made such examination or investigation as is necessary to enable him to
     express an informed opinion as to whether or not such covenant or
     condition has been complied with; and

          (4)  a statement as to whether, in the opinion of each such
     individual, such condition or covenant has been complied with.


SECTION 103.   Form of Documents Delivered to Trustee.

          In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

          Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to the matters upon which his certificate or opinion is based are
erroneous. Any such certificate or opinion of counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or in the exercise of reasonable care
should know, that the certificate or opinion or representations with respect to
such matters are erroneous.

          Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.





                                      -9-
<PAGE>   19

SECTION 104.   Acts of Holders; Record Dates.

          Any request, demand, authorization, direction, notice, consent,
waiver or other action provided or permitted by this Indenture to be given,
made or taken by Holders may be embodied in and evidenced by one or more
instruments of substantially similar tenor signed by such Holders in person or
by agent duly appointed in writing; and, except as herein otherwise expressly
provided, such action shall become effective when such instrument or
instruments are delivered to the Trustee and, where it is hereby expressly
required, to the Company. Such instrument or instruments (and the action
embodied therein and evidenced thereby) are herein sometimes referred to as the
"Act" of the Holders signing such instrument or instruments. Proof of execution
of any such instrument or of a writing appointing any such agent shall be
sufficient for any purpose of this Indenture and (subject to Section 601)
conclusive in favor of the Trustee and the Company, if made in the manner
provided in this Section.

          The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof. Where
such execution is by a signer acting in a capacity other than his individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his authority. The fact and date of the execution of any such instrument or
writing, or the authority of the Person executing the same, may also be proved
in any other manner which the Trustee deems sufficient.

          The ownership of Securities shall be proved by the Security Register.

          Any request, demand, authorization, direction, notice, consent,
waiver or other Act of the Holder of any Security shall bind every future
Holder of the same Security and the Holder of every Security issued upon the
registration of transfer thereof or in exchange therefor or in lieu thereof in
respect of anything done, omitted or suffered to be done by the Trustee or the
Company in reliance thereon, whether or not notation of such action is made
upon such Security.

          The Company may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities of any series entitled to
give, make or take any request, demand, authorization, direction, notice,
consent, waiver or other action provided or permitted by this Indenture to be
given, made or taken by Holders of Securities of such series, provided that the
Company may not set a record date for, and the provisions of this paragraph
shall not apply with respect to, the giving or making of any notice,
declaration, request or direction referred to in the next paragraph. If any
record date is set pursuant to this paragraph, the Holders of Outstanding
Securities of the relevant series on such record date, and no other Holders,
shall be entitled to take the relevant action, whether or not such Holders
remain Holders after such record date; provided that no such action shall be
effective hereunder unless taken on or prior to the applicable Expiration Date
by Holders of the requisite principal amount of Outstanding Securities of such
series on such record date. Nothing in this paragraph shall be





                                      -10-
<PAGE>   20

construed to prevent the Company from setting a new record date for any action
for which a record date has previously been set pursuant to this paragraph
(whereupon the record date previously set shall automatically and with no
action by any Person be cancelled and of no effect), and nothing in this
paragraph shall be construed to render ineffective any action taken by Holders
of the requisite principal amount of Outstanding Securities of the relevant
series on the date such action is taken. Promptly after any record date is set
pursuant to this paragraph, the Company, at its own expense, shall cause notice
of such record date, the proposed action by Holders and the applicable
Expiration Date to be given to the Trustee in writing and to each Holder of
Securities of the relevant series in the manner set forth in Section 106.

          The Trustee may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities of any series entitled to
join in the giving or making of (i) any Notice of Default, (ii) any declaration
of acceleration referred to in Section 502, (iii) any request to institute
proceedings referred to in Section 507(2) or (iv) any direction referred to in
Section 512, in each case with respect to Securities of such series. If any
record date is set pursuant to this paragraph, the Holders of Outstanding
Securities of such series on such record date, and no other Holders, shall be
entitled to join in such notice, declaration, request or direction, whether or
not such Holders remain Holders after such record date; provided that no such
action shall be effective hereunder unless taken on or prior to the applicable
Expiration Date by Holders of the requisite principal amount of Outstanding
Securities of such series on such record date. Nothing in this paragraph shall
be construed to prevent the Trustee from setting a new record date for any
action for which a record date has previously been set pursuant to this
paragraph (whereupon the record date previously set shall automatically and
with no action by any Person be cancelled and of no effect), and nothing in
this paragraph shall be construed to render ineffective any action taken by
Holders of the requisite principal amount of Outstanding Securities of the
relevant series on the date such action is taken. Promptly after any record
date is set pursuant to this paragraph, the Trustee, at the Company's expense,
shall cause notice of such record date, the proposed action by Holders and the
applicable Expiration Date to be given to the Company in writing and to each
Holder of Securities of the relevant series in the manner set forth in Section
106.

          With respect to any record date set pursuant to this Section, the
party hereto which sets such record dates may designate any day as the
"Expiration Date" and from time to time may change the Expiration Date to any
earlier or later day; provided that no such change shall be effective unless
notice of the proposed new Expiration Date is given to the other party hereto
in writing, and to each Holder of Securities of the relevant series in the
manner set forth in Section 106, on or prior to the existing Expiration Date.
If an Expiration Date is not designated with respect to any record date set
pursuant to this Section, the party hereto which set such record date shall be
deemed to have initially designated the 180th day after such record date as the
Expiration Date with respect thereto, subject to its right to change the
Expiration Date as provided in this paragraph. Notwithstanding the foregoing,
no Expiration Date shall be later than the 180th day after the applicable
record date.





                                      -11-
<PAGE>   21

          Without limiting the foregoing, a Holder entitled hereunder to take
any action hereunder with regard to any particular Security may do so with
regard to all or any part of the principal amount of such Security or by one or
more duly appointed agents each of which may do so pursuant to such appointment
with regard to all or any part of such principal amount.


SECTION 105.   Notices, Etc., to Trustee and Company.

          Any request, demand, authorization, direction, notice, consent,
waiver or Act of Holders or other document provided or permitted by this
Indenture to be made upon, given or furnished to, or filed with,

          (1)  the Trustee by any Holder or by the Company shall be sufficient
     for every purpose hereunder if made, given, furnished or filed in writing
     to or with the Trustee at its Corporate Trust Office, Attention: Corporate
     Trust Services Division, or

          (2)  the Company by the Trustee or by any Holder shall be sufficient
     for every purpose hereunder (unless otherwise herein expressly provided)
     if in writing and mailed, first-class postage prepaid, to the Company
     addressed to it at the address of its principal office specified in the
     first paragraph of this instrument or at any other address previously
     furnished in writing to the Trustee by the Company.


SECTION 106.   Notice to Holders; Waiver.

          Where this Indenture provides for notice to Holders of any event,
such notice shall be sufficiently given (unless otherwise herein expressly
provided) if in writing and mailed, first-class postage prepaid, to each Holder
affected by such event, at his address as it appears in the Security Register,
not later than the latest date (if any), and not earlier than the earliest date
(if any), prescribed for the giving of such notice. In any case where notice to
Holders is given by mail, neither the failure to mail such notice, nor any
defect in any notice so mailed, to any particular Holder shall affect the
sufficiency of such notice with respect to other Holders. Where this Indenture
provides for notice in any manner, such notice may be waived in writing by the
Person entitled to receive such notice, either before or after the event, and
such waiver shall be the equivalent of such notice.  Waivers of notice by
Holders shall be filed with the Trustee, but such filing shall not be a
condition precedent to the validity of any action taken in reliance upon such
waiver.

          In case by reason of the suspension of regular mail service or by
reason of any other cause it shall be impracticable to give such notice by
mail, then such notification as shall be made with the approval of the Trustee
shall constitute a sufficient notification for every purpose hereunder.





                                      -12-
<PAGE>   22

SECTION 107.   Conflict with Trust Indenture Act.

          If any provision hereof limits, qualifies or conflicts with a
provision of the Trust Indenture Act which is required under the Trust
Indenture Act to be a part of and govern this Indenture, the latter provision
shall control. If any provision of this Indenture modifies or excludes any
provision of the Trust Indenture Act which may be so modified or excluded, the
latter provision shall be deemed to apply to this Indenture as so modified or
to be excluded, as the case may be.

SECTION 108.   Effect of Headings and Table of Contents.

          The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.


SECTION 109.   Successors and Assigns.

          All covenants and agreements in this Indenture by the Company shall
bind its successors and assigns, whether so expressed or not.


SECTION 110.   Separability Clause.

          In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.


SECTION 111.   Benefits of Indenture.

          Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors
hereunder, the holders of Senior Indebtedness and the Holders, any benefit or
any legal or equitable right, remedy or claim under this Indenture.


SECTION 112.   Governing Law.

          This Indenture and the Securities shall be governed by and construed
in accordance with the law of the State of New York.


SECTION 113.   Legal Holidays.

          In any case where any Interest Payment Date, Redemption Date or
Stated Maturity of any Security shall not be a Business Day at any Place of
Payment, then (notwithstanding any other provision of this Indenture or of the
Securities (other than a





                                      -13-
<PAGE>   23

provision of any Security which specifically states that such provision shall
apply in lieu of this Section)) payment of interest or principal (and premium,
if any) need not be made at such Place of Payment on such date, but may be made
on the next succeeding Business Day at such Place of Payment with the same
force and effect as if made on the Interest Payment Date or Redemption Date, or
at the Stated Maturity.


                                  ARTICLE TWO

                                 SECURITY FORMS


SECTION 201.   Forms Generally.

          The Securities of each series shall be in substantially the form set
forth in this Article, or in such other form as shall be established by or
pursuant to a Board Resolution or in one or more indentures supplemental
hereto, in each case with such appropriate insertions, omissions, substitutions
and other variations as are required or permitted by this Indenture, and may
have such letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may be required to comply with the rules of any
securities exchange or Depositary therefor or as may, consistently herewith, be
determined by the officers executing such Securities, as evidenced by their
execution thereof. If the form of Securities of any series is established by
action taken pursuant to a Board Resolution, a copy of an appropriate record of
such action shall be certified by the Secretary or an Assistant Secretary of
the Company and delivered to the Trustee at or prior to the delivery of the
Company Order contemplated by Section 303 for the authentication and delivery
of such Securities.

          The definitive Securities shall be printed, lithographed or engraved
on steel engraved borders or may be produced in any other manner, all as
determined by the officers executing such Securities, as evidenced by their
execution of such Securities.


SECTION 202.   Form of Face of Security.

          [Insert any legend required by the Internal Revenue Code and the 
regulations thereunder.]

                           BECKMAN INSTRUMENTS, INC.

                          [Insert title of Securities]

No. _________                                                       $ ________

          Beckman Instruments, Inc., a corporation duly organized and existing
under the laws of the State of Delaware (herein called the "Company," which
term includes any successor Person under the Indenture hereinafter referred
to), for value received, hereby





                                      -14-
<PAGE>   24

promises to pay to ___________________________________, or registered assigns,
the principal sum of __________________________________________ Dollars on
_____________________________________ [if the Security is to bear interest
prior to Maturity, insert -- , and to pay interest thereon from _________ or
from the most recent Interest Payment Date to which interest has been paid or
duly provided for, semi-annually on ________ and ________ in each year,
commencing _______, at the rate of ___% per annum, until the principal hereof
is paid or made available for payment [if applicable, insert -- , provided that
any principal and premium, and any such instalment of interest, which is
overdue shall bear interest at the rate of ___% per annum (to the extent that
the payment of such interest shall be legally enforceable), from the dates such
amounts are due until they are paid or made available for payment, and such
interest shall be payable on demand]. The interest so payable, and punctually
paid or duly provided for, on any Interest Payment Date will, as provided in
such Indenture, be paid to the Person in whose name this Security (or one or
more Predecessor Securities) is registered at the close of business on the
Regular Record Date for such interest, which shall be the _____ or _____
(whether or not a Business Day), as the case may be, next preceding such
Interest Payment Date. Any such interest not so punctually paid or duly
provided for will forthwith cease to be payable to the Holder on such Regular
Record Date and may either be paid to the Person in whose name this Security
(or one or more Predecessor Securities) is registered at the close of business
on a Special Record Date for the payment of such Defaulted Interest to be fixed
by the Trustee, notice whereof shall be given to Holders of Securities of this
series not less than 10 days prior to such Special Record Date, or be paid at
any time in any other lawful manner not inconsistent with the requirements of
any securities exchange on which the Securities of this series may be listed,
and upon such notice as may be required by such exchange, all as more fully
provided in said Indenture].

[If the Security is not to bear interest prior to Maturity, insert -- The
principal of this Security shall not bear interest except in the case of a
default in payment of principal upon acceleration, upon redemption or at Stated
Maturity and in such case the overdue principal and any overdue premium shall
bear interest at the rate of ___% per annum (to the extent that the payment of
such interest shall be legally enforceable), from the dates such amounts are
due until they are paid or made available for payment.  Interest on any overdue
principal or premium shall be payable on demand. [Any such interest on overdue
principal or premium which is not paid on demand shall bear interest at the
rate of _____% per annum (to the extent that the payment of such interest on
interest shall be legally enforceable), from the date of such demand until the
amount so demanded is paid or made available for payment.  Interest on any
overdue interest shall be payable on demand.]]

          Payment of the principal of (and premium, if any) and [if applicable,
insert -- any such] interest on this Security will be made at the office or
agency of the Company maintained for that purpose in __________, in such coin
or currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts [if applicable, insert -- ;
provided, however, that at the option of the Company payment of interest may be
made by check mailed to the address of the Person entitled thereto as such
address shall appear in the Security Register].





                                      -15-
<PAGE>   25

          Reference is hereby made to the further provisions of this Security
set forth on the reverse hereof, which further provisions shall for all
purposes have the same effect as if set forth at this place.

          Unless the certificate of authentication hereon has been executed by
the Trustee referred to on the reverse hereof by manual signature, this
Security shall not be entitled to any benefit under the Indenture or be valid
or obligatory for any purpose.

          IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed under its corporate seal.

Dated:

                                       BECKMAN INSTRUMENTS, INC.


                                       By______________________________ 
                                          
Attest:


_____________________________




SECTION 203.   Form of Reverse of Security.

          This Security is one of a duly authorized issue of securities of the
Company (herein called the "Securities"),  issued and to be issued in one or
more series under an Indenture, dated as of __________, 1996 (herein called the
"Indenture," which term shall have the meaning assigned to it in such
instrument), between the Company and The First National Bank of Chicago, as
Trustee (herein called the "Trustee," which term includes any successor trustee
under the Indenture), and reference is hereby made to the Indenture for a
statement of the respective rights, limitations of rights, duties and
immunities thereunder of the Company, the Trustee, the holders of Senior
Indebtedness and the Holders of the Securities and of the terms upon which the
Securities are, and are to be, authenticated and delivered. This Security is
one of the series designated on the face hereof [if applicable, insert -- ,
limited in aggregate principal amount to $_______].

          [If applicable, insert -- Subject to and upon compliance with the
provisions of the Indenture, the Holder of this Security is entitled, at his
option, at any time on or before the close of business on _________________ or
in case this Security or a portion hereof is called for redemption, then in
respect of this Security or such portion hereof until and including, but
(unless the Company defaults in making the payment due upon redemption) not
after, the close of business on the Redemption Date, to convert this Security
(or any portion of the principal amount hereof which is $1,000 or an integral





                                      -16-
<PAGE>   26

multiple thereof), at the principal amount hereof, or of such portion, into
fully paid and non-assessable shares (calculated as to each conversion to the
nearest 1/100 of a share) of Common Stock of the Company at a Conversion Price
of $_________ per share of Common Stock (or at the current adjusted Conversion
Price if an adjustment has been made as provided in the Indenture) by surrender
of this Security, duly endorsed or assigned to the Company or in blank, to the
Company at its office or agency in the City of ____________, or in the City of
_______________, accompanied by written notice to the Company that the Holder
hereof elects to convert this Security, or if less than the entire principal
amount hereof is to be converted, the portion hereof to be converted, and, in
case such surrender shall be made during the period from the close of business
on any Regular Record Date next preceding any Interest Payment Date to the
opening of business on such Interest Payment Date (unless this Security or the
portion thereof being converted has been called for redemption on a Redemption
Date within such period), also accompanied by payment in New York Clearing
House or other funds acceptable to the Company of an amount equal to the
interest payable on such Interest Payment Date on the principal amount of this
Security then being converted. Subject to the aforesaid requirement for payment
and, in the case of a conversion after the Regular Record Date next preceding
any Interest Payment Date and on or before such Interest Payment Date, to the
right of the Holder of this Security (or any Predecessor Security) of record at
such Regular Record Date to receive an instalment of interest (with certain
exceptions provided in the Indenture), no payment or adjustment is to be made
on conversion for interest accrued hereon or for dividends on the Common Stock
issued on conversion. No fractional shares or scrip representing fractional
shares of Common Stock will be issued on conversion, but instead of any
fractional interest the Company shall pay a cash adjustment as provided in the
Indenture. The Conversion Price is subject to adjustment as provided in the
Indenture. In addition, the Indenture provides that in case of certain
consolidations or mergers to which the Company is a party or the sale or
transfer of all or substantially all of the assets of the Company, the
Indenture shall be amended, without the consent of any Holders of Securities,
so that this Security, if then outstanding, will be convertible thereafter,
during the period this Security shall be convertible as specified above, only
into the kind and amount of securities, cash and other property receivable upon
the consolidation, merger, sale or transfer by a holder of the number of shares
of Common Stock of the Company into which this Security might have been
converted immediately prior to such consolidation, merger, sale or transfer,
assuming such holder of Common Stock of the Company failed to exercise his
rights of election, if any, as to the kind or amount of securities, cash and
other property receivable upon such consolidation, merger, sale or transfer
(provided that if the kind or amount of securities, cash and other property so
receivable is not the same for each non-electing share of Common Stock of the
Company, then the kind and amount of securities, cash and other property so
receivable by each non-electing share shall be deemed to be the kind and amount
so receivable per share by a plurality of the non-electing shares).]

          [If applicable, insert -- The Securities of this series are subject
to redemption upon not less than 30 days' notice by mail, [if applicable,
insert -- (1) on _______ in any year commencing with the year _____ and ending
with the year _____ through operation of the sinking fund for this series at a
Redemption Price equal to 100% of the principal amount, and (2)] at any time
[if applicable, insert -- on or after _____, 19___], as a





                                      -17-
<PAGE>   27

whole or in part, at the election of the Company, at the following Redemption
Prices (expressed as percentages of the principal amount): If redeemed [if
applicable, insert -- on or before __________, ___%, and if redeemed] during
the 12-month period beginning ________ of the years indicated,

<TABLE>
<CAPTION>
                       Redemption                                        Redemption
 Year                     Price                 Year                        Price    
 ----                 -------------             ----                    -------------
<S>                   <C>                       <C>                     <C>

</TABLE>





and thereafter at a Redemption Price equal to ___% of the principal amount,
together in the case of any such redemption [if applicable, insert -- (whether
through operation of the sinking fund or otherwise)] with accrued interest to
the Redemption Date, but interest installments whose Stated Maturity is on or
prior to such Redemption Date will be payable to the Holders of such
Securities, or one or more Predecessor Securities, of record at the close of
business on the relevant Record Dates referred to on the face hereof, all as
provided in the Indenture.]

          [If applicable, insert -- The Securities of this series are subject
to redemption upon not less than 30 days' notice by mail, (1) on __________ in
any year commencing with the year ___ and ending with the year ___ through
operation of the sinking fund for this series at the Redemption Prices for
redemption through operation of the sinking fund (expressed as percentages of
the principal amount) set forth in the table below, and (2) at any time [if
applicable, insert -- on or after ________], as a whole or in part, at the
election of the Company, at the Redemption Prices for redemption otherwise than
through operation of the sinking fund (expressed as percentages of the
principal amount) set forth in the table below: If redeemed during the 12-month
period beginning _________ of the years indicated,


<TABLE>
<CAPTION>
                             Redemption Price                    Redemption Price For
                              For Redemption                     Redemption Otherwise
                           Through Operation of                 Than Through Operation
 Year                        the Sinking Fund                    of the Sinking Fund   
 ----                     ----------------------              -------------------------
<S>                       <C>                                 <C>

</TABLE>





                                      -18-
<PAGE>   28

and thereafter at a Redemption Price equal to ___% of the principal amount,
together in the case of any such redemption (whether through operation of the
sinking fund or otherwise) with accrued interest to the Redemption Date, but
interest installments whose Stated Maturity is on or prior to such Redemption
Date will be payable to the Holders of such Securities, or one or more
Predecessor Securities, of record at the close of business on the relevant
Record Dates referred to on the face hereof, all as provided in the Indenture.]

          [If applicable, insert -- Notwithstanding the foregoing, the Company
may not, prior to _________, redeem any Securities of this series as
contemplated by [if applicable, insert -- Clause (2) of] the preceding
paragraph as a part of, or in anticipation of, any refunding operation by the
application, directly or indirectly, of moneys borrowed having an interest cost
to the Company (calculated in accordance with generally accepted financial
practice) of less than ____% per annum.]

          [If applicable, insert -- The sinking fund for this series provides
for the redemption on _______ in each year beginning with the year ______ and
ending with the year _____ of [if applicable, insert -- not less than $_______
("mandatory sinking fund") and not more than] $______ aggregate principal
amount of Securities of this series. Securities of this series acquired or
redeemed by the Company otherwise than through [if applicable, insert --
mandatory] sinking fund payments may be credited against subsequent [if
applicable, insert -- mandatory] sinking fund payments otherwise required to be
made [if applicable, insert -- , in the inverse order in which they become
due].]

          [If the Security is subject to redemption of any kind, insert -- In
the event of redemption of this Security in part only, a new Security or
Securities of this series and of like tenor for the unredeemed portion hereof
will be issued in the name of the Holder hereof upon the cancellation hereof.]

          [If applicable, insert -- The Indenture contains provisions for
defeasance at any time of [the entire indebtedness of this Security] [or]
[certain restrictive covenants and Events of Default with respect to this
Security] [, in each case] upon compliance with certain conditions set forth in
the Indenture.]

          [If the Security is not an Original Issue Discount Security, insert
- -- If an Event of Default with respect to Securities of this series shall occur
and be continuing, the principal of the Securities of this series may be
declared due and payable in the manner and with the effect provided in the
Indenture.]

          [If the Security is an Original Issue Discount Security, insert -- If
an Event of Default with respect to Securities of this series shall occur and
be continuing, an amount of principal of the Securities of this series may be
declared due and payable in the manner and with the effect provided in the
Indenture. Such amount shall be equal to -- insert formula for determining the
amount. Upon payment (i) of the amount of principal





                                      -19-
<PAGE>   29

so declared due and payable and (ii) of interest on any overdue principal,
premium and interest (in each case to the extent that the payment of such
interest shall be legally enforceable), all of the Company's obligations in
respect of the payment of the principal of and premium and interest, if any, on
the Securities of this series shall terminate.]

          The indebtedness evidenced by this Security is, to the extent
provided in the Indenture, subordinate and subject in right of payment to the
prior payment in full of all Senior Indebtedness (as defined in the Indenture),
and this Security is issued subject to the provisions of the Indenture with
respect thereto. Each Holder of this Security, by accepting the same, (a)
agrees to and shall be bound by such provisions, (b) authorizes and directs the
Trustee on his behalf to take such action as may be necessary or appropriate to
effectuate the subordination so provided and (c) appoints the Trustee his
attorney-in-fact for any and all such purposes. Each Holder hereof, by his
acceptance hereof, waives all notice of the acceptance of the subordination
provisions contained herein and in the Indenture by each holder of Senior
Indebtedness, whether now outstanding or hereafter incurred, and waives
reliance by each such holder upon such provisions.

          The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities of each series to be
affected under the Indenture at any time by the Company and the Trustee with
the consent of the Holders of at least a majority in principal amount of the
Securities at the time Outstanding of each series to be affected. The Indenture
also contains provisions permitting the Holders of specified percentages in
principal amount of the Securities of each series at the time Outstanding, on
behalf of the Holders of all Securities of such series, to waive compliance by
the Company with certain provisions of the Indenture and certain past defaults
under the Indenture and their consequences. Any such consent or waiver by the
Holder of this Security shall be conclusive and binding upon such Holder and
upon all future Holders of this Security and of any Security issued upon the
registration of transfer hereof or in exchange herefor or in lieu hereof,
whether or not notation of such consent or waiver is made upon this Security.

          As provided in and subject to the provisions of the Indenture, the
Holder of this Security shall not have the right to institute any proceeding
with respect to the Indenture or for the appointment of a receiver or trustee
or for any other remedy thereunder, unless such Holder shall have previously
given the Trustee written notice of a continuing Event of Default with respect
to the Securities of this series, the Holders of not less than 25% in principal
amount of the Securities of this series at the time Outstanding shall have made
written request to the Trustee to institute proceedings in respect of such
Event of Default as Trustee and offered the Trustee reasonable indemnity, and
the Trustee shall not have received from the Holders of a majority in principal
amount of Securities of this series at the time Outstanding a direction
inconsistent with such request, and shall have failed to institute any such
proceeding, for 60 days after receipt of such notice, request and offer of
indemnity. The foregoing shall not apply to any suit instituted by the Holder
of this Security for the enforcement of any payment of principal hereof or any
premium or interest hereon on or after the respective due dates expressed
herein.





                                      -20-
<PAGE>   30

          No reference herein to the Indenture and no provision of this
Security or of the Indenture shall alter or impair the obligation of the
Company, which is absolute and unconditional, to pay the principal of and any
premium and interest on this Security at the times, place and rate, and in the
coin or currency, herein prescribed.

          As provided in the Indenture and subject to certain limitations
therein set forth, the transfer of this Security is registrable in the Security
Register, upon surrender of this Security for registration of transfer at the
office or agency of the Company in any place where the principal of and any
premium and interest on this Security are payable, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Company and the Security Registrar duly executed by, the Holder hereof or his
attorney duly authorized in writing, and thereupon one or more new Securities
of this series and of like tenor, of authorized denominations and for the same
aggregate principal amount, will be issued to the designated transferee or
transferees.

          The Securities of this series are issuable only in registered form
without coupons in denominations of $_______ and any integral multiple thereof.
As provided in the Indenture and subject to certain limitations therein set 
forth, Securities of this series are exchangeable for a like aggregate 
principal amount of Securities of this series and of like tenor of a different 
authorized denomination, as requested by the Holder surrendering the same.

          No service charge shall be made for any such registration of transfer
or exchange, but the Company may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.

          Prior to due presentment of this Security for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name this Security is registered as the owner
hereof for all purposes, whether or not this Security be overdue, and neither
the Company, the Trustee nor any such agent shall be affected by notice to the
contrary.

          All terms used in this Security which are defined in the Indenture
shall have the meanings assigned to them in the Indenture.





                                      -21-
<PAGE>   31

SECTION 204.   Form of Legend for Global Securities.

          Unless otherwise specified as contemplated by Section 301 for the
Securities evidenced thereby, every Global Security authenticated and delivered
hereunder shall bear a legend in substantially the following form:

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE
HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A
NOMINEE THEREOF. THIS SECURITY MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A
SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY
BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A
NOMINEE THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE
INDENTURE.


SECTION 205.   Form of Trustee's Certificate of Authentication.

          The Trustee's certificates of authentication shall be in
substantially the following form:

          This is one of the Securities of the series designated therein
referred to in the within-mentioned Indenture.


                                       THE FIRST NATIONAL BANK OF CHICAGO,
                                                                As Trustee


                                       By__________________________________
                                                         Authorized Officer


                                 ARTICLE THREE

                                 THE SECURITIES


SECTION 301.   Amount Unlimited; Issuable in Series.

          The aggregate principal amount of Securities which may be
authenticated and delivered under this Indenture is unlimited.

          The Securities may be issued in one or more series. There shall be
established in or pursuant to a Board Resolution and, subject to Section 303,
set forth, or determined in the manner provided, in an Officers' Certificate,
or established in one or more indentures supplemental hereto, prior to the
issuance of Securities of any series,





                                      -22-
<PAGE>   32

          (1)  the title of the Securities of the series (which shall
     distinguish the Securities of the series from Securities of any other
     series);

          (2)  any limit upon the aggregate principal amount of the Securities
     of the series which may be authenticated and delivered under this
     Indenture (except for Securities authenticated and delivered upon
     registration of transfer of, or in exchange for, or in lieu of, other
     Securities of the series pursuant to Section 304, 305, 306, 906 or 1107
     and except for any Securities which, pursuant to Section 303, are deemed
     never to have been authenticated and delivered hereunder);

          (3)  the Person to whom any interest on a Security of the series
     shall be payable, if other than the Person in whose name that Security (or
     one or more Predecessor Securities) is registered at the close of business
     on the Regular Record Date for such interest;

          (4)  the date or dates on which the principal of any Securities of
     the series is payable;

          (5)  the rate or rates at which any Securities of the series shall
     bear interest, if any, the date or dates from which any such interest
     shall accrue, the Interest Payment Dates on which any such interest shall
     be payable and the Regular Record Date for any such interest payable on
     any Interest Payment Date;

          (6)  the place or places where the principal of and any premium and
     interest on any Securities of the series shall be payable;

          (7)  the period or periods within which, the price or prices at which
     and the terms and conditions upon which any Securities of the series may
     be redeemed, in whole or in part, at the option of the Company and, if
     other than by a Board Resolution, the manner in which any election by the
     Company to redeem the Securities shall be evidenced;

          (8)  the obligation, if any, of the Company to redeem or purchase any
     Securities of the series pursuant to any sinking fund or analogous
     provisions or at the option of the Holder thereof and the period or
     periods within which, the price or prices at which and the terms and
     conditions upon which any Securities of the series shall be redeemed or
     purchased, in whole or in part, pursuant to such obligation;

          (9)  if other than denominations of $1,000 and any integral multiple
     thereof, the denominations in which any Securities of the series shall be
     issuable;

         (10)  if the amount of principal of or any premium or interest on any
     Securities of the series may be determined with reference to an index or
     pursuant to a formula, the manner in which such amounts shall be
     determined;





                                      -23-
<PAGE>   33

         (11)  if other than the currency of the United States of America, the
     currency, currencies or currency units in which the principal of or any
     premium or interest on any Securities of the series shall be payable and
     the manner of determining the equivalent thereof in the currency of the
     United States of America for any purpose, including for purposes of the
     definition of "Outstanding" in Section 101;

         (12)  if the principal of or any premium or interest on any Securities
     of the series is to be payable, at the election of the Company or the
     Holder thereof, in one or more currencies or currency units other than
     that or those in which such Securities are stated to be payable, the
     currency, currencies or currency units in which the principal of or any
     premium or interest on such Securities as to which such election is made
     shall be payable, the periods within which and the terms and conditions
     upon which such election is to be made and the amount so payable (or the
     manner in which such amount shall be determined);

         (13)  if other than the entire principal amount thereof, the portion
     of the principal amount of any Securities of the series which shall be
     payable upon declaration of acceleration of the Maturity thereof pursuant
     to Section 502;

         (14)  if the principal amount payable at the Stated Maturity of any
     Securities of the series will not be determinable as of any one or more
     dates prior to the Stated Maturity, the amount which shall be deemed to be
     the principal amount of such Securities as of any such date for any
     purpose thereunder or hereunder, including the principal amount thereof
     which shall be due and payable upon any Maturity other than the Stated
     Maturity or which shall be deemed to be Outstanding as of any date prior
     to the Stated Maturity (or, in any such case, the manner in which such
     amount deemed to be the principal amount shall be determined);

         (15)  if applicable, that the Securities of the series, in whole or
     any specified part, shall be defeasible pursuant to Section 1402 or
     Section 1403 or both such Sections and, if other than by a Board
     Resolution, the manner in which any election by the Company to defease
     such Securities shall be evidenced;

         (16)  if applicable, that any Securities of the series shall be
     issuable in whole or in part in the form of one or more Global Securities
     and, in such case, the respective Depositaries for such Global Securities,
     the form of any legend or legends which shall be borne by any such Global
     Security in addition to or in lieu of that set forth in Section 204 and
     any circumstances in addition to or in lieu of those set forth in Clause
     (2) of the last paragraph of Section 305 in which any such Global Security
     may be exchanged in whole or in part for Securities registered, and any
     transfer of such Global Security in whole or in part may be registered, in
     the name or names of Persons other than the Depositary for such Global
     Security or a nominee thereof;

         (17)  if applicable, that the Securities of the series shall be
     convertible as provided in Article Twelve;





                                      -24-
<PAGE>   34

         (18)  any addition to or change in the Events of Default which applies
     to any Securities of the series and any change in the right of the Trustee
     or the requisite Holders of such Securities to declare the principal
     amount thereof due and payable pursuant to Section 502;

         (19)  any addition to or change in the covenants set forth in Article
     Ten which applies to Securities of the series; and

         (20)  any other terms of the series (which terms shall not be
     inconsistent with the provisions of this Indenture, except as permitted by
     Section 901(5)).

          All Securities of any one series shall be substantially identical
except as to denomination and except as may otherwise be provided in or
pursuant to the Board Resolution referred to above and (subject to Section 303)
set forth, or determined in the manner provided, in the Officers' Certificate
referred to above or in any such indenture supplemental hereto.

          If any of the terms of the series are established by action taken
pursuant to a Board Resolution, a copy of an appropriate record of such action
shall be certified by the Secretary or an Assistant Secretary of the Company
and delivered to the Trustee at or prior to the delivery of the Officers'
Certificate setting forth the terms of the series.

          The Securities shall be subordinated in right of payment to Senior
Indebtedness as provided in Article Fifteen.


SECTION 302.   Denominations.

          The Securities of each series shall be issuable only in registered
form without coupons and only in such denominations as shall be specified as
contemplated by Section 301. In the absence of any such specified denomination
with respect to the Securities of any series, the Securities of such series
shall be issuable in denominations of $1,000 and any integral multiple thereof.


SECTION 303.   Execution, Authentication, Delivery and Dating.

          The Securities shall be executed on behalf of the Company by its
Chairman of the Board, its Vice Chairman of the Board, its President or one of
its Vice Presidents, under its corporate seal reproduced thereon attested by
its Secretary or one of its Assistant Secretaries. The signature of any of
these officers on the Securities may be manual or facsimile.

          Securities bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the





                                      -25-
<PAGE>   35

authentication and delivery of such Securities or did not hold such offices at
the date of such Securities.

          At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities of any series executed by
the Company to the Trustee for authentication, together with a Company Order
for the authentication and delivery of such Securities, and the Trustee in
accordance with the Company Order shall authenticate and deliver such
Securities. If the form or terms of the Securities of the series have been
established by or pursuant to one or more Board Resolutions as permitted by
Sections 201 and 301, in authenticating such Securities, and accepting the
additional responsibilities under this Indenture in relation to such
Securities, the Trustee shall be entitled to receive, and (subject to Section
601) shall be fully protected in relying upon, an Opinion of Counsel stating,

          (1)  if the form of such Securities has been established by or
     pursuant to Board Resolution as permitted by Section 201, that such form
     has been established in conformity with the provisions of this Indenture;

          (2)  if the terms of such Securities have been established by or
     pursuant to Board Resolution as permitted by Section 301, that such terms
     have been established in conformity with the provisions of this Indenture;
     and

          (3)  that such Securities, when authenticated and delivered by the
     Trustee and issued by the Company in the manner and subject to any
     conditions specified in such Opinion of Counsel, will constitute valid and
     legally binding obligations of the Company enforceable in accordance with
     their terms, subject to bankruptcy, insolvency, fraudulent transfer,
     reorganization, moratorium and similar laws of general applicability
     relating to or affecting creditors' rights and to general equity
     principles.

If such form or terms have been so established, the Trustee shall not be
required to authenticate such Securities if the issue of such Securities
pursuant to this Indenture will affect the Trustee's own rights, duties or
immunities under the Securities and this Indenture or otherwise in a manner
which is not reasonably acceptable to the Trustee.

          Notwithstanding the provisions of Section 301 and of the preceding
paragraph, if all Securities of a series are not to be originally issued at one
time, it shall not be necessary to deliver the Officers' Certificate otherwise
required pursuant to Section 301 or the Company Order and Opinion of Counsel
otherwise required pursuant to such preceding paragraph at or prior to the
authentication of each Security of such series if such documents are delivered
at or prior to the authentication upon original issuance of the first Security
of such series to be issued.

          Each Security shall be dated the date of its authentication.

          No Security shall be entitled to any benefit under this Indenture or
be valid or obligatory for any purpose unless there appears on such Security a
certificate of





                                      -26-
<PAGE>   36

authentication substantially in the form provided for herein executed by the
Trustee by manual signature, and such certificate upon any Security shall be
conclusive evidence, and the only evidence, that such Security has been duly
authenticated and delivered hereunder. Notwithstanding the foregoing, if any
Security shall have been authenticated and delivered hereunder but never issued
and sold by the Company, and the Company shall deliver such Security to the
Trustee for cancellation as provided in Section 309, for all purposes of this
Indenture such Security shall be deemed never to have been authenticated and
delivered hereunder and shall never be entitled to the benefits of this
Indenture.


SECTION 304.   Temporary Securities.

          Pending the preparation of definitive Securities of any series, the
Company may execute, and upon Company Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten,
mimeographed or otherwise produced, in any authorized denomination,
substantially of the tenor of the definitive Securities in lieu of which they
are issued and with such appropriate insertions, omissions, substitutions and
other variations as the officers executing such Securities may determine, as
evidenced by their execution of such Securities.

          If temporary Securities of any series are issued, the Company will
cause definitive Securities of that series to be prepared without unreasonable
delay. After the preparation of definitive Securities of such series, the
temporary Securities of such series shall be exchangeable for definitive
Securities of such series upon surrender of the temporary Securities of such
series at the office or agency of the Company in a Place of Payment for that
series, without charge to the Holder. Upon surrender for cancellation of any
one or more temporary Securities of any series, the Company shall execute and
the Trustee shall authenticate and deliver in exchange therefor one or more
definitive Securities of the same series, of any authorized denominations and
of like tenor and aggregate principal amount. Until so exchanged, the temporary
Securities of any series shall in all respects be entitled to the same benefits
under this Indenture as definitive Securities of such series and tenor.


SECTION 305.   Registration, Registration of Transfer and Exchange.

          The Company shall cause to be kept at the Corporate Trust Office of
the Trustee a register (the register  maintained in such office and in any
other office or agency of the Company in a Place of Payment being herein
sometimes collectively referred to as the "Security Register") in which,
subject to such reasonable regulations as it may prescribe, the Company shall
provide for the registration of Securities and of transfers of Securities. The
Trustee is hereby appointed "Security Registrar" for the purpose of registering
Securities and transfers of Securities as herein provided.

          Upon surrender for registration of transfer of any Security of a
series at the office or agency of the Company in a Place of Payment for that
series, the Company





                                      -27-
<PAGE>   37

shall execute, and the Trustee shall authenticate and deliver, in the name of
the designated transferee or transferees, one or more new Securities of the
same series, of any authorized denominations and of like tenor and aggregate
principal amount.

          At the option of the Holder, Securities of any series may be
exchanged for other Securities of the same series, of any authorized
denominations and of like tenor and aggregate principal amount, upon surrender
of the Securities to be exchanged at such office or agency. Whenever any
Securities are so surrendered for exchange, the Company shall execute, and the
Trustee shall authenticate and deliver, the Securities which the Holder making
the exchange is entitled to receive.

          All Securities issued upon any registration of transfer or exchange
of Securities shall be the valid obligations of the Company, evidencing the
same debt, and entitled to the same benefits under this Indenture, as the
Securities surrendered upon such registration of transfer or exchange.

          Every Security presented or surrendered for registration of transfer
or for exchange shall (if so required by the Company or the Trustee) be duly
endorsed, or be accompanied by a written instrument of transfer in form
satisfactory to the Company and the Security Registrar duly executed, by the
Holder thereof or his attorney duly authorized in writing.

          No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than
exchanges pursuant to Section 304, 906 or 1107 not involving any transfer.

          If the Securities of any series (or of any series and specified
tenor) are to be redeemed in part, the Company shall not be required (A) to
issue, register the transfer of or exchange any Securities of that series (or
of that series and specified tenor, as the case may be) during a period
beginning at the opening of business 15 days before the day of the mailing of a
notice of redemption of any such Securities selected for redemption under
Section 1103 and ending at the close of business on the day of such mailing, or
(B) to register the transfer of or exchange any Security so selected for
redemption in whole or in part, except the unredeemed portion of any Security
being redeemed in part.

          The provisions of Clauses (1), (2), (3) and (4) below shall apply
only to Global Securities:

          (1)  Each Global Security authenticated under this Indenture shall be
     registered in the name of the Depositary designated for such Global
     Security or a nominee thereof and delivered to such Depositary or a
     nominee thereof or custodian therefor, and each such Global Security shall
     constitute a single Security for all purposes of this Indenture.





                                      -28-
<PAGE>   38

          (2)  Notwithstanding any other provision in this Indenture, no Global
     Security may be exchanged in whole or in part for Securities registered,
     and no transfer of a Global Security in whole or in part may be
     registered, in the name of any Person other than the Depositary for such
     Global Security or a nominee thereof unless (A) such Depositary (i) has
     notified the Company that it is unwilling or unable to continue as
     Depositary for such Global Security or (ii) has ceased to be a clearing
     agency registered under the Exchange Act, (B) there shall have occurred
     and be continuing an Event of Default with respect to such Global Security
     or (C) there shall exist such circumstances, if any, in addition to or in
     lieu of the foregoing as have been specified for this purpose as
     contemplated by Section 301.

          (3)  Subject to Clause (2) above, any exchange of a Global Security
     for other Securities may be made in whole or in part, and all Securities
     issued in exchange for a Global Security or any portion thereof shall be
     registered in such names as the Depositary for such Global Security shall
     direct.

          (4)  Every Security authenticated and delivered upon registration of
     transfer of, or in exchange for or in lieu of, a Global Security or any
     portion thereof, whether pursuant to this Section, Section 304, 306, 906
     or 1107 or otherwise, shall be authenticated and delivered in the form of,
     and shall be, a Global Security, unless such Security is registered in the
     name of a Person other than the Depositary for such Global Security or a
     nominee thereof.


SECTION 306.   Mutilated, Destroyed, Lost and Stolen Securities.

          If any mutilated Security is surrendered to the Trustee, the Company
shall execute and the Trustee shall authenticate and deliver in exchange
therefor a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

          If there shall be delivered to the Company and the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any
Security and (ii) such security or indemnity as may be required by them to save
each of them and any agent of either of them harmless, then, in the absence of
notice to the Company or the Trustee that such Security has been acquired by a
bona fide purchaser, the Company shall execute and the Trustee shall
authenticate and deliver, in lieu of any such destroyed, lost or stolen
Security, a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

          In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company in its discretion
may, instead of issuing a new Security, pay such Security.

          Upon the issuance of any new Security under this Section, the Company
may require the payment of a sum sufficient to cover any tax or other
governmental charge





                                      -29-
<PAGE>   39

that may be imposed in relation thereto and any other expenses (including the
fees and expenses of the Trustee) connected therewith.

          Every new Security of any series issued pursuant to this Section in
lieu of any destroyed, lost or stolen Security shall constitute an original
additional contractual obligation of the Company, whether or not the destroyed,
lost or stolen Security shall be at any time enforceable by anyone, and shall
be entitled to all the benefits of this Indenture equally and proportionately
with any and all other Securities of that series duly issued hereunder.

          The provisions of this Section are exclusive and shall preclude (to
the extent lawful) all other rights and remedies with respect to the
replacement or payment of mutilated, destroyed, lost or stolen Securities.


SECTION 307.   Payment of Interest; Interest Rights Preserved.

          Except as otherwise provided as contemplated by Section 301 with
respect to any series of Securities, interest on any Security which is payable,
and is punctually paid or duly provided for, on any Interest Payment Date shall
be paid to the Person in whose name that Security (or one or more Predecessor
Securities) is registered at the close of business on the Regular Record Date
for such interest.

          Any interest on any Security of any series which is payable, but is
not punctually paid or duly provided for, on any Interest Payment Date (herein
called "Defaulted Interest") shall forthwith cease to be payable to the Holder
on the relevant Regular Record Date by virtue of having been such Holder, and
such Defaulted Interest may be paid by the Company, at its election in each
case, as provided in Clause (1) or (2) below:

          (1)  The Company may elect to make payment of any Defaulted Interest
     to the Persons in whose names the Securities of such series (or their
     respective Predecessor Securities) are registered at the close of business
     on a Special Record Date for the payment of such Defaulted Interest, which
     shall be fixed in the following manner. The Company shall notify the
     Trustee in writing of the amount of Defaulted Interest proposed to be paid
     on each Security of such series and the date of the proposed payment, and
     at the same time the Company shall deposit with the Trustee an amount of
     money equal to the aggregate amount proposed to be paid in respect of such
     Defaulted Interest or shall make arrangements satisfactory to the Trustee
     for such deposit prior to the date of the proposed payment, such money
     when deposited to be held in trust for the benefit of the Persons entitled
     to such Defaulted Interest as in this Clause provided. Thereupon the
     Trustee shall fix a Special Record Date for the payment of such Defaulted
     Interest which shall be not more than 15 days and not less than 10 days
     prior to the date of the proposed payment and not less than 10 days after
     the receipt by the Trustee of the notice of the proposed payment. The
     Trustee shall promptly notify the Company of such Special Record Date and,
     in the name and at the expense of the Company, shall cause notice of the
     proposed





                                      -30-
<PAGE>   40

     payment of such Defaulted Interest and the Special Record Date therefor to
     be given to each Holder of Securities of such series in the manner set
     forth in Section 106, not less than 10 days prior to such Special Record
     Date. Notice of the proposed payment of such Defaulted Interest and the
     Special Record Date therefor having been so mailed, such Defaulted
     Interest shall be paid to the Persons in whose names the Securities of
     such series (or their respective Predecessor Securities) are registered at
     the close of business on such Special Record Date and shall no longer be
     payable pursuant to the following Clause (2).

          (2)  The Company may make payment of any Defaulted Interest on the
     Securities of any series in any other lawful manner not inconsistent with
     the requirements of any securities exchange on which such Securities may
     be listed, and upon such notice as may be required by such exchange, if,
     after notice given by the Company to the Trustee of the proposed payment
     pursuant to this Clause, such manner of payment shall be deemed
     practicable by the Trustee.

          Subject to the foregoing provisions of this Section, each Security
delivered under this Indenture upon registration of transfer of or in exchange
for or in lieu of any other Security shall carry the rights to interest accrued
and unpaid, and to accrue, which were carried by such other Security.

          In the case of any Security that is converted after any Regular
Record Date and on or prior to the next succeeding Interest Payment Date (other
than any Security whose Maturity is prior to such Interest Payment Date),
interest shall be payable on such Interest Payment Date notwithstanding such
conversion, and such interest (whether or not punctually paid or duly provided
for) shall be paid to the Person in whose name that Security (or one or more
Predecessor Securities) is registered at the close of business on such Regular
Record Date. Except as otherwise expressly provided in the immediately
preceding sentence, in the case of any Security that is converted, interest
after the date of conversion of such Security shall not be payable.


SECTION 308.   Persons Deemed Owners.

          Prior to due presentment of a Security for registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat
the Person in whose name such Security is registered as the owner of such
Security for the purpose of receiving payment of principal of and any premium
and (subject to Section 307) any interest on such Security and for all other
purposes whatsoever, whether or not such Security be overdue, and neither the
Company, the Trustee nor any agent of the Company or the Trustee shall be
affected by notice to the contrary.


SECTION 309.   Cancellation.

          All Securities surrendered for payment, redemption, registration of
transfer or exchange or for credit against any sinking fund payment shall, if
surrendered to any





                                      -31-
<PAGE>   41

Person other than the Trustee, be delivered to the Trustee and shall be
promptly cancelled by it. The Company may at any time deliver to the Trustee
for cancellation any Securities previously authenticated and delivered
hereunder which the Company may have acquired in any manner whatsoever, and may
deliver to the Trustee (or to any other Person for delivery to the Trustee) for
cancellation any Securities previously authenticated hereunder which the
Company has not issued and sold, and all Securities so delivered shall be
promptly cancelled by the Trustee. No Securities shall be authenticated in lieu
of or in exchange for any Securities cancelled as provided in this Section,
except as expressly permitted by this Indenture. All cancelled Securities held
by the Trustee shall be disposed of as directed by a Company Order.


SECTION 310.   Computation of Interest.

          Except as otherwise specified as contemplated by Section 301 for
Securities of any series, interest on the Securities of each series shall be
computed on the basis of a 360-day year of twelve 30-day months.


                                  ARTICLE FOUR

                           SATISFACTION AND DISCHARGE


SECTION 401.   Satisfaction and Discharge of Indenture.

          This Indenture shall upon Company Request cease to be of further
effect (except as to any surviving rights of registration of transfer or
exchange of Securities herein expressly provided for), and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture, when

          (1)  either

               (A)  all Securities theretofore authenticated and delivered
          (other than (i) Securities which have been destroyed, lost or stolen
          and which have been replaced or paid as provided in Section 306 and
          (ii) Securities for whose payment money has theretofore been
          deposited in trust or segregated and held in trust by the Company and
          thereafter repaid to the Company or discharged from such trust, as
          provided in Section 1003) have been delivered to the Trustee for
          cancellation; or

               (B)  all such Securities not theretofore delivered to the
          Trustee for cancellation

                    (i)   have become due and payable, or





                                      -32-
<PAGE>   42

                     (ii)  will become due and payable at their Stated Maturity
               within one year, or

                    (iii)  are to be called for redemption within one year 
               under arrangements satisfactory to the Trustee for the giving of
               notice of redemption by the Trustee in the name, and at the
               expense, of the Company,

          and the Company, in the case of (i), (ii) or (iii) above, has
          deposited or caused to be deposited with the Trustee as trust funds
          in trust for the purpose money in an amount sufficient to pay and
          discharge the entire indebtedness on such Securities not theretofore
          delivered to the Trustee for cancellation, for principal and any
          premium and interest to the date of such deposit (in the case of
          Securities which have become due and payable) or to the Stated
          Maturity or Redemption Date, as the case may be;

          (2)  the Company has paid or caused to be paid all other sums payable
     hereunder by the Company; and

          (3)  the Company has delivered to the Trustee an Officers'
     Certificate and an Opinion of Counsel, each stating that all conditions
     precedent herein provided for relating to the satisfaction and discharge
     of this Indenture have been complied with.

          Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 607, the obligations of
the Trustee to any Authenticating Agent under Section 614 and, if money shall
have been deposited with the Trustee pursuant to subclause (B) of Clause (1) of
this Section, the obligations of the Trustee under Section 402 and the last
paragraph of Section 1003 shall survive.


SECTION 402.   Application of Trust Money.

          Subject to the provisions of the last paragraph of Section 1003, all
money deposited with the Trustee pursuant to Section 401 shall be held in trust
and applied by it, in accordance with the provisions of the Securities and this
Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee may
determine, to the Persons entitled thereto, of the principal and any premium
and interest for whose payment such money has been deposited with the Trustee.





                                      -33-
<PAGE>   43

                                  ARTICLE FIVE

                                    REMEDIES


SECTION 501.   Events of Default.

          "Event of Default," wherever used herein with respect to Securities
of any series, means any one of the following events (whatever the reason for
such Event of Default and whether it shall be occasioned by the provisions of
Article Fifteen or be voluntary or involuntary or be effected by operation of
law or pursuant to any judgment, decree or order of any court or any order,
rule or regulation of any administrative or governmental body):

          (1)  default in the payment of any interest upon any Security of that
     series when it becomes due and payable, and continuance of such default
     for a period of 30 days; or

          (2)  default in the payment of the principal of or any premium on any
     Security of that series at its Maturity; or

          (3)  default in the deposit of any sinking fund payment, when and as
     due by the terms of a Security of that series; or

          (4)  default in the performance, or breach, of any covenant or
     warranty of the Company in this Indenture (other than a covenant or
     warranty a default in whose performance or whose breach is elsewhere in
     this Section specifically dealt with or which has expressly been included
     in this Indenture solely for the benefit of series of Securities other
     than that series), and continuance of such default or breach for a period
     of 60 days after there has been given, by registered or certified mail, to
     the Company by the Trustee or to the Company and the Trustee by the
     Holders of at least 25% in principal amount of the Outstanding Securities
     of that series a written notice specifying such default or breach and
     requiring it to be remedied and stating that such notice is a "Notice of
     Default" hereunder; or

          (5)  a default under any bond, debenture, note or other evidence of
     indebtedness for money borrowed by the Company (including a default with
     respect to Securities of any series other than that series) having an
     aggregate principal amount outstanding of at least $15,000,000, or under
     any mortgage, indenture or instrument (including this Indenture) under
     which there may be issued or by which there may be secured or evidenced
     any indebtedness for money borrowed by the Company having an aggregate
     principal amount outstanding of at least $15,000,000, whether such
     indebtedness now exists or shall hereafter be created, which default (A)
     shall constitute a failure to pay any portion of the principal of such
     indebtedness when due and payable after the expiration of any applicable
     grace period with respect thereto or (B) shall have resulted in such
     indebtedness becoming or being declared due and payable prior to the date
     on which it would otherwise have become





                                      -34-
<PAGE>   44

     due and payable, without, in the case of Clause (A), such indebtedness
     having been discharged or without, in the case of Clause (B), such
     indebtedness having been discharged or such acceleration having been
     rescinded or annulled, in each such case within a period of 10 days after
     there shall have been given, by registered or certified mail, to the
     Company by the Trustee or to the Company and the Trustee by the Holders of
     at least 25% in principal amount of the Outstanding Securities of that
     series a written notice specifying such default and requiring the Company
     to cause such indebtedness to be discharged or cause such acceleration to
     be rescinded or annulled, as the case may be, and stating that such notice
     is a "Notice of Default" hereunder; provided, however, that, subject to
     the provisions of Sections 601 and 602, the Trustee shall not be deemed to
     have knowledge of such default unless either (A) a Responsible Officer of
     the Trustee shall have actual knowledge of such default or (B) the Trustee
     shall have received written notice thereof from the Company, from any
     Holder, from the holder of any such indebtedness or from the trustee under
     any such mortgage, indenture or other instrument; or

          (6)  the entry by a court having jurisdiction in the premises of (A)
     a decree or order for relief in respect of the Company in an involuntary
     case or proceeding under any applicable Federal or State bankruptcy,
     insolvency, reorganization or other similar law or (B) a decree or order
     adjudging the Company a bankrupt or insolvent, or approving as properly
     filed a petition seeking reorganization, arrangement, adjustment or
     composition of or in respect of the Company under any applicable Federal
     or State law, or appointing a custodian, receiver, liquidator, assignee,
     trustee, sequestrator or other similar official of the Company or of any
     substantial part of its property, or ordering the winding up or
     liquidation of its affairs, and the continuance of any such decree or
     order for relief or any such other decree or order unstayed and in effect
     for a period of 60 consecutive days; or

          (7)  the commencement by the Company of a voluntary case or
     proceeding under any applicable Federal or State bankruptcy, insolvency,
     reorganization or other similar law or of any other case or proceeding to
     be adjudicated a bankrupt or insolvent, or the consent by it to the entry
     of a decree or order for relief in respect of the Company in an
     involuntary case or proceeding under any applicable Federal or State
     bankruptcy, insolvency, reorganization or other similar law or to the
     commencement of any bankruptcy or insolvency case or proceeding against
     it, or the filing by it of a petition or answer or consent seeking
     reorganization or relief under any applicable Federal or State law, or the
     consent by it to the filing of such petition or to the appointment of or
     taking possession by a custodian, receiver, liquidator, assignee, trustee,
     sequestrator or other similar official of the Company or of any
     substantial part of its property, or the making by it of an assignment for
     the benefit of creditors, or the admission by it in writing of its
     inability to pay its debts generally as they become due, or the taking of
     corporate action by the Company in furtherance of any such action; or

          (8)  any other Event of Default provided with respect to Securities
     of that series.





                                      -35-
<PAGE>   45

SECTION 502.   Acceleration of Maturity; Rescission and Annulment.

          If an Event of Default (other than an Event of Default specified in
Section 501(6) or 501(7)) with respect to Securities of any series at the time
Outstanding occurs and is continuing, then in every such case the Trustee or
the Holders of not less than 25% in principal amount of the Outstanding
Securities of that series may declare the principal amount of all the
Securities of that series (or, if any Securities of that series are Original
Issue Discount Securities, such portion of the principal amount of such
Securities as may be specified by the terms thereof) to be due and payable
immediately, by a notice in writing to the Company (and to the Trustee if given
by Holders), and upon any such declaration such principal amount (or specified
amount) shall become immediately due and payable. If an Event of Default
specified in Section 501(6) or 501 (7) with respect to Securities of any series
at the time Outstanding occurs, the principal amount of all the Securities of
that series (or, if any Securities of that series are Original Issue Discount
Securities, such portion of the principal amount of such Securities as may be
specified by the terms thereof) shall automatically, and without any
declaration or other action on the part of the Trustee or any Holder, become
immediately due and payable.

          At any time after such a declaration of acceleration with respect to
Securities of any series has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter in
this Article provided, the Holders of a majority in principal amount of the
Outstanding Securities of that series, by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if

          (1)  the Company has paid or deposited with the Trustee a sum 
     sufficient to pay

               (A)  all overdue interest on all Securities of that series,

               (B)  the principal of (and premium, if any, on) any Securities
          of that series which have become due otherwise than by such
          declaration of acceleration and any interest thereon at the rate or
          rates prescribed therefor in such Securities,

               (C)  to the extent that payment of such interest is lawful,
          interest upon overdue interest at the rate or rates prescribed
          therefor in such Securities, and

               (D)  all sums paid or advanced by the Trustee hereunder and the
          reasonable compensation, expenses, disbursements and advances of the
          Trustee, its agents and counsel;

     and

          (2)  all Events of Default with respect to Securities of that series,
     other than the non-payment of the principal of Securities of that series
     which have become due solely by such declaration of acceleration, have
     been cured or waived as provided in Section 513.





                                      -36-
<PAGE>   46

No such rescission shall affect any subsequent default or impair any right
consequent thereon.


SECTION 503.   Collection of Indebtedness and Suits for Enforcement by Trustee.

          The Company covenants that if

          (1)  default is made in the payment of any interest on any Security
     when such interest becomes due and payable and such default continues for
     a period of 30 days, or

          (2)  default is made in the payment of  the principal of (or premium,
     if any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities, the whole amount then due and payable on such
Securities for principal and any premium and interest and, to the extent that
payment of such interest shall be legally enforceable, interest on any overdue
principal and premium and on any overdue interest, at the rate or rates
prescribed therefor in such Securities, and, in addition thereto, such further
amount as shall be sufficient to cover the costs and expenses of collection,
including the reasonable compensation, expenses, disbursements and advances of
the Trustee, its agents and counsel.

          If an Event of Default with respect to Securities of any series
occurs and is continuing, the Trustee may in its discretion proceed to protect
and enforce its rights and the rights of the Holders of Securities of such
series by such appropriate judicial proceedings as the Trustee shall deem most
effectual to protect and enforce any such rights, whether for the specific
enforcement of any covenant or agreement in this Indenture or in aid of the
exercise of any power granted herein, or to enforce any other proper remedy.


SECTION 504.   Trustee May File Proofs of Claim.

          In case of any judicial proceeding relative to the Company (or any
other obligor upon the Securities), its property or its creditors, the Trustee
shall be entitled and empowered, by intervention in such proceeding or
otherwise, to take any and all actions authorized under the Trust Indenture Act
in order to have claims of the Holders and the Trustee allowed in any such
proceeding. In particular, the Trustee shall be authorized to collect and
receive any moneys or other property payable or deliverable on any such claims
and to distribute the same; and any custodian, receiver, assignee, trustee,
liquidator, sequestrator or other similar official in any such judicial
proceeding is hereby authorized by each Holder to make such payments to the
Trustee and, in the event that the Trustee shall consent to the making of such
payments directly to the Holders, to pay to the Trustee any amount due it for
the reasonable compensation, expenses,





                                      -37-
<PAGE>   47

disbursements and advances of the Trustee, its agents and counsel, and any
other amounts due the Trustee under Section 607.

          No provision of this Indenture shall be deemed to authorize the
Trustee to authorize or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement, adjustment or composition affecting
the Securities or the rights of any Holder thereof or to authorize the Trustee
to vote in respect of the claim of any Holder in any such proceeding; provided,
however, that the Trustee may, on behalf of the Holders, vote for the election
of a trustee in bankruptcy or similar official and be a member of a creditors'
or other similar committee.


SECTION 505.   Trustee May Enforce Claims Without Possession of Securities.

          All rights of action and claims under this Indenture or the
Securities may be prosecuted and enforced by the Trustee without the possession
of any of the Securities or the production thereof in any proceeding relating
thereto, and any such proceeding instituted by the Trustee shall be brought in
its own name as trustee of an express trust, and any recovery of judgment
shall, after provision for the payment of the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel, be
for the ratable benefit of the Holders of the Securities in respect of which
such judgment has been recovered.


SECTION 506.   Application of Money Collected.

          Any money collected by the Trustee pursuant to this Article shall be
applied in the following order, at the date or dates fixed by the Trustee and,
in case of the distribution of such money on account of principal or any
premium or interest, upon presentation of the Securities and the notation
thereon of the payment if only partially paid and upon surrender thereof if
fully paid:

          FIRST:  To the payment of all amounts due the Trustee under Section 
     607; and

          SECOND:  Subject to Article Fifteen, to the payment of the amounts
     then due and unpaid for principal of and any premium and interest on the
     Securities in respect of which or for the benefit of which such money has
     been collected, ratably, without preference or priority of any kind,
     according to the amounts due and payable on such Securities for principal
     and any premium and interest, respectively.


SECTION 507.   Limitation on Suits.

          No Holder of any Security of any series shall have any right to
institute any proceeding, judicial or otherwise, with respect to this
Indenture, or for the appointment of a receiver or trustee, or for any other
remedy hereunder, unless





                                      -38-
<PAGE>   48

          (1)  such Holder has previously given written notice to the Trustee
     of a continuing Event of Default with respect to the Securities of that
     series;

          (2)  the Holders of not less than 25% in principal amount of the
     Outstanding Securities of that series shall have made written request to
     the Trustee to institute proceedings in respect of such Event of Default
     in its own name as Trustee hereunder;

          (3)  such Holder or Holders have offered to the Trustee reasonable
     indemnity against the costs, expenses and liabilities to be incurred in
     compliance with such request;

          (4)  the Trustee for 60 days after its receipt of such notice,
     request and offer of indemnity has failed to institute any such
     proceeding; and

          (5)  no direction inconsistent with such written request has been
     given to the Trustee during such 60-day period by the Holders of a
     majority in principal amount of the Outstanding Securities of that series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all of such
Holders.


SECTION 508.   Unconditional Right of Holders to Receive Principal, Premium and
               Interest.

          Notwithstanding any other provision in this Indenture, the Holder of
any Security shall have the right, which is absolute and unconditional, to
receive payment of the principal of and any premium and (subject to Section
307) interest on such Security on the respective Stated Maturities expressed in
such Security (or, in the case of redemption, on the Redemption Date) and to
institute suit for the enforcement of any such payment, and such rights shall
not be impaired without the consent of such Holder.


SECTION 509.   Restoration of Rights and Remedies.

          If the Trustee or any Holder has instituted any proceeding to enforce
any right or remedy under this Indenture and such proceeding has been
discontinued or abandoned for any reason, or has been determined adversely to
the Trustee or to such Holder, then and in every such case, subject to any
determination in such proceeding, the Company, the Trustee and the Holders
shall be restored severally and respectively to their former positions
hereunder and thereafter all rights and remedies of the Trustee and the Holders
shall continue as though no such proceeding had been instituted.





                                      -39-
<PAGE>   49

SECTION 510.   Rights and Remedies Cumulative.

          Except as otherwise provided with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities in the last
paragraph of Section 306, no right or remedy herein conferred upon or reserved
to the Trustee or to the Holders is intended to be exclusive of any other right
or remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or
now or hereafter existing at law or in equity or otherwise. The assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent
the concurrent assertion or employment of any other appropriate right or
remedy.

SECTION 511.   Delay or Omission Not Waiver.

          No delay or omission of the Trustee or of any Holder of any
Securities to exercise any right or remedy accruing upon any Event of Default
shall impair any such right or remedy or constitute a waiver of any such Event
of Default or an acquiescence therein. Every right and remedy given by this
Article or by law to the Trustee or to the Holders may be exercised from time
to time, and as often as may be deemed expedient, by the Trustee or by the
Holders, as the case may be.


SECTION 512.   Control by Holders.

          The Holders of at least a majority in principal amount of the
Outstanding Securities of any series shall have the right to direct the time,
method and place of conducting any proceeding for any remedy available to the
Trustee, or exercising any trust or power conferred on the Trustee, with
respect to the Securities of such series, provided that

          (1)  such direction shall not be in conflict with any rule of law or
               with this Indenture, and

          (2)  the Trustee may take any other action deemed proper by the
               Trustee which is not inconsistent with such direction.


SECTION 513.   Waiver of Past Defaults.

          The Holders of at least a majority in principal amount of the
Outstanding Securities of any series may on behalf of the Holders of all the
Securities of such series waive any past default hereunder with respect to such
series and its consequences, except a default

          (1)  in the payment of the principal of or any premium or interest on
               any Security of such series, or





                                      -40-
<PAGE>   50

          (2)  in respect of a covenant or provision hereof which under Article
     Nine cannot be modified or amended without the consent of the Holder of
     each Outstanding Security of such series affected.

          Upon any such waiver, such default shall cease to exist, and any
Event of Default arising therefrom shall be deemed to have been cured, for
every purpose of this Indenture; but no such waiver shall extend to any
subsequent or other default or impair any right consequent thereon.


SECTION 514.   Undertaking for Costs.

          In any suit for the enforcement of any right or remedy under this
Indenture, or in any suit against the Trustee for any action taken, suffered or
omitted by it as Trustee, a court may require any party litigant in such suit
to file an undertaking to pay the costs of such suit, and may assess costs
against any such party litigant, in the manner and to the extent provided in
the Trust Indenture Act; provided that neither this Section nor the Trust
Indenture Act shall be deemed to authorize any court to require such an
undertaking or to make such an assessment in any suit instituted by the
Company.


SECTION 515.   Waiver of Usury, Stay or Extension Laws.

          The Company covenants (to the extent that it may lawfully do so) that
it will not at any time insist upon, or plead, or in any manner whatsoever
claim or take the benefit or advantage of, any usury, stay or extension law
wherever enacted, now or at any time hereafter in force, which may affect the
covenants or the performance of this Indenture; and the Company (to the extent
that it may lawfully do so) hereby expressly waives all benefit or advantage of
any such law and covenants that it will not hinder, delay or impede the
execution of any power herein granted to the Trustee, but will suffer and
permit the execution of every such power as though no such law had been
enacted.


                                  ARTICLE SIX

                                  THE TRUSTEE


SECTION 601.   Certain Duties and Responsibilities.

          The duties and responsibilities of the Trustee shall be as provided
by the Trust Indenture Act. Notwithstanding the foregoing, no provision of this
Indenture shall require the Trustee to expend or risk its own funds or
otherwise incur any financial liability in the performance of any of its duties
hereunder, or in the exercise of any of its rights or powers, if it shall have
reasonable grounds for believing that repayment of such funds or adequate
indemnity against such risk or liability is not reasonably assured to it.
Whether or not therein expressly so provided, every provision of this Indenture
relating





                                      -41-
<PAGE>   51

to the conduct or affecting the liability of or affording protection to the
Trustee shall be subject to the provisions of this Section.


SECTION 602.   Notice of Defaults.

          If a default occurs hereunder with respect to Securities of any
series, the Trustee shall give the Holders of Securities of such series notice
of such default as and to the extent provided by the Trust Indenture Act;
provided, however, that in the case of any default of the character specified
in Section 501(4) with respect to Securities of such series, no such notice to
Holders shall be given until at least 30 days after the occurrence thereof. For
the purpose of this Section, the term "default" means any event which is, or
after notice or lapse of time or both would become, an Event of Default with
respect to Securities of such series.


SECTION 603.   Certain Rights of Trustee.

          Subject to the provisions of Section 601:

          (1)  the Trustee may rely and shall be protected in acting or
     refraining from acting upon any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, other evidence of indebtedness or other paper or
     document believed by it to be genuine and to have been signed or presented
     by the proper party or parties;

          (2)  any request or direction of the Company mentioned herein shall
     be sufficiently evidenced by a Company Request or Company Order, and any
     resolution of the Board of Directors shall be sufficiently evidenced by a
     Board Resolution;

          (3)  whenever in the administration of this Indenture the Trustee
     shall deem it desirable that a matter be proved or established prior to
     taking, suffering or omitting any action hereunder, the Trustee (unless
     other evidence be herein specifically prescribed) may, in the absence of
     bad faith on its part, rely upon an Officers' Certificate;

          (4)  the Trustee may consult with counsel and the written advice of
     such counsel or any Opinion of Counsel shall be full and complete
     authorization and protection in respect of any action taken, suffered or
     omitted by it hereunder in good faith and in reliance thereon;

          (5)  the Trustee shall be under no obligation to exercise any of the
     rights or powers vested in it by this Indenture at the request or
     direction of any of the Holders pursuant to this Indenture, unless such
     Holders shall have offered to the Trustee reasonable security or indemnity
     against the costs, expenses and liabilities which might be incurred by it
     in compliance with such request or direction;





                                      -42-
<PAGE>   52

          (6)  the Trustee shall not be bound to make any investigation into
     the facts or matters stated in any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, other evidence of indebtedness or other paper or
     document, but the Trustee, in its discretion, may make such further
     inquiry or investigation into such facts or matters as it may see fit,
     and, if the Trustee shall determine to make such further inquiry or
     investigation, it shall be entitled to examine the books, records and
     premises of the Company, personally or by agent or attorney; and

          (7)  the Trustee may execute any of the trusts or powers hereunder or
     perform any duties hereunder either directly or by or through agents or
     attorneys and the Trustee shall not be responsible for any misconduct or
     negligence on the part of any agent or attorney appointed with due care by
     it hereunder.


SECTION 604.   Not Responsible for Recitals or Issuance of Securities.

          The recitals contained herein and in the Securities, except the
Trustee's certificates of authentication, shall be taken as the statements of
the Company, and neither the Trustee nor any Authenticating Agent assumes any
responsibility for their correctness. The Trustee makes no representations as
to the validity or sufficiency of this Indenture or of the Securities. Neither
the Trustee nor any Authenticating Agent shall be accountable for the use or
application by the Company of Securities or the proceeds thereof.


SECTION 605.   May Hold Securities.

          The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company, in its individual or any other
capacity, may become the owner or pledgee of Securities and, subject to
Sections 608 and 613, may otherwise deal with the Company with the same rights
it would have if it were not Trustee, Authenticating Agent, Paying Agent,
Security Registrar or such other agent.


SECTION 606.   Money Held in Trust.

          Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law.  The Trustee shall be
under no liability for interest on any money received by it hereunder except as
otherwise agreed with the Company.





                                      -43-
<PAGE>   53

SECTION 607.   Compensation and Reimbursement.

          The Company agrees

          (1)  to pay to the Trustee from time to time reasonable compensation
     for all services rendered by it hereunder (which compensation shall not be
     limited by any provision of law in regard to the compensation of a trustee
     of an express trust);

          (2)  except as otherwise expressly provided herein, to reimburse the
     Trustee upon its request for all reasonable expenses, disbursements and
     advances incurred or made by the Trustee in accordance with any provision
     of this Indenture (including the reasonable compensation and the expenses
     and disbursements of its agents and counsel), except any such expense,
     disbursement or advance as may be attributable to its negligence or bad
     faith; and

          (3)  to indemnify the Trustee for, and to hold it harmless against,
     any loss, liability or expense incurred without negligence or bad faith on
     its part, arising out of or in connection with the acceptance or
     administration of the trust or trusts hereunder, including the costs and
     expenses of defending itself against any claim or liability in connection
     with the exercise or performance of any of its powers or duties hereunder.


SECTION 608.   Conflicting Interests.

          If the Trustee has or shall acquire a conflicting interest within the
meaning of the Trust Indenture Act, the Trustee shall either eliminate such
interest or resign, to the extent and in the manner provided by, and subject to
the provisions of, the Trust Indenture Act and this Indenture. To the extent
permitted by such Act, the Trustee shall not be deemed to have a conflicting
interest by virtue of being a trustee under this Indenture with respect to
Securities of more than one series, or a trustee under the Senior Indenture,
dated as of __________, 1996, between the Company and the Trustee.


SECTION 609.   Corporate Trustee Required; Eligibility.

          There shall at all times be one (and only one) Trustee hereunder with
respect to the Securities of each series, which may be Trustee hereunder for
Securities of one or more other series. Each Trustee shall be a Person that is
eligible pursuant to the Trust Indenture Act to act as such and has a combined
capital and surplus of at least $50,000,000. If any such Person publishes
reports of condition at least annually, pursuant to law or to the requirements
of its supervising or examining authority, then for the purposes of this
Section and to the extent permitted by the Trust Indenture Act, the combined
capital and surplus of such Person shall be deemed to be its combined capital
and surplus as set forth in its most recent report of condition so published.
If at any time the Trustee with respect to the Securities of any series shall
cease to be eligible in accor-





                                      -44-
<PAGE>   54

dance with the provisions of this Section, it shall resign immediately in the 
manner and with the effect hereinafter specified in this Article.


SECTION 610.   Resignation and Removal; Appointment of Successor.

          No resignation or removal of the Trustee and no appointment of a
successor Trustee pursuant to this Article shall become effective until the
acceptance of appointment by the successor Trustee in accordance with the
applicable requirements of Section 611.

          The Trustee may resign at any time with respect to the Securities of
one or more series by giving written notice thereof to the Company. If the
instrument of acceptance by a successor Trustee required by Section 611 shall
not have been delivered to the Trustee within 30 days after the giving of such
notice of resignation, the resigning Trustee may petition any court of
competent jurisdiction for the appointment of a successor Trustee with respect
to the Securities of such series.

          The Trustee may be removed at any time with respect to the Securities
of any series by Act of the Holders of a majority in principal amount of the
Outstanding Securities of such series, delivered to the Trustee and to the
Company.

          If at any time:

          (1)  the Trustee shall fail to comply with Section 608 after written
     request therefor by the Company or by any Holder who has been a bona fide
     Holder of a Security for at least six months, or

          (2)  the Trustee shall cease to be eligible under Section 609 and
     shall fail to resign after written request therefor by the Company or by
     any such Holder, or

          (3)  the Trustee shall become incapable of acting or shall be
     adjudged a bankrupt or insolvent or a receiver of the Trustee or of its
     property shall be appointed or any public officer shall take charge or
     control of the Trustee or of its property or affairs for the purpose of
     rehabilitation, conservation or liquidation,

then, in any such case, (A) the Company by a Board Resolution may remove the
Trustee with respect to all Securities, or (B) subject to Section 514, any
Holder who has been a bona fide Holder of a Security for at least six months
may, on behalf of himself and all others similarly situated, petition any court
of competent jurisdiction for the removal of the Trustee with respect to all
Securities and the appointment of a successor Trustee or Trustees.

          If the Trustee shall resign, be removed or become incapable of
acting, or if a vacancy shall occur in the office of Trustee for any cause,
with respect to the Securities of one or more series, the Company, by a Board
Resolution, shall promptly appoint a successor Trustee or Trustees with respect
to the Securities of that or those series (it being understood that any such
successor Trustee may be appointed with respect to the





                                      -45-
<PAGE>   55

Securities of one or more or all of such series and that at any time there
shall be only one Trustee with respect to the Securities of any particular
series) and shall comply with the applicable requirements of Section 611. If,
within one year after such resignation, removal or incapability, or the
occurrence of such vacancy, a successor Trustee with respect to the Securities
of any series shall be appointed by Act of the Holders of a majority in
principal amount of the Outstanding Securities of such series delivered to the
Company and the retiring Trustee, the successor Trustee so appointed shall,
forthwith upon its acceptance of such appointment in accordance with the
applicable requirements of Section 611, become the successor Trustee with
respect to the Securities of such series and to that extent supersede the
successor Trustee appointed by the Company. If no successor Trustee with
respect to the Securities of any series shall have been so appointed by the
Company or the Holders and accepted appointment in the manner required by
Section 611, any Holder who has been a bona fide Holder of a Security of such
series for at least six months may, on behalf of himself and all others
similarly situated, petition any court of competent jurisdiction for the
appointment of a successor Trustee with respect to the Securities of such
series.

          The Company shall give notice of each resignation and each removal of
the Trustee with respect to the Securities of any series and each appointment
of a successor Trustee with respect to the Securities of any series to all
Holders of Securities of such series in the manner provided in Section 106.
Each notice shall include the name of the successor Trustee with respect to the
Securities of such series and the address of its Corporate Trust Office.


SECTION 611.   Acceptance of Appointment by Successor.

          In case of the appointment hereunder of a successor Trustee with
respect to all Securities, every such  successor Trustee so appointed shall
execute, acknowledge and deliver to the Company and to the retiring Trustee an
instrument accepting such appointment, and thereupon the resignation or removal
of the retiring Trustee shall become effective and such successor Trustee,
without any further act, deed or conveyance, shall become vested with all the
rights, powers, trusts and duties of the retiring Trustee; but, on the request
of the Company or the successor Trustee, such retiring Trustee shall, upon
payment of its charges, execute and deliver an instrument transferring to such
successor Trustee all the rights, powers and trusts of the retiring Trustee and
shall duly assign, transfer and deliver to such successor Trustee all property
and money held by such retiring Trustee hereunder.

          In case of the appointment hereunder of a successor Trustee with
respect to the Securities of one or more (but not all) series, the Company, the
retiring Trustee and each successor Trustee with respect to the Securities of
one or more series shall execute and deliver an indenture supplemental hereto
wherein each successor Trustee shall accept such appointment and which (1)
shall contain such provisions as shall be necessary or desirable to transfer
and confirm to, and to vest in, each successor Trustee all the rights, powers,
trusts and duties of the retiring Trustee with respect to the Securities of
that or those series to which the appointment of such successor Trustee
relates, (2) if the retiring





                                      -46-
<PAGE>   56

Trustee is not retiring with respect to all Securities, shall contain such
provisions as shall be deemed necessary or desirable to confirm that all the
rights, powers, trusts and duties of the retiring Trustee with respect to the
Securities of that or those series as to which the retiring Trustee is not
retiring shall continue to be vested in the retiring Trustee, and (3) shall add
to or change any of the provisions of this Indenture as shall be necessary to
provide for or facilitate the administration of the trusts hereunder by more
than one Trustee, it being understood that nothing herein or in such
supplemental indenture shall constitute such Trustees co-trustees of the same
trust and that each such Trustee shall be trustee of a trust or trusts
hereunder separate and apart from any trust or trusts hereunder administered by
any other such Trustee; and upon the execution and delivery of such
supplemental indenture the resignation or removal of the retiring Trustee shall
become effective to the extent provided therein and each such successor
Trustee, without any further act, deed or conveyance, shall become vested with
all the rights, powers, trusts and duties of the retiring Trustee with respect
to the Securities of that or those series to which the appointment of such
successor Trustee relates; but, on request of the Company or any successor
Trustee, such retiring Trustee shall duly assign, transfer and deliver to such
successor Trustee all property and money held by such retiring Trustee
hereunder with respect to the Securities of that or those series to which the
appointment of such successor Trustee relates.

          Upon request of any such successor Trustee, the Company shall execute
any and all instruments for more fully and certainly vesting in and confirming
to such successor Trustee all such rights, powers and trusts referred to in the
first or second preceding paragraph, as the case may be.

          No successor Trustee shall accept its appointment unless at the time
of such acceptance such successor Trustee shall be qualified and eligible under
this Article.


SECTION 612.   Merger, Conversion, Consolidation or Succession to Business.

          Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any
merger, conversion or consolidation to which the Trustee shall be a party, or
any corporation succeeding to all or substantially all the corporate trust
business of the Trustee, shall be the successor of the Trustee hereunder,
provided such corporation shall be otherwise qualified and eligible under this
Article, without the execution or filing of any paper or any further act on the
part of any of the parties hereto. In case any Securities shall have been
authenticated, but not delivered, by the Trustee then in office, any successor
by merger, conversion or consolidation to such authenticating Trustee may adopt
such authentication and deliver the Securities so authenticated with the same
effect as if such successor Trustee had itself authenticated such Securities.





                                      -47-
<PAGE>   57

SECTION 613.   Preferential Collection of Claims Against Company.

          If and when the Trustee shall be or become a creditor of the Company
(or any other obligor upon the Securities), the Trustee shall be subject to the
provisions of the Trust Indenture Act regarding the collection of claims
against the Company (or any such other obligor).


SECTION 614.   Appointment of Authenticating Agent.

          The Trustee may appoint an Authenticating Agent or Agents with
respect to one or more series of Securities which shall be authorized to act on
behalf of the Trustee to authenticate Securities of such series issued upon
original issue and upon exchange, registration of transfer or partial
redemption thereof or pursuant to Section 306, and Securities so authenticated
shall be entitled to the benefits of this Indenture and shall be valid and
obligatory for all purposes as if authenticated by the Trustee hereunder.
Wherever reference is made in this Indenture to the authentication and delivery
of Securities by the Trustee or the Trustee's certificate of authentication,
such reference shall be deemed to include authentication and delivery on behalf
of the Trustee by an Authenticating Agent and a certificate of authentication
executed on behalf of the Trustee by an Authenticating Agent. Each
Authenticating Agent shall be acceptable to the Company and shall at all times
be a corporation organized and doing business under the laws of the United
States of America, any State thereof or the District of Columbia, authorized
under such laws to act as Authenticating Agent, having a combined capital and
surplus of not less than $50,000,000 and subject to supervision or examination
by Federal or State authority. If such Authenticating Agent publishes reports
of condition at least annually, pursuant to law or to the requirements of said
supervising or examining authority, then for the purposes of this Section, the
combined capital and surplus of such Authenticating Agent shall be deemed to be
its combined capital and surplus as set forth in its most recent report of
condition so published. If at any time an Authenticating Agent shall cease to
be eligible in accordance with the provisions of this Section, such
Authenticating Agent shall resign immediately in the manner and with the effect
specified in this Section.

          Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency or
corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible
under this Section, without the execution or filing of any paper or any further
act on the part of the Trustee or the Authenticating Agent.

          An Authenticating Agent may resign at any time by giving written
notice thereof to the Trustee and to the Company. The Trustee may at any time
terminate the agency of an Authenticating Agent by giving written notice
thereof to such Authenticating Agent and to the Company. Upon receiving such a
notice of resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible





                                      -48-
<PAGE>   58

in accordance with the provisions of this Section, the Trustee may appoint a
successor Authenticating Agent which shall be acceptable to the Company and
shall give notice of such appointment in the manner provided in Section 106 to
all Holders of Securities of the series with respect to which such
Authenticating Agent will serve. Any successor Authenticating Agent upon
acceptance of its appointment hereunder shall become vested with all the
rights, powers and duties of its predecessor hereunder, with like effect as if
originally named as an Authenticating Agent. No successor Authenticating Agent
shall be appointed unless eligible under the provisions of this Section.

          The Trustee agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section, and the
Trustee shall be entitled to be reimbursed for such payments, subject to the
provisions of Section 607.

          If an appointment with respect to one or more series is made pursuant
to this Section, the Securities of such series may have endorsed thereon, in
addition to the Trustee's certificate of authentication, an alternative
certificate of authentication in the following form:

          This is one of the Securities of the series designated therein
referred to in the within-mentioned Indenture.


                                       THE FIRST NATIONAL BANK OF CHICAGO,
                                                                As Trustee


                                       By_________________________________,
                                                   As Authenticating Agent



                                       By_________________________________
                                                        Authorized Officer





                                      -49-
<PAGE>   59

                                 ARTICLE SEVEN

               HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY


SECTION 701.   Company to Furnish Trustee Names and Addresses of Holders.

          The Company will furnish or cause to be furnished to the Trustee

          (1)  semi-annually, not later than June 30 and December 31 in each
     year, a list, in such form as the Trustee may reasonably require, of the
     names and addresses of the Holders of Securities of each series as of the
     preceding June 15 or December 15, as the case may be, and

          (2)  at such other times as the Trustee may request in writing,
     within 30 days after the receipt by the Company of any such request, a
     list of similar form and content as of a date not more than 15 days prior
     to the time such list is furnished;

excluding from any such list names and addresses received by the Trustee in its
capacity as Security Registrar.


SECTION 702.   Preservation of Information; Communications to Holders.

          The Trustee shall preserve, in as current a form as is reasonably
practicable, the names and addresses of Holders contained in the most recent
list furnished to the Trustee as provided in Section 701 and the names and
addresses of Holders received by the Trustee in its capacity as Security
Registrar. The Trustee may destroy any list furnished to it as provided in
Section 701 upon receipt of a new list so furnished.

          The rights of Holders to communicate with other Holders with respect
to their rights under this Indenture or under the Securities, and the
corresponding rights and privileges of the Trustee, shall be as provided by the
Trust Indenture Act.

          Every Holder of Securities, by receiving and holding the same, agrees
with the Company and the Trustee that neither the Company nor the Trustee nor
any agent of either of them shall be held accountable by reason of any
disclosure of information as to names and addresses of Holders made pursuant to
the Trust Indenture Act.


SECTION 703.   Reports by Trustee.

          The Trustee shall transmit to Holders such reports concerning the
Trustee and its actions under this Indenture as may be required pursuant to the
Trust Indenture Act at the times and in the manner provided pursuant thereto.





                                      -50-
<PAGE>   60

          A copy of each such report shall, at the time of such transmission to
Holders, be filed by the Trustee with each stock exchange upon which any
Securities are listed, with the Commission and with the Company. The Company
will notify the Trustee when any Securities are listed on any stock exchange.


SECTION 704.   Reports by Company.

          The Company shall file with the Trustee and the Commission, and
transmit to Holders, such information, documents and other reports, and such
summaries thereof, as may be required pursuant to the Trust Indenture Act at
the times and in the manner provided pursuant to such Act; provided that any
such information, documents or reports required to be filed with the Commission
pursuant to Section 13 or 15(d) of the Exchange Act shall be filed with the
Trustee within 15 days after the same is so required to be filed with the
Commission.


                                 ARTICLE EIGHT

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE


SECTION 801.   Company May Consolidate, Etc., Only on Certain Terms.

          The Company shall not consolidate with or merge into any other Person
or convey, transfer or lease its properties and assets substantially as an
entirety to any Person, and the Company shall not permit any Person to
consolidate with or merge into the Company or convey, transfer or lease its
properties and assets substantially as an entirety to the Company, unless:

          (1)  in case the Company shall consolidate with or merge into another
     Person or convey, transfer or lease its properties and assets
     substantially as an entirety to any Person, the Person formed by such
     consolidation or into which the Company is merged or the Person which
     acquires by conveyance or transfer, or which leases, the properties and
     assets of the Company substantially as an entirety shall be a corporation,
     partnership or trust or other entity organized and validly existing under
     the laws of the United States of America, any State thereof or the
     District of Columbia and shall expressly assume, by an indenture
     supplemental hereto, executed and delivered to the Trustee, in form
     satisfactory to the Trustee, the due and punctual payment of the principal
     of and any premium and interest on all the Securities and the performance
     or observance of every covenant of this Indenture on the part of the
     Company to be performed or observed;

          (2)  immediately after giving effect to such transaction and treating
     any indebtedness which becomes an obligation of the Company or any
     Subsidiary as a result of such transaction as having been incurred by the
     Company or such Subsidiary at the time of such transaction, no Event of
     Default, and no event which,





                                      -51-
<PAGE>   61

     after notice or lapse of time or both, would become an Event of Default,  
     shall have happened and be continuing;

          (3)  if, as a result of any such consolidation or merger or such
     conveyance, transfer or lease, properties or assets of the Company would
     become subject to a mortgage, pledge, lien, security interest or other
     encumbrance which would not be permitted by this Indenture, the Company or
     such successor Person, as the case may be, shall take such steps as shall
     be necessary effectively to secure the Securities equally and ratably with
     (or prior to) all indebtedness secured thereby; and

          (4)  the Company has delivered to the Trustee an Officers'
     Certificate and an Opinion of Counsel, each stating that such
     consolidation, merger, conveyance, transfer or lease and, if a
     supplemental indenture is required in connection with such transaction,
     such supplemental indenture comply with this Article and that all
     conditions precedent herein provided for relating to such transaction have
     been complied with.


SECTION 802.   Successor Substituted.

          Upon any consolidation of the Company with, or merger of the Company
into, any other Person or any conveyance, transfer or lease of the properties
and assets of the Company substantially as an entirety in accordance with
Section 801, the successor Person formed by such consolidation or into which
the Company is merged or to which such conveyance, transfer or lease is made
shall succeed to, and be substituted for, and may exercise every right and
power of, the Company under this Indenture with the same effect as if such
successor Person had been named as the Company herein, and thereafter, except
in the case of a lease, the predecessor Person shall be relieved of all
obligations and covenants under this Indenture and the Securities.


                                  ARTICLE NINE

                            SUPPLEMENTAL INDENTURES


SECTION 901.   Supplemental Indentures Without Consent of Holders.

          Without the consent of any Holders, the Company, when authorized by a
Board Resolution, and the Trustee, at any time and from time to time, may enter
into one or more indentures supplemental hereto, in form satisfactory to the
Trustee, for any of the following purposes:

          (1)  to evidence the succession of another Person to the Company and
     the assumption by any such successor of the covenants of the Company
     herein and in the Securities; or





                                      -52-
<PAGE>   62

          (2)  to add to the covenants of the Company for the benefit of the
     Holders of all or any series of Securities (and if such covenants are to
     be for the benefit of less than all series of Securities, stating that
     such covenants are expressly being included solely for the benefit of such
     series) or to surrender any right or power herein conferred upon the
     Company; or

          (3)  to add any additional Events of Default for the benefit of the
     Holders of all or any series of Securities (and if such additional Events
     of Default are to be for the benefit of less than all series of
     Securities, stating that such additional Events of Default are expressly
     being included solely for the benefit of such series); or

          (4)  to add to or change any of the provisions of this Indenture to
     such extent as shall be necessary to permit or facilitate the issuance of
     Securities in bearer form, registrable or not registrable as to principal,
     and with or without interest coupons, or to permit or facilitate the
     issuance of Securities in uncertificated form; or

          (5)  to add to, change or eliminate any of the provisions of this
     Indenture in respect of one or more series of Securities, provided that
     any such addition, change or elimination (A) shall neither (i) apply to
     any Security of any series created prior to the execution of such
     supplemental indenture and entitled to the benefit of such provision nor
     (ii) modify the rights of the Holder of any such Security with respect to
     such provision or (B) shall become effective only when there is no such
     Security Outstanding; or

          (6)  to secure the Securities; or

          (7)  to establish the form or terms of Securities of any series as
     permitted by Sections 201 and 301; or

          (8)  to evidence and provide for the acceptance of appointment
     hereunder by a successor Trustee with respect to the Securities of one or
     more series and to add to or change any of the provisions of this
     Indenture as shall be necessary to provide for or facilitate the
     administration of the trusts hereunder by more than one Trustee, pursuant
     to the requirements of Section 611; or

          (9)  to cure any ambiguity, to correct or supplement any provision
     herein which may be defective or inconsistent with any other provision
     herein, or to make any other provisions with respect to matters or
     questions arising under this Indenture, provided that such action pursuant
     to this Clause (9) shall not adversely affect the interests of the Holders
     of Securities of any series in any material respect.


SECTION 902.   Supplemental Indentures With Consent of Holders.

          With the consent of the Holders of at least a majority in principal
amount of the Outstanding Securities of each series affected by such
supplemental indenture, by Act of said Holders delivered to the Company and the
Trustee, the Company, when authorized





                                      -53-
<PAGE>   63

by a Board Resolution, and the Trustee may enter into an indenture or
indentures supplemental hereto for the purpose of adding any provisions to or
changing in any manner or eliminating any of the provisions of this Indenture
or of modifying in any manner the rights of the Holders of Securities of such
series under this Indenture; provided, however, that no such supplemental
indenture shall, without the consent of the Holder of each Outstanding Security
affected thereby,

          (1)  change the Stated Maturity of the principal of, or any
     instalment of principal of or interest on, any Security, or reduce the
     principal amount thereof or the rate of interest thereon or any premium
     payable upon the redemption thereof, or reduce the amount of the principal
     of an Original Issue Discount Security or any other Security which would
     be due and payable upon a declaration of acceleration of the Maturity
     thereof pursuant to Section 502, or change any Place of Payment where, or
     the coin or currency in which, any Security or any premium or interest
     thereon is payable, or impair the right to institute suit for the
     enforcement of any such payment on or after the Stated Maturity thereof
     (or, in the case of redemption, on or after the Redemption Date), or
     modify the provisions of this Indenture with respect to the subordination
     of the Securities in a manner adverse to the Holders, or

          (2)  reduce the percentage in principal amount of the Outstanding
     Securities of any series, the consent of whose Holders is required for any
     such supplemental indenture, or the consent of whose Holders is required
     for any waiver (of compliance with certain provisions of this Indenture or
     certain defaults hereunder and their consequences) provided for in this
     Indenture, or

          (3)  modify any of the provisions of this Section, Section 513 or
     Section 1010, except to increase any such percentage or to provide that
     certain other provisions of this Indenture cannot be modified or waived
     without the consent of the Holder of each Outstanding Security affected
     thereby; provided, however, that this clause shall not be deemed to
     require the consent of any Holder with respect to changes in the
     references to "the Trustee" and concomitant changes in this Section and
     Section 1010, or the deletion of this proviso, in accordance with the
     requirements of Sections 611 and 901(8).

A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely for the
benefit of one or more particular series of Securities, or which modifies the
rights of the Holders of Securities of such series with respect to such
covenant or other provision, shall be deemed not to affect the rights under
this Indenture of the Holders of Securities of any other series.

          It shall not be necessary for any Act of Holders under this Section
to approve the particular form of any proposed supplemental indenture, but it
shall be sufficient if such Act shall approve the substance thereof.





                                      -54-
<PAGE>   64

SECTION 903.   Execution of Supplemental Indentures.

          In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby
of the trusts created by this Indenture, the Trustee shall be entitled to
receive, and (subject to Section 601) shall be fully protected in relying upon,
an Opinion of Counsel stating that the execution of such supplemental indenture
is authorized or permitted by this Indenture. The Trustee may, but shall not be
obligated to, enter into any such supplemental indenture which affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise.


SECTION 904.   Effect of Supplemental Indentures.

          Upon the execution of any supplemental indenture under this Article,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every
Holder of Securities theretofore or thereafter authenticated and delivered
hereunder shall be bound thereby.


SECTION 905.   Conformity with Trust Indenture Act.

          Every supplemental indenture executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act.


SECTION 906.   Reference in Securities to Supplemental Indentures.

          Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall
if required by the Trustee, bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture. If the Company shall
so determine, new Securities of any series so modified as to conform, in the
opinion of the Trustee and the Company, to any such supplemental indenture may
be prepared and executed by the Company and authenticated and delivered by the
Trustee in exchange for Outstanding Securities of such series.


                                  ARTICLE TEN

                                   COVENANTS


SECTION 1001.  Payment of Principal, Premium and Interest.

          The Company covenants and agrees for the benefit of each series of
Securities that it will duly and punctually pay the principal of and any
premium and interest on the Securities of that series in accordance with the
terms of the Securities and this Indenture.





                                      -55-
<PAGE>   65

SECTION 1002.  Maintenance of Office or Agency.

          The Company will maintain in each Place of Payment for any series of
Securities an office or agency where Securities of that series may be presented
or surrendered for payment, where Securities of that series may be surrendered
for registration of transfer or exchange, where Securities may be surrendered
for conversion and where notices and demands to or upon the Company in respect
of the Securities of that series and this Indenture may be served. The Company
will give prompt written notice to the Trustee of the location, and any change
in the location, of such office or agency. If at any time the Company shall
fail to maintain any such required office or agency or shall fail to furnish
the Trustee with the address thereof, such presentations, surrenders, notices
and demands may be made or served at the Corporate Trust Office of the Trustee,
and the Company hereby appoints the Trustee as its agent to receive all such
presentations, surrenders, notices and demands.

          The Company may also from time to time designate one or more other
offices or agencies where the Securities of one or more series may be presented
or surrendered for any or all such purposes and may from time to time rescind
such designations; provided, however, that no such designation or rescission
shall in any manner relieve the Company of its obligation to maintain an office
or agency in each Place of Payment for Securities of any series for such
purposes. The Company will give prompt written notice to the Trustee of any
such designation or rescission and of any change in the location of any such
other office or agency.


SECTION 1003.  Money for Securities Payments to Be Held in Trust.

          If the Company shall at any time act as its own Paying Agent with
respect to any series of Securities, it will, on or before each due date of the
principal of or any premium or interest on any of the Securities of that
series, segregate and hold in trust for the benefit of the Persons entitled
thereto a sum sufficient to pay the principal and any premium and interest so
becoming due until such sums shall be paid to such Persons or otherwise
disposed of as herein provided and will promptly notify the Trustee of its
action or failure so to act.

          Whenever the Company shall have one or more Paying Agents for any
series of Securities, it will, prior to each due date of the principal of or
any premium or interest on any Securities of that series, deposit with a Paying
Agent a sum sufficient to pay such amount, such sum to be held as provided by
the Trust Indenture Act, and (unless such Paying Agent is the Trustee) the
Company will promptly notify the Trustee of its action or failure so to act.

          The Company will cause each Paying Agent for any series of Securities
other than the Trustee to execute and deliver to the Trustee an instrument in
which such Paying Agent shall agree with the Trustee, subject to the provisions
of this Section, that such Paying Agent will (1) comply with the provisions of
the Trust Indenture Act applicable to it as a Paying Agent and (2) during the
continuance of any default by the Company





                                      -56-
<PAGE>   66

(or any other obligor upon the Securities of that series) in the making of any
payment in respect of the Securities of that series, upon the written request
of the Trustee, forthwith pay to the Trustee all sums held in trust by such
Paying Agent for payment in respect of the Securities of that series.

          The Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held
in trust by the Company or such Paying Agent, such sums to be held by the
Trustee upon the same trusts as those upon which such sums were held by the
Company or such Paying Agent; and, upon such payment by any Paying Agent to the
Trustee, such Paying Agent shall be released from all further liability with
respect to such money.

          Any money deposited with the Trustee or any Paying Agent, or then
held by the Company, in trust for the payment of the principal of or any
premium or interest on any Security of any series and remaining unclaimed for
two years after such principal, premium or interest has become due and payable
shall be paid to the Company on Company Request, or (if then held by the
Company) shall be discharged from such trust; and the Holder of such Security
shall thereafter, as an unsecured general creditor, look only to the Company
for payment thereof, and all liability of the Trustee or such Paying Agent with
respect to such trust money, and all liability of the Company as trustee
thereof, shall thereupon cease; provided, however, that the Trustee or such
Paying Agent, before being required to make any such repayment, may at the
expense of the Company cause to be published once, in a newspaper published in
the English language, customarily published on each Business Day and of general
circulation in the City of New York, notice that such money remains unclaimed
and that, after a date specified therein, which shall not be less than 30 days
from the date of such publication, any unclaimed balance of such money then
remaining will be repaid to the Company.


SECTION 1004.  Statement by Officers as to Default.

          The Company will deliver to the Trustee, within 120 days after the
end of each fiscal year of the Company ending after the date hereof, an
Officers' Certificate, stating whether or not to the best knowledge of the
signers thereof the Company is in default in the performance and observance of
any of the terms, provisions and conditions of this Indenture (without regard
to any period of grace or requirement of notice provided hereunder) and, if the
Company shall be in default, specifying all such defaults and the nature and
status thereof of which they may have knowledge.


SECTION 1005.  Existence.

          Subject to Article Eight, the Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its existence,
rights (charter and statutory) and franchises; provided, however, that the
Company shall not be required to preserve any such right or franchise if the
Board of Directors shall determine that the





                                      -57-
<PAGE>   67

preservation thereof is no longer desirable in the conduct of the business of
the Company and that the loss thereof is not disadvantageous in any material
respect to the Holders.


SECTION 1006.  Maintenance of Properties.

          The Company will cause all properties used or useful in the conduct
of its business or the business of any Subsidiary to be maintained and kept in
good condition, repair and working order and supplied with all necessary
equipment and will cause to be made all necessary repairs, renewals,
replacements, betterments and improvements thereof, all as in the judgment of
the Company may be necessary so that the business carried on in connection
therewith may be properly and advantageously conducted at all times; provided,
however, that nothing in this Section shall prevent the Company from
discontinuing the operation or maintenance of any of such properties if such
discontinuance is, in the judgment of the Company, desirable in the conduct of
its business or the business of any Subsidiary and not disadvantageous in any
material respect to the Holders.


SECTION 1007.  Payment of Taxes and Other Claims.

          The Company will pay or discharge or cause to be paid or discharged,
before the same shall become delinquent, (1) all taxes, assessments and
governmental charges levied or imposed upon the Company or any Subsidiary or
upon the income, profits or property of the Company or any Subsidiary, and (2)
all lawful claims for labor, materials and supplies which, if unpaid, might by
law become a lien upon the property of the Company or any Subsidiary; provided,
however, that the Company shall not be required to pay or discharge or cause to
be paid or discharged any such tax, assessment, charge or claim whose amount,
applicability or validity is being contested in good faith by appropriate
proceedings.


SECTION 1008.  Limitation on Liens.

          The Company will not, and will not permit any Restricted Subsidiary
to, create, incur, issue, assume or guarantee any indebtedness of the Company
or any Subsidiary secured by a Lien upon any Principal Property (defined
below), or upon shares of capital stock or evidences of indebtedness issued by
any Restricted Subsidiary and owned by the Company or any Restricted
Subsidiary, now owned or hereafter owned by the Company, without making
effective provision to secure all of the Securities of each series then
outstanding by such Lien, equally and ratably with any and all other
indebtedness thereby secured, so long as such indebtedness shall be so secured.

          The foregoing restrictions shall not apply, however, to (1) Liens on
any property existing at the time of the acquisition thereof; (2) Liens on
property of a corporation existing at the time such corporation is merged into
or consolidated with the Company or a Restricted Subsidiary or at the time of a
sale, lease or other disposition





                                      -58-
<PAGE>   68

of the properties of such corporation (or a division thereof) as an entirety or
substantially as an entirety to the Company or a Restricted Subsidiary,
provided that such Lien as a result of such merger, consolidation, sale, lease
or other disposition is not extended to property owned by the Company or such
Restricted Subsidiary immediately prior thereto; (3) Liens on property of a
corporation existing at the time such corporation becomes a Restricted
Subsidiary; (4) Liens securing indebtedness of a Restricted Subsidiary to the
Company or to another Restricted Subsidiary; (5) Liens to secure all or part of
the cost of acquisition, construction, development or improvement of the
underlying property, or to secure indebtedness incurred to provide funds for
any such purpose, provided that the commitment of the creditor to extend the
credit secured by any such Lien shall have been obtained not later than
twenty-four months after the later of (a) the completion of the acquisition,
construction, development or improvement of such property or (b) the placing in
operation of such property or of such property as so constructed, developed or
improved; (6) Liens on any property created, assumed or otherwise brought into
existence in contemplation of the sale or other disposition of the underlying
property, whether directly or indirectly, by way of share disposition or
otherwise; provided that the Company must have disposed of such property within
180 days from the creation of such Liens and any indebtedness secured by such
Liens shall be without recourse to the Company or any Subsidiary; (7) Liens in
favor of the United States of America or any State thereof, or any department,
agency or instrumentality or political subdivision thereof, to secure partial,
progress, advance or other payments; (8) Liens to secure indebtedness of joint
ventures in which the Company or a Restricted Subsidiary has an interest, to
the extent such Liens are on property or assets of, or equity interests in,
such joint ventures; (9) Liens on Equipment Held for Resale; and (10) any
indebtedness secured by Liens existing on the date of the Indenture or any
extension, renewal or replacement or refunding of any Lien existing on the date
of the Indenture or referred to in clauses (1) to (3) or (5); provided,
however, that the aggregate principal amount of indebtedness secured thereby
and not otherwise authorized by clauses (1) to (3) or (5), shall not exceed the
aggregate principal amount of indebtedness, plus any premium or fee payable in
connection with any such extension, renewal, replacement, or refunding, so
secured at the time of such extension, renewal, replacement or refunding.

          Notwithstanding the restrictions described above, the Company and its
Restricted Subsidiaries may incur, issue, assume or guarantee debt secured by
Liens without equally and ratably securing the Securities of each series then
outstanding, provided, that at the time of such incurrence, issuance,
assumption or guarantee, after giving effect thereto and to the retirement of
any indebtedness which is concurrently being retired, the aggregate amount of
all outstanding indebtedness secured by Liens so incurred, other than any
indebtedness secured by Liens permitted as described in clauses (1) through
(10) above, and together with all outstanding Attributable Value of all sale
and leaseback transactions permitted as described in Section 1009 hereof does
not exceed 15% of the Consolidated Net Tangible Assets (defined below) of the
Company.





                                      -59-
<PAGE>   69

SECTION 1009.  Limitation on Sale and Leaseback Transactions.

          Sale and leaseback transactions by the Company or any Restricted
Subsidiary involving any Principal Property are prohibited unless either (1)
the Company or its Restricted Subsidiaries would be entitled pursuant to the
provisions described in clauses (1) through (10) of the second paragraph of
Section 1008 hereof to issue assume or guarantee indebtedness secured by a Lien
on such Principal Property without equally and ratably securing the Securities
of each series than outstanding or (2) the Company or such Restricted
Subsidiary shall apply, or cause to be applied to the retirement of its secured
debt within 120 days after the effective date of the sale and leaseback
transaction, an amount not less than the greater of (i) the net proceeds of the
sale of the Principal Property leased pursuant to such arrangement or (ii) the
fair market value of the Principal Property so leased. This restriction will
not apply to a sale and leaseback transaction between the Company and a
Restricted Subsidiary or between Restricted Subsidiaries or involving the
taking back of a lease for a period of less than three years.

          Notwithstanding the restrictions described above, the Company or any
Restricted Subsidiary may enter into a sale and leaseback transaction provided,
that at the time of such transaction, after giving effect thereto, the
Attributable Value thereof, together with all indebtedness secured by Liens
permitted pursuant to Section 1008 hereof other than all indebtedness secured
by Liens permitted as described in clauses (1) through (10) of the second
paragraph of Section 1008 hereof and other than the Attributable Value of such
sale and leaseback transactions permitted by the preceding paragraph, does not
exceed 15% of Consolidated Net Tangible Assets of the Company.


SECTION 1010.  Waiver of Certain Covenants.

          Except as otherwise specified as contemplated by Section 301 for
Securities of such series, the Company may, with respect to the Securities of
any series, omit in any particular instance to comply with any term, provision
or condition set forth in any covenant provided pursuant to Section 301(18),
901(2) or 901(7) for the benefit of the Holders of such series or in Sections
1008 or 1009, if before the time for such compliance the Holders of at least a
majority in principal amount of the Outstanding Securities of such series
shall, by Act of such Holders, either waive such compliance in such instance or
generally waive compliance with such term, provision or condition, but no such
waiver shall extend to or affect such term, provision or condition except to
the extent so expressly waived, and, until such waiver shall become effective,
the obligations of the Company and the duties of the Trustee in respect of any
such term, provision or condition shall remain in full force and effect.





                                      -60-
<PAGE>   70

                                 ARTICLE ELEVEN

                            REDEMPTION OF SECURITIES


SECTION 1101.  Applicability of Article.

          Securities of any series which are redeemable before their Stated
Maturity shall be redeemable in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for such Securities) in
accordance with this Article.


SECTION 1102.  Election to Redeem; Notice to Trustee.

          The election of the Company to redeem any Securities shall be
evidenced by a Board Resolution or in another manner specified as contemplated
by Section 301 for such Securities. In case of any redemption at the election
of the Company of less than all the Securities of any series (including any
such redemption affecting only a single Security), the Company shall, at least
60 days prior to the Redemption Date fixed by the Company (unless a shorter
notice shall be satisfactory to the Trustee), notify the Trustee of such
Redemption Date, of the principal amount of Securities of such series to be
redeemed and, if applicable, of the tenor of the Securities to be redeemed. In
the case of any redemption of Securities prior to the expiration of any
restriction on such redemption provided in the terms of such Securities or
elsewhere in this Indenture, the Company shall furnish the Trustee with an
Officers' Certificate evidencing compliance with such restriction.


SECTION 1103.  Selection by Trustee of Securities to Be Redeemed.

          If less than all the Securities of any series are to be redeemed
(unless all the Securities of such series and of a specified tenor are to be
redeemed or unless such redemption affects only a single Security), the
particular Securities to be redeemed shall be selected not more than 60 days
prior to the Redemption Date by the Trustee, from the Outstanding Securities of
such series not previously called for redemption, by such method as the Trustee
shall deem fair and appropriate and which may provide for the selection for
redemption of a portion of the principal amount of any Security of such series,
provided that the unredeemed portion of the principal amount of any Security
shall be in an authorized denomination (which shall not be less than the
minimum authorized denomination) for such Security. If less than all the
Securities of such series and of a specified tenor are to be redeemed (unless
such redemption affects only a single Security), the particular Securities to
be redeemed shall be selected not more than 60 days prior to the Redemption
Date by the Trustee, from the Outstanding Securities of such series and
specified tenor not previously called for redemption in accordance with the
preceding sentence.





                                      -61-
<PAGE>   71

          The Trustee shall promptly notify the Company in writing of the
Securities selected for redemption as aforesaid and, in case of any Securities
selected for partial redemption as aforesaid, the principal amount thereof to
be redeemed.

          The provisions of the two preceding paragraphs shall not apply with
respect to any redemption affecting only a single Security, whether such
Security is to be redeemed in whole or in part. In the case of any such
redemption in part, the unredeemed portion of the principal amount of the
Security shall be in an authorized denomination (which shall not be less than
the minimum authorized denomination) for such Security.

          For all purposes of this Indenture, unless the context otherwise
requires, all provisions relating to the redemption of Securities shall relate,
in the case of any Securities redeemed or to be redeemed only in part, to the
portion of the principal amount of such Securities which has been or is to be
redeemed.


SECTION 1104.  Notice of Redemption.

          Notice of redemption shall be given by first-class mail, postage
prepaid, mailed not less than 30 nor more than 60 days prior to the Redemption
Date, to each Holder of Securities to be redeemed, at his address appearing in
the Security Register.

          All notices of redemption shall state:

          (1)  the Redemption Date,

          (2)  the Redemption Price,

          (3)  if less than all the Outstanding Securities of any series
     consisting of more than a single Security are to be redeemed, the
     identification (and, in the case of partial redemption of any such
     Securities, the principal amounts) of the particular Securities to be
     redeemed and, if less than all the Outstanding Securities of any series
     consisting of a single Security are to be redeemed, the principal amount
     of the particular Security to be redeemed,

          (4)  that on the Redemption Date the Redemption Price will become due
     and payable upon each such Security to be redeemed and, if applicable,
     that interest thereon will cease to accrue on and after said date,

          (5)  the place or places where each such Security is to be
     surrendered for payment of the Redemption Price, and

          (6)  that the redemption is for a sinking fund, if such is the case.

          Notice of redemption of Securities to be redeemed at the election of
the Company shall be given by the Company or, at the Company's request, by the
Trustee in the name and at the expense of the Company and shall be irrevocable.





                                      -62-
<PAGE>   72

SECTION 1105.  Deposit of Redemption Price.

          Prior to any Redemption Date, the Company shall deposit with the
Trustee or with a Paying Agent (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 1003) an amount of
money sufficient to pay the Redemption Price of, and (except if the Redemption
Date shall be an Interest Payment Date) accrued interest on, all the Securities
which are to be redeemed on that date.


SECTION 1106.  Securities Payable on Redemption Date.

          Notice of redemption having been given as aforesaid, the Securities
so to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and accrued
interest) such Securities shall cease to bear interest. Upon surrender of any
such Security for redemption in accordance with said notice, such Security
shall be paid by the Company at the Redemption Price, together with accrued
interest to the Redemption Date; provided, however, that, unless otherwise
specified as contemplated by Section 301, installments of interest whose Stated
Maturity is on or prior to the Redemption Date will be payable to the Holders
of such Securities, or one or more Predecessor Securities, registered as such
at the close of business on the relevant Record Dates according to their terms
and the provisions of Section 307.

          If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal and any premium shall, until
paid, bear interest from the Redemption Date at the rate prescribed therefor in
the Security.


SECTION 1107.  Securities Redeemed in Part.

          Any Security which is to be redeemed only in part shall be
surrendered at a Place of Payment therefor (with, if the Company or the Trustee
so requires, due endorsement by, or a written instrument of transfer in form
satisfactory to the Company and the Trustee duly executed by, the Holder
thereof or his attorney duly authorized in writing), and the Company shall
execute, and the Trustee shall authenticate and deliver to the Holder of such
Security without service charge, a new Security or Securities of the same
series and of like tenor, of any authorized denomination as requested by such
Holder, in aggregate principal amount equal to and in exchange for the
unredeemed portion of the principal of the Security so surrendered.





                                      -63-
<PAGE>   73

                                 ARTICLE TWELVE

                            CONVERSION OF SECURITIES


SECTION 1201.  Applicability; Conversion Privilege and Conversion Price.

          Securities of any series which are convertible into Common Stock of
the Company shall be convertible in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for Securities of any
series) in accordance with this Article.

          Subject to and upon compliance with the provisions of this Article,
at the option of the Holder thereof, any Security of a series which is
convertible or any portion of the principal amount thereof which is $1,000 or
an integral multiple of $1,000 may be converted at the principal amount
thereof, or of such portion thereof, into fully paid and nonassessable shares
(calculated as to each conversion to the nearest 1/100 of a share) of Common
Stock of the Company, at the Conversion Price, determined as hereinafter
provided, in effect at the time of conversion. Such conversion privilege shall
expire at the close of business on the date specified for Securities of such
series. In case a Security or portion thereof is called for redemption, such
conversion right in respect of the Security or portion so called shall expire
at the close of business on the Redemption Date, unless the company defaults in
making the payment due upon redemption.

          The price at which shares of Common Stock shall be delivered upon
conversion (herein called the "Conversion Price") shall be the price specified
in relation to Securities of such series pursuant to Section 301. The
Conversion Price shall be adjusted in certain instances as provided in
paragraphs (1), (2), (3), (4), (5), (6) and (9) of Section 1204.


SECTION 1202.  Exercise of Conversion Privilege.

          In order to exercise the conversion privilege, the Holder of any
Security to be converted shall surrender such Security, duly endorsed or
assigned to the Company or in blank, at any office or agency of the Company
maintained for that purpose pursuant to Section 1002, accompanied by written
notice to the Company at such office or agency that the Holder elects to
convert such Security or, if less than the entire principal amount thereof is
to be converted, the portion thereof to be converted. Securities surrendered
for conversion during the period from the close of business on any Regular
Record Date next preceding any Interest Payment Date to the opening of business
on such Interest Payment Date shall (except in the case of Securities or
portions thereof which have been called for redemption on a Redemption Date
within such period) be accompanied by payment in New York Clearing House funds
or other funds acceptable to the Company of an amount equal to the interest
payable on such Interest Payment Date on the principal amount of Securities
being surrendered for conversion. Except as provided in the preceding sentence
and subject to the fourth paragraph of Section 307, no payment or adjustment
shall be made upon any conversion on account of any interest accrued on the
Securities





                                      -64-
<PAGE>   74

surrendered for conversion or on account of any dividends on the Common Stock
issued upon conversion.

          Securities shall be deemed to have been converted immediately prior
to the close of business on the day of surrender of such Securities for
conversion in accordance with the foregoing provisions, and at such time the
rights of the Holders of such Securities as Holders shall cease, and the person
or persons entitled to receive the Common Stock issuable upon conversion shall
be treated for all purposes as the record holder or holders of such Common
Stock at such time. As promptly as practicable on or after the conversion date,
the Company shall issue and shall deliver at such office or agency a
certificate or certificates for the number of full shares of Common Stock
issuable upon conversion, together with payment in lieu of any fraction of a
share, as provided in Section 1203.

          In the case of any Security (including any Global Security) which is
converted in part only, upon such conversion the Company shall execute and the
Trustee shall authenticate and deliver to the Holder thereof, at the expense of
the Company, a new Security or Securities of authorized denominations in
aggregate principal amount equal to the unconverted portion of the principal
amount of such Security; provided that if a Global Security is so converted in
part, the new Global Security shall be in a denomination equal to the
unconverted portion of the principal amount of the Global Security so converted
in part.


SECTION 1203.  Fractions of Shares.

          No fractional shares of Common Stock shall be issued upon conversion
of Securities. If more than one Security shall be surrendered for conversion at
one time by the same Holder, the number of full shares which shall be issuable
upon conversion thereof shall be computed on the basis of the aggregate
principal amount of the Securities (or specified portions thereof), so
surrendered.  Instead of any fractional share of Common Stock which would
otherwise be issuable upon conversion of any Security or Securities (or
specified portions thereof) the Company shall pay a cash adjustment in respect
of such fraction in an amount equal to the same fraction of the market price
per share of Common Stock (determined as provided in the last sentence of
paragraph 6 of Section 1204) at the close of business on the day of conversion.


SECTION 1204.  Adjustment of Conversion Price.

          (1)  In case the Company shall pay or make a dividend or other
distribution on any class of capital stock of the Company in Common Stock, the
conversion price in effect at the opening of business on the day following the
date fixed for the determination of stockholders entitled to receive such
dividend or other distribution shall be reduced by multiplying such Conversion
Price by a fraction of which the numerator shall be the number of shares of
Common Stock outstanding at the close of business on the date fixed for such
determination and the denominator shall be the sum of such number of shares





                                      -65-
<PAGE>   75

and the total number of shares constituting such dividend or other
distribution, such reduction to become effective immediately after the opening
of business on the day following the date fixed for such determination. For the
purposes of this paragraph (1), the number of shares of Common Stock at any
time outstanding shall not include shares held in the treasury of the Company
but shall include shares issuable in respect of scrip certificates issued in
lieu of fractions of shares of Common Stock. The Company will not pay any
dividend or make any distribution on shares of Common Stock held in the
treasury of the Company.

          (2)  In case the Company shall issue rights or warrants to all
holders of its Common Stock entitling them to subscribe for or purchase shares
of Common Stock at a price per share less than the current market price per
share (determined as provided in paragraph (8) of this Section) of the Common
Stock on the date fixed for the determination of stockholders entitled to
receive such rights or warrants, the Conversion Price in effect at the opening
of business on the day following the date fixed for such determination shall be
reduced by multiplying such Conversion Price by a fraction of which the
numerator shall be the number of shares of Common Stock outstanding at the
close of business  on the date fixed for such determination plus the number of
shares of Common Stock which the aggregate of the offering price of the total
number of shares of Common Stock so offered for subscription or purchase would
purchase at such current market price and the denominator shall be the number
of shares of Common Stock outstanding at the close of business on the date
fixed for such determination plus the number of shares of Common Stock so
offered for subscription or purchase, such reduction to become effective
immediately after the opening of business on the day following the date fixed
for such determination. For the purposes of this paragraph (2), the number of
shares of Common Stock at any time outstanding shall not include shares held in
the treasury of the Company but shall include shares issuable in respect of
scrip certificates issued in lieu of fractions of shares of Common Stock. The
Company will not issue any rights or warrants in respect of shares of Common
Stock held in the treasury of the Company.

          (3)  In case outstanding shares of Common Stock shall be subdivided
into a greater number of shares of Common Stock, the Conversion Price in effect
at the opening of business on the day following the day upon which such
subdivision becomes effective shall be proportionately reduced, and,
conversely, in case outstanding shares of Common Stock shall each be combined
into a smaller number of shares of Common Stock, the Conversion Price in effect
at the opening of business on the day following the day upon which such
combination becomes effective shall be proportionately increased, such
reduction or increase, as the case may be, to become effective immediately
after the opening of business on the day following the day upon which such
subdivision or combination becomes effective.

          (4)  In case the Company shall, by dividend or otherwise, distribute
to all holders of its Common Stock evidences of its indebtedness or assets
(including securities, but excluding any rights or warrants referred to in
paragraph (2) of this Section, any dividend or distribution paid in cash out of
the retained surplus of the Company and any dividend or distribution referred
to in paragraph (1) of this Section), the conversion price





                                      -66-
<PAGE>   76

shall be adjusted so that the same shall equal the price determined by
multiplying the Conversion Price in effect immediately prior to the close of
business on the date fixed for the determination of stockholders entitled to
receive such distribution by a fraction of which the numerator shall be the
current market price per share (determined as provided in paragraph (8) of this
Section) of the Common Stock on the date fixed for such determination less the
then fair market value (as determined by the Board of Directors, whose
determination shall be conclusive and described in a Board Resolution filed
with the Trustee) of the portion of the assets or evidences of indebtedness so
distributed applicable to one share of Common Stock and the denominator shall
be such current market price per share of the Common Stock, such adjustment to
become effective immediately prior to the opening of business on the day
following the date fixed for the determination of stockholders entitled to
receive such distribution.

          (5)  In case the Company shall, by dividend or otherwise, distribute
to all holders of its Common Stock cash (excluding any cash that is distributed
upon a merger or consolidation to which Section 1211 applies or as part of a
distribution referred to in paragraph (4) of this Section) in an aggregate
amount that, combined together with (I) the aggregate amount of any other cash
distributions to all holders of its Common Stock made exclusively in cash
within the 12 months preceding the date of payment of such distribution and in
respect of which no adjustment pursuant to this paragraph (5) has been made and
(II) the aggregate of any cash plus the fair market value (as determined by the
Board of Directors, whose determination shall be conclusive and described in a
Board Resolution) of other consideration payable in respect of any tender offer
(of the type described paragraph (6) below) by the Company or any of its
subsidiaries for all or any portion of the Common Stock concluded within the 12
months preceding the date of payment of such distribution and in respect of
which no adjustment pursuant to paragraph (6) of this Section has been made,
exceeds 10% of the product of the current market price per share of the Common
Stock on the date for the determination of holders of shares of Common Stock
entitled to receive such distribution times the number of shares of all classes
of Common Stock outstanding on such date, then, and in each such case,
immediately after the close of business on such date for determination, the
Conversion Price shall be adjusted so that the same shall equal the price
determined by multiplying the Conversion Price in effect immediately prior to
the close of business on the date fixed for determination of the stockholders
entitled to receive such distribution by a fraction (i) the numerator of which
shall be equal to the current market price per share (determined as provided in
paragraph (8) of this Section) of the Common Stock on the date fixed for such
determination less an amount equal to the quotient of (x) the excess of such
combined amount over such 10% and (y) the number of shares of Common Stock
outstanding on such date for determination and (ii) the denominator of which
shall be equal to the current market price per share (determined as provided in
paragraph (8) of this Section) of the Common Stock on such date for
determination.

          (6)  In case, after the date of this Indenture, a tender or exchange
offer (other than an odd-lot offer) made by the Company or any Subsidiary for
all or any portion of the Common Stock shall expire and such tender or exchange
offer shall involve the payment by the Company or such Subsidiary of
consideration per share of the Common Stock having a fair market value (as
determined in good faith by the Board of Directors,





                                      -67-
<PAGE>   77

whose determination shall be conclusive and described in a Board Resolution) at
the last time (the "Expiration Time") tenders or exchanges may be made pursuant
to such tender or exchange offer (as it shall have been amended) that exceeds
110% of the current market price per share (determined as provided in paragraph
(8) of this Section) of the Common Stock as of the Trading Day next succeeding
the Expiration Time, the Conversion Price shall be reduced so that the same
shall equal the price determined by multiplying the Conversion Price in effect
immediately prior to the effectiveness of the Conversion Price reduction
contemplated by this subparagraph (6) by a fraction of which the numerator
shall be the sum of the products of the number of shares of the Common Stock
outstanding (including any tendered or exchanged shares) at the Expiration Time
multiplied by the respective current market price per share (determined as
provided in paragraph (8) of this Section) of the Common Stock on the Trading
Day next succeeding the Expiration Time and the denominator shall be the sum of
(x) the fair market value (determined as aforesaid) of the aggregate
consideration payable to stockholders based on the acceptance (up to any
maximum specified in the terms of the tender or exchange offer) of all shares
validly tendered or exchanged and not withdrawn as of the Expiration Time (the
shares deemed so accepted, up to any such maximum, being referred to as the
"Purchased Shares") and (y) the product of the number of shares of the Common
Stock outstanding (less any Purchased Shares) at the Expiration Time and the
current market price per share (determined as provided in paragraph (8) of this
Section) of the Common Stock on the Trading Day next succeeding the Expiration
Time, such reduction to become effective immediately prior to the opening of
business on the day following the Expiration Time.

          (7)  The reclassification of Common Stock into securities other than
Common Stock (other than any reclassification upon a consolidation or merger to
which Section 1211 applies) shall be deemed to involve (a) a distribution of
such securities other than Common Stock to all holders of Common Stock (and the
effective date of such reclassification shall be deemed to be "the date fixed
for the determination of stockholders entitled to receive such distribution"
and "the date fixed for such determination" with the meaning of paragraph (4)
of this Section), and (b) a subdivision or combination, as the case may be, of
the number of shares of Common Stock outstanding immediately prior to such
reclassification into the number of shares of Common Stock outstanding
immediately thereafter (and the effective date of such reclassification shall
be deemed to be "the day upon which such subdivision becomes effective" or "the
day upon which such combination becomes effective", as the case may be, and
"the day upon which such subdivision or combination becomes effective" within
the meaning of paragraph (3) of this Section).

          (8)  For the purpose of computation under paragraphs (2), (4), (5)
and (6) of this Section, the current market price per share of Common Stock on
any date shall be deemed to be the average of the daily closing prices for the
15 consecutive Business Days selected by the Company commencing not less than
20 nor more than 30 Business Days before the day in question. The closing price
for each day shall be the last reported sales price regular way on the
composite tape or, in case no such reported sale takes place on such day, the
average of the reported closing bid and asked prices regular way, in either
case on the New York Stock Exchange or, if the Common Stock is not listed or
admitted





                                      -68-
<PAGE>   78

to trading on such Exchange, on the principal national securities exchange on
which the Common Stock is listed or admitted to trading or, if not listed or
admitted to trading on any national securities exchange, the average of the
closing bid and asked prices as furnished by any New York Stock Exchange member
firm selected from time to time by the Company for that purpose.

          (9)  The Company may make such reductions in the Conversion Price, in
addition to those required by paragraphs (1), (2), (3), (4), (5) and (6) of
this Section, as it considers to be advisable in order that any event treated
for Federal income tax purposes as a dividend of stock or stock rights shall
not be taxable to the recipients.

          (10)  Notwithstanding the provisions of this Article, the Conversion
Price per share shall not be reduced to less than the par value thereof as a
result of any adjustment made hereunder unless, under applicable law then in
effect, Securities may be converted, at such lower Conversion Price, into
legally issued fully-paid and nonassessable shares of Common Stock.

          (11)  The granting of the right to purchase shares of Common Stock
(whether from treasury shares or otherwise) pursuant to any dividend or
interest reinvestment plan and/or any Common Stock purchase plan providing for
the reinvestment of dividends or interest payable on securities of the Company
and/or the investment of periodic optional payments and/or stock option plans
and/or employee benefit or similar plans at a price per share of not less than
95 percent of the current market price per share (determined as provided in
such plans) of the Common Stock (so long as such right to purchase is in no
case evidenced by the delivery of rights or warrants) shall not be deemed to
constitute an issue of rights or warrants by the Company.

          (12)  No adjustment in the Conversion Price shall be required unless
such adjustment would require an increase or decrease of at least one percent
in such Conversion Price; provided, however, that any adjustment which by
reason of this paragraph (12) is not required to be made shall be carried
forward and taken into account in any subsequent adjustment. All calculations
under this Article shall be made to the nearest cent or to the nearest 1/100 of
a share, as the case may be.


SECTION 1205.  Notice of Adjustments of Conversion Price.

          Whenever the Conversion Price is adjusted as herein provided:

          (a)  the Company shall compute the adjusted Conversion Price in
     accordance with Section 1204 and shall prepare a certificate signed by the
     principal financial officer or principal accounting officer of the Company
     setting forth the adjusted Conversion Price and showing in reasonable
     detail the facts upon which such adjustment is based, and such certificate
     shall forthwith be filed at the Corporate Trust Office of the Trustee and
     at each office or agency maintained for the purpose of conversion of
     Securities pursuant to Section 1002; and





                                      -69-
<PAGE>   79

          (b)  a notice stating that the Conversion Price has been adjusted and
     setting forth the adjusted Conversion Price shall forthwith be required,
     and as soon as practicable after it is required, such notice shall be
     mailed by the Company to all Holders at their last addresses as they shall
     appear in the Security Register.


SECTION 1206.  Notice of Certain Corporate Action.

          In case:

          (a)  the Company shall declare a dividend (or any other distribution)
     on its Common Stock payable otherwise than in cash out of its earned
     surplus; or

          (b)  the Company shall authorize the granting to all holders of its
     Common Stock of rights or warrants to subscribe for or purchase any shares
     of capital stock of any class or of any other rights; or

          (c)  of any reclassification of the Common Stock of the Company
     (other than a subdivision or combination of its outstanding shares of
     Common Stock), or of any consolidation or merger to which the Company is a
     party and for which approval of any stockholders of the Company is
     required, or of the sale or transfer of all or substantially all of the
     assets of the Company; or

          (d)  of the voluntary or involuntary dissolution, liquidation or
winding up of the Company;

then the Company shall cause to be filed at each office or agency maintained
for the purpose of conversion of Securities pursuant to Section 1002, and shall
cause to be mailed to all Holders at their last addresses as they shall appear
in the Security Register, at least 20 days (or 10 days in any case specified in
Clause (a) or (b) above) prior to the applicable record date hereinafter
specified, a notice stating (x) the date on which a record is to be taken for
the purpose of such dividend, distribution, rights or warrants, or, if a record
is not to be taken, the date as of which the holders of Common Stock of record
to be entitled to such dividend, distribution, rights or warrants are to be
determined, or (y) the date on which such reclassification, consolidation,
merger, sale, transfer, dissolution, liquidation or winding up is expected to
become effective, and the date as of which it is expected that holders of
Common Stock of record shall be entitled to exchange their shares of Common
Stock for securities, cash or other property, if any, deliverable upon such
reclassification, consolidation, merger, sale, transfer, dissolution,
liquidation or winding up. The failure to give notice required by this Section
or any defect therein shall not affect the legality or validity of any
dividend, distribution, rights, warrants, reclassification, consolidation,
merger, sale, transfer, dissolution, liquidation or winding up, or the vote on
any such action.





                                      -70-
<PAGE>   80

SECTION 1207.  Company to Reserve Common Stock.

          The Company shall at all times reserve and keep available, free from
pre-emptive rights, out of its authorized but unissued Common Stock, for the
purpose of effecting the conversion of Securities, the full number of shares of
Common Stock then issuable upon the conversion of all Outstanding Securities.


SECTION 1208.  Taxes on Conversions.

          The Company will pay any and all taxes that may be payable in respect
of the issue or delivery of shares of Common Stock on conversion of Securities
pursuant hereto. The Company shall not, however, be required to pay any tax
which may be payable in respect of any transfer involved in the issue and
delivery of shares of Common Stock in a name other than that of the Holder of
the Security or Securities to be converted, and no such issue or delivery shall
be made unless and until the person requesting such issue has paid to the
Company the amount of any such tax, or has established to the satisfaction of
the Company that such tax has been paid.


SECTION 1209.  Covenant as to Common Stock.

          The Company covenants that all shares of Common Stock which may be
issued upon conversion of Securities will upon issue be fully paid and
nonassessable and, except as provided in Section 1208, the Company will pay all
taxes, liens and charges with respect to the issue thereof.


SECTION 1210.  Cancellation of Converted Securities.

          All Securities delivered for conversion shall be delivered to the
Trustee to be cancelled by or at the direction of the Trustee, which shall
dispose of the same as provided in Section 309.


SECTION 1211.  Provisions in Case of Consolidation, Merger or Sale of Assets.

          In case of any consolidation of the Company with, or merger of the
Company into, any other Person, or in case of any merger of another Person into
the Company (other than a merger which does not result in any reclassification,
conversion, exchange or cancellation of outstanding shares of Common Stock of
the Company), or in case of any sale or transfer of all or substantially all of
the assets of the Company, the Person formed by such consolidation or resulting
from such merger or which acquires such assets, as the case may be, shall
execute and deliver to the Trustee a supplemental indenture providing that the
Holder of each convertible Security then Outstanding shall have the right
thereafter, during the period such Security shall be convertible as specified
in Section 1201, to convert such Security only into the kind and amount of
securities,





                                      -71-
<PAGE>   81

cash and other property receivable upon such consolidation, merger, sale or
transfer by a holder of the number of shares of Common Stock of the Company
into which such Security might have been converted immediately prior to such
consolidation, merger, sale or transfer, assuming such holder of Common Stock
of the Company failed to exercise his rights of election, if any, as to the
kind or amount of securities, cash and other property receivable upon such
consolidation, merger, sale or transfer (provided that if the kind or amount of
securities, cash and other property receivable upon such consolidation, merger,
sale or transfer is not the same for each share of Common Stock of the Company
in respect of which such rights of election shall not have been exercised
("non-electing share"), then for the purpose of this Section the kind and
amount of securities, cash and other property receivable upon such
consolidation, merger, sale or transfer by each non-electing share shall be
deemed to be the kind and amount so receivable per share by a plurality of the
non-electing shares).

          Such supplemental indenture shall provide for adjustments which, for
events subsequent to the effective date of such supplemental indenture shall be
as nearly equivalent as may be practicable to the adjustments provided for in
this Article. The above provisions of this Section shall similarly apply to
successive consolidations, mergers, sales or transfers.


SECTION 1212.  Responsibility of Trustee.

          Neither the Trustee nor any conversion agent shall at any time be
under any duty or responsibility to any Holder of Securities to determine
whether any fact exists which may require any adjustment of the Conversion
Price, or with respect to the nature or extent of any such adjustment when
made, or with respect to the method employed, or herein or in any supplemental
indenture provided to be employed, in making the same. Neither the Trustee nor
any conversion agent shall be accountable with respect to the registration,
validity or value (or the kind or amount) of any shares of Common Stock, or of
any securities or property, which may at any time be issued or delivered upon
the conversion of any Security; and neither the Trustee nor any conversion
agent makes any representation with respect thereto. Neither the Trustee nor
any conversion agent shall be responsible for any failure of the Company to
issue or transfer or deliver any Common Stock or stock certificates or other
securities or property or to make any cash payment upon the surrender of any
Security for the purpose of conversion or to comply with any of the covenants
of the Company contained in this Article Twelve.





                                      -72-
<PAGE>   82

                                ARTICLE THIRTEEN

                                 SINKING FUNDS


SECTION 1301.  Applicability of Article.

          The provisions of this Article shall be applicable to any sinking
fund for the retirement of Securities of any series except as otherwise
specified as contemplated by Section 301 for such Securities.

          The minimum amount of any sinking fund payment provided for by the
terms of any Securities is herein referred to as a "mandatory sinking fund
payment," and any payment in excess of such minimum amount provided for by the
terms of such Securities is herein referred to as an "optional sinking fund
payment." If provided for by the terms of any Securities, the cash amount of
any sinking fund payment may be subject to reduction as provided in Section
1302. Each sinking fund payment shall be applied to the redemption of
Securities as provided for by the terms of such Securities.


SECTION 1302.  Satisfaction of Sinking Fund Payments with Securities.

          The Company (1) may deliver Outstanding Securities of a series (other
than any previously called for redemption) and (2) may apply as a credit
Securities of a series which have been redeemed either at the election of the
Company pursuant to the terms of such Securities or through the application of
permitted optional sinking fund payments pursuant to the terms of such
Securities, in each case in satisfaction of all or any part of any sinking fund
payment with respect to any Securities of such series required to be made
pursuant to the terms of such Securities as and to the extent provided for by
the terms of such Securities; provided that the Securities to be so credited
have not been previously so credited. The Securities to be so credited shall be
received and credited for such purpose by the Trustee at the Redemption Price,
as specified in the Securities so to be redeemed, for redemption through
operation of the sinking fund and the amount of such sinking fund payment shall
be reduced accordingly.


SECTION 1303.  Redemption of Securities for Sinking Fund.

          Not less than 60 days prior to each sinking fund payment date for any
Securities, the Company  will deliver to the Trustee an Officers' Certificate
specifying the amount of the next ensuing sinking fund payment for such
Securities pursuant to the terms of such Securities, the portion thereof, if
any, which is to be satisfied by payment of cash and the portion thereof, if
any, which is to be satisfied by delivering and crediting Securities pursuant
to Section 1302 and will also deliver to the Trustee any Securities to be so
delivered. Not less than 45 days prior to each such sinking fund payment date,
the Trustee shall select the Securities to be redeemed upon such sinking fund
payment date in the manner specified in Section 1103 and cause notice of the





                                      -73-
<PAGE>   83

redemption thereof to be given in the name of and at the expense of the Company
in the manner provided in Section 1104. Such notice having been duly given, the
redemption of such Securities shall be made upon the terms and in the manner
stated in Sections 1106 and 1107.


                                ARTICLE FOURTEEN

                       DEFEASANCE AND COVENANT DEFEASANCE


SECTION 1401.  Company's Option to Effect Defeasance or Covenant Defeasance.

          The Company may elect, at its option at any time, to have Section
1402 or Section 1403 applied to any Securities or any series of Securities, as
the case may be, designated pursuant to Section 301 as being defeasible
pursuant to such Section 1402 or 1403, in accordance with any applicable
requirements provided pursuant to Section 301 and upon compliance with the
conditions set forth below in this Article. Any such election shall be
evidenced by a Board Resolution or in another manner specified as contemplated
by Section 301 for such Securities.


SECTION 1402.  Defeasance and Discharge.

          Upon the Company's exercise of its option (if any) to have this
Section applied to any Securities or any series of Securities, as the case may
be, the Company shall be deemed to have been discharged from its obligations,
and the provisions of Article Fifteen shall cease to be effective, with respect
to such Securities as provided in this Section on and after the date the
conditions set forth in Section 1404 are satisfied (hereinafter called
"Defeasance"). For this purpose, such Defeasance means that the Company shall
be deemed to have paid and discharged the entire indebtedness represented by
such Securities and to have satisfied all its other obligations under such
Securities and this Indenture insofar as such Securities are concerned (and the
Trustee, at the expense of the Company, shall execute proper instruments
acknowledging the same), subject to the following which shall survive until
otherwise terminated or discharged hereunder: (1) the rights of Holders of such
Securities to receive, solely from the trust fund described in Section 1404 and
as more fully set forth in such Section, payments in respect of the principal
of and any premium and interest on such Securities when payments are due, (2)
the Company's obligations with respect to such Securities under Sections 304,
305, 306, 1002 and 1003, (3) the rights, powers, trusts, duties and immunities
of the Trustee hereunder and (4) this Article.  Subject to compliance with this
Article, the Company may exercise its option (if any) to have this Section
applied to any Securities notwithstanding the prior exercise of its option (if
any) to have Section 1403 applied to such Securities.





                                      -74-
<PAGE>   84

SECTION 1403.  Covenant Defeasance.

          Upon the Company's exercise of its option (if any) to have this
Section applied to any Securities or any series of Securities, as the case may
be, (1) the Company shall be released from its obligations under Section
801(3), Sections 1006 through 1009, inclusive, and any covenants provided
pursuant to Section 301(18), 901(2) or 901(7) for the benefit of the Holders of
such Securities, (2) the occurrence of any event specified in Sections 501(4)
(with respect to any of Section 801(3), Sections 1006 through 1009, inclusive,
and any such covenants provided pursuant to Section 301(18), 901(2) or 901(7)),
501(5) and 501(8) shall be deemed not to be or result in an Event of Default,
and (3) the provisions of Article Fifteen shall cease to be effective in each
case with respect to such Securities as provided in this Section on and after
the date the conditions set forth in Section 1404 are satisfied (hereinafter
called "Covenant Defeasance"). For this purpose, such Covenant Defeasance means
that, with respect to such Securities, the Company may omit to comply with and
shall have no liability in respect of any term, condition or limitation set
forth in any such specified Section (to the extent so specified in the case of
Section 501(4)) or Article Fifteen, whether directly or indirectly by reason of
any reference elsewhere herein to any such Section or Article or by reason of
any reference in any such Section or Article to any other provision herein or
in any other document, but the remainder of this Indenture and such Securities
shall be unaffected thereby.


SECTION 1404.  Conditions to Defeasance or Covenant Defeasance.

          The following shall be the conditions to the application of Section
1402 or Section 1403 to any Securities or any series of Securities, as the case
may be:

          (1)  The Company shall irrevocably have deposited or caused to be
     deposited with the Trustee (or another trustee which satisfies the
     requirements contemplated by Section 609 and agrees to comply with the
     provisions of this Article applicable to it) as trust funds in trust for
     the purpose of making the following payments, specifically pledged as
     security for, and dedicated solely to, the benefits of the Holders of such
     Securities, (A) money in an amount, or (B) U.S. Government Obligations
     which through the scheduled payment of principal and interest in respect
     thereof in accordance with their terms will provide, not later than one
     day before the due date of any payment, money in an amount, or (C) a
     combination thereof, in each case sufficient, in the opinion of a
     nationally recognized firm of independent public accountants expressed in
     a written certification thereof delivered to the Trustee, to pay and
     discharge, and which shall be applied by the Trustee (or any such other
     qualifying trustee) to pay and discharge, the principal of and any premium
     and interest on such Securities on the respective Stated Maturities, in
     accordance with the terms of this Indenture and such Securities. As used
     herein, "U.S.  Government Obligation" means (x) any security which is (i)
     a direct obligation of the United States of America for the payment of
     which the full faith and credit of the United States of America is pledged
     or (ii) an obligation of a Person controlled or supervised by and acting
     as an agency or instrumentality of the





                                      -75-
<PAGE>   85

     United States of America the payment of which is unconditionally
     guaranteed as a full faith and credit obligation by the United States of
     America, which, in either case (i) or (ii), is not callable or redeemable
     at the option of the issuer thereof, and (y) any depositary receipt issued
     by a bank (as defined in Section 3(a)(2) of the Securities Act) as
     custodian with respect to any U.S. Government Obligation which is
     specified in Clause (x) above and held by such bank for the account of the
     holder of such depositary receipt, or with respect to any specific payment
     of principal of or interest on any U.S. Government Obligation which is so
     specified and held, provided that (except as required by law) such
     custodian is not authorized to make any deduction from the amount payable
     to the holder of such depositary receipt from any amount received by the
     custodian in respect of the U.S. Government Obligation or the specific
     payment of principal or interest evidenced by such depositary receipt.

          (2)  In the event of an election to have Section 1402 apply to any
     Securities or any series of Securities, as the case may be, the Company
     shall have delivered to the Trustee an Opinion of Counsel stating that (A)
     the Company has received from, or there has been published by, the
     Internal Revenue Service a ruling or (B) since the date of this
     instrument, there has been a change in the applicable Federal income tax
     law, in either case (A) or (B) to the effect that, and based thereon such
     opinion shall confirm that, the Holders of such Securities will not
     recognize gain or loss for Federal income tax purposes as a result of the
     deposit, Defeasance and discharge to be effected with respect to such
     Securities and will be subject to Federal income tax on the same amount,
     in the same manner and at the same times as would be the case if such
     deposit, Defeasance and discharge were not to occur.

          (3)  In the event of an election to have Section 1403 apply to any
     Securities or any series of Securities, as the case may be, the Company
     shall have delivered to the Trustee an Opinion of Counsel to the effect
     that the Holders of such Securities will not recognize gain or loss for
     Federal income tax purposes as a result of the deposit and Covenant
     Defeasance to be effected with respect to such Securities and will be
     subject to Federal income tax on the same amount, in the same manner and
     at the same times as would be the case if such deposit and Covenant
     Defeasance were not to occur.

          (4)  The Company shall have delivered to the Trustee an Officer's
     Certificate to the effect that neither such Securities nor any other
     Securities of the same series, if then listed on any securities exchange,
     will be delisted as a result of such deposit.

          (5)  No event which is, or after notice or lapse of time or both
     would become, an Event of Default with respect to such Securities or any
     other Securities shall have occurred and be continuing at the time of such
     deposit or, with regard to any such event specified in Sections 501(6) and
     (7), at any time on or prior to the 90th day after the date of such
     deposit (it being understood that this condition shall not be deemed
     satisfied until after such 90th day).





                                      -76-
<PAGE>   86

          (6)  Such Defeasance or Covenant Defeasance shall not cause the
     Trustee to have a conflicting interest within the meaning of the Trust
     Indenture Act (assuming all Securities are in default within the meaning
     of such Act).

          (7)  Such Defeasance or Covenant Defeasance shall not result in a
     breach or violation of, or constitute a default under, any other agreement
     or instrument to which the Company is a party or by which it is bound.

          (8)  Such Defeasance or Covenant Defeasance shall not result in the
     trust arising from such deposit constituting an investment company within
     the meaning of the Investment Company Act unless such trust shall be
     registered under such Act or exempt from registration thereunder.

          (9)  At the time of such deposit, (A) no default in the payment of
     any principal of or premium or interest on any Senior Indebtedness shall
     have occurred and be continuing, (B) no event of default with respect to
     any Senior Indebtedness shall have resulted in such Senior Indebtedness
     becoming, and continuing to be, due and payable prior to the date on which
     it would otherwise have become due and payable (unless payment of such
     Senior Indebtedness has been made or duly provided for), and (C) no other
     event of default with respect to any Senior Indebtedness shall have
     occurred and be continuing permitting (after notice or lapse of time or
     both) the holders of such Senior Indebtedness (or a trustee on behalf of
     such holders) to declare such Senior Indebtedness due and payable prior to
     the date on which it would otherwise have become due and payable.

          (10)  The Company shall have delivered to the Trustee an Officer's
     Certificate and an Opinion of Counsel, each stating that all conditions
     precedent with respect to such Defeasance or Covenant Defeasance have been
     complied with.


SECTION 1405.  Deposited Money and U.S. Government Obligations to Be Held in
               Trust; Miscellaneous Provisions.

          Subject to the provisions of the last paragraph of Section 1003, all
money and U.S. Government Obligations (including the proceeds thereof)
deposited with the Trustee or other qualifying trustee (solely for purposes of
this Section and Section 1406, the Trustee and any such other trustee are
referred to collectively as the "Trustee") pursuant to Section 1404 in respect
of any Securities shall be held in trust and applied by the Trustee, in
accordance with the provisions of such Securities and this Indenture, to the
payment, either directly or through any such Paying Agent (including the
Company acting as its own Paying Agent) as the Trustee may determine, to the
Holders of such Securities, of all sums due and to become due thereon in
respect of principal and any premium and interest, but money so held in trust
need not be segregated from other funds except to the extent required by law.
Money and U.S. Government Obligations so held in trust shall not be subject to
the provisions of Article Fifteen.





                                      -77-
<PAGE>   87

          The Company shall pay and indemnify the Trustee against any tax, fee
or other charge imposed on or assessed against the U.S. Government Obligations
deposited pursuant to Section 1404 or the principal and interest received in
respect thereof other than any such tax, fee or other charge which by law is
for the account of the Holders of Outstanding Securities.

          Anything in this Article to the contrary notwithstanding, the Trustee
shall deliver or pay to the Company from time to time upon Company Request any
money or U.S. Government Obligations held by it as provided in Section 1404
with respect to any Securities which, in the opinion of a nationally recognized
firm of independent public accountants expressed in a written certification
thereof delivered to the Trustee, are in excess of the amount thereof which
would then be required to be deposited to effect the Defeasance or Covenant
Defeasance, as the case may be, with respect to such Securities.


SECTION 1406.  Reinstatement.

          If the Trustee or the Paying Agent is unable to apply any money in
accordance with this Article with respect to any Securities by reason of any
order or judgment of any court or governmental authority enjoining, restraining
or otherwise prohibiting such application, then the obligations under this
Indenture and such Securities from which the Company has been discharged or
released pursuant to Section 1402 or 1403 shall be revived and reinstated as
though no deposit had occurred pursuant to this Article with respect to such
Securities, until such time as the Trustee or Paying Agent is permitted to
apply all money held in trust pursuant to Section 1405 with respect to such
Securities in accordance with this Article; provided, however, that if the
Company makes any payment of principal of or any premium or interest on any
such Security following such reinstatement of its obligations, the Company
shall be subrogated to the rights (if any) of the Holders of such Securities to
receive such payment from the money so held in trust.


                                ARTICLE FIFTEEN

                          SUBORDINATION OF SECURITIES


SECTION 1501.  Securities Subordinate to Senior Indebtedness.

          The Company covenants and agrees, and each Holder of a Security, by
his acceptance thereof, likewise covenants  and agrees, that, to the extent and
in the manner hereinafter set forth in this Article (subject to the provisions
of Article Four and Article Fourteen), the payment of the principal of (and
premium, if any) and interest on each and all of the Securities are hereby
expressly made subordinate and subject in right of payment to the prior payment
in full of all Senior Indebtedness.





                                      -78-
<PAGE>   88

SECTION 1502.  Payment Over of Proceeds Upon Dissolution, Etc.

          In the event of (a) any insolvency or bankruptcy case or proceeding,
or any receivership, liquidation, reorganization or other similar case or
proceeding in connection therewith, relative to the Company or to its
creditors, as such, or to its assets, or (b) any liquidation, dissolution or
other winding up of the Company, whether voluntary or involuntary and whether
or not involving insolvency or bankruptcy, or (c) any assignment for the
benefit of creditors or any other marshalling of assets and liabilities of the
Company, then and in any such event specified in (a), (b) or (c) above (each
such event, if any, herein sometimes referred to as a "Proceeding") the holders
of Senior Indebtedness shall be entitled to receive payment in full of all
amounts due or to become due on or in respect of all Senior Indebtedness, or
provision shall be made for such payment in cash or cash equivalents or
otherwise in a manner satisfactory to the holders of Senior Indebtedness,
before the Holders of the Securities are entitled to receive any payment or
distribution of any kind or character, whether in cash, property or securities,
on account of principal of (or premium, if any) or interest on or other
obligations in respect of the Securities or on account of any purchase or other
acquisition of Securities by the Company or any Subsidiary of the Company (all
such payments, distributions, purchases and acquisitions herein referred to,
individually and collectively, as a "Securities Payment"), and to that end the
holders of Senior Indebtedness shall be entitled to receive, for application to
the payment thereof, any Securities Payment which may be payable or deliverable
in respect of the Securities in any such Proceeding.

          In the event that, notwithstanding the foregoing provisions of this
Section, the Trustee or the Holder of any Security shall have received any
Securities Payment before all Senior Indebtedness is paid in full or payment
thereof provided for in cash or cash equivalents or otherwise in a manner
satisfactory to the holders of Senior Indebtedness, and if such fact shall, at
or prior to the time of such Securities Payment, have been made known to the
Trustee or, as the case may be, such Holder, then and in such event such
Securities Payment shall be paid over or delivered forthwith to the trustee in
bankruptcy, receiver, liquidating trustee, custodian, assignee, agent or other
Person making payment or distribution of assets of the Company for application
to the payment of all Senior Indebtedness remaining unpaid, to the extent
necessary to pay all Senior Indebtedness in full, after giving effect to any
concurrent payment or distribution to or for the holders of Senior
Indebtedness.

          For purposes of this Article only, the words "any payment or
distribution of any kind or character, whether in cash, property or securities"
shall not be deemed to include a payment or distribution of stock or securities
of the Company provided for by a plan of reorganization or readjustment
authorized by an order or decree of a court of competent jurisdiction in a
reorganization proceeding under any applicable bankruptcy law or of any other
corporation provided for by such plan of reorganization or readjustment which
stock or securities are subordinated in right of payment to all then
outstanding Senior Indebtedness to substantially the same extent as the
Securities are so subordinated as provided in this Article. The consolidation
of the Company with, or the merger of the Company into, another Person or the
liquidation or dissolution of the Company following the conveyance or transfer
of all or substantially all of its properties





                                      -79-
<PAGE>   89

and assets as an entirety to another Person upon the terms and conditions set
forth in Article Eight shall not be deemed a Proceeding for the purposes of
this Section if the Person formed by such consolidation or into which the
Company is merged or the Person which acquires by conveyance or transfer such
properties and assets as an entirety, as the case may be, shall, as a part of
such consolidation, merger, conveyance or transfer, comply with the conditions
set forth in Article Eight.


SECTION 1503.  No Payment When Senior Indebtedness in Default.

          In the event that any Securities are declared due and payable before
their Stated Maturity, then and in such event the holders of the Senior
Indebtedness outstanding at the time such Securities so become due and payable
shall be entitled to receive payment in full of all amounts due or to become
due on or in respect of all Senior Indebtedness, or provision shall be made for
such payment in cash or cash equivalents or otherwise in a manner satisfactory
to the holders of such Senior Indebtedness, before the Holders of the
Securities are entitled to receive any Securities Payment.

          In the event and during the continuation of any default in the
payment of principal of (or premium, if any) or interest on any Senior
Indebtedness beyond any applicable grace period with respect thereto, or in the
event that any event of default with respect to any Senior Indebtedness shall
have occurred and be continuing permitting the holders of such Senior
Indebtedness (or a trustee on behalf of the holders thereof) to declare such
Senior Indebtedness due and payable prior to the date on which it would
otherwise have become due and payable, unless and until such event of default
shall have been cured or waived or shall have ceased to exist and such
acceleration shall have been rescinded or annulled, then no Securities Payment
shall be made.

          In the event that, notwithstanding the foregoing, the Company shall
make any Securities Payment to the Trustee or any Holder prohibited by the
foregoing provisions of this Section, and if such fact shall, at or prior to
the time of such Securities Payment, have been made known to the Trustee or, as
the case may be, such Holder, then and in such event such Securities Payment
shall be paid over and delivered forthwith to the Company.

          The provisions of this Section shall not apply to any Securities
Payment with respect to which Section 1502 would be applicable.


SECTION 1504.  Payment Permitted If No Default.

          Nothing contained in this Article or elsewhere in this Indenture or
in any of the Securities shall prevent (a) the Company, at any time except
during the pendency of any Proceeding referred to in Section 1502 or under the
conditions described in Section 1503, from making Securities Payments, or (b)
the application by the Trustee of any money deposited with it hereunder to
Securities Payments or the retention of such Securities Payment by the Holders,
if, at the time of such application by the Trustee, it did not have





                                      -80-
<PAGE>   90

knowledge that such Securities Payment would have been prohibited by the
provisions of this Article.


SECTION 1505.  Subrogation to Rights of Holders of Senior Indebtedness.

          Subject to the payment in full of all amounts due or to become due on
or in respect of Senior Indebtedness, or the provision for such payment in cash
or cash equivalents or otherwise in a manner satisfactory to the holders of
Senior Indebtedness, the Holders of the Securities shall be subrogated to the
rights of the holders of such Senior Indebtedness to receive payments and
distributions of cash, property and securities applicable to the Senior
Indebtedness until the principal of (and premium, if any) and interest on the
Securities shall be paid in full. For purposes of such subrogation, no payments
or distributions to the holders of the Senior Indebtedness of any cash,
property or securities to which the Holders of the Securities or the Trustee
would be entitled except for the provisions of this Article, and no payments
over pursuant to the provisions of this Article to the holders of Senior
Indebtedness by Holders of the Securities or the Trustee, shall, as among the
Company, its creditors other than holders of Senior Indebtedness and the
Holders of the Securities, be deemed to be a payment or distribution by the
Company to or on account of the Senior Indebtedness.


SECTION 1506.  Provisions Solely to Define Relative Rights.

          The provisions of this Article are and are intended solely for the
purpose of defining the relative  rights of the Holders on the one hand and the
holders of Senior Indebtedness on the other hand. Nothing contained in this
Article or elsewhere in this Indenture or in the Securities is intended to or
shall (a) impair, as among the Company, its creditors other than holders of
Senior Indebtedness and the Holders of the Securities, the obligation of the
Company, which is absolute and unconditional, to pay to the Holders of the
Securities the principal of (and premium, if any) and interest on the
Securities as and when the same shall become due and payable in accordance with
their terms; or (b) affect the relative rights against the Company of the
Holders of the Securities and creditors of the Company other than the holders
of Senior Indebtedness; or (c) prevent the Trustee or the Holder of any
Security from exercising all remedies otherwise permitted by applicable law
upon default under this Indenture, subject to the rights, if any, under this
Article of the holders of Senior Indebtedness to receive cash, property and
securities otherwise payable or deliverable to the Trustee or such Holder.


SECTION 1507.  Trustee to Effectuate Subordination.

          Each Holder of a Security by his acceptance thereof authorizes and
directs the Trustee on his behalf to take such action as may be necessary or
appropriate to effectuate the subordination provided in this Article and
appoints the Trustee his attorney-in-fact for any and all such purposes.





                                      -81-
<PAGE>   91

SECTION 1508.  No Waiver of Subordination Provisions.

          No right of any present or future holder of any Senior Indebtedness
to enforce subordination as herein provided shall at any time in any way be
prejudiced or impaired by any act or failure to act on the part of the Company
or by any act or failure to act, in good faith, by any such holder, or by any
noncompliance by the Company with the terms, provisions and covenants of this
Indenture, regardless of any knowledge thereof any such holder may have or be
otherwise charged with.

          Without in any way limiting the generality of the foregoing
paragraph, the holders of Senior Indebtedness may, at any time and from time to
time, without the consent of or notice to the Trustee or the Holders of the
Securities, without incurring responsibility to the Holders of the Securities
and without impairing or releasing the subordination provided in this Article
or the obligations hereunder of the Holders of the Securities to the holders of
Senior Indebtedness, do any one or more of the following: (i) change the
manner, place or terms of payment or extend the time of payment of, or renew or
alter, Senior Indebtedness, or otherwise amend or supplement in any manner
Senior Indebtedness or any instrument evidencing the same or any agreement
under which Senior Indebtedness is outstanding; (ii) sell, exchange, release or
otherwise deal with any property pledged, mortgaged or otherwise securing
Senior Indebtedness; (iii) release any Person liable in any manner for the
collection of Senior Indebtedness; and (iv) exercise or refrain from exercising
any rights against the Company and any other Person.


SECTION 1509.  Notice to Trustee.

          The Company shall give prompt written notice to the Trustee of any
fact known to the Company which would prohibit the making of any payment to or
by the Trustee in respect of the Securities. Notwithstanding the provisions of
this Article or any other provision of this Indenture, the Trustee shall not be
charged with knowledge of the existence of any facts which would prohibit the
making of any payment to or by the Trustee in respect of the Securities, unless
and until the Trustee shall have received written notice thereof from the
Company or a holder of Senior Indebtedness or from any trustee therefor; and,
prior to the receipt of any such written notice, the Trustee, subject to the
provisions of Section 601, shall be entitled in all respects to assume that no
such facts exist; provided, however, that if the Trustee shall not have
received the notice provided for in this Section at least [two] Business Days
prior to the date upon which by the terms hereof any money may become payable
for any purpose (including, without limitation, the payment of the principal of
(and premium, if any) or interest on any Security), then, anything herein
contained to the contrary notwithstanding, the Trustee shall have full power
and authority to receive such money and to apply the same to the purpose for
which such money was received and shall not be affected by any notice to the
contrary which may be received by it within [two] Business Days prior to such
date.

          Subject to the provisions of Section 601, the Trustee shall be
entitled to rely on the delivery to it of a written notice by a Person
representing himself to be a holder of





                                      -82-
<PAGE>   92

Senior Indebtedness (or a trustee therefor) to establish that such notice has
been given by a holder of Senior Indebtedness (or a trustee therefor). In the
event that the Trustee determines in good faith that further evidence is
required with respect to the right of any Person as a holder of Senior
Indebtedness to participate in any payment or distribution pursuant to this
Article, the Trustee may request such Person to furnish evidence to the
reasonable satisfaction of the Trustee as to the amount of Senior Indebtedness
held by such Person, the extent to which such Person is entitled to participate
in such payment or distribution and any other facts pertinent to the rights of
such Person under this Article, and if such evidence is not furnished, the
Trustee may defer any payment to such Person pending judicial determination as
to the right of such Person to receive such payment.


SECTION 1510.  Reliance on Judicial Order or Certificate of Liquidating Agent.

          Upon any payment or distribution of assets of the Company referred to
in this Article, the Trustee, subject to the provisions of Section 601, and the
Holders of the Securities shall be entitled to rely upon any order or decree
entered by any court of competent jurisdiction in which such Proceeding is
pending, or a certificate of the trustee in bankruptcy, receiver, liquidating
trustee, custodian, assignee for the benefit of creditors, agent or other
Person making such payment or distribution, delivered to the Trustee or to the
Holders of Securities, for the purpose of ascertaining the Persons entitled to
participate in such payment or distribution, the holders of the Senior
Indebtedness and other indebtedness of the Company, the amount thereof or
payable thereon, the amount or amounts paid or distributed thereon and all
other facts pertinent thereto or to this Article.


SECTION 1511.  Trustee Not Fiduciary for Holders of Senior Indebtedness.

          The Trustee shall not be deemed to owe any fiduciary duty to the
holders of Senior Indebtedness and shall not be liable to any such holders if
it shall in good faith mistakenly pay over or distribute to Holders of
Securities or to the Company or to any other Person cash, property or
securities to which any holders of Senior Indebtedness shall be entitled by
virtue of this Article or otherwise.


SECTION 1512.  Rights of Trustee as Holder of Senior Indebtedness; Preservation
               of Trustee's Rights.

          The Trustee in its individual capacity shall be entitled to all the
rights set forth in this Article with respect to any Senior Indebtedness which
may at any time be held by it, to the same extent as any other holder of Senior
Indebtedness, and nothing in this Indenture shall deprive the Trustee of any of
its rights as such holder.

          Nothing in this Article shall apply to claims of, or payments to, the
Trustee under or pursuant to Section 607.





                                      -83-
<PAGE>   93

SECTION 1513.  Article Applicable to Paying Agents.

          In case at any time any Paying Agent other than the Trustee shall
have been appointed by the Company and be then acting hereunder, the term
"Trustee" as used in this Article shall in such case (unless the context
otherwise requires) be construed as extending to and including such Paying
Agent within its meaning as fully for all intents and purposes as if such
Paying Agent were named in this Article in addition to or in place of the
Trustee; provided, however, that Section 1512 shall not apply to the Company or
any Affiliate of the Company if it or such Affiliate acts as Paying Agent.


SECTION 1514.  Defeasance of this Article Fifteen.

          The subordination of the Securities provided by this Article Fifteen
is expressly made subject to the provisions for defeasance or covenant
defeasance in Article Fourteen hereof and, anything herein to the contrary
notwithstanding, upon the effectiveness of any such defeasance or covenant
defeasance, the Securities then outstanding shall thereupon cease to be
subordinated pursuant to this Article Fifteen.
                         _____________________________

          This instrument may be executed in any number of counterparts, each
of which so executed shall be deemed to be an original, but all such
counterparts shall together constitute but one and the same instrument.

          IN WITNESS WHEREOF, the parties hereto have caused this Indenture to
be duly executed, and their respective corporate seals to be hereunto affixed
and attested, all as of the day and year first above written.


                                       BECKMAN INSTRUMENTS, INC.


                                       By________________________________

Attest:

______________________________

                                       THE FIRST NATIONAL BANK OF CHICAGO


                                       By_________________________________

Attest:

______________________________





                                      -84-
<PAGE>   94

STATE OF NEW YORK         )
                          )  ss.:
COUNTY OF NEW YORK        )


          On the ___ day of ________, ____, before me personally came
___________________, to me known, who, being by me duly sworn, did depose and
say that he is ______________ of ____________________________, one of the
corporations described in and which executed the foregoing instrument; that he
knows the seal of said corporation; that the seal affixed to said instrument is
such corporate seal; that it was so affixed by authority of the Board of
Directors of said corporation; and that he signed his name thereto by like
authority.



                                       __________________________________


STATE OF NEW YORK         )
                          )  ss.:
COUNTY OF NEW YORK        )


          On the ___ day of ________, ____, before me personally came
___________________, to me known, who, being by me duly sworn, did depose and
say that he is ______________ of ____________________________, one of the
corporations described in and which executed the foregoing instrument; that he
knows the seal of said corporation; that the seal affixed to said instrument is
such corporate seal; that it was so affixed by authority of the Board of
Directors of said corporation; and that he signed his name thereto by like
authority.



                                       __________________________________





                                      -85-

<PAGE>   1

                                                                   EXHIBIT 5.1

                                  [L&W DRAFT]




                                 April 4, 1996




Beckman Instruments, Inc.
2500 Harbor Boulevard
Fullerton, California  92634

                 Re:      $200,000,000 Aggregate Principal Amount of
                          Debt Securities of Beckman Instruments, Inc.

Ladies and Gentlemen:

                 At your request, we have examined the registration statement
on Form S-3 (the "Registration Statement") being filed by you with the
Securities and Exchange Commission in connection with the registration, under
the Securities Act of 1933, as amended, of up to $200,000,000 aggregate
principal amount of debt securities (the "Debt Securities"), consisting of
debentures, notes, and/or other evidences of indebtedness in one or more
series.  We have also examined the form of indenture (the "Senior Indenture")
between Beckman Instruments, Inc. (the "Company") and The First National Bank
of Chicago, as Trustee (the "Trustee"), under which senior Debt Securities (the
"Senior Debt Securities") are to be issued, and the form of indenture (the
"Subordinated Indenture") between the Company and the Trustee under which
subordinated Debt Securities (the "Subordinated Debt Securities") are to be
issued.

                 In our capacity as your counsel in connection with such
registration, we are familiar with the proceedings taken and proposed to be
taken by the Company in connection with the authorization and issuance of the
Senior Debt Securities and the Subordinated Debt Securities for the purposes of
this opinion, and we have assumed such proceedings will be timely completed in
the manner presently proposed and that the terms of each issuance will
otherwise be in compliance with law.  In addition, we have made such legal and
factual examinations and inquiries, including an examination of originals or
copies certified or otherwise identified to our satisfaction of such documents,
corporate records and instruments, as we have deemed necessary or appropriate
for purposes of this opinion.





<PAGE>   2


Beckman Instruments, Inc.
April 4, 1996
Page 2



                 We are opining herein as to the effect on the subject
transaction only of the internal laws of the State of New York and the General
Corporation Law of the State of Delaware, and we express no opinion with
respect to the applicability thereto, or the effect thereon, of the laws of any
other jurisdiction or, in the case of Delaware, any other laws, or as to any
matters of municipal law or the laws of any other local agencies within the
state.

                 In our examination, we have assumed the genuineness of all
signatures, the authenticity of all documents submitted to us as originals, and
the conformity to authentic original documents of all documents submitted to us
as copies.

                 Subject to the foregoing and the other matters set forth
herein, it is our opinion that, as of the date hereof:

                 1.       The Senior Debt Securities have been duly authorized
         by the Company, and when the Senior Indenture has been duly executed
         by the Company and the Trustee and when the Senior Debt Securities
         have been duly established pursuant to the Senior Indenture, duly
         authenticated by the Trustee and duly executed and delivered on behalf
         of the Company against payment therefor in accordance with the terms
         and provisions of the Senior Indenture and as contemplated by the
         Registration Statement, the Senior Debt Securities will constitute
         valid, binding and enforceable obligations of the Company; and

                 2.       The Subordinated Debt Securities have been duly
         authorized by the Company, and when the Subordinated Indenture has
         been duly executed by the Company and the Trustee and when the
         Subordinated Debt Securities have been duly established pursuant to
         the Subordinated Indenture, duly authenticated by the Trustee and duly
         executed and delivered on behalf of the Company against payment
         therefor in accordance with the terms and provisions of the
         Subordinated Indenture and as contemplated by the Registration
         Statement, the Subordinated Debt Securities will constitute valid,
         binding and enforceable obligations of the Company

                 Our opinion is subject to the following exceptions,
limitations and qualifications:  (i) the effect of bankruptcy, insolvency,
fraudulent conveyance, reorganization, moratorium or other similar laws now or
hereafter in effect relating to or





<PAGE>   3


Beckman Instruments, Inc.
April 4, 1996
Page 3


affecting the rights and remedies of creditors; (ii) the effect of general
principles of equity, whether enforcement is considered in a proceeding in
equity or law, and the discretion of the court before which any proceeding
therefor may be brought; (iii) the unenforceability under certain circumstances
under law or court decisions of provisions providing for the indemnification of
or contribution to a party with respect to a liability where such
indemnification or contribution is contrary to public policy; (iv) we express
no opinion concerning the enforceability of the waiver of rights or defenses
contained in the Senior Indenture and the Subordinated Indenture; and (v) the
manner by which the acceleration of the Senior Debt Securities and the
Subordinated Debt Securities may affect the collectibility of that portion of
the stated principal amount thereof which might be determined to constitute
unearned interest thereon.

                 To the extent that the obligations of the Company under the
Senior Indenture and the Subordinated Indenture may be dependent upon such
matters, we assume for purposes of this opinion that the Trustee is duly
organized, validly existing and in good standing under the laws of its
jurisdiction of organization; that the Trustee is duly qualified to engage in
the activities contemplated by the Senior Indenture and the Subordinated
Indenture; that the Senior Indenture and the Subordinated Indenture have been
duly authorized, executed and delivered by the Trustee and constitute the
legally valid, binding and enforceable obligation of the Trustee enforceable
against the Trustee in accordance with its terms; that the Trustee is in
compliance, generally with respect to acting as a trustee under the Senior
Indenture and the Subordinated Indenture, with all applicable laws and
regulations; and that the Trustee has the requisite organizational and legal
power and authority to perform its obligations under the Senior Indenture and
the Subordinated Indenture.

                 We consent to your filing this opinion as an exhibit to the
Registration Statement and to the reference to our firm under the caption
"Legal Matters" in the prospectus included therein.

                                        Very truly yours,

                               
                                        LATHAM & WATKINS



<PAGE>   1






                                                                   Exhibit 12.1



                           Beckman Instruments, Inc.
               Computation Of Ratio Of Earnings To Fixed Charges
                             (Dollars in millions)

<TABLE>
<CAPTION>
                                                   Year Ended December 31,
                                           1995    1994     1993     1992     1991
                                          -----    -----   ------    -----    -----
<S>                                       <C>     <C>      <C>       <C>      <C>
Earnings (loss) before income taxes       $72.4    $74.9   $(53.9)   $70.7    $63.8
Add:
  Interest expense                         13.4     13.2     12.7     13.0     15.3
  Portion of rents representative of
    interest factor                         9.7      8.2     10.4      8.6      8.6
                                          -----------------------------------------
      Earnings (loss) as adjusted         $95.5    $96.3   $(30.8)   $92.3    $87.7

Fixed charges:
  Interest expense                        $13.4    $13.2    $12.7    $13.0    $15.3
  Portion of rents representative of
    interest factor                         9.7      8.2     10.4      8.6      8.6
                                          -----------------------------------------
      Total Fixed Charges                 $23.1    $21.4   $ 23.1    $21.6    $23.9

Ratio of earnings (loss) before income
  taxes to fixed charges                    4.1      4.5     *         4.3      3.7
</TABLE>

* Earnings were inadequate to cover fixed charges for the year ended December
31, 1993.  The coverage deficiency was approximately $53.9.






<PAGE>   1




                                                                    EXHIBIT 23.1

                        CONSENT OF INDEPENDENT AUDITORS

The Board of Directors
Beckman Instruments, Inc.:

We consent to the use of our report incorporated herein by reference and to the
reference to our firm under the heading "Experts" in the prospectus.

Our report refers to the adoption of the Financial Accounting Standards Board's
Statement of Financial Accounting Standards No. 112, "Employers' Accounting for
Postemployment Benefits", in 1994 and Statement of Financial Accounting
Standards No. 109, "Accounting for Income Taxes", and Statement of Financial
Accounting Standards No. 106, "Employers' Accounting for Postretirement
Benefits Other Than Pensions", in 1993.





                                                           KPMG PEAT MARWICK LLP




Orange County, California
April 4, 1996

<PAGE>   1

                                                                    EXHIBIT 25.1
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM T-1

                            STATEMENT OF ELIGIBILITY
                     UNDER THE TRUST INDENTURE ACT OF 1939
                 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE

                CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY
                OF A TRUSTEE PURSUANT TO SECTION 305(B)(2) _____

                       _________________________________

                       THE FIRST NATIONAL BANK OF CHICAGO
              (EXACT NAME OF TRUSTEE AS SPECIFIED IN ITS CHARTER)

<TABLE>
<S>                                                                 <C>
A NATIONAL BANKING ASSOCIATION                                      36-0899825
                                                                    (I.R.S. EMPLOYER
                                                                    IDENTIFICATION NUMBER)

ONE FIRST NATIONAL PLAZA, CHICAGO, ILLINOIS                         60670-0126
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                            (ZIP CODE)
</TABLE>

                       THE FIRST NATIONAL BANK OF CHICAGO
                      ONE FIRST NATIONAL PLAZA, SUITE 0286
                         CHICAGO, ILLINOIS  60670-0286
            ATTN:  LYNN A. GOLDSTEIN, LAW DEPARTMENT (312) 732-6919
           (NAME, ADDRESS AND TELEPHONE NUMBER OF AGENT FOR SERVICE)

                      ___________________________________

                           BECKMAN INSTRUMENTS, INC.
              (EXACT NAME OF OBLIGOR AS SPECIFIED IN ITS CHARTER)

<TABLE>
<S>                                                                 <C>
DELAWARE                                                            95-1040600
(STATE OR OTHER JURISDICTION OF                                     (I.R.S. EMPLOYER
 INCORPORATION OR ORGANIZATION)                                     IDENTIFICATION NUMBER)


2500 HARBOR BOULEVARD
FULLERTON, CALIFORNIA                                               92634
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                            (ZIP CODE)
</TABLE>


                             SENIOR DEBT SECURITIES
                        (TITLE OF INDENTURE SECURITIES)
<PAGE>   2

ITEM 1.          GENERAL INFORMATION.  FURNISH THE FOLLOWING
                 INFORMATION AS TO THE TRUSTEE:

                 (A)      NAME AND ADDRESS OF EACH EXAMINING OR SUPERVISING
                 AUTHORITY TO WHICH IT IS SUBJECT.

                 Comptroller of Currency, Washington, D.C.,
                 Federal Deposit Insurance Corporation,
                 Washington, D.C., The Board of Governors of
                 the Federal Reserve System, Washington D.C.

                 (B)      WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST
                 POWERS.

                 The trustee is authorized to exercise corporate trust powers.

ITEM 2.          AFFILIATIONS WITH THE OBLIGOR.  IF THE OBLIGOR
                 IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH
                 SUCH AFFILIATION.

                 No such affiliation exists with the trustee.


ITEM 16.         LIST OF EXHIBITS.   LIST BELOW ALL EXHIBITS FILED AS A
                 PART OF THIS STATEMENT OF ELIGIBILITY.

                 1.  A copy of the articles of association of the trustee now
                     in effect.*

                 2.  A copy of the certificates of authority of the trustee to
                     commence business.*

                 3.  A copy of the authorization of the trustee to exercise
                     corporate trust powers.*

                 4.  A copy of the existing by-laws of the trustee.*

                 5.  Not Applicable.

                 6.  The consent of the trustee required by Section 321(b) of
                     the Act.





                                       2
<PAGE>   3

                 7.  A copy of the latest report of condition of the trustee
                     published pursuant to law or the requirements of its
                     supervising or examining authority.

                 8.  Not Applicable.

                 9.  Not Applicable.


         Pursuant to the requirements of the Trust Indenture Act of 1939, as
         amended, the trustee, The First National Bank of Chicago, a national
         banking association organized and existing under the laws of the
         United States of America, has duly caused this Statement of
         Eligibility to be signed on its behalf by the undersigned, thereunto
         duly authorized, all in the City of Chicago and State of Illinois, on
         the 2nd day of April, 1996.


                     THE FIRST NATIONAL BANK OF CHICAGO,
                     TRUSTEE,

                     BY    /S/ JOHN R. PRENDIVILLE
                          JOHN R. PRENDIVILLE
                          VICE PRESIDENT



         *Exhibits 1, 2, 3 and 4 are herein incorporated by reference to
         Exhibits bearing identical numbers in Item 12 of the Form T-1 of The
         First National  Bank of Chicago, filed as Exhibit 26 to the
         Registration Statement on  Form S-3 of The CIT Group Holdings, Inc.
         filed with the Securities and Exchange Commission on February 16, 1993
         (Registration No. 33-58418).





                                       3
<PAGE>   4

                                   EXHIBIT 6



                      THE CONSENT OF THE TRUSTEE REQUIRED
                          BY SECTION 321(b) OF THE ACT


                                 April 2, 1996




Securities and Exchange Commission
Washington, D.C.  20549

Gentlemen:

In connection with the qualification of an indenture between Beckman
Instruments, Inc. and The First National Bank of Chicago, the undersigned, in
accordance with Section 321(b) of the Trust Indenture Act of 1939, as amended,
hereby consents that the reports of examinations of the undersigned, made by
Federal or State authorities authorized to make such examinations, may be
furnished by such authorities to the Securities and Exchange Commission upon
its request therefor.


                                  Very truly yours,

                                  THE FIRST NATIONAL BANK OF CHICAGO

                                  BY       /S/ JOHN R. PRENDIVILLE
                                           JOHN R. PRENDIVILLE
                                           VICE PRESIDENT





                                       4
<PAGE>   5
                                   EXHIBIT 7

<TABLE>
<S>                               <C>                                        <C>                  <C>     <C>
Legal Title of Bank:              The First National Bank of Chicago         Call Date: 12/31/95  ST-BK:  17-1630 FFIEC 031
Address:                          One First National Plaza, Suite 0460                                              Page RC-1
City, State  Zip:                 Chicago, IL  60670-0460
FDIC Certificate No.:             0/3/6/1/8
                                  ---------
</TABLE>

CONSOLIDATED REPORT OF CONDITION FOR INSURED COMMERCIAL
AND STATE-CHARTERED SAVINGS BANKS FOR DECEMBER 31, 1995

All schedules are to be reported in thousands of dollars.  Unless otherwise
indicated, report the amount outstanding of the last business day of the
quarter.

SCHEDULE RC--BALANCE SHEET


<TABLE>
<CAPTION>
                                                                                                            C400            <- 
                                                                    DOLLAR AMOUNTS IN                   ------------      ------
                                                                       THOUSANDS             RCFD       BIL MIL THOU      
                                                                    ----------------         ----       ------------      
<S>                                                                                        <C>          <C>               <C>
ASSETS
1.  Cash and balances due from depository institutions (from                         
    Schedule RC-A):                                                                  
    a. Noninterest-bearing balances and currency and coin(1)  . . . .                           0081     4,003,995        1.a.
    b. Interest-bearing balances(2) . . . . . . . . . . . . . . . . .                           0071     9,240,284        1.b.
2.  Securities                                                                       
    a. Held-to-maturity securities(from Schedule RC-B, column A)  . .                           1754             0        2.a.
    b. Available-for-sale securities (from Schedule RC-B, column D) .                           1773       827,134        2.b.
3.  Federal funds sold and securities purchased under agreements to                  
    resell in domestic offices of the bank and its Edge and                          
    Agreement subsidiaries, and in IBFs:                                             
    a. Federal Funds sold . . . . . . . . . . . . . . . . . . . . . .                           0276     3,287,844        3.a.
    b. Securities purchased under agreements to resell  . . . . . . .                           0277       612,400        3.b.
4.  Loans and lease financing receivables:                                           
    a. Loans and leases, net of unearned income (from Schedule                       
    RC-C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        RCFD 2122    16,463,126                      4.a.
    b. LESS: Allowance for loan and lease losses  . . . . . . . . . .        RCFD 3123       353,777                      4.b.
    c. LESS: Allocated transfer risk reserve  . . . . . . . . . . . .        RCFD 3128             0                      4.c.
    d. Loans and leases, net of unearned income, allowance, and                      
       reserve (item 4.a minus 4.b and 4.c) . . . . . . . . . . . . .                           2125    16,109,349        4.d.
5.  Assets held in trading accounts . . . . . . . . . . . . . . . . .                           3545    12,379,396        5.
6.  Premises and fixed assets (including capitalized leases)  . . . .                           2145       591,753        6.
7.  Other real estate owned (from Schedule RC-M)  . . . . . . . . . .                           2150         8,796        7.
8.  Investments in unconsolidated subsidiaries and associated                        
    companies (from Schedule RC-M)  . . . . . . . . . . . . . . . . .                           2130        40,560        8.
9.  Customers' liability to this bank on acceptances outstanding  . .                           2155       524,918        9.
10. Intangible assets (from Schedule RC-M)  . . . . . . . . . . . . .                           2143       101,011       10.
11. Other assets (from Schedule RC-F) . . . . . . . . . . . . . . . .                           2160     1,633,056       11.
12. Total assets (sum of items 1 through 11)  . . . . . . . . . . . .                           2170    49,360,496       12.
</TABLE>

__________________

(1)  Includes cash items in process of collection and unposted debits.
(2)  Includes time certificates of deposit not held in trading accounts.





                                       5
<PAGE>   6
<TABLE>
<S>                               <C>                                        <C>          <C>              <C>
Legal Title of Bank:              The First National Bank of Chicago         Call Date:   12/31/95 ST-BK:  17-1630 FFIEC 031
Address:                          One First National Plaza, Suite 0460                                                 Page RC-2
City, State  Zip:                 Chicago, IL  60670-0460
FDIC Certificate No.:             0/3/6/1/8
                                  ---------
</TABLE>

SCHEDULE RC-CONTINUED
<TABLE>
<CAPTION>
                                                                DOLLAR AMOUNTS IN
                                                                    Thousands                         BIL MIL THOU
                                                                -----------------                     ------------
<S>                                                             <C>                       <C>           <C>          <C>
LIABILITIES                                                    
13. Deposits:                                             
    a. In domestic offices (sum of totals of columns A and C   
       from Schedule RC-E, part 1)  . . . . . . . . . . . . . .                           RCON 2200    15,174,243      13.a.   
       (1) Noninterest-bearing(1) . . . . . . . . . . . . . . .     RCON 6631             6,217,164                    13.a.(1)
       (2) Interest-bearing . . . . . . . . . . . . . . . . . .     RCON 6636             8,957,079                    13.a.(2)
    b. In foreign offices, Edge and Agreement subsidiaries, and                                                                
       IBFs (from Schedule RC-E, part II) . . . . . . . . . . .                           RCFN 2200    14,435,503      13.b.   
       (1) Noninterest bearing  . . . . . . . . . . . . . . . .     RCFN 6631               625,206                    13.b.(1)
       (2) Interest-bearing . . . . . . . . . . . . . . . . . .     RCFN 6636            13,810,297                    13.b.(2)
14. Federal funds purchased and securities sold under          
    agreements to repurchase in domestic offices of the bank   
    and of its Edge and Agreement subsidiaries, and in IBFs:   
    a. Federal funds purchased  . . . . . . . . . . . . . . . .                           RCFD 0278     2,449,282      14.a.
    b. Securities sold under agreements to repurchase . . . . .                           RCFD 0279       880,215      14.b.
15. a. Demand notes issued to the U.S. Treasury . . . . . . . .                           RCON 2840        93,942      15.a.
    b. Trading Liabilities  . . . . . . . . . . . . . . . . . .                           RCFD 3548     7,523,265      15.b.
16. Other borrowed money:                                                                                                   
    a. With original maturity of one year or less . . . . . . .                           RCFD 2332     1,897,370      16.a.
    b. With original  maturity of more than one year  . . . . .                           RCFD 2333       383,807      16.b.
17. Mortgage indebtedness and obligations under capitalized                                                                 
    leases  . . . . . . . . . . . . . . . . . . . . . . . . . .                           RCFD 2910       280,522      17.  
18. Bank's liability on acceptance executed and outstanding                               RCFD 2920       524,918      18.  
19. Subordinated notes and debentures   . . . . . . . . . . . .                           RCFD 3200     1,225,000      19.  
20. Other liabilities (from Schedule RC-G)  . . . . . . . . . .                           RCFD 2930     1,444,364      20.  
21. Total liabilities (sum of items 13 through 20)  . . . . . .                           RCFD 2948    46,312,431      21.  
22. Limited-Life preferred stock and related surplus  . . . . .                           RCFD 3282         0          22.  
EQUITY CAPITAL                                                                                                              
23. Perpetual preferred stock and related surplus . . . . . . .                           RCFD 3838         0          23.  
24. Common stock  . . . . . . . . . . . . . . . . . . . . . . .                           RCFD 3230       200,858      24.  
25. Surplus (exclude all surplus related to preferred stock)                              RCFD 3839     2,320,126      25.  
26. a. Undivided profits and capital reserves . . . . . . . . .                           RCFD 3632       519,849      26.a.
    b. Net unrealized holding gains (losses) on                                                                             
       available-for-sale securities  . . . . . . . . . . . . .                           RCFD 8434         7,315      26.b.
27. Cumulative foreign currency translation adjustments . . . .                           RCFD 3284           (83)     27.  
28. Total equity capital (sum of items 23 through 27) . . . . .                           RCFD 3210     3,048,065      28.  
29. Total liabilities, limited-life preferred stock, and                                                                    
    equity capital (sum of items 21, 22, and 28)  . . . . . . .                           RCFD 3300    49,360,496      29.  
</TABLE>

Memorandum
To be reported only with the March Report of Condition.

<TABLE>
<S> <C>                                                                                                 <C>                <C>
1.  Indicate in the box at the right the number of the statement below that best describes the                                
    most comprehensive level of auditing work performed for the bank by independent external                Number            
                                                                                                        ----------------        
    auditors as of any date during 1993  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  RCFD  6724   N/A    M.1.
</TABLE>

<TABLE>
<S> <C>                                                         <C>  <C>                                                       
1 = Independent audit of the bank conducted in accordance       4 =  Directors' examination of the bank performed by other     
    with generally accepted auditing standards by a certified        external auditors (may be required by state chartering    
    public accounting firm which submits a report on the bank        authority)                                                
2 = Independent audit of the bank's parent holding company      5 =  Review of the bank's financial statements by external     
    conducted in accordance with generally accepted auditing         auditors                                                  
    standards by a certified public accounting firm which       6 =  Compilation of the bank's financial statements by external
    submits a report on the consolidated holding company             auditors                                                  
    (but not on the bank separately)                            7 =  Other audit procedures (excluding tax preparation work)   
3 = Directors' examination of the bank conducted in             8 =  No external audit work                                    
    accordance with generally accepted auditing standards
    by a certified public accounting firm (may be required by
    state chartering authority)
</TABLE>

___________________
(1) Includes total demand deposits and noninterest-bearing time and savings
    deposits.





                                       6

<PAGE>   1
                                                                    EXHIBIT 25.2
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM T-1

                            STATEMENT OF ELIGIBILITY
                     UNDER THE TRUST INDENTURE ACT OF 1939
                 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE

                CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY
                OF A TRUSTEE PURSUANT TO SECTION 305(B)(2) _____

                       _________________________________

                       THE FIRST NATIONAL BANK OF CHICAGO
              (EXACT NAME OF TRUSTEE AS SPECIFIED IN ITS CHARTER)

<TABLE>
<S>                                                                 <C>
A NATIONAL BANKING ASSOCIATION                                      36-0899825
                                                                 (I.R.S. EMPLOYER
                                                              IDENTIFICATION NUMBER)

ONE FIRST NATIONAL PLAZA, CHICAGO, ILLINOIS                         60670-0126
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                            (ZIP CODE)
</TABLE>

                       THE FIRST NATIONAL BANK OF CHICAGO
                      ONE FIRST NATIONAL PLAZA, SUITE 0286
                         CHICAGO, ILLINOIS   60670-0286
            ATTN:  LYNN A. GOLDSTEIN, LAW DEPARTMENT (312) 732-6919
           (NAME, ADDRESS AND TELEPHONE NUMBER OF AGENT FOR SERVICE)

                      ___________________________________

                           BECKMAN INSTRUMENTS, INC.
              (EXACT NAME OF OBLIGOR AS SPECIFIED IN ITS CHARTER)

<TABLE>
<S>                                                                 <C>
DELAWARE                                                            95-1040600
(STATE OR OTHER JURISDICTION OF                                  (I.R.S. EMPLOYER
 INCORPORATION OR ORGANIZATION)                               IDENTIFICATION NUMBER)


2500 HARBOR BOULEVARD
FULLERTON, CALIFORNIA                                                  92634
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                            (ZIP CODE)
</TABLE>


                          SUBORDINATED DEBT SECURITIES
                        (TITLE OF INDENTURE SECURITIES)





                                       
<PAGE>   2

ITEM 1.          GENERAL INFORMATION.  FURNISH THE FOLLOWING
                 INFORMATION AS TO THE TRUSTEE:

                 (A)      NAME AND ADDRESS OF EACH EXAMINING OR SUPERVISING
                 AUTHORITY TO WHICH IT IS SUBJECT.

                 Comptroller of Currency, Washington, D.C.,
                 Federal Deposit Insurance Corporation,
                 Washington, D.C., The Board of Governors of
                 the Federal Reserve System, Washington D.C.

                 (B)      WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST
                 POWERS.

                 The trustee is authorized to exercise corporate trust powers.

ITEM 2.          AFFILIATIONS WITH THE OBLIGOR.  IF THE OBLIGOR
                 IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH
                 SUCH AFFILIATION.

                 No such affiliation exists with the trustee.


ITEM 16.         LIST OF EXHIBITS.   LIST BELOW ALL EXHIBITS FILED AS A
                 PART OF THIS STATEMENT OF ELIGIBILITY.

                 1.  A copy of the articles of association of the trustee now
                     in effect.*

                 2.  A copy of the certificates of authority of the trustee to
                     commence business.*

                 3.  A copy of the authorization of the trustee to exercise
                     corporate trust powers.*

                 4.  A copy of the existing by-laws of the trustee.*

                 5.  Not Applicable.

                 6.  The consent of the trustee required by Section 321(b) of
                     the Act.

                                         2
<PAGE>   3

                 7.  A copy of the latest report of condition of the trustee
                     published pursuant to law or the requirements of its
                     supervising or examining authority.

                 8.  Not Applicable.

                 9.  Not Applicable.


         Pursuant to the requirements of the Trust Indenture Act of 1939, as
         amended, the trustee, The First National Bank of Chicago, a national
         banking association organized and existing under the laws of the
         United States of America, has duly caused this Statement of
         Eligibility to be signed on its behalf by the undersigned, thereunto
         duly authorized, all in the City of Chicago and State of Illinois, on
         the 2nd day of April, 1996.


                     THE FIRST NATIONAL BANK OF CHICAGO,
                     TRUSTEE,

                     BY   /S/ JOHN R. PRENDIVILLE
                          JOHN R. PRENDIVILLE
                          VICE PRESIDENT



         *Exhibits 1, 2, 3 and 4 are herein incorporated by reference to
         Exhibits bearing identical numbers in Item 12 of the Form T-1 of The
         First National  Bank of Chicago, filed as Exhibit 26 to the
         Registration Statement on  Form S-3 of The CIT Group Holdings, Inc.
         filed with the Securities and Exchange Commission on February 16, 1993
         (Registration No. 33-58418).





                                       3
<PAGE>   4

                                   EXHIBIT 6



                      THE CONSENT OF THE TRUSTEE REQUIRED
                          BY SECTION 321(b) OF THE ACT


                                 April 2, 1996




Securities and Exchange Commission
Washington, D.C.  20549

Gentlemen:

In connection with the qualification of an indenture between Beckman
Instruments, Inc. and The First National Bank of Chicago, the undersigned, in
accordance with Section 321(b) of the Trust Indenture Act of 1939, as amended,
hereby consents that the reports of examinations of the undersigned, made by
Federal or State authorities authorized to make such examinations, may be
furnished by such authorities to the Securities and Exchange Commission upon
its request therefor.


                                           Very truly yours,

                                           THE FIRST NATIONAL BANK OF CHICAGO

                                  BY       /S/ JOHN R. PRENDIVILLE
                                           JOHN R. PRENDIVILLE
                                           VICE PRESIDENT





                                       4
<PAGE>   5
                                   EXHIBIT 7

<TABLE>
<S>                       <C>                                                <C>                  <C>     <C>
Legal Title of Bank:      The First National Bank of Chicago                 Call Date: 12/31/95  ST-BK:  17-1630 FFIEC 031
Address:                  One First National Plaza, Suite 0460                                              Page RC-1
City, State  Zip:         Chicago, IL  60670-0460
FDIC Certificate No.:     0/3/6/1/8
                          ---------
</TABLE>

CONSOLIDATED REPORT OF CONDITION FOR INSURED COMMERCIAL
AND STATE-CHARTERED SAVINGS BANKS FOR DECEMBER 31, 1995

All schedules are to be reported in thousands of dollars.  Unless otherwise
indicated, report the amount outstanding of the last business day of the
quarter.

SCHEDULE RC--BALANCE SHEET

<TABLE>
<CAPTION>
                                                                                                            C400         
                                                                         DOLLAR AMOUNTS IN              ------------     
                                                                             THOUSANDS         RCFD     BIL MIL THOU       <-  
                                                                         -----------------     ----     ------------     ------
<S>                                                                     <C>                    <C>       <C>              <C>
ASSETS
1.  Cash and balances due from depository institutions (from
    Schedule RC-A):
    a. Noninterest-bearing balances and currency and coin(1)  . . .                             0081     4,003,995        1.a.
    b. Interest-bearing balances(2) . . . . . . . . . . . . . . . .                             0071     9,240,284        1.b.
2.  Securities
    a. Held-to-maturity securities(from Schedule RC-B, column A)                                1754             0        2.a.
    b. Available-for-sale securities (from Schedule RC-B, column D)                             1773       827,134        2.b.
3.  Federal funds sold and securities purchased under agreements
    to resell in domestic offices of the bank and its Edge and 
    Agreement subsidiaries, and in IBFs:
    a. Federal Funds sold . . . . . . . . . . . . . . . . . . . . .                             0276     3,287,844        3.a.
    b. Securities purchased under agreements to resell  . . . . . .                             0277       612,400        3.b.
4.  Loans and lease financing receivables:
    a. Loans and leases, net of unearned income (from
    Schedule RC-C)  . . . . . . . . . . . . . . . . . . . . . . . .     RCFD 2122 16,463,126                              4.a.
    b. LESS: Allowance for loan and lease losses  . . . . . . . . .     RCFD 3123    353,777                              4.b.
    c. LESS: Allocated transfer risk reserve  . . . . . . . . . . .     RCFD 3128          0                              4.c.
    d. Loans and leases, net of unearned income, allowance, and
       reserve (item 4.a minus 4.b and 4.c) . . . . . . . . . . . .                             2125    16,109,349        4.d.
5.  Assets held in trading accounts . . . . . . . . . . . . . . . .                             3545    12,379,396        5.
6.  Premises and fixed assets (including capitalized leases)  . . .                             2145       591,753        6.
7.  Other real estate owned (from Schedule RC-M)  . . . . . . . . .                             2150         8,796        7.
8.  Investments in unconsolidated subsidiaries and associated
    companies (from Schedule RC-M)  . . . . . . . . . . . . . . . .                             2130        40,560        8.
9.  Customers' liability to this bank on acceptances outstanding  .                             2155       524,918        9.
10. Intangible assets (from Schedule RC-M)  . . . . . . . . . . . .                             2143       101,011       10.
11. Other assets (from Schedule RC-F) . . . . . . . . . . . . . . .                             2160     1,633,056       11.
12. Total assets (sum of items 1 through 11)  . . . . . . . . . . .                             2170    49,360,496       12.
</TABLE>

__________________

(1)  Includes cash items in process of collection and unposted debits.
(2)  Includes time certificates of deposit not held in trading accounts.





                                       5
<PAGE>   6
<TABLE>
<S>                               <C>                                        <C>          <C>              <C>
Legal Title of Bank:              The First National Bank of Chicago         Call Date:   12/31/95 ST-BK:  17-1630 FFIEC 031
Address:                          One First National Plaza, Suite 0460                                                 Page RC-2
City, State  Zip:                 Chicago, IL  60670-0460
FDIC Certificate No.:             0/3/6/1/8
                                  ---------
</TABLE>

SCHEDULE RC-CONTINUED

<TABLE>
<CAPTION>
                                                                    DOLLAR AMOUNTS IN
                                                                        Thousands                         BIL MIL THOU
                                                                    ----------------                      ------------
<S>                                                                 <C>                      <C>            <C>           <C>
LIABILITIES
13.  Deposits:
     a. In domestic offices (sum of totals of columns A and C
        from Schedule RC-E, part 1) . . . . . . . . . . . . . . . .                          RCON 2200      15,174,243    13.a.
        (1) Noninterest-bearing(1)  . . . . . . . . . . . . . . . .          RCON 6631       6,217,164                    13.a.(1)
        (2) Interest-bearing  . . . . . . . . . . . . . . . . . . .          RCON 6636       8,957,079                    13.a.(2)
     b. In foreign offices, Edge and Agreement subsidiaries, and
        IBFs (from Schedule RC-E, part II)  . . . . . . . . . . . .                          RCFN 2200      14,435,503    13.b.
        (1) Noninterest bearing . . . . . . . . . . . . . . . . . .          RCFN 6631         625,206                    13.b.(1)
        (2) Interest-bearing  . . . . . . . . . . . . . . . . . . .          RCFN 6636      13,810,297                    13.b.(2)
14.  Federal funds purchased and securities sold under agreements
     to repurchase in domestic offices of the bank and of
     its Edge and Agreement subsidiaries, and in IBFs:
     a. Federal funds purchased  . . . . . . . . . . . . . . . . .                           RCFD 0278       2,449,282    14.a.
     b. Securities sold under agreements to repurchase . . . . . .                           RCFD 0279         880,215    14.b.
15.  a. Demand notes issued to the U.S. Treasury . . . . . . . . .                           RCON 2840          93,942    15.a.
     b. Trading Liabilities  . . . . . . . . . . . . . . . . . . .                           RCFD 3548       7,523,265    15.b.
16.  Other borrowed money:
     a. With original maturity of one year or less . . . . . . . .                           RCFD 2332       1,897,370    16.a.
     b. With original  maturity of more than one year  . . . . . .                           RCFD 2333         383,807    16.b.
17.  Mortgage indebtedness and obligations under capitalized
     leases  . . . . . . . . . . . . . . . . . . . . . . . . . . .                           RCFD 2910         280,522    17.
18.  Bank's liability on acceptance executed and outstanding                                 RCFD 2920         524,918    18.
19.  Subordinated notes and debentures . . . . . . . . . . . . . .                           RCFD 3200       1,225,000    19.
20.  Other liabilities (from Schedule RC-G)  . . . . . . . . . . .                           RCFD 2930       1,444,364    20.
21.  Total liabilities (sum of items 13 through 20)  . . . . . . .                           RCFD 2948      46,312,431    21.
22.  Limited-Life preferred stock and related surplus  . . . . . .                           RCFD 3282             0      22.
EQUITY CAPITAL
23.  Perpetual preferred stock and related surplus . . . . . . . .                           RCFD 3838             0      23.
24.  Common stock  . . . . . . . . . . . . . . . . . . . . . . . .                           RCFD 3230         200,858    24.
25.  Surplus (exclude all surplus related to preferred stock)                                RCFD 3839       2,320,126    25.
26.  a. Undivided profits and capital reserves . . . . . . . . . .                           RCFD 3632         519,849    26.a.
     b. Net unrealized holding gains (losses) on available-for-sale
        securities . . . . . . . . . . . . . . . . . . . . . . . .                           RCFD 8434           7,315    26.b.
27.  Cumulative foreign currency translation adjustments . . . . .                           RCFD 3284             (83)   27.
28.  Total equity capital (sum of items 23 through 27) . . . . . .                           RCFD 3210       3,048,065    28.
29.  Total liabilities, limited-life preferred stock, and equity
     capital (sum of items 21, 22, and 28) . . . . . . . . . . . .                           RCFD 3300      49,360,496    29.
</TABLE>

Memorandum
To be reported only with the March Report of Condition.
<TABLE>
<S> <C>                                                                                          <C>                         <C>
1.  Indicate in the box at the right the number of the statement below that best describes 
    the most comprehensive level of auditing work performed for the bank by independent                   Number
    external auditors as of any date during 1993  . . . . . . . . . . . . . . . . . . . . . .    RCFD  6724  N/A             M.1.
</TABLE>


<TABLE>
<S> <C>                                                            <C> <C>                                                   
1 = Independent audit of the bank conducted in accordance          4 = Directors' examination of the bank performed by other     
    with generally accepted auditing standards by a certified          external auditors (may be required by state chartering    
    public accounting firm which submits a report on the bank          authority)                                                
2 = Independent audit of the bank's parent holding company         5 = Review of the bank's financial statements by external     
    conducted in accordance with generally accepted auditing           auditors                                                  
    standards by a certified public accounting firm which          6 = Compilation of the bank's financial statements by external
    submits a report on the consolidated holding company               auditors                                                  
    (but not on the bank separately)                               7 = Other audit procedures (excluding tax preparation work)   
3 = Directors' examination of the bank conducted in                8 = No external audit work                                    
    accordance with generally accepted auditing standards
    by a certified public accounting firm (may be required by
    state chartering authority)
</TABLE>

___________________
(1) Includes total demand deposits and noninterest-bearing time and savings
    deposits.





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