QUANTUM CORP /DE/
S-3/A, 1997-07-24
COMPUTER STORAGE DEVICES
Previous: ENERGYNORTH INC, 10-Q, 1997-07-24
Next: AMERICAN REPUBLIC REALTY FUND I, 10-Q, 1997-07-24



<PAGE>   1
   
           AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JULY 24, 1997
                                                      REGISTRATION NO. 333-29525
    


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
   
                                Amendment No. 1
                                       to
    
                                    FORM S-3
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                              QUANTUM CORPORATION
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)


                  DELAWARE                                94-2665054
      (STATE OR OTHER JURISDICTION OF                  (I.R.S. EMPLOYER
       INCORPORATION OR ORGANIZATION)                 IDENTIFICATION NO.)

                              500 McCARTHY BOULEVARD
                           MILPITAS, CALIFORNIA 95035
                                 (408) 894-4000
    (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                  OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)


                                MICHAEL A. BROWN
                      PRESIDENT AND CHIEF EXECUTIVE OFFICER
                              QUANTUM CORPORATION
                             500 McCARTHY BOULEVARD
                           MILPITAS, CALIFORNIA 95035
                                 (408) 894-4000
 (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                              OF AGENT FOR SERVICE)

                                   COPIES TO:
                               STEVEN E. BOCHNER
                                  JOHN A. FORE
                        WILSON SONSINI GOODRICH & ROSATI
                            PROFESSIONAL CORPORATION
                               650 PAGE MILL ROAD
                               PALO ALTO, CA 94304
                                 (415) 493-9300

                  
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after the effective date of this Registration Statement. 
     If the only securities being registered on this Form are being offered 
pursuant to 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, other than securities offered only in connection with dividend or interest
reinvestment 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,
please check the following box. / /

                            
                              _________________

     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 of 1933 or until the Registration Statement shall become
effective on such date as the Commission, acting pursuant to said Section 8(a),
may determine.
    

<PAGE>   2


   
                   SUBJECT TO COMPLETION, DATED JULY 24, 1997
    
 PROSPECTUS
                                  $450,000,000

    [LOGO]                    QUANTUM CORPORATION

                        Debt Securities and Common Stock
                          ____________________________

         Quantum Corporation ("Quantum" or the "Company") may from time to
time offer, together or separately, (1) its debt securities (the "Debt
Securities"), which may be either senior debt securities (the "Senior Debt
Securities") or subordinated debt securities (the "Subordinated Debt
Securities") and (2) shares of its common stock, par value $0.01 per share
(the "Common Stock").  The Debt Securities and the Common Stock are
collectively referred to herein as the "Securities".

   
         The Securities offered pursuant to this Prospectus may be issued in one
or more series or issuances and will be limited to $450,000,000 aggregate public
offering price (or its equivalent (based on the applicable exchange rate at the
time of the sale) in one or more foreign currencies, currency units or composite
currencies as shall be designated by the Company).  Certain specific terms of
the particular Securities in respect of which this Prospectus is being delivered
will be set forth in an accompanying Prospectus Supplement (the "Prospectus
Supplement"), including, where applicable, (i) in the case of Debt Securities,
the specific title, aggregate principal amount, the denomination, whether such
Debt Securities are secured or unsecured obligations, whether such Debt
Securities are senior or subordinated, maturity, premium, if any, the interest
rate (which may be fixed, floating or adjustable), the time and method of
calculating payment of interest, if any, the place or places where principal of
(and premium, if any) and interest, if any, on such Debt Securities will be
payable, the currency in which principal of (and premium, if any) and interest,
if any, on such Debt Securities will be payable, any terms of redemption at the
option of the Company or the Holder, any sinking fund provisions, terms for any
conversion or exchange into Securities or other securities of the Company
(provided, however, that any such other securities issuable upon exchange or
conversion of Debt Securities will be subject to registration under the
Securities Act or an applicable exemption therefrom) or property, the initial
public offering price and other special terms and (ii) in the case of Common
Stock, the number of shares offered for sale by the Company and the initial
public offering price or method of determining the initial public offering
price.  If so specified in the applicable Prospectus Supplement, Debt Securities
of a series may be issued in whole or in part in the form of one or more
temporary or permanent global securities.  The Company's Common Stock is listed
on the Nasdaq National Market under the symbol "QNTM".  Any Common Stock sold
pursuant to a Prospectus Supplement will be quoted on such market.
    

         Unless otherwise specified in a Prospectus Supplement, the Senior Debt
Securities, when issued, will be unsecured and will rank equally with all other
unsecured and unsubordinated indebtedness of the Company.  The Subordinated Debt
Securities, when issued, will be subordinated in right of payment to all Senior
Indebtedness (as defined) of the Company, including any outstanding Senior Debt
Securities.  See "Description of Debt Securities -- Subordination of
Subordinated Debt Securities".

         The Prospectus Supplement may contain information concerning U.S.
federal income tax considerations, if applicable to the Securities offered.

         The Securities may be sold directly, through agents, underwriters or
dealers as designated from time to time, or through a combination of such
methods.  See "Plan of Distribution".  If agents of the Company or any dealers
or underwriters are involved in the sale of the Securities in respect of which
the Prospectus is being delivered, the names of such agents, dealers or
underwriters and any applicable commissions or discounts, if any, are set forth
in or may be calculated from the Prospectus Supplement with respect to such
Securities.

         This Prospectus may not be used to consummate sales of Securities
unless accompanied by a Prospectus Supplement.

         SEE "RISK FACTORS" ON PAGE 3 OF THIS PROSPECTUS FOR A DESCRIPTION OF
CERTAIN FACTORS THAT SHOULD BE CONSIDERED IN CONNECTION WITH AN INVESTMENT IN
THE SECURITIES.
                  _______________________________________________

  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 COM-
           MISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PRO-
               SPECTUS.  ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.

   
                 The date of this Prospectus is July 24, 1997.
    
<PAGE>   3
                              AVAILABLE INFORMATION

         The Company is subject to the information requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and in
accordance therewith files reports, proxy and information statements and other
information with the Securities and Exchange Commission (the "Commission"). Such
reports, proxy and information statements and other information filed by the
Company can be inspected and copied at the public reference facilities
maintained by the Commission at Room 1024, 450 Fifth Street, NW, Washington,
D.C. 20549, and at the Commission's Regional Offices located at Citicorp Center,
500 West Madison Street, Suite 1400, Chicago, Illinois 60661 and 7 World Trade
Center, Suite 1300, New York, New York 10048. Copies of such material can be
obtained from the Public Reference Section of the Commission, 450 Fifth Street,
NW, Washington, D.C. 20549, at prescribed rates. The Commission maintains a
World Wide Web site that contains reports, proxy and information statements and
other information regarding registrants that file electronically with the
Commission. The address of the World Wide Web site is http://www.sec.gov. The
Common Stock is quoted on the Nasdaq National Market. Reports, proxy and
information statements and other information concerning the Company may be
inspected at the offices of the Nasdaq Stock Market at 1735 K Street, NW,
Washington, D.C. 2001. 

         The Company has filed with the Commission a registration statement on
Form S-3 (herein, together with all amendments and exhibits, referred to as the
"Registration Statement") under the Securities Act of 1933, as amended (the
"Securities Act"), with respect to the Securities. This Prospectus which
constitutes part of the Registration Statement does not contain all of the
information set forth in the Registration Statement, certain parts of which are
omitted in accordance with the rules and regulations of the Commission. For
further information with respect to the Company and the Securities offered
hereby, reference is made to the Registration Statement and the exhibits and the
financial statements, notes and schedules filed as a part thereof or
incorporated by reference therein, which may be inspected at the public
reference facilities of the Commission at the addresses set forth above or
through the Commission's World Wide Web site.

         Statements contained in this Prospectus as to the contents of any
contract or other document are not necessarily complete, and in each instance
are qualified in all respects by reference to the copy of such contract or
document filed as an exhibit to the Registration Statement.

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

         The following documents have been filed with the Commission and are
incorporated herein by reference:

         (a) The Company's Annual Report on Form 10-K for the fiscal year ended
March 31, 1997;

         (b) The Company's Registration Statement on Form 8-A filed with the
Commission on August 1, 1983, relating to the Company's Common Stock; and

         (c) The Company's Registration Statement on Form 8-A filed with the
Commission on August 5, 1988, relating to the Company's Preferred Share purchase
rights. 

         All documents filed by the Company pursuant to Sections 13(a), 13(c),
14 or 15(d) of the Exchange Act after the date of this Registration Statement of
which this Prospectus forms a part and prior to the termination of the offering
of the Securities offered hereby shall be deemed to be incorporated by reference
into this Prospectus and be a part hereof from the date of filing such
documents.

         Any statement contained in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded
for purposes of the Registration Statement or this Prospectus to the extent that
a statement contained herein, in a Prospectus Supplement or in any other
document subsequently filed with the Commission 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 the Registration Statement or this
Prospectus.

         The Company will furnish without charge to each person, including any
beneficial owner, to whom this Prospectus is delivered, on the written or oral
request of such person, a copy of any or all of the documents incorporated by
reference, other than exhibits to such documents (unless such exhibits are
specifically incorporated by reference into such documents). Requests should be
directed to Investor Relations, Quantum Corporation, 500 McCarthy Boulevard,
Milpitas, California 95035, telephone (408) 894-4000.

                                      -2-
<PAGE>   4
                                   THE COMPANY

        Quantum Corporation ("Quantum" or the "Company") designs, develops and
markets mass storage products, including high-performance, high quality hard
disk drives, recording heads and tape drives. The Company was incorporated as a
California corporation in February 1980, and reincorporated as a Delaware
corporation in April 1987. The Company's principal executive offices are located
at 500 McCarthy Boulevard, Milpitas, California 95035, and its telephone number
is (408) 894-4000.

                                  RISK FACTORS

         Prior to making an investment decision with respect to the Securities
offered hereby, prospective investors should carefully consider the specific
factors set forth under the caption "Risk Factors" in the applicable Prospectus
Supplement pertaining thereto, together with all of the other information
appearing herein or therein or incorporated by reference herein, in light of
their particular investment objectives and financial circumstances.


                                 USE OF PROCEEDS

         Unless otherwise indicated in an accompanying Prospectus Supplement,
the net proceeds to be received by the Company from the sale of the Securities
will be used for general corporate purposes, including capital expenditures and
to meet working capital needs. Pending such uses, the Company will invest the
net proceeds in interest-bearing securities.


                       RATIO OF EARNINGS TO FIXED CHARGES

        The following table sets forth the ratio of earnings to fixed charges
for the Company and its consolidated subsidiaries for the periods indicated. 
For purposes of calculating the ratio of earnings to fixed charges, earnings
consist of income before income taxes, plus fixed charges and fixed charges
consist of interest expense incurred and the estimated portion of rental
expense deemed by the Company to be representative of the interest factor of
rental payments under operating leases.

<TABLE>
<CAPTION>

                                                                                                   
                                                          FISCAL YEAR ENDED MARCH 31,             
                                          ---------------------------------------------------------
                                             1997        1996        1995        1994        1993  
                                          ---------------------------------------------------------
<S>                                        <C>          <C>        <C>           <C>         <C>    
Ratio of Earnings to Fixed Charges(1)....  4.5x          --        6.0x          1.2x        9.6x   

</TABLE>

- ----------
(1)  Earnings for fiscal 1996 were insufficient to cover fixed charges by 
     $141.3 million.

                                      -3-
<PAGE>   5
                         DESCRIPTION OF DEBT SECURITIES

        The Senior Debt Securities are to be issued under an Indenture (the
"Senior Indenture"), between the Company, as issuer, and LaSalle National Bank,
as Trustee (the "Trustee").  The Subordinated Debt Securities are to be issued
under a separate Indenture (the "Subordinated Indenture"), also between the
Company, as issuer, and LaSalle National Bank, as Trustee.  The Senior Indenture
and Subordinated Indenture are sometimes referred to collectively as the
"Indentures".  A copy of the form of each Indenture is filed as an exhibit to
the Registration Statement of which this Prospectus is a part. The Debt
Securities may be issued from time to time in one or more series.  The
particular terms of each series, or of Debt Securities forming a part of a
series, which are offered by a Prospectus Supplement will be described in such
Prospectus Supplement.

         The following summaries of certain provisions of the Indentures do not
purport to be complete and are subject, and are qualified in their entirety by
reference, to all the provisions of the Indentures, including the definitions
therein of certain terms, and, with respect to any particular Debt Securities,
to the description of the terms thereof included in the Prospectus Supplement
relating thereto.  Wherever particular Sections or defined terms of the
Indentures are referred to herein or in a Prospectus Supplement, such Sections
or defined terms are incorporated by reference herein or therein, as the case
may be.

GENERAL

         The Indentures 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 Indentures,
including as to maturity, principal and interest, as the Company may determine.
Unless otherwise specified in the applicable Prospectus Supplement, the Senior
Debt Securities when issued will be unsecured and unsubordinated obligations of
the Company and will rank on a parity with all other unsecured and
unsubordinated indebtedness of the Company.  The Subordinated Debt Securities
when issued will be subordinated in right of payment to the prior payment in
full of all Senior Indebtedness of the Company, including any outstanding Senior
Debt Securities, as described under "Subordination of Subordinated Debt
Securities" and in the applicable Prospectus Supplement.

         The applicable Prospectus Supplement will set forth whether the Debt
Securities offered shall be Senior Debt Securities or Subordinated Debt
Securities, 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 Debt Security of the series shall be payable,
if other than the Person in whose name that Debt Security (or one or more
predecessor Debt 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 of such Debt Securities will be payable; (5) the rate or rates
at which any of such Debt Securities will bear interest, if any, 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




                                      4
<PAGE>   6
   
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 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 Indentures described under
"Defeasance and Covenant Defeasance-Defeasance and Discharge" or "Defeasance and
Covenant Defeasance-Defeasance of Certain Covenants," or under both such
captions; (16) if applicable, the terms of any right to convert or exchange the
Debt Securities into Securities or other securities of the Company (provided,
however, that any such other securities issuable upon conversion or exchange of
Debt Securities will be subject to registration under the Securities Act or an
applicable exemption therefrom) or property; (17) 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 legends referred to under "Form,
Exchange and Transfer" or "Global Securities" and, if different from those
described under such captions, any circumstances under 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
names of Persons other than the Depositary for such Global Security or its
nominee; (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 Indentures
described under "Restrictive Covenants" applicable to any of such Debt
Securities; and (20) any other terms of such Debt Securities not inconsistent
with the provisions of the relevant Indenture. (Section 301)
    


                                      5
<PAGE>   7
         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 will be described in the
applicable Prospectus Supplement under "United States Taxation".  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 will be described in the
applicable Prospectus Supplement.

CONVERSION RIGHTS

         The terms on which Debt Securities of any series are convertible into
Common Stock or other securities or property will be set forth in the Prospectus
Supplement relating thereto.  Such terms shall include provisions as to whether
conversion is mandatory or at the option of the Holder and may include
provisions pursuant to which the number of shares of Common Stock or other
securities or property to be received by the Holders of Debt Securities upon
conversion would be calculated according to the market price of Common Stock or
other securities or property as of a time stated in the applicable Prospectus
Supplement. (Article Fourteen)

SUBORDINATION OF SUBORDINATED DEBT SECURITIES
         
         Unless otherwise indicated in the Prospectus Supplement, the following
provisions will apply to the Subordinated Debt Securities.

         The indebtedness evidenced by the Subordinated Debt Securities is
subordinated to the extent provided in the Subordinated Indenture to the prior
payment in full of all Senior Indebtedness (as defined), including any
outstanding Senior Debt Securities. Upon any distribution of assets of the
Company upon any dissolution, winding up, liquidation or reorganization, the
payment of the principal of, or premium, if any, and interest on the
Subordinated Debt Securities is to be subordinated to the extent provided in the
Subordinated Indenture in right of payment to the prior payment in full in cash
of all Senior Indebtedness. In the event of any acceleration of the Subordinated
Debt Securities because of an Event of Default, the holders of any Senior
Indebtedness then outstanding would be entitled to payment in full in cash of
all obligations in respect of such Senior Indebtedness before the Holders of the
Subordinated Debt Securities are entitled to receive any payment or distribution
in respect thereof. The Subordinated Indenture will require that the Company
promptly notify holders of Senior Indebtedness if payment of the Subordinated
Debt Securities is accelerated because of an Event of Default.

         The Company also may not make any payment upon or in respect of the
Subordinated Debt Securities if (i) a default in the payment of the principal
of, premium, if any, interest, rent or other obligations in respect of Senior
Indebtedness occurs and is continuing beyond any applicable period of grace or
(ii) any other default occurs and is continuing with respect to Designated
Senior Indebtedness (as defined) that permits holders of the Designated Senior
Indebtedness as to which such default relates to accelerate its maturity and the
Trustee receives a notice of such default (a "Payment Blockage Notice") from the
Company or other person permitted to give such notice under the Subordinated
Indenture. Payments on the Subordinated Debt Securities may and shall be resumed
(a) in case of a payment default, upon the date on which such default is cured
or waived or ceases to exist and (b) in case of a nonpayment default, the
earlier of the date on which such nonpayment default is cured or waived or
ceases to exist or 179 days after the date on which the applicable Payment
Blockage Notice is received. No new period of payment blockage may be commenced
pursuant to a Payment Blockage Notice unless and until (i) 365 days have elapsed
since the initial effectiveness of the immediately prior Payment Blockage Notice
and (ii) all scheduled payments of principal, premium, if any, and interest on
the Subordinated Debt Securities that have become due have been paid in full in
cash. No nonpayment default that existed or was continuing on the date of
delivery of any Payment Blockage Notice to the Trustee shall be, or be made, the
basis for a subsequent Payment Blockage Notice.

         By reason of the subordination provisions described above, in the event
of the Company's bankruptcy, dissolution or reorganization, holders of Senior
Indebtedness may receive more, ratably, and Holders of the Subordinated Debt
Securities may receive less, ratably, than the other creditors of the Company.
Such subordination will not prevent the occurrence of any Event of Default under
the Subordinated Indenture.

   
         The term "Senior Indebtedness" means the principal of, premium, if any,
interest (including all interest accruing subsequent to the commencement of any
bankruptcy or similar proceeding, whether or not a claim for post-petition
interest is allowable as a claim in any such proceeding) and rent payable on or
in connection with, and all fees, costs, expenses and other amounts accrued or
due on or in connection with, Indebtedness (as defined) of the Company, whether
outstanding on the date of the Subordinated Indenture or thereafter created,
incurred, assumed, guaranteed or in effect guaranteed by the Company (including
all deferrals, renewals, extensions or refundings of, or amendments,
modifications or supplements to, the foregoing), unless in the case of any
particular Indebtedness the instrument creating or evidencing the same or the
assumption or guarantee thereof expressly provides that such Indebtedness shall
not be senior in right of payment to the Subordinated Debt Securities or
expressly provides that such Indebtedness is "pari passu" or "junior" to the
Subordinated Debt Securities. Notwithstanding the foregoing, the term Senior
Indebtedness shall not include any Indebtedness of the Company to any subsidiary
of the Company, a majority of the voting stock of which is owned, directly or
indirectly, by the Company or the Company's 5% Convertible Subordinated
Notes due 2003.
    
                                       6
<PAGE>   8
         The term "Indebtedness" means, with respect to any Person (as defined
in the Subordinated Indenture), and without duplication, (a) all indebtedness,
obligations and other liabilities (contingent or otherwise) of such Person for
borrowed money (including obligations of the Company in respect of overdrafts,
foreign exchange contracts, currency exchange agreements, interest rate
protection agreements, and any loans or advances from banks, whether or not
evidenced by notes or similar instruments) or evidenced by bonds, debentures,
notes or similar instruments (whether or not the recourse of the lender is to
the whole of the assets of such Person or to only a portion thereof) (other
than any account payable or other accrued current liability or obligation
incurred in the ordinary course of business in connection with the obtaining of
materials or services), (b) all reimbursement obligations and other liabilities
(contingent or otherwise) of such Person with respect to letters of credit,
bank guarantees or bankers' acceptances, (c) all obligations and liabilities
(contingent or otherwise) in respect of leases of such Person required, in
conformity with generally accepted accounting principles, to be accounted for
as capitalized lease obligations on the balance sheet of such Person and all
obligations and other liabilities (contingent or otherwise) under any lease or
related document (including a purchase agreement) in connection with the lease
of real property which provides that such Person is contractually obligated to
purchase or cause a third party to purchase the leased property and thereby
guarantee a minimum residual value of leased property to the lessor and the
obligations of such Person under such lease or related document to purchase or
to cause a third party to purchase such leased property, (d) all obligations of
such Person (contingent or otherwise) with respect to an interest rate or other
swap, cap or collar agreement or other similar instrument or agreement or
foreign currency hedge, exchange, purchase or similar instrument or agreement,
(e) all direct or indirect guaranties or similar agreements by such Person in
respect of, and obligations or liabilities (contingent or otherwise) of such
Person to purchase or otherwise acquire or otherwise assure a creditor against
loss in respect of, indebtedness, obligations or liabilities of another Person
of the kind described in clauses (a) through (d), (f) any indebtedness or other
obligations described in clauses (a) through (d) secured by any mortgage,
pledge, lien or other encumbrance existing on property which is owned or held
by such Person, regardless of whether the indebtedness or other obligation
secured thereby shall have been assumed by such Person and (g) any and all
deferrals, renewals, extensions and refundings of, or amendments, modifications
or supplements to, any indebtedness, obligation or liability of the kind
described in clauses (a) through (f).

         The term "Designated Senior Indebtedness" means the Credit Agreement
(as defined in the Subordinated Indenture), the Sumitomo Credit Agreement (as
defined in the Subordinated Indenture) and any particular Senior Indebtedness
in which the instrument creating or evidencing the same or the assumption or
guarantee thereof (or related agreements or documents to which the Company is a
party) expressly provides that such Senior Indebtedness shall be "Designated
Senior Indebtedness" for purposes of the Subordinated Debenture (provided that
such instrument, agreement or other document may place limitations and
conditions on the right of such Senior Indebtedness to exercise the rights of
Designated Senior Indebtedness).

         The Subordinated Debt Securities will be obligations exclusively of
the Company. Since the operations of the Company are partially conducted
through its subsidiaries, the cash flow and the consequent ability to service
debt, including the Subordinated Debt Securities, of the Company will be
partially dependent upon the earnings of any such subsidiaries and the
distribution of those earnings, or upon loans or other payments of funds by
those subsidiaries, to the Company. Such subsidiaries are separate and distinct
legal entities and have no obligation, contingent or otherwise, to pay any
amounts due pursuant to the Subordinated Debt Securities or to make any funds
available therefor, whether by dividends, distributions, loans or other
payments. In addition, the payment of dividends or distributions and the making
of loans and advances to the Company by any such subsidiaries could be subject
to statutory or contractual restrictions, could be contingent upon the earnings
of those subsidiaries and are subject to various business considerations.

         Any right of the Company to receive any assets of any of its
subsidiaries upon their liquidation or reorganization (and the consequent right
of the Holders of the Subordinated Debt Securities to participate in those
assets) will be effectively subordinated to the claims of the subsidiary's
creditors (including trade creditors), except to the extent that the Company is
itself recognized as a creditor of such subsidiary, in which case the claims of
the Company would still be subordinate to any security interest in the assets
of such subsidiary and any indebtedness of such subsidiary senior to that held
by the Company.




                                      7
<PAGE>   9
         The Subordinated Indenture does not limit or prohibit the incurrence
of additional Senior Indebtedness, which may include indebtedness that is senior
to the Subordinated Debt Securities, but subordinate to other obligations of the
Company.  The Senior Debt Securities, when issued, will constitute Senior
Indebtedness.

         The Prospectus Supplement may further describe the provisions, if any,
applicable to the subordination of the Subordinated Debt Securities of a
particular series.

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 Indentures
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 Indentures 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 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
tenor) 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 tenor, 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



                                      8
<PAGE>   10
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 (a "Global Security").  Each Global Security will be registered in the
name of a depositary (the "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
Indentures.

         Notwithstanding any provision of the Indentures 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 Indentures, (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 Indentures.  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
Indentures.  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.

         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).




                                      9
<PAGE>   11
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.

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
Debt 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 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 for a period ending the earlier of 10 business days prior to the date
such money would escheat to the State or 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)

RESTRICTIVE COVENANTS

         Unless otherwise indicated in the applicable Prospectus Supplement,
the following provisions will apply to the Senior Debt Securities.

Limitations on Liens

         The Senior Indenture will provide that the Company will not issue,
incur, create, assume or guarantee, and will not permit any Restricted
Subsidiary (as defined) to issue, incur, create, assume or guarantee, any
debt for borrowed money secured by a mortgage, security interest, pledge, lien,
charge or other encumbrance ("mortgages") upon any Principal Property (as
defined) of the Company or any Restricted Subsidiary or upon any shares
of stock or indebtedness of any Restricted Subsidiary (whether such Principal
Property, shares or indebtedness are now existing or owned or hereafter created
or acquired) without in any such case effectively providing concurrently with
the issuance, incurrence, creation, assumption or guarantee of any such secured
debt, or the grant of a mortgage with respect to




                                      10
<PAGE>   12
any such indebtedness, that the Senior Debt Securities (together with, if the
Company shall so determine, any other indebtedness of or guarantee by the
Company or such Restricted Subsidiary ranking equally with the Senior Debt
Securities) shall be secured equally and ratably with (or, at the option of the
Company, prior to) such secured debt.  The foregoing restriction, however, will
not apply to: (a) mortgages on property existing at the time of acquisition
thereof by the Company or any Subsidiary, provided that such mortgages were in
existence prior to the contemplation of such acquisition; (b) mortgages on
property, shares of stock or indebtedness or other assets of any corporation
existing at the time such corporation becomes a Restricted Subsidiary, provided
that such mortgages are not incurred in anticipation of such corporation
becoming a Restricted Subsidiary; (c) mortgages on property, shares of stock or
indebtedness existing at the time of acquisition thereof by the Company or a
Restricted Subsidiary or mortgages thereon to secure the payment of all or any
part of the purchase price thereof, or mortgages on property, shares of stock
or indebtedness to secure any indebtedness for borrowed money incurred prior
to, at the time of, or within 270 days after, the latest of the acquisition
thereof, or, in the case of property, the completion of construction, the
completion of improvements, or the commencement of substantial commercial
operation of such property for the purpose of financing all or any part of the
purchase price thereof, such construction, or the making of such improvements;
(d) mortgages to secure indebtedness owing to the Company or to a Restricted
Subsidiary; (e) mortgages existing at the date of the Senior Indenture; (f)
mortgages 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 a
corporation as an entirety or substantially as an entirety to the Company or a
Restricted Subsidiary, provided that such mortgage was not incurred in
anticipation of such merger or consolidation or sale, lease or other
disposition; (g) mortgages in favor of the United States or any State,
territory or possession thereof (or the District of Columbia), or any
department, agency, instrumentality or political subdivision of the United
States or any State, territory or possession thereof (or the District of
Columbia), to secure partial, progress, advance or other payments pursuant to
any contract or statute or to secure any indebtedness incurred for the purpose
of financing all or any part of the purchase price or the cost of constructing
or improving the property subject to such mortgages; (h) mortgages created in
connection with the acquisition of assets or a project financed with, and
created to secure, a Nonrecourse Obligation (as defined); and (i)
extensions, renewals, refinancings or replacements of any mortgage referred to
in the foregoing clauses (a), (b), (c), (d), (e), (f), (g), and (h) provided,
however, that any mortgages permitted by any of the foregoing clauses (a), (b),
(c), (d), (e), (f), (g), and (h) shall not extend to or cover any property of
the Company or such Restricted Subsidiary, as the case may be, other than the
property, if any, specified in such clauses and improvements thereto, and
provided further that any refinancing or replacement of any mortgages permitted
by the foregoing clauses (g) and (h) shall be of the type referred to in such
clauses (g) or (h), as the case may be.

         Notwithstanding the restrictions described in the preceding paragraph,
the Company or any Restricted Subsidiary will be permitted to issue, incur,
create, assume or guarantee debt secured by a mortgage which would otherwise be
subject to such restrictions, without equally and ratably securing the Senior
Debt Securities, provided that after giving effect thereto, the aggregate
amount of all debt so secured by mortgages (not including mortgages permitted
under clauses (a) through (i) above) does not exceed 15% of the Consolidated
Net Tangible Assets (as defined below) of the Company as most recently
determined on or prior to such date.




                                      11
<PAGE>   13
Limitations on Sale and Lease-Back Transactions

         The Senior Indenture will provide that the Company will not, nor will
it permit any Restricted Subsidiary to, enter into any Sale and Lease-Back
Transaction (as defined) with respect to any Principal Property, other
than any such transaction involving a lease for a term of not more than three
years or any such transaction between the Company and a Restricted Subsidiary
or between Restricted Subsidiaries, unless (a) the Company or such Restricted
Subsidiary would be entitled to incur indebtedness secured by a mortgage on the
Principal Property involved in such transaction at least equal in amount to the
Attributable Debt (as defined) with respect to such Sale and Lease-Back
Transaction, without equally and ratably securing the Senior Debt Securities,
pursuant to the limitation on liens in the Senior Indenture; or (b) the Company
shall apply an amount equal to the greater of the net proceeds of such sale or
the Attributable Debt with respect to such Sale and Lease-Back Transaction
within 180 days of such sale to either (or a combination of) the retirement
(other than any mandatory retirement, mandatory prepayment or sinking fund
payment or by payment at maturity) of debt for borrowed money of the Company or
a Restricted Subsidiary that matures more than 12 months after the creation of
such indebtedness or the purchase, construction or development of other
comparable property.

Certain Definitions Applicable to Covenants

         The term "Attributable Debt" when used in connection with a Sale and
Lease-Back Transaction involving a Principal Property shall mean, at the time
of determination, the lesser of: (a) the fair value of such property (as
determined in good faith by the Board of Directors of the Company); or (b) the
present value of the total net amount of rent required to be paid under such
lease during the remaining term thereof (including any renewal term or period
for which such lease has been extended), discounted at the rate of interest set
forth or implicit in the terms of such lease or if not practicable to determine
such rate, the weighted average interest rate per annum (in the case of
Original Issue Discount Securities, the imputed interest rate) borne by the
Senior Debt Securities of each series outstanding pursuant to the Indenture
compounded semi-annually.  For purposes of the foregoing definition, rent shall
not include amounts required to be paid by the lessee, whether or not
designated as rent or additional rent, on account of or contingent upon
maintenance and repairs, insurance, taxes, assessments, water rates and similar
charges.  In the case of any lease which is terminable by the lessee upon the
payment of a penalty, such net amount shall be the lesser of the net amount
determined assuming termination upon the first date such lease may be
terminated (in which case the net amount shall also include the amount of the
penalty, but no rent shall be considered as required to be paid under such
lease subsequent to the first date upon which it may be so terminated) and the
net amount determined assuming no such termination.

         The term "Consolidated Net Tangible Assets" shall mean, as of any
particular time, total assets (excluding applicable reserves and other properly
deductible items) less: (a) total current liabilities, except for (1) notes and
loans payable; (2) current maturities of long-term debt and (3) current
maturities of obligations under capital leases; and (b) goodwill, patents and
trademarks, to the extent included in total assets; all as set forth on the
most recent consolidated balance sheet of the Company and its Restricted
Subsidiaries and computed in accordance with generally accepted accounting
principles.

         The term "Nonrecourse Obligation" means indebtedness or other
obligations substantially related to (i) the acquisition of assets not
previously owned by the Company or any Restricted Subsidiary or (ii) the
financing of a project involving the development or expansion of properties of
the Company or




                                      12
<PAGE>   14
any Restricted Subsidiary, as to which the obligee with respect to such
indebtedness or obligation has no recourse to the Company or any Restricted
Subsidiary or any assets of the Company or any Restricted Subsidiary other than
the assets which were acquired with the proceeds of such transaction or the
project financed with the proceeds of such transaction (and the proceeds
thereof).

         The term "Principal Property" shall mean the land, land improvements,
buildings and fixtures (to the extent they constitute real property interests,
including any leasehold interest therein) constituting the principal corporate
office, any manufacturing facility or any distribution center (whether now
owned or hereafter acquired) which: (a) is owned by the Company or any
Subsidiary; (b) is located within any of the present 50 states of the United
States (or the District of Columbia); (c) has not been determined in good faith
by the Board of Directors of the Company not to be materially important to the
total business conducted by the Company and its Subsidiaries taken as a whole;
and (d) has a market value on the date as of which the determination is being
made in excess of 2.0% of Consolidated Net Tangible Assets of the Company as
most recently determined on or prior to such date.

         The term "Restricted Subsidiary" shall mean any Subsidiary that owns
any Principal Property; provided, however, that the term "Restricted
Subsidiary" shall not include (a) any Subsidiary which is principally engaged
in financing receivables, or which is principally engaged in financing the
Company's operations outside the United States of America or (b) any
Subsidiary less than 80% of the 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 if the common stock of such
Subsidiary is traded on any national securities exchange or quoted on the
Nasdaq National Market or in the over-the-counter market.

         The term "Sale and Lease-Back Transaction" shall mean any arrangement
with any person providing for the leasing by the Company or any Restricted
Subsidiary of any Principal Property which property has been or is to be sold
or transferred by the Company or such Restricted Subsidiary to such person.

         The term "Subsidiary" shall mean any corporation of which at least a
majority of the outstanding voting stock having the power to elect a majority of
the board of directors of such corporation is at the time owned, directly or
indirectly, by the Company or by one or more other Subsidiaries, or by the
Company and one or more other Subsidiaries, and the accounts of which are
consolidated with those of the Company in the most recent consolidated
financial statements in accordance with generally accepted accounting
principles.  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.

CONSOLIDATION, MERGER AND SALE OF ASSETS

         The Indentures will provide that the Company may not consolidate with
or merge into any other Person (in a transaction in which the Company is not
the surviving corporation), or convey, transfer or lease its properties and
assets substantially as an entirety to, any Person (a "Successor Person"),
unless (i) the Successor Person (if any) is a corporation, limited liability
company, partnership, trust or other entity organized and existing under the
laws of any domestic jurisdiction and assumes the Company's obligations on the
Debt Securities and under the Indentures, (ii) immediately after giving effect
to the transaction, and treating any indebtedness which becomes an obligation
of the Company or any Subsidiary as a result of the transaction as having been
incurred by it at the time of 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, 




                                      13
<PAGE>   15
and (iii) certain other conditions are met. (Section 801)

EVENTS OF DEFAULT

         Each of the following will constitute an Event of Default under the
Indentures 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 the Company in the Indentures (other than a covenant
included in the Indentures solely for the benefit of a series other than that
series), continued for 60 days after written notice has been given by the
Trustee, or the Holders of at least 25% in aggregate principal amount of the
Outstanding Securities of that series, as provided in the Indentures; (e)
certain events in bankruptcy, insolvency or reorganization with respect to the
Company; and (f) any other Event of Default specified in the applicable
Prospectus Supplement. (Section 501)

         The Indentures will provide that, if an Event of Default (other than an
Event of Default described in clause (e) 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 Securities of that series by notice as provided in the
Indentures may declare the 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 principal amount of which is not then determinable, such
portion of the principal amount of such Debt Security, or such other amount in
lieu of such 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 (e) above with respect to the Debt Securities of any series at the
time Outstanding shall occur, the 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 based on acceleration,
the Holders of a majority in aggregate principal amount of the Outstanding
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 Indentures. (Section 502) For information as to waiver of
defaults, see "Modification and Waiver".

         Subject to the provisions of the Indentures relating to the duties of
the Trustee in case an Event of Default shall occur and be continuing, the
Trustee will be under no obligation to exercise any of its rights or powers
under the Indentures 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
Holders of a majority in aggregate principal amount of the Outstanding
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)



                                      14
<PAGE>   16
         No Holder of a Debt Security of any series will have any right to
institute any proceeding with respect to the Indentures, 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 Securities of
that series have made a 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 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 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 Indentures will include a covenant requiring the Company 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
Indentures and, if so, specifying all such known defaults. (Section 1004)

MODIFICATION AND WAIVER

   
         Modifications and amendments of the Indentures may be made by the
Company and the Trustee with the consent of the Holders of a majority in
aggregate principal amount of the Outstanding 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 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) in the
case of Subordinated Debt Securities, modify the subordination provisions in a
manner adverse to the Holders of the Subordinated Debt Securities, (g) in the
case of Debt Securities that are convertible or exchangeable into Securities or
other securities of the Company, adversely affect the right of Holders to
convert or exchange any of the Debt Securities other than as provided in or
pursuant to the Indentures, (h) reduce the percentage in principal amount of
Outstanding Securities of any series, the consent of whose Holders is required
for modification or amendment of the Indentures, (i) reduce the percentage in
principal amount of Outstanding Securities of any series necessary for waiver of
compliance with certain provisions of the Indentures or for waiver of certain
defaults or (j) modify such provisions with respect to modification and waiver.
(Section 902) 
    

         The Indentures will provide that the Holders of a majority in
aggregate principal amount of the Outstanding Securities of any series may
waive, on behalf of the Holders of all Debt Securities of such series,
compliance by the Company with certain restrictive provisions of the
Indentures. (Sections 1010 and 1008 of the Senior Indenture and the
Subordinated Indenture, respectively) The Holders of a majority in principal
amount of the Outstanding Securities of any series may waive any past default
under the Indentures, except a default in the payment of principal, premium or
interest and certain covenants and provisions of the Indentures which cannot be
amended without the consent of the Holder of each Outstanding Security of such
series affected. (Section 513)




                                      15
<PAGE>   17
         The Indentures will provide that in determining whether the Holders of
the requisite principal amount of the Outstanding Securities have given or
taken any direction, notice, consent, waiver or other action under the
Indentures 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 1302, will
not be deemed to be Outstanding. (Section 101)

         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 Securities of any series entitled to give or take any direction,
notice, consent, waiver or other action under the Indentures, in the manner and
subject to the limitations provided in the Indentures.  In certain limited
circumstances, the Trustee will be entitled to set a record date for action by
Holders.  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 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 shorter
period as may be specified by the Company (or the Trustee, if it set the record
date), and may be shortened or lengthened (but not beyond 180 days) 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 1302, relating to defeasance and discharge of
indebtedness, or Section 1303, relating to defeasance of certain restrictive
covenants in the Indentures, applied to the Debt Securities of any series, or
to any specified part of a series. (Section 1301)

         Defeasance and Discharge.  The Indentures will provide that, upon the
Company's exercise of its option (if any) to have Section 1302 applied to any
Subordinated Debt Securities, the provisions of Article Fifteen of the
Subordinated Indenture relating to subordination will cease to be effective and,
with respect to any Debt Securities, the Company will be discharged from all its
obligations with respect thereto (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, to hold moneys for payment in
trust and, if applicable, to effect conversion of Debt Securities) 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 Indentures 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




                                      16
<PAGE>   18
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
1302 and 1304)

        Defeasance of Certain Covenants.  The Indentures will provide that,
upon the Company's exercise of its option (if any) to have Section 1303 applied
to any Debt Securities, the Company may omit to comply with certain restrictive
covenants, including those described under "Restrictive Covenants" 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) 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, in each case with respect to such Debt
Securities, and, in the case of the Subordinated Indenture, the provisions of
Article Fifteen relating to subordination will cease to be effective with
respect to any Subordinated 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 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 Indentures and
such Debt Securities.  The Company will also be required, among other things, to
deliver to the Trustee an Opinion of Counsel 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 upon any
acceleration resulting from such Event of Default.  In such case, the Company
would remain liable for such payments. (Sections 1303 and 1304)

        The Company may, at its option, satisfy and discharge each of the
Indentures (except for certain obligations of the Company and the Trustee,
including, among others the obligations to apply money held in trust) when (i)
either (a) all Debt Securities under such Indenture previously authenticated and
delivered (other than (1) Debt Securities that were destroyed, lost or stolen
and that have been replaced or paid and (2) Debt Securities for the payment of
which money has been deposited in trust or segregated and held in trust by the
Company and thereafter repaid to the Company or discharged from such trust) have
been delivered to the Trustee for cancellation or discharge from such trust)
have been delivered to the Trustee for cancellation or (b) all such Debt
Securities under such Indenture not theretofore delivered to the Trustee for
cancellation (1) have become due and payable, (2) will become due and payable at
their Stated Maturity within one year, or (3) 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 has deposited or caused to be deposited with the
Trustee as trust funds in trust for such purpose an amount sufficient to pay and
discharge the entire indebtedness on such Debt Securities under such Indenture
not previously delivered to the Trustee for cancellation, for principal and any
premium and interest to the date of such deposit (in the case of Debt Securities
under such Indenture which have become due and payable) or to the Stated
Maturity or redemption date as the case may be, (ii) the Company has paid or
caused to be paid all other sums payable under such Indenture by the Company,
and (iii) the Company has delivered to the Trustee an Officers' Certificate and
an Opinion of Counsel, each to the effect that all conditions precedent relating
to the satisfaction and discharge of such Indenture have been satisfied. 

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.
(Sections 101 and 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)






                                      17
<PAGE>   19
GOVERNING LAW 

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

REGARDING THE TRUSTEE

        The Indentures contain certain limitations on the right of the Trustee,
should it become a creditor of the Company, to obtain payment of claims in
certain cases or to realize for its own account on certain property received in
respect of any such claim as security or otherwise. (Section 613) The Trustee
is permitted to engage in certain other transactions; however, if it acquires
any conflicting interest and there is a default under the Securities of any
series for which the Trustee serves as trustee, the Trustee must eliminate such
conflict or resign. (Section 608)


                                      18
<PAGE>   20
                          DESCRIPTION OF CAPITAL STOCK

        The authorized capital stock of the Company consists of 500,000,000
shares of Common Stock, $.01 par value, and 4,000,000 shares of Preferred Stock,
$.01 par value.

COMMON STOCK

        As of May 1, 1997, there were 65,509,049 shares of Common Stock
outstanding held of record by approximately 1890 stockholders. (Such
outstanding share amounts have not been restated to reflect the 2-for-1 split
of the Company's Common Stock that was effected during June 1997 in the form of
a stock dividend of one share for each outstanding share.) The holders of
Common Stock are entitled to one vote per share on all matters to be voted on
by the stockholders, other than the election of directors. Subject to
preferences that may be applicable to outstanding shares of Preferred Stock, if
any, the holders of Common Stock are entitled to receive ratably such dividends
as may be declared from time to time by the Board of Directors out of funds
legally available therefor. In the event of the liquidation, dissolution or
winding up of the Company, the holders of Common Stock are entitled to share
ratably in all assets remaining after payment of liabilities, subject to prior
liquidation rights of Preferred Stock, if any, then outstanding. The Common
Stock has no preemptive, conversion rights or other subscription rights. There
are no redemption or sinking funds provisions applicable to the Common Stock.
All outstanding shares of Common Stock are fully paid and non-assessable.

PREFERRED STOCK

        The Company's Certificate of Incorporation authorizes 4,000,000 shares
of Preferred Stock. The Board of Directors has the authority to issue the
Preferred Stock in one or more series and to fix the rights, preferences,
privileges and restrictions thereof, including dividend rights, dividend rates,
conversion rights, voting rights, terms of redemption, redemption prices,
liquidation preferences and the number of shares constituting any series or the
designation of such series, without further vote or action by the stockholders.
The issuance of Preferred Stock may have the effect of delaying, deferring or
preventing a change in control of the Company without further action by the
stockholders and may adversely affect the voting and other rights of the
holders of Common Stock, including the loss of voting control to others. 

        In February 1997, the Company issued 90,000 shares of Redeemable
Convertible Participating Series B Preferred Stock ("Series B Preferred") in
conjunction with the acquisition of a 19% minority ownership interest in
Quantum Peripherals Colorado, Inc., a consolidated subsidiary involved
in the development and manufacture of recording heads. The shares of Series B
Preferred are mandatorily redeemable for $111.11 per share, plus declared but
unpaid dividends, in the event of a voluntary or involuntary liquidation,
dissolution, change in control, or sale of all or substantially all of the
assets of the Company. Holders of the shares of Series B Preferred have a
liquidation preference senior to that of holders of the Company's Common Stock.
Each share of Series B Preferred will convert into two shares of the Company's
Common Stock upon the earlier of (i) the Company's Common Stock closing at
$35.00 per share (as adjusted upon the occurrence of certain specified events), 
(ii) April 1, 1999, or (iii) written notice to the Company of the holders of a
majority of outstanding shares of Series B Preferred. The holders of shares of 
Series B Preferred ratably participate on an as-if-converted basis with holders
of Common Stock, in declared cash and in-kind dividends.

STOCKHOLDER RIGHTS PLAN

        On July 21, 1988, the Board of Directors of the Company declared a
dividend of one Preferred Share purchase right (a "Right") for each outstanding
share of Common Stock to the holders of record on August 19, 1988 and
authorized and directed the issuance of one Right with respect to each share of
Common Stock that shall become outstanding prior to the occurrence of certain
terminating events. Currently the Rights trade with the shares of Common Stock.
Upon the occurrence of certain events generally associated with an unsolicited
takeover attempt of the Company or certain transactions involving a change of
control, the Rights (except for Rights held by an Acquiring Person (as  defined
in the Preferred Shares Rights Agreement) (the "Rights Agreement")) will become
exercisable and will cease to automatically trade with the Common Stock. Upon
the acquisition of 20% or more of the Company's outstanding Common Stock or the
commencement of, or announcement of an intention to make a tender offer or
exchange offer, the consummation of which would result in the beneficial
ownership by a person or group of 30% or more of the Company's outstanding
Common Stock, each Right (except for Rights held by an Acquiring Person) will
be converted into a right to purchase at the then-current exercise price of the
Right that number of shares of Preferred Shares (as defined in the Rights
Agreement) having a market value of two times the exercise price of the Right
or, in the event of merger of the Company into an Acquiring Person, securities
of the Acquiring Person having a market value of two times the exercise price
of the Right.

        The Rights have certain anti-takeover effects. The Rights will cause
substantial dilution to a person or group that attempts to acquire the Company
in a manner which causes the Rights to become exercisable. The Company believes,
however, that the Rights should neither affect any prospective offeror willing
to negotiate

                                       19
<PAGE>   21
with the Board of Directors of the Company nor interfere with any merger of
other business combination approved by the Board of Directors of the Company.
The Rights may be redeemed pursuant to the terms of the Rights Agreement. The
terms of the Rights may be amended by the Board of Directors of the Company
without the consent of the holders of the Rights.

CHANGE OF CONTROL PROVISIONS

        Certain provisions of the Company's Certificate of Incorporation and
Bylaws may have the effect of preventing, discouraging or delaying any change in
the control of the Company and may maintain the incumbency of the Board of
Directors and management. The authorization of undesignated Preferred Stock
makes it possible for the Board of Directors to issue Preferred Stock with
voting or other rights or preferences that could impede the success of any
attempt to change control of the Company.

        The Company is subject to the provisions of Section 203 of the Delaware
General Corporation Law (the "Antitakeover Law") regulating corporate takeovers.
The Antitakeover Law prevents certain Delaware corporations, including those
whose securities are listed on the Nasdaq National Market, from engaging, under
certain circumstances, in a "business combination" (which includes a merger or
sale of more than 10% of the corporation's assets) with any "interested
stockholder" (a stockholder who acquired 15% or more of the corporation's
outstanding voting stock without the prior approval of the corporation's Board
of Directors) for three years following the date that such stockholder became an
"interested stockholder." A Delaware corporation may "opt out" of the
Antitakeover Law with an express provision in its original certificate of
incorporation or an express provision in its certificate of incorporation or
bylaws resulting from a stockholders' amendment approved by at least a majority
of the outstanding voting shares. The Company has not "opted out" of the
provisions of the Antitakeover Law.

TRANSFER AGENT AND REGISTRAR

        The transfer agent and registrar for the Common Stock is Harris Trust
Company of California.

                                       20
<PAGE>   22
                              PLAN OF DISTRIBUTION

         The Company may sell the Securities separately or together, (i) to one
or more underwriters or dealers for public offering and sale by them and (ii) to
investors directly or through agents. The distribution of the Securities may be
effected from time to time in one or more transactions at a fixed price or
prices (which may be changed from time to time), at market prices prevailing at
the time of sale, at prices related to such prevailing market prices or at
negotiated prices. Each Prospectus Supplement will describe the method of
distribution of the Securities offered thereby.

         In connection with the sale of the Securities, underwriters, dealers or
agents may receive compensation from the Company or from purchasers of the
Securities for whom they may act as agents, in the form of discounts,
concessions or commissions. The underwriters, dealers or agents which
participate in the distribution of the Securities may be deemed to be
underwriters under the Securities Act and any discounts or commissions received
by them and any profit on the resale of the Securities received by them may be
deemed to be underwriting discounts and commissions thereunder. Any such
underwriter, dealer or agent will be identified and any such compensation
received from the Company will be described in the Prospectus Supplement. Any
initial public offering price and any discounts or concessions allowed or
reallowed or paid to dealers may be changed from time to time.

         Under agreements that may be entered into with the Company,
underwriters, dealers and agents may be entitled to indemnification by the
Company against certain civil liabilities, including liabilities under the
Securities Act, or to contribution with respect to payments which the
underwriters, dealers or agents may be required to make in respect thereof.

         The Company may grant underwriters who participate in the distribution
of Securities an option to purchase additional Securities to cover
over-allotments, if any.

         Certain of the underwriters or agents and their associates may be
customers of, engage in transactions with or perform services for the Company in
the ordinary course of business.


                                 LEGAL OPINIONS

         The validity of the Securities is being passed upon for the Company by
Wilson Sonsini Goodrich & Rosati, Professional Corporation, Palo Alto,
California.


                                     EXPERTS

         The consolidated financial statements of Quantum Corporation appearing
in Quantum Corporation's Annual Report (Form 10-K) for the year ended March 31,
1997, have been audited by Ernst & Young LLP, independent auditors, as set forth
in their report thereon included therein and incorporated herein by reference.
Such consolidated financial statements are incorporated herein by reference in
reliance upon such report given upon the authority of such firm as experts in
accounting and auditing.

                                       21
<PAGE>   23
                                     PART II

                   INFORMATION NOT REQUIRED IN THE PROSPECTUS

ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

         The following table sets forth the expenses, other than any
underwriting discount and commissions, in connection with the issuance and
distribution of the Securities being registered. All of the amounts are
estimates, except the registration fee.

   
<TABLE>
<CAPTION>

                                                                        AMOUNT TO BE PAID
                                                                        -----------------
<S>                                                                     <C>
Registration fee..................................................      $    136,364
Trustee's fees and expenses.......................................            25,000
Accounting fees and expenses......................................           150,000   
Printing and engraving............................................           100,000 
Transfer agent and registrar fees and expenses....................            15,000  
Blue Sky and legal investment fees and expenses...................            15,000
Rating agencies' fees.............................................           100,000
Legal fees and expenses of the registrant.........................           200,000   
Miscellaneous.....................................................            25,000           
                                                                         -------------
         Total....................................................       $   766,364         
                                                                         =============
</TABLE>
    

ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

         Section 145 of the Delaware General Corporation Law ("Delaware Law")
authorizes a court to award or a corporation's Board of Directors to grant
indemnification to directors and officers in terms sufficiently broad to permit
such indemnification under certain circumstances for liabilities (including
reimbursement for expenses incurred) arising under the Securities Act of 1933,
as amended. The registrant's Certificate of Incorporation and Bylaws
provide for indemnification of its directors, officers, employees and other
agents to the maximum extent permitted by Delaware Law. The registrant has
entered into indemnification agreements with its directors and certain of its
officers. The indemnification agreements provide the registrant's directors and
elected officers with further indemnification to the maximum extent permitted by
Delaware Law.

   
      The form(s) of proposed Underwriting Agreement(s) to be filed as (an)
exhibit(s) hereto or incorporated by reference herein may include provisions
regarding indemnification of officers and directors of the registrant by the
several Underwriters. 
    

ITEM 16.  EXHIBITS.

   
<TABLE>
<CAPTION>

    EXHIBIT NUMBER                           DESCRIPTION OF EXHIBIT
    --------------                           ----------------------
<S>                      <C>
         1.1            Proposed form(s) of Underwriting Agreement(s)*.
         4.1            Form of Senior Indenture.
         4.2            Form of Subordinated Indenture.
         4.3            Form of Senior Debt Security (included in Exhibit 4.1).
         4.4            Form of Subordinated Debt Security (included in 
                        Exhibit 4.2).
         4.5            Preferred Shares Rights Agreement, dated as of August
                        3, 1988, between the registrant and Bank of America,
                        N.T. & S.A., Rights Agent, including the Certificate of
                        Designation, the form of Rights Certificate and the 
                        Summary of Rights attached thereto as Exhibits A, B and
                        C, respectively+.
         5.1            Opinion of Wilson Sonsini Goodrich & Rosati, 
                        Professional Corporation.
        12.1            Computation of Ratio of Earnings to Fixed Charges**.
        23.1            Consent of Ernst & Young LLP, Independent Auditors.
        23.2            Consent of Wilson Sonsini Goodrich & Rosati,
                        Professional Corporation (included in Exhibit 5.1). 
        24.1            Power of Attorney of certain directors and officers of
                        the registrant (contained on Page II-4)**.
        25.1            Form T-1 Statement of Eligibility and Qualification of
                        Trustee for Senior Indenture under the Trust 
                        Indenture Act of 1939.
        25.2            Form T-1 Statement of Eligibility and Qualification of
                        Trustee for Subordinated Indenture under the Trust
                        Indenture Act of 1939.
- ---------------------------
</TABLE>
 *   To be filed by amendment or by a report on Form 8-K pursuant to Section
     601 of Regulation S-K.

**   Previously filed.
    

 +   Incorporated by reference to the registrant's Registration Statement on
     Form 8-A filed with the Securities and Exchange Commission on August 5,
     1988.

                                      II-1
<PAGE>   24
ITEM 17.  UNDERTAKINGS

     1.        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 (the "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 end 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 a 20%
               change in the maximum aggregate offering price set forth in the
               "Calculation of Registration Fee" table in the effective
               registration statement; and

                    (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 the undertakings set forth in clauses (i) and (ii)
     above shall not apply if the information required to be included in a
     post-effective amendment by these clauses is contained in periodic reports
     filed by the registrant pursuant to Section 13 or Section 15(d) of the
     Securities Exchange Act of 1934 (the "Exchange Act") that are incorporated
     by reference in this registration statement.

               (2) That, for the purpose of determining any liability under the
     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.

     2. The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Act, each filing of the registrant's annual
report pursuant to Section 13(a) or 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.

     3. Insofar as indemnification for liabilities arising under the Act may be
permitted to directors, officers and controlling persons of the registrant
pursuant to the provisions described under Item 15 above, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the 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 Act and will be governed by the final adjudication of
such issue.

     4.        The undersigned registrant hereby undertakes that:

               (a) For purposes of determining any liability under the 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 Act shall be deemed to be part of this registration
     statement as of the time it was declared effective.


                                      II-2
<PAGE>   25
               (b) For the purpose of determining any liability under the 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>   26
   
                                   SIGNATURES


     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing this Form S-3 and has duly caused this Amendment to
this Registration Statement to be signed on its behalf by the undersigned, 
thereunto duly authorized, in the City of Milpitas, State of California, on 
July 24, 1997.
    
                                    QUANTUM CORPORATION

                                    By:  /s/ MICHAEL A. BROWN
                                        --------------------------------------
                                         Michael A. Brown
                                         President and Chief Executive Officer

   
        Pursuant to the requirements of the Securities Act of 1933, as amended,
on July 24, 1997, this Amendment to this Registration Statement has been signed
by the following persons in the capacities indicated:

<TABLE>
<CAPTION>

      SIGNATURE TITLE                                                                TITLE
      ----------------                                                               -----
<S>                                                         <C>
/s/ MICHAEL A. BROWN                                              President, Chief Executive Officer (Principal 
- -----------------------------------                               Executive Officer) and Director
Michael A. Brown

/s/ RICHARD L. CLEMMER                                            Executive Vice President, Finance and Chief Financial Officer
- -----------------------------------                               (Principal Financial and Accounting Officer)
Richard L. Clemmer

          *                                                                         Chairman
- -----------------------------------
Stephen M. Berkley 

          *                                                                         Director
- -----------------------------------
David A. Brown 
         *                                                                          Director
- ----------------------------------
Edward M. Esber, Jr.                                                             
         *                                                                          Director
- -----------------------------------
Steven C. Wheelwright
</TABLE>







* By: /s/ Michael A. Brown
     -------------------------------
     Attorney-in-fact


    


                                      II-4
<PAGE>   27
                                INDEX TO EXHIBITS
   
<TABLE>
<CAPTION>

    EXHIBIT NUMBER                           DESCRIPTION OF EXHIBIT
    --------------                           ----------------------
<S>                     <C>
         1.1            Proposed Form(s) of Underwriting Agreements*.
         4.1            Form of Senior Indenture.
         4.2            Form of Subordinated Indenture.
         4.3            Form of Senior Debt Security (included in Exhibit 4.1).
         4.4            Form of Subordinated Debt Security (included in 
                        Exhibit 4.2).
         4.5            Preferred Shares Rights Agreement, dated as of August
                        3, 1988, between the registrant and Bank of America,
                        N.T. & S.A., Rights Agent, including the Certificate of
                        Designation, the form of Rights Certificate and the 
                        Summary of Rights attached thereto as Exhibits A, B and
                        C, respectively+.
         5.1            Opinion of Wilson Sonsini Goodrich & Rosati, 
                        Professional Corporation.
        12.1            Computation of Ratio of Earnings to Fixed Charges**.
        23.1            Consent of Ernst & Young LLP, Independent Auditors.
        23.2            Consent of Wilson Sonsini Goodrich & Rosati,
                        Professional Corporation (included in Exhibit 5.1). 
        24.1            Power of Attorney of certain directors and officers of
                        the registrant (contained on Page II-4)**.
        25.1            Form T-1 Statement of Eligibility and Qualification of
                        Trustee for Senior Indenture under the Trust 
                        Indenture Act of 1939.
        25.2            Form T-1 Statement of Eligibility and Qualification of
                        Trustee for Subordinated Indenture under the Trust
                        Indenture Act of 1939.
- ---------------------------
</TABLE>
*    To be filed by amendment or by a report on Form 8-K pursuant to Section 601
     of Regulation S-K.
**   Previously filed.
    
+    Incorporated by reference to the registrant's Registration Statement on
     Form 8-A filed with the Securities and Exchange Commission on August 5,
     1988.


                                      II-5


<PAGE>   1
                                                                     EXHIBIT 4.1

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

                               Quantum Corporation

                                       TO

                             LaSalle National Bank,

                                   as Trustee

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


                                    Indenture

                       Dated as of _________________, 1997

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




                             Senior Debt Securities

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


<PAGE>   2

                                TABLE OF CONTENTS

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

ARTICLE ONE  DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION.............................1
    SECTION 101.    Definitions..................................................................1

          Act ...................................................................................1
          Affiliate .............................................................................2
          control ...............................................................................2
          Attributable Debt......................................................................2
          Authenticating Agent...................................................................2
          Board of Directors.....................................................................2
          Board Resolution.......................................................................2
          Business Day...........................................................................3
          Commission.............................................................................3
          Common Stock...........................................................................3
          Company ...............................................................................3
          Company Request........................................................................3
          Company Order..........................................................................3
          Consolidated Net Tangible Assets.......................................................3
          Corporate Trust Office.................................................................3
          corporation............................................................................3
          Covenant Defeasance....................................................................3
          Defaulted Interest.....................................................................3
          Defeasance.............................................................................4
          Depositary.............................................................................4
          Event of Default.......................................................................4
          Exchange Act...........................................................................4
          Expiration Date........................................................................4
          Global Security........................................................................4
          Holder.................................................................................4
          Indenture .............................................................................4
          interest...............................................................................4
          Interest Payment Date..................................................................5
          Investment Company Act.................................................................5
          Maturity...............................................................................5
          Nonrecourse Obligation.................................................................5
          Notice of Default......................................................................5
          Officers' Certificate..................................................................5
          Opinion of Counsel.....................................................................5
          Original Issue Discount Security.......................................................5
          Outstanding............................................................................5
</TABLE>
    


                                       -i-

<PAGE>   3

                                TABLE OF CONTENTS

                                   (CONTINUED)

   
<TABLE>
<CAPTION>
                                                                                              PAGE
                                                                                              ----
<S>       <C>                                                                                <C>
          Paying Agent...........................................................................6
          Person.................................................................................6
          Place of Payment.......................................................................6
          Predecessor Security...................................................................6
          Principal Property.....................................................................7
          Record Date............................................................................7
          Redemption Date........................................................................7
          Redemption Price.......................................................................7
          Regular Record Date....................................................................7
          Restricted Subsidiary..................................................................7
          Sale and Leaseback Transaction.........................................................7
          Securities.............................................................................7
          Securities Act.........................................................................8
          Security Register......................................................................8
          Security Registrar.....................................................................8
          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................................................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
    SECTION 114.    Indenture and Securities Solely Corporate Obligations.......................13

ARTICLE TWO  SECURITY FORMS.....................................................................14
    SECTION 201.    Forms Generally.............................................................14
    SECTION 202.    Form of Face of Security....................................................14
    SECTION 203.    Form of Reverse of Security.................................................16
    SECTION 204.    Form of Legend for Global Securities........................................20
</TABLE>
    



                                      -ii-

<PAGE>   4

                                TABLE OF CONTENTS

                                   (CONTINUED)

   
<TABLE>
<CAPTION>
                                                                                              PAGE
                                                                                              ----

<S>                 <C>                                                                       <C>
    SECTION 205.    Form of Trustee's Certificate of Authentication.............................21
    SECTION 206.    Form of Conversion Notice...................................................21

ARTICLE THREE  THE SECURITIES...................................................................22
    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............................28
    SECTION 307.    Payment of Interest; Interest Rights Preserved..............................29
    SECTION 308.    Persons Deemed Owners.......................................................30
    SECTION 309.    Cancellation................................................................31
    SECTION 310.    Computation of Interest.....................................................31

ARTICLE FOUR  SATISFACTION AND DISCHARGE........................................................31
    SECTION 401.    Satisfaction and Discharge of Indenture.....................................31
    SECTION 402.    Application of Trust Money..................................................32

ARTICLE FIVE  REMEDIES..........................................................................33
    SECTION 501.    Events of Default...........................................................33
    SECTION 502.    Acceleration of Maturity; Rescission and Annulment..........................34
    SECTION 503.    Collection of Indebtedness and Suits for Enforcement by Trustee.............35
    SECTION 504.    Trustee May File Proofs of Claim............................................35
    SECTION 505.    Trustee May Enforce Claims Without Possession of Securities.................36
    SECTION 506.    Application of Money Collected..............................................36
    SECTION 507.    Limitation on Suits.........................................................36
    SECTION 508.    Unconditional Right of Holders to Receive Principal, Premium and Interest
                    and to Convert..............................................................37
    SECTION 509.    Restoration of Rights and Remedies..........................................37
    SECTION 510.    Rights and Remedies Cumulative..............................................37
    SECTION 511.    Delay or Omission Not Waiver................................................38
    SECTION 512.    Control by Holders..........................................................38
    SECTION 513.    Waiver of Past Defaults.....................................................38
    SECTION 514.    Undertaking for Costs.......................................................39
    SECTION 515.    Waiver of Usury, Stay or Extension Laws.....................................39

ARTICLE SIX  THE TRUSTEE........................................................................39
    SECTION 601.    Certain Duties and Responsibilities.........................................39
    SECTION 602.    Notice of Defaults..........................................................39
</TABLE>
    



                                      -iii-

<PAGE>   5

                                TABLE OF CONTENTS

                                   (CONTINUED)
   
<TABLE>
<CAPTION>
                                                                                              PAGE
                                                                                              ----
<S>                 <C>                                                                       <C>
    SECTION 603.    Certain Rights of Trustee...................................................40
    SECTION 604.    Not Responsible for Recitals or Issuance of Securities......................40
    SECTION 605.    May Hold Securities and Act as Trustee Under Other Indentures...............41
    SECTION 606.    Money Held in Trust.........................................................41
    SECTION 607.    Compensation and Reimbursement..............................................41
    SECTION 608.    Conflicting Interests.......................................................42
    SECTION 609.    Corporate Trustee Required; Eligibility.....................................42
    SECTION 610.    Resignation and Removal; Appointment of Successor...........................42
    SECTION 611.    Acceptance of Appointment by Successor......................................43
    SECTION 612.    Merger, Conversion, Consolidation or Succession to Business.................44
    SECTION 613.    Preferential Collection of Claims Against Company...........................45
    SECTION 614.    Appointment of Authenticating Agent.........................................45

ARTICLE SEVEN   HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY...............................46
    SECTION 701.    Company to Furnish Trustee Names and Addresses of Holders...................46
    SECTION 702.    Preservation of Information; Communications to Holders......................47
    SECTION 703.    Reports by Trustee..........................................................47
    SECTION 704.    Reports by Company..........................................................47

ARTICLE EIGHT  CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE.............................47
    SECTION 801.    Company May Consolidate, Etc., Only on Certain Terms........................48
    SECTION 802.    Successor Substituted.......................................................48

ARTICLE NINE  SUPPLEMENTAL INDENTURES...........................................................49
    SECTION 901.    Supplemental Indentures Without Consent of Holders..........................49
    SECTION 902.    Supplemental Indentures With Consent of Holders.............................51
    SECTION 903.    Execution of Supplemental Indentures........................................51
    SECTION 904.    Effect of Supplemental Indentures...........................................51
    SECTION 905.    Conformity with Trust Indenture Act.........................................51
    SECTION 906.    Reference in Securities to Supplemental Indentures..........................51

ARTICLE TEN  COVENANTS..........................................................................52
    SECTION 1001.   Payment of Principal, Premium and Interest..................................52
    SECTION 1002.   Maintenance of Office or Agency.............................................52
    SECTION 1003.   Money for Securities Payments to Be Held in Trust...........................52
    SECTION 1004.   Statement by Officers as to Default.........................................53
    SECTION 1005.   Existence...................................................................54
    SECTION 1006.   Maintenance of Properties...................................................54
    SECTION 1007.   Payment of Taxes and Other Claims...........................................54
    SECTION 1008.   Limitation on Liens.........................................................54
</TABLE>
    


                                      -iv-

<PAGE>   6

                                TABLE OF CONTENTS

                                   (CONTINUED)

   
<TABLE>
<CAPTION>
                                                                                              PAGE
                                                                                              ----
<S>                   <C>                                                                     <C>
    SECTION 1009.     Limitations on Sale and Leaseback Transactions............................56
    SECTION 1010.     Waiver of Certain Covenants...............................................56

ARTICLE ELEVEN  REDEMPTION OF SECURITIES........................................................57
    SECTION 1101.     Applicability of Article..................................................57
    SECTION 1102.     Election to Redeem; Notice to Trustee.....................................57
    SECTION 1103.     Selection by Trustee of Securities to Be Redeemed.........................57
    SECTION 1104.     Notice of Redemption......................................................58
    SECTION 1105.     Deposit of Redemption Price...............................................59
    SECTION 1106.     Securities Payable on Redemption Date.....................................59
    SECTION 1107.     Securities Redeemed in Part...............................................59

ARTICLE TWELVE  SINKING FUNDS...................................................................60
    SECTION 1201.     Applicability of Article..................................................60
    SECTION 1202.     Satisfaction of Sinking Fund Payments with Securities.....................60
    SECTION 1203.     Redemption of Securities for Sinking Fund.................................60

ARTICLE THIRTEEN  DEFEASANCE AND COVENANT DEFEASANCE............................................61
    SECTION 1301.     Company's Option to Effect Defeasance or Covenant Defeasance..............61
    SECTION 1302.     Defeasance and Discharge..................................................61
    SECTION 1303.     Covenant Defeasance.......................................................62
    SECTION 1304.     Conditions to Defeasance or Covenant Defeasance...........................62
    SECTION 1305.     Deposited Money and U.S. Government Obligations to Be Held in Trust;
                      Miscellaneous Provisions..................................................63
    SECTION 1306.     Reinstatement.............................................................64

ARTICLE FOURTEEN  CONVERSION OF SECURITIES......................................................64
    SECTION 1401.     Applicability of Article..................................................64
    SECTION 1402.     Exercise of Conversion Privilege..........................................65
    SECTION 1403.     No Fractional Shares......................................................66
    SECTION 1404.     Adjustment of Conversion Price............................................66
    SECTION 1405.     Notice of Certain Corporate Actions.......................................67
    SECTION 1406.     Reservation of Shares of Common Stock.....................................67
    SECTION 1407.     Payment of Certain Taxes Upon Conversion..................................67
    SECTION 1408.     Nonassessability..........................................................68
    SECTION 1409.     Provision in Case of Consolidation, Merger or Sale of Assets..............68
    SECTION 1410.     Duties of Trustee Regarding Conversion....................................69
    SECTION 1411.     Repayment of Certain Funds Upon Conversion................................69
</TABLE>
    

                                       -v-

<PAGE>   7

                                TABLE OF CONTENTS

                                   (CONTINUED)

                                                                            PAGE
                                                                            ----



                                      -vi-

<PAGE>   8
             Certain Sections of this Indenture relating to Sections
         310 through 318, inclusive, of the Trust Indenture Act of 1939:


<TABLE>
<CAPTION>
        Trust
      Indenture                                                          Indenture
     Act Section                                                          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
</TABLE>


                                      -vii-

<PAGE>   9


<TABLE>
<S>                  <C>                                            <C>
             (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.


                                     -viii-

<PAGE>   10

        INDENTURE, dated as of ___________, 1997, between Quantum Corporation, a
corporation duly organized and existing under the State of Delaware (herein
called the "Company"), having its principal executive office at 500 McCarthy
Boulevard, Milpitas, California 95035, and LaSalle National Bank, a national
banking association duly organized and existing under the laws of the United
States of America, 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 provided in this Indenture.

        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 covenanted and agreed, for the
equal and proportionate benefit of all Holders of the Securities or of series
thereof appertaining, 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
hereunder shall mean such accounting principles as are generally accepted 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


<PAGE>   11

        (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 Debt" means, in respect of a Sale and Lease-Back
Transaction involving a Principal Property, at the time of determination, the
lesser of: (a) the fair value of such property (as determined in good faith by
the Board of Directors); or (b) the present value of the total net amount of
rent required to be paid under such lease during the remaining term thereof
(including any renewal term or period for which such lease has been extended),
discounted at the rate of interest set forth or implicit in the terms of such
lease or, if not practicable to determine such rate, the weighted average
interest rate per annum (in the case of Original Issue Discount Securities, the
imputed interest rate) borne by the Securities of each series outstanding
pursuant to this Indenture compounded semi-annually. For purposes of the
foregoing definition, rent shall not include amounts required to be paid by the
lessee, whether or not designated as rent or additional rent, on account of or
contingent upon maintenance and repairs, insurance, taxes, assessments, water
rates and similar charges. In the case of any lease which is terminable by the
lessee upon the payment of a penalty, such net amount shall be the lesser of the
net amount determined assuming termination upon the first date such lease may be
terminated (in which case the net amount shall also include the amount of the
penalty, but no rent shall be considered as required to be paid under such lease
subsequent to the first date upon which it may be so terminated) and the net
amount determined assuming no such termination.

        "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 empowered to act for it with
respect to this Indenture.

        "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.

        "Common Stock" includes any stock of any class of the Company which has
no preference in respect of dividends or of amounts payable in the event of any
voluntary or involuntary liquidation, dissolution or winding-up of the Company
and which is not subject to redemption by the Company; provided, however,
subject to the provisions of Section 1409, shares issuable upon conversion of
Securities shall include only shares of the class designated as Common Stock of
the Company at the date of this Indenture or shares of any class or classes
resulting from any reclassification or reclassifications thereof and which have
no preference in respect of dividends or of amounts payable in the event of any
voluntary or involuntary liquidation, dissolution or winding-up of the Company
and which are not subject to redemption by the Company; provided, further that
if at any time there shall be more than one such resulting class, the shares of
each such class then so issuable shall be substantially in the proportion which
the total number of shares of such class resulting from all such
reclassifications bears to the total number of shares of all such classes
resulting from all such reclassifications.

        "Company" means the corporation 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 principal
financial officer, its Treasurer, an Assistant Treasurer, its Secretary or an
Assistant Secretary, and delivered to the Trustee.

        "Consolidated Net Tangible Assets" means, as of the time of
determination, total assets (excluding applicable reserves and other property
deductible items) less: (a) total current liabilities, except for (1) notes and
loans payable, (2) current maturities of long-term debt and (3) current
maturities of obligations under capital leases; and (b) goodwill, patents and
trademarks, to the extent included in total assets, all as set forth on the most
recent consolidated balance sheet of the Company and its Restricted Subsidiaries
and computed in accordance with generally accepted accounting principles.

        "Corporate Trust Office" means the corporate trust office of the Trustee
at 135 South LaSalle Street, Chicago, Illinois 60674-9135, 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 1303.

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


                                       -3-


<PAGE>   13

        "Defeasance" has the meaning specified in Section 1302.

        "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.

        "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; provided,
however, that if at any time more than one Person is acting as Trustee under
this Indenture due to the appointment of one or more separate Trustees for any
one or more separate series of Securities, "Indenture" shall mean, with respect
to such series of Securities for which any such Person is Trustee, this
instrument as originally executed or 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 and shall include the terms of particular
series of Securities for which such Person is Trustee established as
contemplated by Section 301, exclusive, however, of any provisions or terms
which relate solely to other series of Securities for which such Person is not
Trustee, regardless of when such terms or provisions were adopted, and exclusive
of any provisions or terms adopted by means of one or more indentures
supplemental hereto executed and delivered after such person had become such
Trustee, but to which such person, as such Trustee, was not a party; provided,
further that in the event that this Indenture is supplemented or amended by one
or more indentures supplemental hereto which are only applicable to certain
series of Securities, the term "Indenture" for a particular series of Securities
shall only include the supplemental indentures applicable thereto.

        "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.


                                       -4-

<PAGE>   14

        "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.

        "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.

        "Nonrecourse Obligation" means indebtedness or other obligations
substantially related to (i) the acquisition of assets not previously owned by
the Company or any Restricted Subsidiary or (ii) the financing of a project
involving the development or expansion of properties of the Company or any
Restricted Subsidiary, as to which the obligee with respect to such indebtedness
or obligation has no recourse to the Company or any Restricted Subsidiary or any
assets of the Company or any Restricted Subsidiary other than the assets which
were acquired with the proceeds of such transaction or the project financed with
the proceeds of such transaction (and the proceeds thereof).

        "Notice of Default" means a written notice of the kind specified in
Section 501(4).

        "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 principal financial officer, 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, or an employee of, 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 canceled 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;


                                       -5-

<PAGE>   15

        (3) Securities as to which Defeasance has been effected pursuant to
Section 1302; 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 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


                                       -6-

<PAGE>   16

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 the land, land improvements, buildings and
fixtures (to the extent they constitute real property interests, including any
leasehold interest therein) constituting the principal corporate office, any
manufacturing facility or any distribution center (whether now owned or
hereafter acquired) which: (a) is owned by the Company or any Subsidiary; (b) is
located within any of the present 50 states of the United States (or the
District of Columbia); (c) has not been determined in good faith by he Board of
Directors not to be materially important to the total business conducted by the
Company and its Subsidiaries taken as a whole; and (d) has a market value on the
date as of which the determination is being made in excess of 2.0% of
Consolidated Net Tangible Assets of the Company as most recently determined on
or prior to such date.

        "Record Date" means any Regular Record Date or Special Record Date.

        "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.

        "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.

        "Restricted Subsidiary" means any Subsidiary that owns any Principal
Property; provided, however, that the term "Restricted Subsidiary" shall not
include (a) any Subsidiary which is principally engaged in financing
receivables, or which is principally engaged in financing the Company's
operations outside the United States of America or (b) any Subsidiary less than
80% of the 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 if the Common Stock of such Subsidiary is traded on any
national securities exchange or quoted on the Nasdaq National Market or in the
over-the-counter market.

        "Sale and Leaseback Transaction" means any arrangement with any person
providing for the leasing by the Company or any Restricted Subsidiary of any
Principal Property which property has been or is to be sold or transferred by
the Company or such Restricted Subsidiary to such person.

        "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.


                                       -7-

<PAGE>   17

        "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
installment 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 of which at least a majority of the
outstanding voting stock having the power to elect a majority of the board of
directors of such corporation is at the time owned, directly or indirectly, by
the Company or by one or more other Subsidiaries, or by the Company and one or
more other Subsidiaries, and the accounts of which are consolidated with those
of the Company in its most recent consolidated financial statements in
accordance with generally accepted accounting principals. 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 1304.

        "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.


                                       -8-

<PAGE>   18

        Every certificate or opinion with respect to compliance with a condition
or covenant provided for in this Indenture 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 or she
has made such examination or investigation as is necessary to enable him or her
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 or her 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


                                       -9-

<PAGE>   19

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. The Trustee shall promptly deliver to the Company copies of all such
instrument or instruments and records delivered to the Trustee. 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 or her the execution thereof. Where such
execution is by a signer acting in a capacity other than his or her individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his or her 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, vote, 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 canceled 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



                                      -10-

<PAGE>   20

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 canceled 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,



                                      -11-

<PAGE>   21

        (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 (or by
facsimile transmissions ((312) 362-7357), provided that oral confirmation of
receipt shall have been received) to or with the Trustee at its Corporate Trust
Office, Attention: Corporate Trust Department, 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, Attention: Chief Financial Officer.

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 its 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 such 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.



                                      -12-

<PAGE>   22

        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 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 or the last date on which a Holder has the right to
convert a Security at a particular conversion price 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) or, if applicable to a
particular series of Securities, conversion 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, at the Stated Maturity or on such last day for
conversion, as the case may be.

SECTION 114. INDENTURE AND SECURITIES SOLELY CORPORATE OBLIGATIONS.

        No recourse for the payment of the principal of or premium, if any, or
interest on any Security, or for any claim based thereon or otherwise in respect
thereof, and no recourse under or upon any obligation, covenant or agreement of
the Company in this Indenture or in any supplemental indenture or in any
Security, or because any indebtedness represented thereby, shall be had against
any incorporator, stockholder, employee, agent, officer, or director or
subsidiary, as such, past, present or future, of the Company or of any successor
corporation, either directly or through the Company or any successor
corporation, whether by virtue of any constitution, statute or rule of law, or
by the enforcement of any assessment or penalty or otherwise; it being expressly
understood that all such liability is hereby expressly waived and released as a
condition of, and as a consideration for, the execution of this Indenture and
the issue of the Securities.



                                      -13-

<PAGE>   23

                                   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. Any such Board Resolution or record of such action shall have
attached thereto a true and correct copy of the form of Security referred to
therein approved by or pursuant to such Board Resolution.

        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.

                               QUANTUM CORPORATION

No. _________                                                     $_____________

        Quantum Corporation, a corporation duly organized and existing under the
laws 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



                                      -14-


<PAGE>   24

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].

        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.



                                      -15-

<PAGE>   25

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

Dated:

                                            QUANTUM CORPORATION

                                            By:
                                               ---------------------------------
                                                  Title:

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 __________ (herein called the
"Indenture," which term shall have the meaning assigned to it in such
instrument), between the Company and LaSalle National Bank, as Trustee (herein
called the "Trustee," which term includes any successor trustee under the
Indenture), and reference is hereby made to the Indenture and all indentures
supplemental thereto 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 -- 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 -- 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



                                      -16-

<PAGE>   26

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 FOR             REDEMPTION PRICE FOR
               REDEMPTION-THROUGH              REDEMPTION-OTHERWISE
                OPERATION OF THE              THAN THROUGH OPERATION
     YEAR         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 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.]



                                      -17-


<PAGE>   27

        [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 CONVERTIBLE INTO COMMON STOCK OF THE COMPANY, INSERT
- -- Subject to the provisions of the Indenture, the Holder of this Security is
entitled, at its option, at any time on or before [insert date] (except that, in
case this Security or any portion hereof shall be called for redemption, such
right shall terminate with respect to this Security or portion hereof, as the
case may be, so called for redemption at the close of business on the first
Business Day next preceding the date fixed for redemption as provided in the
Indenture unless the Company defaults in making the payment due upon
redemption), to convert the principal amount of this Security (or any portion
hereof which is $1,000 or an integral multiple thereof), into fully paid and
non-assessable shares (calculated as to each conversion to the nearest 1/100th
of a share) of the Common Stock of the Company, as said shares shall be
constituted at the date of conversion, at the conversion price of $______
principal amount of Securities for each share of Common Stock, or at the
adjusted conversion price in effect at the date of conversion determined as
provided in the Indenture, upon surrender of this Security, together with the
conversion notice hereon duly executed, to the Company at the designated office
or agency of the Company in __________, accompanied (if so required by the
Company) by instruments of transfer, in form satisfactory to the Company and to
the Trustee, duly executed by the Holder or by its duly authorized attorney in
writing. Such surrender shall, if made during any period beginning at the close
of business on a Regular Record Date and ending at the opening of business on
the Interest Payment Date next following such Regular Record Date (unless this
Security or the portion being converted shall have been called for redemption on
a Redemption Date during the period beginning at the close of business on a
Regular Record Date and ending at the opening of business on the first Business
Day after the next succeeding Interest Payment Date, or if such Interest Payment
Date is not a Business Day, the second such Business Day), also be accompanied
by payment in 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 installment of interest (with certain
exceptions provided in the Indenture), no adjustment is to be made on conversion
for interest accrued hereon or for dividends on shares of Common Stock issued on
conversion. The Company is not required to issue fractional shares upon any such
conversion, but shall make adjustment therefor in cash on the basis of the
current market value of such fractional interest 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 of 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 or sale by a holder of the
number of shares of Common Stock into which this Security might have been
converted immediately prior to such consolidation, merger or sale (assuming such
holder of Common Stock failed to exercise any rights of election and received
per share the kind and amount received per share by a plurality of non-electing
shares). In the event of conversion of this Security in part only, a new



                                      -18-


<PAGE>   28

Security or Securities for the unconverted portion hereof shall be issued in the
name of the Holder hereof upon the cancellation hereof.]

        [IF THE SECURITY IS CONVERTIBLE INTO OTHER SECURITIES OF THE COMPANY,
SPECIFY THE CONVERSION FEATURES.]

        [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.]

        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 more than 50% 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.



                                      -19-

<PAGE>   29

        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 its
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.

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



                                      -20-

<PAGE>   30

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 herein referred
to in the within-mentioned Indenture.

                             LASALLE NATIONAL BANK,
                             As Trustee

                             By:
                                ----------------------------------------
                                Authorized Officer

SECTION 206.      FORM OF CONVERSION NOTICE.

        Conversion notices shall be in substantially the following form:

        To Quantum Corporation:

        The undersigned owner of this Security hereby irrevocably exercises the
option to convert this Security, or portion hereof (which is $1,000 or an
integral multiple thereof) below designated, into shares of Common Stock of the
Company in accordance with the terms of the Indenture referred to in this
Security, and directs that the shares issuable and deliverable upon the
conversion, together with any check in payment for fractional shares and any
Securities representing any unconverted principal amount hereof, be issued and
delivered to the registered holder hereof unless a different name has been
indicated below. If this Notice is being delivered on a date after the close of
business on a Regular Record Date and prior to the opening of business on the
related Interest Payment Date (unless this Security or the portion thereof being
converted has been called for redemption on a Redemption Date during the period
beginning g on a Regular Record Date and ending at the opening of business on
the first Business Day after the next succeeding Interest Payment Date, or if
such Interest Payment Date is not a Business Day, the second such Business Day),
this Notice is accompanied by payment, in funds acceptable to the Company, of an
amount equal to the interest payable on such Interest Payment Date of the
principal of this Security to be converted. If shares are to be issued in the
name of a person other than the undersigned, the undersigned will pay all
transfer taxes payable with respect hereto. Any amount required to be paid by
the undersigned on account of interest accompanies this Security.

           PRINCIPAL AMOUNT TO BE CONVERTED
(IN AN INTEGRAL MULTIPLE OF $1,000, IF LESS THAN ALL)

                U.S. $_________



                                      -21-


<PAGE>   31

Dated:
      ------------
                                        ----------------------------------------
                                        Signature(s) must be guaranteed by a
                                        qualified guarantor institution if
                                        shares of Common Stock are to be
                                        delivered, or Securities to be issued,
                                        other than to and in the name of the
                                        registered owner.


                                        ---------------------------------------
                                                   Signature Guaranty

        Fill in for registration of shares of Common Stock and Security if to be
issued otherwise than to the registered Holder.

- ----------------------------                   ---------------------------------
(Name)                                         Social Security or Other Taxpayer
                                               Identification Number

- ----------------------------
(Address)

- ----------------------------
Please print Name and Address
(including zip code number)

[The above conversion notice is to be modified, as appropriate, for conversion
into other securities or property of the Company.]

                                  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;

        (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;



                                      -23-

<PAGE>   33

        (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 1302 or Section 1303 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, the terms of any right to convert Securities of the
series into shares of Common Stock of the Company or other securities or
property;

        (17) 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;

        (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



                                      -24-

<PAGE>   34

        (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.

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 principal financial
officer, 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, a copy of such Board Resolution, the Officers' Certificate setting
forth the terms of the series and an Opinion of Counsel, with such Opinion of
Counsel stating,



                                      -25-


<PAGE>   35

        (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 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 



                                      -26-

<PAGE>   36

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 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 its attorney duly authorized in writing.


                                      -27-

<PAGE>   37

        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.

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.



                                      -28-

<PAGE>   38

        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.

        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 



                                      -29-

<PAGE>   39

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.

        Subject to the provisions of Section 1402, in the case of any Security
(or any part thereof) which is converted after any Regular Record Date and on or
prior to the next succeeding Interest Payment Date (other than any Security the
principal of (or premium, if any, on) which shall become due and payable,
whether at Stated Maturity or by declaration of acceleration prior to such
Interest Payment Date), interest whose Stated Maturity is on such Interest
Payment Date 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 any 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 or in Section 1402, in the case of any Security (or any part thereof)
which is converted, interest whose Stated Maturity is after the date of
conversion of such Security (or such part thereof) 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 



                                      -30-

<PAGE>   40

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 canceled 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
canceled by the Trustee. No Securities shall be authenticated in lieu of or in
exchange for any Securities canceled as provided in this Section, except as
expressly permitted by this Indenture. All canceled 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



                                      -31-

<PAGE>   41


                (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

        (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.



                                      -32-

<PAGE>   42
                                  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

        (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) 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 90 consecutive days; or

        (6) 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 



                                      -33-

<PAGE>   43

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

        (7) 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(5) or 501(6)) 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(5)
or 501(6) 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


                                      -34-

<PAGE>   44
               (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 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 



                                      -35-

<PAGE>   45

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.

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, if any, 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, if any, 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;


                                      -36-

<PAGE>   46

        (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 AND TO CONVERT.

        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), to convert
such Securities in accordance with Article Fourteen 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


                                      -37-

<PAGE>   47

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 (subject to the limitations
contained in this Indenture) or by the Holders, as the case may be.

SECTION 512.      CONTROL BY HOLDERS.

        The Holders of 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 the Trustee shall not have determined that the action so
directed would be unjustly prejudicial to Holders of Securities of that series,
or any other series, not taking part in such direction, and

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

SECTION 513.      WAIVER OF PAST DEFAULTS.

        The Holders of not less than 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.


                                      -38-

<PAGE>   48

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 or in any suit for the
enforcement of the right to convert any Security in accordance with Article
Fourteen.

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.



                                      -39-
<PAGE>   49

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.

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


                                      -40-

<PAGE>   50

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 AND ACT AS TRUSTEE UNDER OTHER INDENTURES.

        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.

        Subject to the limitations imposed by the Trust Indenture Act, nothing
in this Indenture shall prohibit the Trustee from becoming and acting as trustee
under other indentures under which other securities, or certificates of interest
of participation in other securities, of the Company are outstanding in the same
manner as if it were not Trustee hereunder.

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 liability in connection with the exercise or performance of
any of its powers or duties hereunder.


                                      -41-

<PAGE>   51

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.

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.

        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


                                      -42-


<PAGE>   52

        (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, the
retiring Trustee may petition, or 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 


                                      -43-

<PAGE>   53

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 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 



                                      -44-

<PAGE>   54

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 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 (or if the Authenticating Agent is a member of a bank holding
company system, its bank holding company has) 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



                                      -45-

<PAGE>   55

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 612, 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.

                                  LASALLE NATIONAL BANK,
                                  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 15 days after the Regular Record Date,
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 such Regular Record
Date, 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;

provided that no such list need be furnished by the Company to the Trustee so
long as the Trustee is acting as Security Registrar.



                                      -46-

<PAGE>   56

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.

        Reports so required to be transmitted at stated intervals of not more
than 12 months shall be transmitted no later than July 1 in each calendar year,
commencing with the first July 1 after the first issuance of Securities pursuant
to this Indenture.

        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 the Trust Indenture 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



                                               -47-


<PAGE>   57

SECTION 801. COMPANY MAY CONSOLIDATE, ETC., ONLY ON CERTAIN TERMS.

        The Company shall not consolidate with or merge into any other Person
(in a transaction in which the Company is not the surviving corporation) or
convey, transfer or lease its properties and assets substantially as an entirety
to any Person, unless:

        (1) in case the Company shall consolidate with or merge into another
Person (in a transaction in which the Company is not the surviving corporation)
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, limited liability company, partnership or
trust, shall be 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 and the conversion rights shall be provided
for in accordance with Article Fourteen, if applicable, or as otherwise
specified pursuant to Section 301, by supplemental indenture satisfactory in
form to the Trustee, executed and delivered to the Trustee, by the Person (if
other than the Company) formed by such consolidation or into which the Company
shall have been merged or by the Person which shall have acquired the Company's
assets;

        (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; and

        (3) 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.



                                      -48-


<PAGE>   58

                                  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, or
successive successions, 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

        (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



                                      -49-

<PAGE>   59

        (9) to make provision with respect to the conversion rights of Holders
pursuant to the requirements of Article Fourteen, including providing for the
conversion of the securities into any security (other than the Common Stock of
the Company) or property of the Company; or

        (10) 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 (10)
shall not adversely affect the interests of the Holders of Securities of any
series in any material respect; or

        (11) to supplement any of the provisions of the Indenture to such extent
as shall be necessary to permit or facilitate the defeasance and discharge of
any series of Securities pursuant to Articles Four and Thirteen, provided that
any such action shall not adversely affect the interests of the Holders of
Securities of such series or any other series of Securities in any material
respect.

SECTION 902. SUPPLEMENTAL INDENTURES WITH CONSENT OF HOLDERS.

        With the consent of the Holders of 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 installment
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

        (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;


                                      -50-


<PAGE>   60

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), or

        (4) if applicable, make any change that adversely affects the right to
convert any security as provided in Article Fourteen or pursuant to Section 301
(except as permitted by Section 901(9)) or decrease the conversion rate or
increase the conversion price of any such security.

        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 Sections 601 and 603) 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



                                      -51-

<PAGE>   61

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 of that series 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. Unless otherwise provided
in a supplemental indenture or pursuant to Section 301 hereof, the Place of
Payment for any series of Securities shall be the Corporate Trust Office of the
Trustee.

        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 


                                      -52-
<PAGE>   62

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, on or 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 a period
ending on the earlier of the date that is ten Business Days prior to the date
such money would escheat to the State or 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 each Place of Payment, 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 


                                      -53-

<PAGE>   63

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. The fiscal
year of the Company currently ends on December 31; and the Company will give
prompt written notice of any change of its fiscal year.

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.

SECTION 1006. MAINTENANCE OF PROPERTIES.

        The Company will cause all properties used or useful in the conduct of
its business 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, and to the extent, 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 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 upon the income, profits
or property of the Company, 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; 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 (i) whose amount, applicability or validity is being contested in good
faith by appropriate proceedings or (ii) if the failure to pay or discharge
would not have a material adverse effect on the assets, business, operations,
properties or condition (financial or otherwise) of the Company and its
Subsidiaries taken, as a whole.

SECTION 1008. LIMITATION ON LIENS.

        The Company will not issue, incur, create, assume or guarantee, and will
not permit any Restricted Subsidiary to issue, incur, create, assume or
guarantee, any debt for borrowed money secured by a mortgage, security interest,
pledge, lien, charge or other encumbrance ("mortgages") upon any Principal
Property of the Company or any Restricted Subsidiary or upon any shares of stock
or indebtedness of any Restricted Subsidiary (whether such Principal Property,
shares or indebtedness are now existing or owned or hereafter created or
acquired) without in any such case effectively providing 



                                      -54-
<PAGE>   64

concurrently with issuance, incurrence, creation, assumption or guarantee of any
such secured debt, or the grant of a mortgage with respect to any such
indebtedness, that the Securities (together with, if the Company shall so
determine, any other indebtedness of or guarantee by the Company or such
Restricted Subsidiary ranking equally with the Securities) shall be secured
equally and ratably with (or, at the option of the Company, prior to) such
secured debt. The foregoing restriction, however, will not apply to:

        (1) mortgages on property existing at the time of acquisition thereof by
the Company or any Subsidiary, provided that such mortgages were in existence
prior to the contemplation of such acquisitions;

        (2) mortgages on property, shares of stock or indebtedness or other
assets of any corporation existing at the time such corporation becomes a
Restricted Subsidiary, provided that such mortgages are not incurred in
anticipation of such corporation becoming a Restricted Subsidiary;

        (3) mortgages on property, shares of stock or indebtedness existing at
the time of acquisition thereof by the Company or a Restricted Subsidiary or
mortgages thereon to secure the payment of all or any part of the purchase price
thereof, or mortgages on property, shares of stock or indebtedness to secure any
indebtedness for borrowed money incurred prior to, at the time of or within 270
days after, the latest of the acquisition thereof, or, in the case of property,
the completion of construction, the completion of improvements, or the
commencement of substantial commercial operation of such property for the
purpose of financing all or any part of the purchase price thereof, such
construction, or the making of such improvements;

        (4) mortgages to secure indebtedness owing to the Company or to a
Restricted Subsidiary:

        (5) mortgages existing at the date of this Indenture;

        (6) mortgages 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 a corporation as an entirety or substantially as an entirety to
the Company or a Restricted Subsidiary, provided that such mortgage was not
incurred in anticipation of such merger or consolidation or sale, lease or other
disposition;

        (7) mortgages in favor of the United States or any State, territory or
possession thereof (or the District of Columbia), or any department, agency,
instrumentality or political subdivision of the United States or any State,
territory or possession thereof (or the District of Columbia), to secure
partial, progress, advance or other payments pursuant to any contract or statute
or to secure any indebtedness incurred for the purpose of financing all or any
part of the purchase price of the cost of constructing or improving the property
subject to such mortgages;

        (8) mortgages created in connection with the acquisition of assets or a
project financed with, and created to secure, a Nonrecourse Obligation;



                                      -55-
<PAGE>   65

        (9) extensions, renewals, refinancings or replacements of any mortgage
referred to in the foregoing clauses (1), (2), (3), (4), (5), (6), (7) and (8)
provided, however, that any mortgages permitted by any of the foregoing clauses
(1), (2), (3), (4), (5), (6), (7) and (8) shall not extend to or cover any
property of the Company or such Restricted Subsidiary, as the case may be, other
than the property, if any, specified in such clauses and improvements thereto,
and provided further that any refinancing or replacement of any mortgages
permitted by the foregoing clauses (7) and (8) shall be of the type referred to
in such clauses (7) or (8), as the case may be.

        Notwithstanding the restrictions set forth in the preceding paragraph,
the Company or any Restricted Subsidiary will be permitted to issue, incur,
create, assume or guarantee debt secured by a mortgage which would otherwise be
subject to such restrictions, without equally and ratably securing the
Securities, provided that after giving effect thereto, the aggregate amount of
all debt so secured by mortgages (not including mortgages permitted under
clauses (1) through (10) above) does not exceed 15% of the Consolidated Net
Tangible Assets of the Company as most recently determine on or prior to such
date.

SECTION 1009. LIMITATIONS ON SALE AND LEASEBACK TRANSACTIONS.

        The Company will not, nor will it permit any Restricted Subsidiary to,
enter into any Sale and Lease-Back Transaction with respect to any Principal
Property, other than any such transaction involving a lease for a term of not
more than three years of any such transaction between the Company and a
Restricted Subsidiary or between Restricted Subsidiaries, unless: (1) the
Company or such Restricted Subsidiary would be entitled to incurs indebtedness
secured by a mortgage on the Principal Property involved in such transaction at
least equal in amount to the Attributable Debt with respect to such Sale and
Lease-Back Transaction, without equally and ratably securing the Securities,
pursuant to Section 1008; or (2) the Company shall apply an amount equal to the
greater of the net proceeds of such sale or the Attributable Debt with respect
to such Sale and Lease-Back Transaction within 180 days of such sale to either
(or a combination of) the retirement (other than mandatory retirement, mandatory
prepayment or sinking fund payment or by a payment at maturity) of debt for
borrowed money of the Company or a Restricted Subsidiary that matures more than
12 months after the creation of such indebtedness or the purchase, construction
or development of other comparable property.

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(19),
901(2), 901(7), 1006, 1007, 1008 or 1009 for the benefit of the Holders of such
series 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.



                                      -56-
<PAGE>   66

                                 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 45
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 45 days prior to the
Redemption Date by the Trustee, from the Outstanding Securities of such series
not previously called for redemption, by lot, or in the Trustee's discretion, on
a pro-rate basis, 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 45 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.

        If any Security selected for partial redemption is converted in part
before termination of the conversion right with respect to the portion of the
Security so selected, the converted portion of such Security shall be deemed (so
far as may be) to be the portion selected for redemption. Securities which have
been converted during a selection of Securities to be redeemed shall be treated
by the Trustee as Outstanding for the purpose of such selection.



                                      -57-
<PAGE>   67

        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 its address appearing in
the Security Register.

        All notices of redemption shall state:

        (1) the Redemption Date,

        (2) the Redemption Price (including accrued interest, if any),

        (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,

        (6) if applicable, the conversion price, that the date on which the
right to convert the principal of the Securities or the portions thereof to be
redeemed will terminate will be the Redemption Date and the place or places
where such Securities may be surrendered for conversion, and

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



                                      -58-
<PAGE>   68

        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.

        On or 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.

        If any Security called for redemption is converted, any money deposited
with the Trustee or with a Paying Agent or so segregated and held in trust for
the redemption of such Security shall (subject to the right of any Holder of
such Security to receive interest as provided in the last paragraph of Section
307) be paid to the Company on Company Request, or if then held by the Company,
shall be discharged from such trust.

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 its 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 



                                      -59-
<PAGE>   69

principal amount equal to and in exchange for the unredeemed portion of the
principal of the Security so surrendered.

                                 ARTICLE TWELVE

                                  SINKING FUNDS

SECTION 1201. 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 1202. Each sinking
fund payment shall be applied to the redemption of Securities as provided for by
the terms of such Securities.

SECTION 1202. 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 1203. 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 1202 and will also deliver to the Trustee any Securities to be so
delivered. Not less than 30 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




                                      -60-
<PAGE>   70

redemption of such Securities shall be made upon the terms and in the manner
stated in Sections 1106 and 1107.

                                ARTICLE THIRTEEN

                       DEFEASANCE AND COVENANT DEFEASANCE

SECTION 1301. COMPANY'S OPTION TO EFFECT DEFEASANCE OR COVENANT DEFEASANCE.

        The Company may elect, at its option at any time, to have Section 1302
or Section 1303 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 1302 or 1303, 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 1302. 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 1304 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 1304 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, and, if applicable, Article Fourteen, (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 1303 applied to such Securities.

SECTION 1303. 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 Sections 1006 through
1009, inclusive, and any covenants provided pursuant to Section 301(19), 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), Sections 1006 through
1009, inclusive, and any such covenants provided pursuant to Section 301(19),
901(2) or 901(7)) 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 



                                      -61-
<PAGE>   71

conditions set forth in Section 1304 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 1304. CONDITIONS TO DEFEASANCE OR COVENANT DEFEASANCE.

        The following shall be the conditions to the application of Section 1302
or Section 1303 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 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 1302 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 



                                      -62-
<PAGE>   72

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 1303 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 Officers'
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(5) and (6), 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).

        (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 Officers'
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 1305. 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 1306, the Trustee and any such other trustee are referred to


                                      -63-
<PAGE>   73

collectively as the "Trustee") pursuant to Section 1304 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 1304 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 1304 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 1306. 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 1302 or 1303 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 1305 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 FOURTEEN

                            CONVERSION OF SECURITIES

SECTION 1401. APPLICABILITY OF ARTICLE.

        The provisions of this Article shall be applicable to the Securities of
any series which are convertible into shares of Common Stock of the Company, and
the issuance of such shares of Common Stock upon the conversion of such
Securities, except as otherwise specified as contemplated by Section 301 for the
Securities of such series.



                                      -64-
<PAGE>   74

SECTION 1402. EXERCISE OF CONVERSION PRIVILEGE.

        In order to exercise a conversion privilege, the Holder of a Security of
a series with such a privilege shall surrender such Security to the Company at
the office or agency maintained for that purpose pursuant to Section 1002,
accompanied by a duly executed conversion notice to the Company substantially in
the form set forth in Section 206 stating that the Holder elects to convert such
Security or a specified portion thereof. Such notice shall also state, if
different from the name and address of such Holder, the name or names (with
address) in which the certificate or certificates for shares of Common Stock
which shall be issuable on such conversion shall be issued. Securities
surrendered for conversion shall (if so required by the Company or the Trustee)
be duly endorsed by or accompanied by instruments of transfer in forms
satisfactory to the Company and the Trustee duly executed by the registered
Holder or its attorney duly authorized in writing; and Securities so surrendered
for conversion (in whole or in part) during the period from the close of
business on any Regular Record Date to the opening of business on the next
succeeding Interest Payment Date (excluding Securities or portions thereof
called for redemption during the period beginning at the close of business on a
Regular Record Date and ending at the opening of business on the first Business
Day after the next succeeding Interest Payment Date, or if such Interest Payment
Date is not a Business Day, the second such Business Day) shall also be
accompanied by payment in funds acceptable to the Company of an amount equal to
the interest payable on such Interest Payment Date on the principal amount of
such Security then being converted, and such interest shall be payable to such
registered Holder notwithstanding the conversion of such Security, subject to
the provisions of Section 307 relating to the payment of Defaulted Interest by
the Company. As promptly as practicable after the receipt of such notice and of
any payment required 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 setting forth the
terms of such series of Security, and the surrender of such Security in
accordance with such reasonable regulations as the Company may prescribe, the
Company shall issue and shall deliver, at the office or agency at which such
Security is surrendered, to such Holder or on its written order, a certificate
or certificates for the number of full shares of Common Stock issuable upon the
conversion of such Security (or specified portion thereof), in accordance with
the provisions of such Board Resolution, Officers' Certificate or supplemental
indenture, and cash as provided therein in respect of any fractional share of
such Common Stock otherwise issuable upon such conversion. Such conversion shall
be deemed to have been effected immediately prior to the close of business on
the date on which such notice and such payment, if required, shall have been
received in proper order for conversion by the Company and such Security shall
have been surrendered as aforesaid (unless such Holder shall have so surrendered
such Security and shall have instructed the Company to effect the conversion on
a particular date following such surrender and such Holder shall be entitled to
convert such Security on such date, in which case such conversion shall be
deemed to be effected immediately prior to the close of business on such date)
and at such time the rights of the Holder of such Security as such Security
Holder shall cease and the person or persons in whose name or names any
certificate or certificates for shares of Common Stock of the Company shall be
issuable upon such conversion shall be deemed to have become the Holder or
Holders of record of the shares represented thereby. Except as set forth above
and subject to the final paragraph of Section 307, no payment or adjustment
shall be made upon any conversion on account of any interest accrued on the
Securities (or any part thereof) surrendered for conversion or on account of any
dividends on the Common Stock of the Company issued upon such conversion.



                                      -65-
<PAGE>   75

        In the case of any Security which is converted in part only, upon such
conversion the Company shall execute and the Trustee shall authenticate and
deliver to or on the order of the Holder thereof, at the expense of the Company,
a new Security or Securities of the same series, of authorized denominations, in
aggregate principal amount equal to the unconverted portion of such Security.

SECTION 1403. NO FRACTIONAL SHARES.

        No fractional share of Common Stock of the Company shall be issued upon
conversions of Securities of any series. 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 shall be computed on the basis of
the aggregate principal amount of the Securities (or specified portions thereof
to the extent permitted hereby) so surrendered. If, except for the provisions of
this Section 1403, any Holder of a Security or Securities would be entitled to a
fractional share of Common Stock of the Company upon the conversion of such
Security or Securities, or specified portions thereof, the Company shall pay to
such Holder an amount in cash equal to the current market value of such
fractional share computed, (i) if such Common Stock is listed or admitted to
unlisted trading privileges on a national securities exchange or market, on the
basis of the last reported sale price regular way on such exchange or market on
the last trading day prior to the date of conversion upon which such a sale
shall have been effected, or (ii) if such Common Stock is not at the time so
listed or admitted to unlisted trading privileges on a national securities
exchange or market, on the basis of the average of the bid and asked prices of
such Common Stock in the over-the-counter market, on the last trading day prior
to the date of conversion, as reported by the National Quotation Bureau,
Incorporated or similar organization if the National Quotation Bureau,
Incorporated is no longer reporting such information, or if not so available,
the fair market price as determined by the Board of Directors. For purposes of
this Section, "trading day" shall mean each Monday, Tuesday, Wednesday, Thursday
and Friday other than any day on which the Common Stock is not traded on the
Nasdaq National Market, or if the Common Stock is not traded on the Nasdaq
National Market, on the principal exchange or market on which the Common Stock
is traded or quoted.

SECTION 1404. ADJUSTMENT OF CONVERSION PRICE.

        The conversion price of Securities of any series that is convertible
into Common Stock of the Company shall be adjusted for any stock dividends,
stock splits, reclassifications, combinations or similar transactions in
accordance with the terms of the supplemental indenture or Board Resolutions
setting forth the terms of the Securities of such series.

        Whenever the conversion price is adjusted, the Company shall compute the
adjusted conversion price in accordance with terms of the applicable Board
Resolution or supplemental indenture and shall prepare an Officers' Certificate
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 each office or agency maintained for the purpose of conversion of
Securities pursuant to Section 1002 and, if different, with the Trustee. The
Company shall forthwith cause a notice setting forth the adjusted conversion
price to be mailed, first class postage prepaid, to each Holder of Securities of
such series at its address appearing on the Security Register and to any
conversion agent other than the Trustee.



                                      -66-
<PAGE>   76

SECTION 1405.         NOTICE OF CERTAIN CORPORATE ACTIONS.

        In case:

        (1) the Company shall declare a dividend (or any other distribution) on
its Common Stock payable otherwise than in cash out of its retained earnings
(other than a dividend for which approval of any shareholders of the Company is
required) that would require an adjustment pursuant to Section 1404; or

        (2) the Company shall authorize the granting to all or substantially all
of the holders of its Common Stock of rights, options or warrants to subscribe
for or purchase any shares of capital stock of any class or of any other rights
(other than any such grant for which approval of any shareholders of the Company
is required); or

        (3) 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, merger or share exchange to which the Company is a party
and for which approval of any shareholders of the Company is required), or of
the sale of all or substantially all of the assets of the Company; or

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

then the Company shall cause to be filed with the Trustee, 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
(1) or (2) above) prior to the applicable record date hereinafter specified, a
notice stating (i) the date on which a record is to be taken for the purpose of
such dividend, distribution, rights, options 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, options or warrants are to be
determined, or (ii) the date on which such reclassification, consolidation,
merger, share exchange, sale, 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 deliverable upon such
reclassification, consolidation, merger, share exchange, sale, dissolution,
liquidation or winding up. If at any time the Trustee shall not be the
conversion agent, a copy of such notice shall also forthwith be filed by the
Company with the Trustee.

SECTION 1406. RESERVATION OF SHARES OF COMMON STOCK.

        The Company shall at all times reserve and keep available, free from
preemptive 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 of the Company then issuable upon the conversion of all outstanding
Securities of any series that has conversion rights.

SECTION 1407. PAYMENT OF CERTAIN TAXES UPON CONVERSION.



                                      -67-
<PAGE>   77

        Except as provided in the next sentence, the Company will pay any and
all taxes that may be payable in respect of the issue or delivery of shares of
its 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 its 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 1408. NONASSESSABILITY.

        The Company covenants that all shares of its Common Stock which may be
issued upon conversion of Securities will upon issue in accordance with the
terms hereof be duly and validly issued and fully paid and nonassessable.

SECTION 1409. PROVISION IN CASE OF CONSOLIDATION, MERGER OR SALE OF ASSETS.

        In case of any consolidation or merger of the Company with or into any
other Person, any merger of another Person with or 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 any
conveyance, sale, transfer or lease 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 Security of a series then Outstanding that is convertible into Common Stock
of the Company shall have the right thereafter (which right shall be the
exclusive conversion right thereafter available to said Holder), during the
period such Security shall be convertible, to convert such Security only into
the kind and amount of securities, cash and other property receivable upon such
consolidation, merger, conveyance, sale, transfer or lease 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, conveyance,
sale, transfer or lease, assuming such holder of Common Stock of the Company (i)
is not a Person with which the Company consolidated or merged with or into or
which merged into or with the Company or to which such conveyance, sale,
transfer or lease was made, as the case may be (a "Constituent Person"), or an
Affiliate of a Constituent Person and (ii) 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, conveyance, sale, transfer
or lease (provided that if the kind or amount of securities, cash and other
property receivable upon such consolidation, merger, conveyance, sale, transfer,
or lease is not the same for each share of Common Stock of the Company held
immediately prior to such consolidation, merger, conveyance, sale, transfer or
lease by others than a Constituent Person or an Affiliate thereof and in respect
of which such rights of election shall not have been exercised ("Non-electing
Share"), then for the purpose of this Section 1409 the kind and amount of
securities, cash and other property receivable upon such consolidation, merger,
conveyance, sale, transfer or lease by the holders of 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 or in accordance with the



                                      -68-
<PAGE>   78

terms of the supplemental indenture or Board Resolutions setting forth the terms
of such adjustments. The above provisions of this Section 1409 shall similarly
apply to successive consolidations, mergers, conveyances, sales, transfers or
leases. Notice of the execution of such a supplemental indenture shall be given
by the Company to the Holder of each Security of a series that is convertible
into Common Stock of the Company as provided in Section 106 promptly upon such
execution.

        Neither the Trustee nor any conversion agent, if any, shall be under any
responsibility to determine the correctness of any provisions contained in any
such supplemental indenture relating either to the kind or amount of shares of
stock or other securities or property or cash receivable by Holders of
Securities of a series convertible into Common Stock of the Company upon the
conversion of their Securities after any such consolidation, merger, conveyance,
transfer, sale or lease or to any such adjustment, but may accept as conclusive
evidence of the correctness of any such provisions, and shall be protected in
relying upon, an Opinion of Counsel with respect thereto, which the Company
shall cause to be furnished to the Trustee upon request.

SECTION 1410. DUTIES OF TRUSTEE REGARDING CONVERSION.

        Neither the Trustee nor any conversion agent shall at any time be under
any duty or responsibility to any Holder of Securities of any series that is
convertible into Common Stock of the Company to determine whether any facts
exist 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, whether herein or in any supplemental indenture, any
resolutions of the Board of Directors or written instrument executed by one or
more officers of the Company provided to be employed in making the same. Neither
the Trustee nor any conversion agent shall be accountable with respect to the
validity or value (or the kind or amount) of any shares of Common Stock of the
Company, or of any securities or property, which may at any time be issued or
delivered upon the conversion of any Securities and neither the Trustee nor any
conversion agent makes any representation with respect thereto. Subject to the
provisions of Section 601, neither the Trustee nor any conversion agent shall be
responsible for any failure of the Company to issue, transfer or deliver any
shares of its Common Stock or stock certificates or other securities or property
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 Fourteen or
in the applicable supplemental indenture, resolutions of the Board of Directors
or written instrument executed by one or more duly authorized officers of the
Company.

SECTION 1411. REPAYMENT OF CERTAIN FUNDS UPON CONVERSION.

        Any funds which at any time shall have been deposited by the Company or
on its behalf with the Trustee or any other paying agent for the purpose of
paying the principal of, and premium, if any, and interest, if any, on any of
the Securities (including, but not limited to, funds deposited for the sinking
fund referred to in Article Twelve and funds deposited pursuant to Article
Thirteen hereof) and which shall not be required for such purposes because of
the conversion of such Securities as provided in this Article Fourteen shall
after such conversion be repaid to the Company by the Trustee upon the Company's
written request.



                                      -69-
<PAGE>   79

        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.



                                      -70-
<PAGE>   80

        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.

                                       QUANTUM CORPORATION

                                       By:
                                          --------------------------------------
                                                          Title:

Attest:

- ---------------------------------      LASALLE NATIONAL BANK, as Trustee

                                       By:
                                          --------------------------------------
                                                          Title:


Attest:

- ---------------------------------
Authorized Officer


                                      -71-

<PAGE>   1

                                                                     EXHIBIT 4.2


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

                               Quantum Corporation

                                       TO

                              LaSalle National Bank


                                   as Trustee


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


                                    Indenture

                       Dated as of _________________, 1997


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




                          Subordinated Debt Securities


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



<PAGE>   2

                                TABLE OF CONTENTS
<TABLE>
<CAPTION>

                                                                           PAGE
                                                                           ----
<S>                                                                         <C>

ARTICLE ONE  DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION.........1
     SECTION 101. Definitions................................................1
        Act..................................................................2
        Affiliate............................................................2
        control..............................................................2
        Authenticating Agent.................................................2
        Board of Directors...................................................2
        Board Resolution.....................................................2
        Business Day.........................................................2
        Commission...........................................................2
        Common Stock.........................................................2
        Company..............................................................3
        Company Request......................................................3
        Company Order........................................................3
        Corporate Trust Office...............................................3
        corporation..........................................................3
        Covenant Defeasance..................................................3
        Credit Agreement ....................................................3
        Defaulted Interest...................................................3
        Defeasance...........................................................3
        Depositary...........................................................3
        Designated Senior Indebtedness.......................................3
        Event of Default.....................................................4
        Exchange Act.........................................................4
        Expiration Date......................................................4
        Global Security......................................................4
        Holder...............................................................4
        Indebtedness.........................................................4
        Indenture............................................................5
        interest.............................................................5
        Interest Payment Date................................................5
        Investment Company Act...............................................5
        Maturity.............................................................5
        Notice of Default....................................................5
        Officers' Certificate................................................5
        Opinion of Counsel...................................................6
        Original Issue Discount Security.....................................6
        Outstanding..........................................................6
        Paying Agent.........................................................7
        Payment Blockage Notice..............................................7
        Person...............................................................7

</TABLE>


                                       -i-

<PAGE>   3

                                TABLE OF CONTENTS
                                   (CONTINUED)
<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                          <C>

        Place of Payment......................................................7
        Predecessor Security..................................................7
        Record Date...........................................................7
        Redemption Date.......................................................7
        Redemption Price......................................................7
        Regular Record Date...................................................7
        Representative........................................................7
        Securities............................................................7
        Securities Act........................................................8
        Security Register.....................................................8
        Security Registrar....................................................8
        Senior Indebtedness...................................................8
        Special Record Date...................................................8
        Stated Maturity.......................................................8
        Subsidiary............................................................8
        Sumitomo Credit Agreement.............................................8
        Trust Indenture Act...................................................9
        Trustee...............................................................9
        U.S. Government Obligation............................................9
        Vice President .......................................................9
   SECTION 102.  Compliance Certificates and Opinions.........................9
   SECTION 103.  Form of Documents Delivered to Trustee......................10
   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...............................................14
   SECTION 113.  Legal Holidays..............................................14
   SECTION 114.  Indenture and Securities Solely Corporate Obligations.......14

ARTICLE TWO  SECURITY FORMS..................................................14
   SECTION 201.  Forms Generally.............................................14
   SECTION 202.  Form of Face of Security....................................15
   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

</TABLE>


                                      -ii-

<PAGE>   4

                                TABLE OF CONTENTS
                                   (CONTINUED)
<TABLE>
<CAPTION>

                                                                            PAGE
                                                                            ----
<S>                                                                          <C>

   SECTION 206. Form of Conversion Notice....................................22

ARTICLE THREE  THE SECURITIES................................................23
   SECTION 301.  Amount Unlimited; Issuable in Series........................23
   SECTION 302.  Denominations...............................................26
   SECTION 303.  Execution, Authentication, Delivery and Dating..............26
   SECTION 304.  Temporary Securities........................................28
   SECTION 305.  Registration; Registration of Transfer and Exchange.........28
   SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities............30
   SECTION 307.  Payment of Interest; Interest Rights Preserved..............30
   SECTION 308.  Persons Deemed Owners.......................................32
   SECTION 309.  Cancellation................................................32
   SECTION 310.  Computation of Interest.....................................32

ARTICLE FOUR  SATISFACTION AND DISCHARGE.....................................32
   SECTION 401.  Satisfaction and Discharge of Indenture.....................32
   SECTION 402.  Application of Trust Money..................................33

ARTICLE FIVE  REMEDIES.......................................................34
   SECTION 501.  Events of Default...........................................34
   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..............................37
   SECTION 507.  Limitation on Suits.........................................38
   SECTION 508.  Unconditional Right of Holders to Receive Principal,
                 Premium and Interest and to Convert.........................38
   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..........................................39
   SECTION 513.  Waiver of Past Defaults.....................................39
   SECTION 514.  Undertaking for Costs.......................................40
   SECTION 515.  Waiver of Usury, Stay or Extension Laws.....................40

ARTICLE SIX  THE TRUSTEE.....................................................40
   SECTION 601.  Certain Duties and Responsibilities.........................40
   SECTION 602.  Notice of Defaults..........................................41
   SECTION 603.  Certain Rights of Trustee...................................41

</TABLE>



                                      -iii-

<PAGE>   5

                                TABLE OF CONTENTS
                                   (CONTINUED)
<TABLE>
<CAPTION>
                                                                               PAGE
                                                                               ----
<S>                                                                             <C>

   SECTION 604.  Not Responsible for Recitals or Issuance of Securities.........42
   SECTION 605.  May Hold Securities and Act as Trustee Under Other Indentures .42
   SECTION 606.  Money Held in Trust............................................42
   SECTION 607.  Compensation and Reimbursement.................................42
   SECTION 608.  Conflicting Interests..........................................43
   SECTION 609.  Corporate Trustee Required; Eligibility........................43
   SECTION 610.  Resignation and Removal; Appointment of Successor..............43
   SECTION 611.  Acceptance of Appointment by Successor.........................45
   SECTION 612.  Merger, Conversion, Consolidation or Succession to Business....46
   SECTION 613.  Preferential Collection of Claims Against Company..............46
   SECTION 614.  Appointment of Authenticating Agent............................46

ARTICLE SEVEN  HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY................48
   SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders .....48
   SECTION 702.  Preservation of Information; Communications to Holders.........48
   SECTION 703.  Reports by Trustee.............................................49
   SECTION 704.  Reports by Company.............................................49

ARTICLE EIGHT  CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE.............49
   SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms...........49
   SECTION 802.  Successor Substituted..........................................50

ARTICLE NINE  SUPPLEMENTAL INDENTURES...........................................50
   SECTION 901.  Supplemental Indentures Without Consent of Holders.............50
   SECTION 902.  Supplemental Indentures With Consent of Holders................52
   SECTION 903.  Execution of Supplemental Indentures...........................53
   SECTION 904.  Effect of Supplemental Indentures..............................53
   SECTION 905.  Conformity with Trust Indenture Act............................53
   SECTION 906.  Reference in Securities to Supplemental Indentures.............53
   SECTION 907.  Subordination Unimpaired.......................................53

ARTICLE TEN  COVENANTS..........................................................54
   SECTION 1001. Payment of Principal, Premium and Interest.....................54
   SECTION 1002. Maintenance of Office or Agency................................54
   SECTION 1003. Money for Securities Payments to Be Held in Trust..............54
   SECTION 1004. Statement by Officers as to Default............................55
   SECTION 1005. Existence......................................................56
   SECTION 1006. Maintenance of Properties......................................56
   SECTION 1007. Payment of Taxes and Other Claims..............................56
   SECTION 1008. Waiver of Certain Covenants....................................56

</TABLE>



                                      -iv-

<PAGE>   6

                                TABLE OF CONTENTS
                                   (CONTINUED)
<TABLE>
<CAPTION>

                                                                               PAGE
                                                                               ----
<S>                                                                            <C>

ARTICLE ELEVEN  REDEMPTION OF SECURITIES........................................57
   SECTION 1101. Applicability of Article.......................................57
   SECTION 1102. Election to Redeem; Notice to Trustee..........................57
   SECTION 1103. Selection by Trustee of Securities to Be Redeemed..............57
   SECTION 1104. Notice of Redemption...........................................58
   SECTION 1105. Deposit of Redemption Price....................................59
   SECTION 1106. Securities Payable on Redemption Date..........................59
   SECTION 1107. Securities Redeemed in Part....................................59

ARTICLE TWELVE  SINKING FUNDS...................................................60
   SECTION 1201. Applicability of Article.......................................60
   SECTION 1202. Satisfaction of Sinking Fund Payments with Securities..........60
   SECTION 1203. Redemption of Securities for Sinking Fund......................60

ARTICLE THIRTEEN  DEFEASANCE AND COVENANT DEFEASANCE............................61
   SECTION 1301. Company's Option to Effect Defeasance or Covenant Defeasance ..61
   SECTION 1302. Defeasance and Discharge.......................................61
   SECTION 1303. Covenant Defeasance............................................61
   SECTION 1304. Conditions to Defeasance or Covenant Defeasance................62
   SECTION 1305. Deposited Money and U.S. Government Obligations to be Held in
                 Trust; Miscellaneous Provisions................................64
   SECTION 1306. Reinstatement..................................................64

ARTICLE FOURTEEN  CONVERSION OF SECURITIES......................................65
   SECTION 1401. Applicability of Article.......................................65
   SECTION 1402. Exercise of Conversion Privilege...............................65
   SECTION 1403. No Fractional Shares...........................................66
   SECTION 1404. Adjustment of Conversion Price.................................67
   SECTION 1405. Notice of Certain Corporate Actions............................67
   SECTION 1406. Reservation of Shares of Common Stock..........................68
   SECTION 1407. Payment of Certain Taxes Upon Conversion.......................68
   SECTION 1408. Nonassessability...............................................68
   SECTION 1409. Provision in Case of Consolidation, Merger or Sale of Assets...68
   SECTION 1410. Duties of Trustee Regarding Conversion.........................69
   SECTION 1411. Repayment of Certain Funds Upon Conversion.....................70

ARTICLE FIFTEEN  SUBORDINATION OF SECURITIES....................................70
   SECTION 1501. Agreement of Subordination.....................................70
   SECTION 1502. Payments to Holders............................................70

</TABLE>


                                       -v-

<PAGE>   7

                                TABLE OF CONTENTS
                                   (CONTINUED)
<TABLE>
<CAPTION>
                                                                               PAGE
                                                                               ----
   <S>                                                                          <C>

   SECTION 1503. Subrogation of Securities......................................73
   SECTION 1504. Authorization to Effect Subordination..........................74
   SECTION 1505. Notice to Trustee..............................................74
   SECTION 1506. Trustee's Relation to Senior Indebtedness......................75
   SECTION 1507. No Impairment of Subordination.................................75
   SECTION 1508. Certain Conversions Deemed Payment.............................76
   SECTION 1509. Article Applicable to Paying Agents............................76
   SECTION 1510. Senior Indebtedness Entitled to Rely...........................76

</TABLE>


                                      -vi-

<PAGE>   8

   
                              QUANTUM CORPORATION
    
           Certain Sections of this Indenture relating to Sections 310
          through 318, inclusive, of the Trust Indenture Act of 1939:


<TABLE>
<CAPTION>

       Trust Indenture                                                Indenture
         Act Section                                                  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.




                                      -vii-
<PAGE>   9

            INDENTURE, dated as of __________, 1997, between Quantum
Corporation, a corporation duly organized and existing under the laws of the
State of Delaware (herein called the "Company"), having its principal executive
office at 500 McCarthy Boulevard, Milpitas, California, 95035, and LaSalle
National Bank, a national banking association duly organized and existing under
the laws of the United States of America, 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 provided in this Indenture.

            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 covenanted and agreed, for the
equal and proportionate benefit of all Holders of the Securities or of series
thereof appertaining, 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 hereunder shall mean such accounting principles as are
generally accepted 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



<PAGE>   10

            (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.

            "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 empowered to act for it
with respect to this Indenture.

            "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.

            "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.

            "Common Stock" includes any stock of any class of the Company which
has no preference in respect of dividends or of amounts payable in the event of
any voluntary or involuntary liquidation, dissolution or winding-up of the
Company and which is not subject to redemption by the Company; provided,
however, subject to the provisions of Section 1409, shares issuable upon
conversion of Securities shall include only shares of the class designated as
Common Stock of the Company at the date of this Indenture or shares of any class
or classes resulting from any reclassification or reclassifications thereof and
which have no preference in respect of dividends or of amounts payable in the
event of any voluntary or involuntary liquidation, dissolution or winding-up of
the Company and which are not subject to redemption by the Company; provided,
further, that if at any time there shall be more than one such resulting class,
the shares of each such class then so issuable shall be substantially in the
proportion which the total number of shares of such class resulting from all
such reclassifications bears to the total number of shares of all such classes
resulting from all such reclassifications.



                                       -2-

<PAGE>   11

            "Company" means the corporation 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 principal
financial officer, its Treasurer, an Assistant Treasurer, its Secretary or an
Assistant Secretary, and delivered to the Trustee.

            "Corporate Trust Office" means the corporate trust office of the
Trustee at 135 South LaSalle Street, Chicago, Illinois 60674-9135, 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 1303.

            "Credit Agreement" means that certain Credit Agreement, dated as of
June 6, 1997, by and among the Company, each of the financial institutions from
time to time listed on Schedule I thereto (the "Banks"), ABN AMRO Bank N.V., San
Francisco International Branch and CIBC Inc., as Co-Arrangers for the Banks,
Canadian Imperial Bank of Commerce, as Administrative Agent for the Banks, ABN
AMRO Bank N.V., San Francisco International Branch, as Syndication Agent for the
Banks, and Bank of America National Trust Association, as Documentation Agent
for the Banks, as amended, amended and restated, supplemented or otherwise
modified from time to time.

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

            "Defeasance" has the meaning specified in Section 1302.

            "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.

            "Designated Senior Indebtedness" means the Credit Agreement, the
Sumitomo Credit Agreement and any particular Senior Indebtedness in which the
instrument creating or evidencing the same or the assumption or guarantee
thereof (or related agreements or documents to which the Company is a party)
expressly provides that such Indebtedness shall be "Designated Senior
Indebtedness" for purposes of the Indenture (provided that such instrument,
agreement or other document may place limitations and conditions on the right of
such Senior Indebtedness to exercise the rights of Designated Senior
Indebtedness). If any payment made to any holder of any Designated Senior
Indebtedness or its Representative with respect to such Designated Senior
Indebtedness is rescinded or must otherwise be returned by such holder or
Representative upon the insolvency, bankruptcy or reorganization of the Company
or otherwise, the reinstated Indebtedness of the Company arising as a result of
such rescission



                                       -3-

<PAGE>   12

or return shall constitute Designated Senior Indebtedness effective as of the
date of such rescission or return.

            "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.

            "Indebtedness" means with respect to any Person, and without
duplication, (a) all indebtedness, obligations and other liabilities (contingent
or otherwise) of such Person for borrowed money (including obligations of the
Company in respect of overdrafts, foreign exchange contracts, currency exchange
agreements, interest rate protection agreements, and any loans or advances from
banks, whether or not evidenced by notes or similar instruments) or evidenced by
bonds, debentures, notes or similar instruments (whether or not the recourse of
the lender is to the whole of the assets of such Person or to only a portion
thereof) (other than any account payable or other accrued current liability or
obligation incurred in the ordinary course of business in connection with the
obtaining of materials or services), (b) all reimbursement obligations and other
liabilities (contingent or otherwise) of such Person with respect to letters of
credit, bank guarantees or bankers' acceptances, (c) all obligations and
liabilities (contingent or otherwise) in respect of leases of such Person
required, in conformity with generally accepted accounting principles, to be
accounted for as capitalized lease obligations on the balance sheet of such
Person and all obligation and other liabilities (contingent or otherwise) under
any lease or related document (including a purchase agreement) in connection
with the lease of real property which provides that such Person is contractually
obligated to purchase or cause a third party to purchase the leased property and
thereby guarantee a minimum residual value of the leased property to the lessor
and the obligations of such Person under such lease or related document to
purchase or to cause a third party to purchase such leased property, (d) all
obligations of such Person (contingent or otherwise) with respect to an interest
rate or other swap, cap or collar agreement or other similar instrument or
agreement or foreign currency hedge, exchange, purchase or similar instrument or
agreement, (e) all direct or indirect guaranties or similar agreements by such
Person in respect of, and obligations or liabilities (contingent or otherwise)
of such Person to purchase or otherwise acquire or otherwise assure a creditor
against loss in respect of indebtedness, obligations or liabilities of another
Person of the kind described in clauses (a) through (d), (f) any indebtedness or
other obligations described in clauses (a) through (d) secured by any mortgage,
pledge, lien or other encumbrance existing on property which is owned or held by
such Person, regardless of whether the indebtedness or other obligation secured
thereby shall have been assumed by such Person and (g) any and all deferrals,
renewals, extensions and refundings of, or amendments,



                                       -4-

<PAGE>   13

modifications or supplements to, any indebtedness, obligation or liability of
the kind described in clauses (a) through (f).

            "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; provided,
however, that if at any time more than one Person is acting as Trustee under
this Indenture due to the appointment of one or more separate Trustees for any
one or more separate series of Securities, "Indenture" shall mean, with respect
to such series of Securities for which any such Person is Trustee, this
instrument as originally executed or 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 and shall include the terms of particular
series of Securities for which such Person is Trustee established as
contemplated by Section 301, exclusive, however, of any provisions or terms
which relate solely to other series of Securities for which such Person is not
Trustee, regardless of when such terms or provisions were adopted, and exclusive
of any provisions or terms adopted by means of one or more indentures
supplemental hereto executed and delivered after such person had become such
Trustee, but to which such person, as such Trustee, was not a party; provided,
further that in the event that this Indenture is supplemented or amended by one
or more indentures supplemental hereto which are only applicable to certain
series of Securities, the term "Indenture" for a particular series of Securities
shall only include the supplemental indentures applicable thereto.

            "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.

            "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.

            "Notice of Default" means a written notice of the kind specified in
Section 501(4).

            "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 principal financial officer, 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.



                                       -5-

<PAGE>   14

            "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for, or an employee of, 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 canceled 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 1302; 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 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



                                       -6-

<PAGE>   15

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.

            "Payment Blockage Notice" has the meaning specified in Section 1504.

            "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.

            "Record Date" means any Regular Record Date or Special Record Date.

            "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.

            "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.

            "Representative" means the (a) indenture trustee or other trustee,
agent or representative for any Senior Indebtedness or (b) with respect to any
Senior Indebtedness that does not have any such trustee, agent or other
representative, (i) in the case of such Senior Indebtedness issued pursuant to
an agreement providing for voting arrangements as among the holders or owners of
such Senior Indebtedness, any holder or owner of such Senior Indebtedness acting
with the consent of the required persons necessary to bind such holders or
owners of such Senior Indebtedness and (ii) in the case of all other such Senior
Indebtedness, the holder or owner of such Senior Indebtedness.

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



                                       -7-

<PAGE>   16

            "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, premium, if any,
interest (including all interest accruing subsequent to the commencement of any
bankruptcy or similar proceeding, whether or not a claim for post-petition
interest is allowable as a claim in any such proceeding) and rent payable on or
in connection with, and all fees, costs, expenses and other amounts accrued or
due on or in connection with, Indebtedness of the Company, whether outstanding
on the date of this Indenture or thereafter created, incurred, assumed,
guaranteed or in effect guaranteed by the Company (including all deferrals,
renewals, extensions or refundings of, or amendments, modifications or
supplements to, the foregoing), unless in the case of any particular
Indebtedness the instrument creating or evidencing the same or the assumption or
guarantee thereof expressly provides that such Indebtedness shall not be senior
in right of payment to the Securities or expressly provides that such
Indebtedness is "pari passu" or "junior" to the Securities. Notwithstanding the
foregoing, the term Senior Indebtedness shall not include any Indebtedness of
the Company to any subsidiary of the Company, a majority of the voting stock of
which is owned, directly or indirectly, by the Company or the Company's 5%
Convertible Subordinated Notes due 2003. If any payment made to any holder of
any Senior Indebtedness or its Representative with respect to such Senior
Indebtedness is rescinded or must otherwise be returned by such holder or
Representative upon the insolvency, bankruptcy or reorganization of the Company
or otherwise, the reinstated Indebtedness of the Company arising as a result of
such rescission or return shall constitute Senior Indebtedness effective as of
the date of such rescission or return.

            "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
installment 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 of which at least a majority of the
outstanding voting stock having the power to elect a majority of the board of
directors of such corporation is at the time owned, directly or indirectly, by
the Company or by one or more other Subsidiaries, or by the Company and one or
more other Subsidiaries, and the accounts of which are consolidated with those
of the Company in its most recent consolidated financial statements in
accordance with generally accepted accounting principles. 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.

            "Sumitomo Credit Agreement" means that certain Credit Agreement,
dated as of September 22, 1995 by and among the Company, the several financial
institutions listed on the signature pages thereto (collectively, the "Banks"),
and The Sumitomo Bank, Limited, acting through its San Francisco Branch,



                                       -8-

<PAGE>   17

as agent for the Banks (the "Agent") and as Issuer, as amended, amended and
restated, supplemented or otherwise modified from time to time.

            "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
1304.

            "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 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 or
she has made such examination or investigation as is necessary to enable him or
her 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.



                                       -9-

<PAGE>   18

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 or her 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. The
Trustee shall promptly deliver to the Company copies of all such instrument or
instruments delivered to the Trustee. 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 or her the execution thereof.
Where such execution is by a signer acting in a capacity other than his or her
individual capacity, such certificate or affidavit shall also constitute
sufficient proof of his or her authority. The fact and date of the execution of
any such



                                      -10-

<PAGE>   19

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, vote, 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 canceled 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



                                      -11-

<PAGE>   20

be canceled 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 (or by
facsimile transmissions ((312) 443-2914), provided that oral confirmation of
receipt shall have been received) to or with the Trustee at its Corporate Trust
Office, Attention: Corporate Trust Department, 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, Attention: Chief Financial Officer.

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 its address as it appears in the Security Register,
not later than



                                      -12-

<PAGE>   21

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 such 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.



                                      -13-

<PAGE>   22

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 or the last date on which a Holder has the right
to convert a Security at a particular conversion price 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) or, if applicable to a
particular series of Securities, conversion 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, at the Stated Maturity or on such last day for
conversion, as the case may be.

SECTION 114. INDENTURE AND SECURITIES SOLELY CORPORATE OBLIGATIONS.

            No recourse for the payment of the principal of or premium, if any,
or interest on any Security, or for any claim based thereon or otherwise in
respect thereof, and no recourse under or upon any obligation, covenant or
agreement of the Company in this Indenture or in any supplemental indenture or
in any Security, or because of the creation of any indebtedness represented
thereby, shall be had against any incorporator, stockholder, employee, agent,
officer, or director or subsidiary, as such, past, present or future, of the
Company or of any successor corporation, either directly or through the Company
or any successor corporation, whether by virtue of any constitution, statute or
rule of law, or by the enforcement of any assessment or penalty or otherwise; it
being expressly understood that all such liability is hereby expressly waived
and released as a condition of, and as a consideration for, the execution of
this Indenture and the issue of the Securities.

                                   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



                                      -14-

<PAGE>   23

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. Any such Board Resolution or
record of such action shall have attached thereto a true and correct copy of the
form of Security referred to therein approved by or pursuant to such Board
Resolution.

            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.]

                               QUANTUM CORPORATION

              ____________________________________________________

No.__________                                                     $_____________

            Quantum Corporation, a corporation duly organized and existing under
the laws 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 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].



                                      -15-

<PAGE>   24

            [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.

            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:                                 QUANTUM CORPORATION


                                       By:
                                          ----------------------------------
                                       Title:
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 __________, 1997 (herein called the
"Indenture," which term shall have the meaning assigned to it in such
instrument), between the Company and LaSalle National Bank, as Trustee (herein
called the "Trustee," which term includes any successor trustee under the
Indenture), and reference is hereby made to the Indenture and



                                      -16-

<PAGE>   25

all indentures supplemental thereto 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 -- The Securities of this series are subject
to redemption upon not less than [IF APPLICABLE, INSERT -- 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 -- on or before _________, ___%, and if redeemed] during the
12-month period beginning ________ of the years indicated, 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.]


                       REDEMPTION                           REDEMPTION
          YEAR           PRICE                 YEAR           PRICE
          ----           -----                 ----           -----



            [IF APPLICABLE, INSERT -- The Securities of this series are subject
to redemption upon not less than [IF APPLICABLE, INSERT -- 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,



                         REDEMPTION PRICE FOR       REDEMPTION PRICE FOR
                         REDEMPTION-THROUGH         REDEMPTION-OTHERWISE
                           OPERATION OF THE        THAN THROUGH OPERATION
          YEAR               SINKING FUND            OF THE SINKING FUND 
          ----               ------------            ------------------- 



                                      -17-

<PAGE>   26

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 CONVERTIBLE INTO COMMON STOCK OF THE COMPANY,
INSERT -- Subject to the provisions of the Indenture, the Holder of this
Security is entitled, at its option, at any time on or before [insert date]
(except that, in case this Security or any portion hereof shall be called for
redemption, such right shall terminate with respect to this Security or portion
hereof, as the case may be, so called for redemption at the close of business on
the first Business Day next preceding the date fixed for redemption as provided
in the Indenture unless the Company defaults in making the payment due upon
redemption), to convert the principal amount of this Security (or any portion
hereof which is $1,000 or an integral multiple thereof), into fully paid and
non-assessable shares (calculated as to each conversion to the nearest 1/100th
of a share) of the Common Stock of the Company, as said shares shall be
constituted at the date of conversion, at the conversion price of $______
principal amount of Securities for each share of Common Stock, or at the
adjusted conversion price in effect at the date of conversion determined as
provided in the Indenture, upon surrender of this Security, together with the
conversion notice hereon duly executed, to the Company at the designated office
or agency of the Company in ____________, accompanied (if so required by the
Company) by instruments of transfer, in form satisfactory to the Company and to
the Trustee, duly executed by the Holder or by its duly authorized attorney in
writing.



                                      -18-

<PAGE>   27

Such surrender shall, if made during any period beginning at the close of
business on a Regular Record Date and ending at the opening of business on the
Interest Payment Date next following such Regular Record Date (unless this
Security or the portion being converted shall have been called for redemption on
a Redemption Date during the period beginning at the close of business on a
Regular Record Date and ending at the opening of business on the first Business
Day after the next succeeding Interest Payment Date, or if such Interest Payment
Date is not a Business Day, the second such Business Day), also be accompanied
by payment in 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 installment of interest (with certain
exceptions provided in the Indenture), no adjustment is to be made on conversion
for interest accrued hereon or for dividends on shares of Common Stock issued on
conversion. The Company is not required to issue fractional shares upon any such
conversion, but shall make adjustment therefor in cash on the basis of the
current market value of such fractional interest 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 of 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 or sale by a holder of the
number of shares of Common Stock into which this Security might have been
converted immediately prior to such consolidation, merger or sale (assuming such
holder of Common Stock failed to exercise any rights of election and received
per share the kind and amount received per share by a plurality of non-electing
shares). In the event of conversion of this Security in part only, a new
Security or Securities for the unconverted portion hereof shall be issued in the
name of the Holder hereof upon the cancellation hereof.]

            [IF THE SECURITY IS CONVERTIBLE INTO OTHER SECURITIES OF THE
COMPANY, SPECIFY THE CONVERSION FEATURES.]

            The indebtedness evidenced by this Security is, to the extent and in
the manner provided in the Indenture, subordinate and subject in right of
payment to the prior payment in full of all Senior Indebtedness of the Company,
and this Security is issued subject to such 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.

            [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.]



                                      -19-

<PAGE>   28

            [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.]

            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 more than 50% 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



                                      -20-

<PAGE>   29

satisfactory to the Company and the Security Registrar duly executed by, the
Holder hereof or its 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.

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 herein
referred to in the within-mentioned Indenture.


                                           LASALLE NATIONAL BANK,
                                           As Trustee


                                           By:
                                              ------------------------------
                                           Authorized Officer

SECTION 206. FORM OF CONVERSION NOTICE.

            Conversion notices shall be in substantially the following form:

            To Quantum Corporation:

            The undersigned owner of this Security hereby irrevocably exercises
the option to convert this Security, or portion hereof (which is $1,000 or an
integral multiple thereof) below designated, into shares of Common Stock of the
Company in accordance with the terms of the Indenture referred to in this
Security, and directs that the shares issuable and deliverable upon the
conversion, together with any check in payment for fractional shares and any
Securities representing any unconverted principal amount hereof, be issued and
delivered to the registered holder hereof unless a different name has been
indicated below. If this Notice is being delivered on a date after the close of
business on a Regular Record Date and prior to the opening of business on the
related Interest Payment Date (unless this Security or the portion thereof being
converted has been called for redemption on a Redemption Date during the period
beginning at the close of business on a Regular Record Date and ending at the
opening of business on the first Business Day after the next succeeding Interest
Payment Date, or if such Interest Payment Date is not a Business Day, the second
such Business Day), this Notice is accompanied by payment, in funds acceptable
to the Company, of an amount equal to the interest payable on such Interest
Payment Date of the principal of this Security to be converted. If shares are to
be issued in the name of a person other than the undersigned, the undersigned
will pay all transfer taxes payable with respect hereto. Any amount required to
be paid by the undersigned on account of interest accompanies this Security.



                                      -22-

<PAGE>   31

    Principal Amount to be Converted
  (in an integral multiple of $1,000, if less
                  than all)
              U.S. $
                     ---------
Dated:            
      ------------                  --------------------------------------------

                                    --------------------------------------------
                                    Signature(s) must be guaranteed by a
                                    commercial bank or trust company or a member
                                    firm of a national stock exchange if shares
                                    of Common Stock are to be delivered, or
                                    Securities to be issued, other than to and
                                    in the name of the registered owner.

                                    --------------------------------------------
                                    Signature Guaranty

            Fill in for registration of shares of Common Stock and Security if
to be issued otherwise than to the registered Holder.



- --------------------------------             -----------------------------------
(Name)                                       Social Security or Other Taxpayer
                                             Identification Number

- --------------------------------
(Address)


- --------------------------------
Please print Name and Address
(including zip code number)

[The above conversion notice is to be modified, as appropriate, for conversion
into other securities or property of the Company.]


                                  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.



                                      -23-

<PAGE>   32

            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;

            (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;



                                      -24-

<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 1302 or Section 1303
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, the terms of any right to convert Securities of
the series into shares of Common Stock of the Company or other securities or
property;

            (17) 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;



                                      -25-

<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 principal financial
officer, 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



                                      -26-

<PAGE>   35

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, a copy of such Board Resolution, the Officers'
Certificate setting forth the terms of the series and an Opinion of Counsel,
with such 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 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



                                      -27-

<PAGE>   36

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 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.



                                      -28-

<PAGE>   37

            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 its 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.

            (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,



                                      -29-

<PAGE>   38

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 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



                                      -30-

<PAGE>   39

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.

            Subject to the provisions of Section 1402, in the case of any
Security (or any part thereof) which is converted after any Regular Record Date
and on or prior to the next succeeding Interest Payment Date (other than any
Security the principal of (or premium, if any, on) which shall become due and
payable, whether at Stated Maturity or by declaration of acceleration prior to
such Interest Payment Date), interest whose Stated Maturity is on such Interest
Payment Date 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 any 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 or in Section 1402, in the case of any Security (or any part thereof)



                                      -31-

<PAGE>   40

which is converted, interest whose Stated Maturity is after the date of
conversion of such Security (or such part thereof) 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 canceled 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
canceled by the Trustee. No Securities shall be authenticated in lieu of or in
exchange for any Securities canceled as provided in this Section, except as
expressly permitted by this Indenture. All canceled 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



                                      -32-

<PAGE>   41

            (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

            (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



                                      -33-

<PAGE>   42

(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 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) 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 90 consecutive days; or



                                      -34-

<PAGE>   43

            (6) 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

            (7) 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(5) or 501(6)) 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(5)
or 501(6) 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. Any
payments by the Company on the Securities following any such acceleration will
be subject to the subordination provisions of Article Fifteen to the extent
provided therein.

            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,



                                      -35-

<PAGE>   44

                (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 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.



                                      -36-

<PAGE>   45

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.

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, if any, 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



                                      -37-

<PAGE>   46

to the amounts due and payable on such Securities for principal and any premium,
if any, 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 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 AND TO CONVERT.

            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), to convert
such Securities in accordance with Article Fourteen and to institute suit for
the enforcement of any such payment, and such rights shall not be impaired
without the consent of such Holder.



                                      -38-

<PAGE>   47

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 (subject to the
limitations contained in this Indenture) or by the Holders, as the case may be.

SECTION 512. CONTROL BY HOLDERS.

            The Holders of 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 the Trustee shall not have determined that the action so
directed would be unjustly prejudicial to Holders of Securities of that series,
or any other series, not taking part in such direction; and

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

SECTION 513. WAIVER OF PAST DEFAULTS.



                                      -39-

<PAGE>   48

            The Holders of not less than 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 or in any suit for the
enforcement of the right to convert any Security in accordance with Article
Fourteen.

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



                                      -40-

<PAGE>   49

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.

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,



                                      -41-

<PAGE>   50

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 AND ACT AS TRUSTEE UNDER OTHER INDENTURES.

            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.

            Subject to the limitations imposed by the Trust Indenture Act,
nothing in this Indenture shall prohibit the Trustee from becoming and acting as
trustee under other indentures under which other securities, or certificates of
interest of participation in other securities, of the Company are outstanding in
the same manner as if it were not Trustee hereunder.

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



                                      -42-

<PAGE>   51

            (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.

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.



                                      -43-

<PAGE>   52

            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 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, the retiring Trustee may petition, any Holder
who



                                      -44-

<PAGE>   53

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 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



                                      -45-

<PAGE>   54

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.

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 (or if the Authenticating Agent is a member of a bank holding
company system, its bank holding company has) 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



                                      -46-

<PAGE>   55

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 612, 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:



                                      -47-

<PAGE>   56

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


                                          LASALLE NATIONAL BANK,
                                          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 15 days after the Regular Record
Date, 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 such Regular
Record Date, 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;

provided that no such list need be furnished by the Company to the Trustee so
long as the Trustee is acting 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, if any, 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.



                                      -48-

<PAGE>   57

            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.

            Reports so required to be transmitted at stated intervals of not
more than 12 months shall be transmitted no later than July 1 in each calendar
year, commencing with the first July 1 after the first issuance of Securities
pursuant to this Indenture.

            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 the Trust Indenture 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 (in a transaction in which the Company is not the surviving corporation)
or convey, transfer or lease its properties and assets substantially as an
entirety to any Person, unless:

            (1) in case the Company shall consolidate with or merge into another
Person (in an transaction in which the Company is not the surviving corporation)
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, limited liability company, partnership or
trust, shall be organized and validly existing under the laws of the United



                                      -49-

<PAGE>   58

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 and the conversion rights shall be provided
for in accordance with Article Fourteen, if applicable, or as otherwise
specified pursuant to Section 301, by supplemental indenture satisfactory in
form to the Trustee, executed and delivered to the Trustee, by the Person (if
other than the Company) formed by such consolidation or into which the Company
shall have been merged or by the Person which shall have acquired the Company's
assets;

            (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; and

            (3) 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:



                                      -50-

<PAGE>   59

            (1) to evidence the succession of another Person to the Company, or
successive successions, 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

            (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 make provision with respect to the conversion rights of
Holders pursuant to the requirements of Article Fourteen, including providing
for the conversion of the securities into any security (other than the Common
Stock of the Company) or property of the Company; or

            (10) 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 (10)
shall not adversely affect the interests of the Holders of Securities of any
series in any material respect; or



                                      -51-

<PAGE>   60



            (11) to supplement any of the provisions of the Indenture to such
extent as shall be necessary to permit or facilitate the defeasance and
discharge of any series of Securities pursuant to Articles Four and Thirteen,
provided that any such action shall not adversely affect the interests of the
Holders of Securities of such series or any other series of Securities in any
material respect.

SECTION 902. SUPPLEMENTAL INDENTURES WITH CONSENT OF HOLDERS.

            With the consent of the Holders of 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
installment 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 such series of Securities in a manner adverse to the Holders of
Securities of such series, 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 1008, 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 1008, or the deletion of this
proviso, in accordance with the requirements of Sections 611 and 901(8), or

            (4) if applicable, make any change that adversely affects the right
to convert any security as provided in Article Fourteen or pursuant to Section
301 (except as permitted by Section 901(9)) or decrease the conversion rate or
increase the conversion price of any such security.



                                      -52-

<PAGE>   61

            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 Sections 601 and 603) 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.

SECTION 907. SUBORDINATION UNIMPAIRED.

            No provision in any supplemental indenture which affects the
superior position of the holders of Senior Indebtedness shall be effective
against holders of Senior Indebtedness.



                                      -53-

<PAGE>   62

                                   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 of that series 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. Unless otherwise provided
in a supplemental indenture or pursuant to Section 301 hereof, the Place of
Payment for any series of Securities shall be the Corporate Trust Office of the
Trustee.

            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, on or prior to each due date of the principal of
or any premium or interest on any Securities of that series,



                                      -54-

<PAGE>   63

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 a period
ending on the earlier of the date that is ten Business Days prior to the date
such money would escheat to the State or 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 each Place of Payment, 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. The fiscal year of the



                                      -55-

<PAGE>   64

Company ends on December 31; and the Company will give the Trustee prompt
written notice of any change of its fiscal year.

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.

SECTION 1006. MAINTENANCE OF PROPERTIES.

            The Company will cause all properties used or useful in the conduct
of its business 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, and to the extent, 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 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 upon the income,
profits or property of the Company, 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; 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 (i) whose amount, applicability or validity is being
contested in good faith by appropriate proceedings or (ii) if the failure to pay
or discharge would not have a material adverse effect on the assets, business,
operations, properties or condition (financial or otherwise) of the Company and
its Subsidiaries, taken as a whole.

SECTION 1008. 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(19),
901(2), 901(7), 1006 or 1007 for the benefit of the Holders of such series if
before the time for such compliance the Holders of at least 50% 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.



                                      -56-

<PAGE>   65

                                 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 45
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 45 days
prior to the Redemption Date by the Trustee, from the Outstanding Securities of
such series not previously called for redemption, by lot, or in the Trustee's
discretion, on a pro-rata basis, 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 45 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.

            If any Security selected for partial redemption is converted in part
before termination of the conversion right with respect to the portion of the
Security so selected, the converted portion of such Security shall be deemed (so
far as may be) to be the portion selected for redemption. Securities which have
been converted during a selection of Securities to be redeemed shall be treated
by the Trustee as Outstanding for the purpose of such selection.



                                      -57-

<PAGE>   66

            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, unless a shorter period is specified in the Securities to be redeemed, to
each Holder of Securities to be redeemed, at its address appearing in the
Security Register.

            All notices of redemption shall state:

            (1) the Redemption Date,

            (2) the Redemption Price (including accrued interest, if any),

            (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,

            (6) if applicable, the conversion price, that the date on which the
right to convert the principal of the Securities or the portions thereof to be
redeemed will terminate will be the Redemption Date and the place or places
where such Securities may be surrendered for conversion, and



                                      -58-

<PAGE>   67

            (7) 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.

            On or 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.

            If any Security called for redemption is converted, any money
deposited with the Trustee or with a Paying Agent or so segregated and held in
trust for the redemption of such Security shall (subject to the right of any
Holder of such Security to receive interest as provided in the last paragraph of
Section 307) be paid to the Company on Company Request, or if then held by the
Company, shall be discharged from such trust.

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 its 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 



                                      -59-

<PAGE>   68

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

                                  SINKING FUNDS

SECTION 1201. 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 1202.
Each sinking fund payment shall be applied to the redemption of Securities as
provided for by the terms of such Securities.

SECTION 1202. 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 1203. 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 1202 and will also deliver to the Trustee any Securities to be so
delivered. Not less than 30 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



                                      -60-

<PAGE>   69

redemption of such Securities shall be made upon the terms and in the manner
stated in Sections 1106 and 1107.

                                ARTICLE THIRTEEN

                       DEFEASANCE AND COVENANT DEFEASANCE

SECTION 1301. COMPANY'S OPTION TO EFFECT DEFEASANCE OR COVENANT DEFEASANCE.

            The Company may elect, at its option at any time, to have Section
1302 or Section 1303 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 1302 or 1303, 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 1302. 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 1304 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 1304 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, and, if applicable, Article Fourteen, (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 1303 applied to such Securities.

SECTION 1303. 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 Sections 1006
through 1007, inclusive, and any covenants provided pursuant to Section 301(19),
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
Sections 1006 through 1007, inclusive, and any such covenants provided pursuant
to Section 301(19), 901(2) or 901(7)), shall be deemed not to be or result



                                      -61-

<PAGE>   70

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 1304 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 1304. CONDITIONS TO DEFEASANCE OR COVENANT DEFEASANCE.

            The following shall be the conditions to the application of Section
1302 or Section 1303 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 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 1302 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



                                      -62

<PAGE>   71

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 1303 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 Officers'
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(5) and (6), 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).

            (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



                                      -63

<PAGE>   72

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 Officers'
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 1305. 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 1306, the Trustee and any such other trustee are referred to
collectively as the "Trustee") pursuant to Section 1304 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.

            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 1304 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 1304 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 1306. 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 1302 or 1303 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 1305 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



                                      -64-

<PAGE>   73

to the rights (if any) of the Holders of such Securities to receive such payment
from the money so held in trust.

                                ARTICLE FOURTEEN

                            CONVERSION OF SECURITIES

SECTION 1401. APPLICABILITY OF ARTICLE.

            The provisions of this Article shall be applicable to the Securities
of any series which are convertible into shares of Common Stock of the Company,
and the issuance of such shares of Common Stock upon the conversion of such
Securities, except as otherwise specified as contemplated by Section 301 for the
Securities of such series.

SECTION 1402. EXERCISE OF CONVERSION PRIVILEGE.

            In order to exercise a conversion privilege, the Holder of a
Security of a series with such a privilege shall surrender such Security to the
Company at the office or agency maintained for that purpose pursuant to Section
1002, accompanied by a duly executed conversion notice to the Company
substantially in the form set forth in Section 206 stating that the Holder
elects to convert such Security or a specified portion thereof. Such notice
shall also state, if different from the name and address of such Holder, the
name or names (with address) in which the certificate or certificates for shares
of Common Stock which shall be issuable on such conversion shall be issued.
Securities surrendered for conversion shall (if so required by the Company or
the Trustee) be duly endorsed by or accompanied by instruments of transfer in
forms satisfactory to the Company and the Trustee duly executed by the
registered Holder or its attorney duly authorized in writing; and Securities so
surrendered for conversion (in whole or in part) during the period from the
close of business on any Regular Record Date to the opening of business on the
next succeeding Interest Payment Date (excluding Securities or portions thereof
called for redemption during the period beginning at the close of business on a
Regular Record Date and ending at the opening of business on the first Business
Day after the next succeeding Interest Payment Date, or if such Interest Payment
Date is not a Business Day, the second such Business Day) shall also be
accompanied by payment in funds acceptable to the Company of an amount equal to
the interest payable on such Interest Payment Date on the principal amount of
such Security then being converted, and such interest shall be payable to such
registered Holder notwithstanding the conversion of such Security, subject to
the provisions of Section 307 relating to the payment of Defaulted Interest by
the Company. As promptly as practicable after the receipt of such notice and of
any payment required 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 setting forth the
terms of such series of Security, and the surrender of such Security in
accordance with such reasonable regulations as the Company may prescribe, the
Company shall issue and shall deliver, at the office or agency at which such
Security is surrendered, to such Holder or on its written order, a certificate
or certificates for the number of full shares of Common Stock issuable upon the
conversion of such Security (or specified portion thereof), in accordance with
the provisions of such Board Resolution, Officers' Certificate or supplemental
indenture, and cash as provided therein in respect of any fractional share of



                                      -65-

<PAGE>   74

such Common Stock otherwise issuable upon such conversion. Such conversion shall
be deemed to have been effected immediately prior to the close of business on
the date on which such notice and such payment, if required, shall have been
received in proper order for conversion by the Company and such Security shall
have been surrendered as aforesaid (unless such Holder shall have so surrendered
such Security and shall have instructed the Company to effect the conversion on
a particular date following such surrender and such Holder shall be entitled to
convert such Security on such date, in which case such conversion shall be
deemed to be effected immediately prior to the close of business on such date)
and at such time the rights of the Holder of such Security as such Security
Holder shall cease and the person or persons in whose name or names any
certificate or certificates for shares of Common Stock of the Company shall be
issuable upon such conversion shall be deemed to have become the Holder or
Holders of record of the shares represented thereby. Except as set forth above
and subject to the final paragraph of Section 307, no payment or adjustment
shall be made upon any conversion on account of any interest accrued on the
Securities (or any part thereof) surrendered for conversion or on account of any
dividends on the Common Stock of the Company issued upon such conversion.

            In the case of any Security which is converted in part only, upon
such conversion the Company shall execute and the Trustee shall authenticate and
deliver to or on the order of the Holder thereof, at the expense of the Company,
a new Security or Securities of the same series, of authorized denominations, in
aggregate principal amount equal to the unconverted portion of such Security.

SECTION 1403. NO FRACTIONAL SHARES.

            No fractional share of Common Stock of the Company shall be issued
upon conversions of Securities of any series. 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 shall be computed on the basis of
the aggregate principal amount of the Securities (or specified portions thereof
to the extent permitted hereby) so surrendered. If, except for the provisions of
this Section 1403, any Holder of a Security or Securities would be entitled to a
fractional share of Common Stock of the Company upon the conversion of such
Security or Securities, or specified portions thereof, the Company shall pay to
such Holder an amount in cash equal to the current market value of such
fractional share computed, (i) if such Common Stock is listed or admitted to
unlisted trading privileges on a national securities exchange or market, on the
basis of the last reported sale price regular way on such exchange or market on
the last trading day prior to the date of conversion upon which such a sale
shall have been effected, or (ii) if such Common Stock is not at the time so
listed or admitted to unlisted trading privileges on a national securities
exchange or market, on the basis of the average of the bid and asked prices of
such Common Stock in the over-the-counter market, on the last trading day prior
to the date of conversion, as reported by the National Quotation Bureau,
Incorporated or similar organization if the National Quotation Bureau,
Incorporated is no longer reporting such information, or if not so available,
the fair market price as determined by the Board of Directors. For purposes of
this Section, "trading day" shall mean each Monday, Tuesday, Wednesday, Thursday
and Friday other than any day on which the Common Stock is not traded on the
Nasdaq National Market, or if the Common Stock is not traded on the Nasdaq
National Market, on the principal exchange or market on which the Common Stock
is traded or quoted.



                                      -67-

<PAGE>   75

SECTION 1404. ADJUSTMENT OF CONVERSION PRICE.

            The conversion price of Securities of any series that is convertible
into Common Stock of the Company shall be adjusted for any stock dividends,
stock splits, reclassifications, combinations or similar transactions in
accordance with the terms of the supplemental indenture or Board Resolutions
setting forth the terms of the Securities of such series.

            Whenever the conversion price is adjusted, the Company shall compute
the adjusted conversion price in accordance with terms of the applicable Board
Resolution or supplemental indenture and shall prepare an Officers' Certificate
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 each office or agency maintained for the purpose of conversion of
Securities pursuant to Section 1002 and, if different, with the Trustee. The
Company shall forthwith cause a notice setting forth the adjusted conversion
price to be mailed, first class postage prepaid, to each Holder of Securities of
such series at its address appearing on the Security Register and to any
conversion agent other than the Trustee.

SECTION 1405. NOTICE OF CERTAIN CORPORATE ACTIONS.

            In case:

            (1) the Company shall declare a dividend (or any other distribution)
on its Common Stock payable otherwise than in cash out of its retained earnings
(other than a dividend for which approval of any shareholders of the Company is
required) that would require an adjustment pursuant to Section 1404; or

            (2) the Company shall authorize the granting to all or substantially
all of the holders of its Common Stock of rights, options or warrants to
subscribe for or purchase any shares of capital stock of any class or of any
other rights (other than any such grant for which approval of any shareholders
of the Company is required); or

            (3) 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, merger or share exchange to which the Company is
a party and for which approval of any shareholders of the Company is required),
or of the sale of all or substantially all of the assets of the Company; or

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

then the Company shall cause to be filed with the Trustee, 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
(1) or (2) above) prior to the applicable record date hereinafter specified, a
notice stating (i) the date on which a record is to be taken for the purpose of
such dividend, distribution, rights, options 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, options or warrants are to be
determined, or (ii) the date on which such reclassification, consolidation,
merger, share exchange, sale, dissolution,



                                      -67-

<PAGE>   76

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
deliverable upon such reclassification, consolidation, merger, share exchange,
sale, dissolution, liquidation or winding up. If at any time the Trustee shall
not be the conversion agent, a copy of such notice shall also forthwith be filed
by the Company with the Trustee.

SECTION 1406. RESERVATION OF SHARES OF COMMON STOCK.

            The Company shall at all times reserve and keep available, free from
preemptive 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 of the Company then issuable upon the conversion of all outstanding
Securities of any series that has conversion rights.

SECTION 1407. PAYMENT OF CERTAIN TAXES UPON CONVERSION.

            Except as provided in the next sentence, the Company will pay any
and all taxes that may be payable in respect of the issue or delivery of shares
of its 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 its 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 1408. NONASSESSABILITY.

            The Company covenants that all shares of its Common Stock which may
be issued upon conversion of Securities will upon issue in accordance with the
terms hereof be duly and validly issued and fully paid and nonassessable.

SECTION 1409. PROVISION IN CASE OF CONSOLIDATION, MERGER OR SALE OF ASSETS.

            In case of any consolidation or merger of the Company with or into
any other Person, any merger of another Person with or 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 any conveyance, sale, transfer or lease 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 Security of a series then Outstanding that is convertible into Common Stock
of the Company shall have the right thereafter (which right shall be the
exclusive conversion right thereafter available to said Holder), during the
period such Security shall be convertible, to convert such Security only into
the kind and amount of securities, cash and other property receivable upon such
consolidation, merger, conveyance, sale, transfer or lease 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, conveyance,
sale, transfer or lease, assuming such holder of Common Stock of the Company (i)



                                      -68-

<PAGE>   77

is not a Person with which the Company consolidated or merged with or into or
which merged into or with the Company or to which such conveyance, sale,
transfer or lease was made, as the case may be (a "Constituent Person"), or an
Affiliate of a Constituent Person and (ii) 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, conveyance, sale, transfer
or lease (provided that if the kind or amount of securities, cash and other
property receivable upon such consolidation, merger, conveyance, sale, transfer,
or lease is not the same for each share of Common Stock of the Company held
immediately prior to such consolidation, merger, conveyance, sale, transfer or
lease by others than a Constituent Person or an Affiliate thereof and in respect
of which such rights of election shall not have been exercised ("Non-electing
Share"), then for the purpose of this Section 1409 the kind and amount of
securities, cash and other property receivable upon such consolidation, merger,
conveyance, sale, transfer or lease by the holders of 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 or in accordance with the terms of
the supplemental indenture or Board Resolutions setting forth the terms of such
adjustments. The above provisions of this Section 1409 shall similarly apply to
successive consolidations, mergers, conveyances, sales, transfers or leases.
Notice of the execution of such a supplemental indenture shall be given by the
Company to the Holder of each Security of a series that is convertible into
Common Stock of the Company as provided in Section 106 promptly upon such
execution.

            Neither the Trustee nor any conversion agent, if any, shall be under
any responsibility to determine the correctness of any provisions contained in
any such supplemental indenture relating either to the kind or amount of shares
of stock or other securities or property or cash receivable by Holders of
Securities of a series convertible into Common Stock of the Company upon the
conversion of their Securities after any such consolidation, merger, conveyance,
transfer, sale or lease or to any such adjustment, but may accept as conclusive
evidence of the correctness of any such provisions, and shall be protected in
relying upon, an Opinion of Counsel with respect thereto, which the Company
shall cause to be furnished to the Trustee upon request.

SECTION 1410. DUTIES OF TRUSTEE REGARDING CONVERSION.

            Neither the Trustee nor any conversion agent shall at any time be
under any duty or responsibility to any Holder of Securities of any series that
is convertible into Common Stock of the Company to determine whether any facts
exist 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, whether herein or in any supplemental indenture, any
resolutions of the Board of Directors or written instrument executed by one or
more officers of the Company provided to be employed in making the same. Neither
the Trustee nor any conversion agent shall be accountable with respect to the
validity or value (or the kind or amount) of any shares of Common Stock of the
Company, or of any securities or property, which may at any time be issued or
delivered upon the conversion of any Securities and neither the Trustee nor any
conversion agent makes any representation with respect thereto. Subject to the
provisions of Section 601, neither the Trustee nor any conversion agent shall be
responsible for any failure of the Company to issue, transfer or deliver any
shares of its Common Stock or stock



                                      -69-

<PAGE>   78

certificates or other securities or property 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 Fourteen or in the applicable supplemental
indenture, resolutions of the Board of Directors or written instrument executed
by one or more duly authorized officers of the Company.

SECTION 1411. REPAYMENT OF CERTAIN FUNDS UPON CONVERSION.

            Any funds which at any time shall have been deposited by the Company
or on its behalf with the Trustee or any other paying agent for the purpose of
paying the principal of, and premium, if any, and interest, if any, on any of
the Securities (including, but not limited to, funds deposited for the sinking
fund referred to in Article Twelve hereof and funds deposited pursuant to
Article Thirteen hereof) and which shall not be required for such purposes
because of the conversion of such Securities as provided in this Article
Fourteen shall after such conversion be repaid to the Company by the Trustee
upon the Company's written request.

                                 ARTICLE FIFTEEN

                           SUBORDINATION OF SECURITIES

SECTION 1501. AGREEMENT OF SUBORDINATION.

            Except as otherwise provided in a supplemental indenture or pursuant
to Section 301 hereof, the Company covenants and agrees, and each Holder of
Securities issued hereunder by his acceptance thereof likewise covenants and
agrees, that all Securities shall be issued subject to the provisions of this
Article Fifteen; and each Person holding any Security, whether upon original
issue or upon transfer, assignment or exchange thereof, accepts and agrees to be
bound by such provisions.

            The payment of the principal of, premium, if any, and interest on
all Securities (including, but not limited to, the redemption price with respect
to the Securities called for redemption in accordance with Article Eleven as
provided in this Indenture) issued hereunder shall, to the extent and in the
manner hereinafter set forth, be subordinated and subject in right of payment to
the prior payment in full of all Senior Indebtedness, whether outstanding at the
date of this Indenture or thereafter incurred.

            No provision of this Article Fifteen shall prevent the occurrence of
any default or Event of Default hereunder.

SECTION 1502. PAYMENTS TO HOLDERS.

            No payment shall be made with respect to the principal of, or
premium, if any, or interest on the Securities (including, but not limited to,
the redemption price with respect to the Securities to be called for redemption
in accordance with Article Eleven as provided in this Indenture), except
payments and distributions made by the Trustee as permitted by the first or
second paragraph of Section 1505, if:



                                      -70-

<PAGE>   79

                        (i) a default in the payment of principal, premium,
            interest, rent or other obligations due on any Senior Indebtedness
            occurs and is continuing (or, in the case of Senior Indebtedness for
            which there is a period of grace, in the event of such a default
            that continues beyond the period of grace, if any, specified in the
            instrument or lease evidencing such Senior Indebtedness), unless and
            until such default shall have been cured or waived or shall have
            ceased to exist; or

                        (ii) a default, other than a payment default, on a
            Designated Senior Indebtedness occurs and is continuing that then
            permits holders of such Designated Senior Indebtedness to accelerate
            its maturity and the Trustee receives a notice of the default (a
            "Payment Blockage Notice") from a Representative or holder of
            Designated Senior Indebtedness or the Company.

            If the Trustee receives any Payment Blockage Notice pursuant to
clause (ii) above, no subsequent Payment Blockage Notice shall be effective for
purposes of this Section unless and until (A) at least 365 days shall have
elapsed since the initial effectiveness of the immediately prior Payment
Blockage Notice, and (B) all scheduled payments of principal, premium, if any,
and interest on the Securities that have come due have been paid in full in
cash. No nonpayment default that existed or was continuing on the date of
delivery of any Payment Blockage Notice to the Trustee shall be, or be made, the
basis for a subsequent Payment Blockage Notice.

            The Company may and shall resume payments on and distributions in
respect of the Securities upon the earlier of:

            (1) the date upon which the default is cured or waived or ceases to
exist, or

            (2) in the case of a default referred to in clause (ii) above, 179
days pass after notice is received if the maturity of such Designated Senior
Indebtedness has not been accelerated,

unless this Article Fifteen otherwise prohibits the payment or distribution at
the time of such payment or distribution.

            Upon any payment by the Company, or distribution of assets of the
Company of any kind or character, whether in cash, property or securities, to
creditors upon any dissolution or winding-up or liquidation or reorganization of
the Company, whether voluntary or involuntary or in bankruptcy, insolvency,
receivership or other proceedings, all amounts due or to become due upon all
Senior Indebtedness shall first be paid in full in cash or other payment
satisfactory to the Senior Indebtednesss of such Senior Indebtedness, or payment
thereof in accordance with its terms provided for in cash or other payment
satisfactory to the Senior Indebtednesss of such Senior Indebtedness before any
payment is made on account of the principal of, premium, if any, or interest on
the Securities (except payments made pursuant to Article Four from monies
deposited with the Trustee pursuant thereto prior to commencement of proceedings
for such dissolution, winding-up, liquidation or reorganization); and upon any
such dissolution or winding-up or liquidation or reorganization of the Company
or bankruptcy, insolvency, receivership or other proceeding, any payment by the
Company, or distribution of assets of the Company of any kind or character,
whether in cash, property or securities, to which the Holders of the Securities
or the Trustee would be entitled, except for the provision of this Article
Fifteen, shall



                                      -71-

<PAGE>   80

(except as aforesaid) be paid by the Company or by any receiver, trustee in
bankruptcy, liquidating trustee, agent or other Person making such payment or
distribution, or by the Holders of the Securities or by the Trustee under this
Indenture if received by them or it, directly to the holders of Senior
Indebtedness (pro rata to such holders on the basis of the respective amounts of
Senior Indebtedness held by such holders, or as otherwise required by law or a
court order) or their representative or representatives, or to the trustee or
trustees under any indenture pursuant to which any instruments evidencing any
Senior Indebtedness may have been issued, as their respective interests may
appear, to the extent necessary to pay all Senior Indebtedness in full, in cash
or other payment satisfactory to the holders of such Senior Indebtedness, after
giving effect to any concurrent payment or distribution to or for the holders of
Senior Indebtedness, before any payment or distribution is made to the Holders
of the Securities or to the Trustee.

            For purposes of this Article Fifteen, the words, "cash, property or
securities" shall not be deemed to include shares of stock of the Company as
reorganized or readjusted, or securities of the Company or any other corporation
provided for by a plan of reorganization or readjustment, the payment of which
is subordinated at least to the extent provided in this Article Fifteen with
respect to the Securities to the payment of all Senior Indebtedness which may at
the time be outstanding; provided that (i) the Senior Indebtedness is assumed by
the new corporation, if any, resulting from any reorganization or readjust ment,
and (ii) the rights of the holders of Senior Indebtedness (other than leases
which are not assumed by the Company or the new corporation, as the case may be)
are not, without the consent of such Holders, altered by such reorganization or
readjustment. The consolidation of the Company with, or the merger of the
Company into, another corporation or the liquidation or dissolution of the
Company following the conveyance or transfer of its property as an entirety, or
substantially as an entirety, to another corporation upon the terms and
conditions provided for in Article Eight shall not be deemed a dissolution,
winding-up, liquidation or reorganization for the purposes of this Section 1502
if such other corporation shall, as a part of such consolidation, merger,
conveyance or transfer, comply with the conditions stated in Article Eight.

            In the event of the acceleration of the Securities because of an
Event of Default, no payment or distribution shall be made to the Trustee or any
Holder of Securities in respect of the principal of, premium, if any, or
interest on the Securities (including, but not limited to, the redemption price
with respect to the Securities called for redemption in accordance with Article
Eleven as provided in this Indenture), except payments and distributions made by
the Trustee as permitted by the first or second paragraph of Section 1505, until
all Senior Indebtedness has been paid in full in cash or other payment
satisfactory to the holders of Senior Indebtedness or such acceleration is
rescinded in accordance with the terms of this Indenture. If payment of the
Securities is accelerated because of an Event of Default, the Company shall
promptly notify holders of Senior Indebtedness of such acceleration.

            In the event that, notwithstanding the foregoing provisions, any
payment or distribution of assets of the Company of any kind or character,
whether in cash, property or securities (including, without limitation, by way
of setoff or otherwise), prohibited by the foregoing, shall be received by the
Trustee or the Holders of the Securities before all Senior Indebtedness is paid
in full in cash or other payment satisfactory to the holders of such Senior
Indebtedness, or provision is made for such payment thereof in accordance with
its terms in cash or other payment satisfactory to the holders of such Senior



                                      -72-

<PAGE>   81

Indebtedness, such payment or distribution shall be held in trust for the
benefit of and shall be paid over or delivered to the holders of Senior
Indebtedness or their representative or representatives, or to the trustee or
trustees under any indenture pursuant to which any instruments evidencing any
Senior Indebtedness may have been issued, as their respective interests may
appear, as calculated by the Company, for application to the payment of all
Senior Indebtedness remaining unpaid to the extent necessary to pay all Senior
Indebtedness in full in cash or other payment satisfactory to the holders of
such Senior Indebtedness, after giving effect to any concurrent payment or
distribution to or for the holders of such Senior Indebtedness.

            Nothing in this Section 1502 shall apply to claims of, or payments
to, the Trustee under or pursuant to Section 607. This Section 1502 shall be
subject to the further provisions of Section 1505.

SECTION 1503. SUBROGATION OF SECURITIES.

            Subject to the payment in full of all Senior Indebtedness, the
rights of the Holders of the Securities shall be subrogated to the extent of the
payments or distributions made to the holders of such Senior Indebtedness
pursuant to the provisions of this Article Fifteen (equally and ratably with the
holders of all indebtedness of the Company which by its express terms is
subordinated to other indebtedness of the Company to substantially the same
extent as the Securities are subordinated and is entitled to like rights of
subrogation) to the rights of the holders of Senior Indebtedness to receive
payments or distributions of cash, property or securities of the Company
applicable to the Senior Indebtedness until the principal, premium, if any, and
interest on the Securities shall be paid in full; and, for the 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 Fifteen, and no payment over pursuant to the provisions of this Article
Fifteen, to or for the benefit of the holders of Senior Indebtedness by Holders
of the Securities or the Trustee, shall, as between the Company, its creditors
other than holders of Senior Indebtedness, and the Holders of the Securities, be
deemed to be a payment by the Company to or on account of the Senior
Indebtedness; and no payments or distributions of cash, property or securities
to or for the benefit of the Holders of the Securities pursuant to the
subrogation provisions of this Article Fifteen, which would otherwise have been
paid to the holders of Senior Indebtedness shall be deemed to be a payment by
the Company to or for the account of the Securities. It is understood that the
provisions of this Article Fifteen are and are intended solely for the purposes
of defining the relative rights of the Holders of the Securities, on the one
hand, and the holders of the Senior Indebtedness, on the other hand.

            Nothing contained in this Article Fifteen or elsewhere in this
Indenture or in the Securities is intended to or shall impair, as among the
Company, its creditors other than the 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 is intended to or
shall affect the relative rights of the Holders of the Securities and creditors
of the Company other than the holders of the Senior Indebtedness, nor shall
anything herein or therein 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 Fifteen
of the holders



                                      -73-

<PAGE>   82

of Senior Indebtedness in respect of cash, property or securities of the Company
received upon the exercise of any such remedy.

            Upon any payment or distribution of assets of the Company referred
to in this Article Fifteen, 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 made by any court of competent jurisdiction in which such bankruptcy,
dissolution, winding-up, liquidation or reorganization proceedings are pending,
or a certificate of the receiver, trustee in bankruptcy, liquidating trustee,
agent or other person making such payment or distribution, delivered to the
Trustee or to the Holders of the Securities, for the purpose of ascertaining the
persons entitled to participate in such distribution, the holders of the Senior
Indebtedness and other indebtedness of the Company, the amount thereof or
payable thereon and all other facts pertinent thereto or to this Article
Fifteen.

SECTION 1504. AUTHORIZATION TO EFFECT SUBORDINATION.

            Each Holder of a Security by the Holder's acceptance thereof
authorizes and directs the Trustee on the Holder's behalf to take such action as
may be necessary or appropriate to effectuate the subordination as provided in
this Article Fifteen and appoints the Trustee to act as the Holder's
attorney-in-fact for any and all such purposes. If the Trustee does not file a
proper proof of claim or proof of debt in the form required in any proceeding
referred to in Section 503 hereof at least 30 days before the expiration of the
time to file such claim, the holders of any Senior Indebtedness or their
representatives are hereby authorized to file an appropriate claim for and on
behalf of the Holders of the Securities.

SECTION 1505. NOTICE TO TRUSTEE.

            The Company shall give prompt written notice in the form of an
Officers' Certificate to a Responsible Officer of the Trustee and to any Paying
Agent of any fact known to the Company which would prohibit the making of any
payment of monies to or by the Trustee or any Paying Agent in respect of the
Securities pursuant to the provisions of this Article Fifteen. Notwithstanding
the provisions of this Article Fifteen 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 of monies to or by the Trustee in
respect of the Securities pursuant to the provisions of this Article Fifteen,
unless and until a Responsible Officer of the Trustee shall have received
written notice thereof at the Corporate Trust Office from the Company (in the
form of an Officers' Certificate) or a Representative or a Holder or Holders of
Senior Indebtedness or from any trustee thereof; and before 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
that if on a date not fewer than one Business Day prior to the date upon which
by the terms hereof any such monies may become payable for any purpose
(including, without limitation, the payment of the principal of, or premium, if
any, or interest on any Security) the Trustee shall not have received, with
respect to such monies, the notice provided for in this Section 4.5, then,
anything herein contained to the contrary notwithstanding, the Trustee shall
have full power and authority to receive such monies and to apply the same to
the purpose for which they were received, and shall not be affected by any
notice to the contrary which may be received by it on or after such prior date.



                                      -74-

<PAGE>   83

            Notwithstanding anything in this Article Fifteen to the contrary,
nothing shall prevent any payment by the Trustee to the Holders of monies
deposited with it pursuant to Section 401, and any such payment shall not be
subject to the provisions of Section 1500 or 1502.

            The Trustee, subject to the provisions of Section 601, shall be
entitled to rely on the delivery to it of a written notice by a Representative
or a person representing himself to be a holder of Senior Indebtedness (or a
trustee on behalf of such holder) to establish that such notice has been given
by a Representative or a holder of Senior Indebtedness or a trustee on behalf of
any such holder or holders. 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 Fifteen, 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 Fifteen, 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 1506. TRUSTEE'S RELATION TO SENIOR INDEBTEDNESS.

            The Trustee in its individual capacity shall be entitled to all the
rights set forth in this Article Fifteen in respect of any Senior Indebtedness
at any time held by it, to the same extent as any other holder of Senior
Indebtedness, and nothing in Section 613 or elsewhere in this Indenture shall
deprive the Trustee of any of its rights as such holder.

            With respect to the holders of Senior Indebtedness, the Trustee
undertakes to perform or to observe only such of its covenants and obligations
as are specifically set forth in this Article Fifteen, and no implied covenants
or obligations with respect to the holders of Senior Indebtedness shall be read
into this Indenture against the Trustee. The Trustee shall not be deemed to owe
any fiduciary duty to the holders of Senior Indebtedness and, subject to the
provisions of Section 601, the Trustee shall not be liable to any holder of
Senior Indebtedness if it shall pay over or deliver to Holders of Securities,
the Company or any other person money or assets to which any holder of Senior
Indebtedness shall be entitled by virtue of this Article Fifteen or otherwise.

SECTION 1507. NO IMPAIRMENT OF SUBORDINATION.

            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 which any such holder may have or
otherwise be charged with.



                                      -75-

<PAGE>   84

SECTION 1508. CERTAIN CONVERSIONS DEEMED PAYMENT.

            For the purposes of this Article Fifteen only, (1) the issuance and
delivery of junior securities upon conversion of Securities in accordance with
Article Fourteen shall not be deemed to constitute a payment or distribution on
account of the principal of (or premium, if any) or interest on Securities or on
account of the purchase or other acquisition of Securities, and (2) the payment,
issuance or delivery of cash (except in satisfaction of fractional shares
pursuant to Section 1403), property or securities (other than junior securities)
upon conversion of a Security shall be deemed to constitute payment on account
of the principal of such Security. For the purposes of this Section 1508, the
term "junior securities" means (a) shares of any stock of any class of the
Company, or (b) securities of the Company which are subordinated in right of
payment to all Senior Indebtedness which may be outstanding at the time of
issuance or delivery of such securities to substantially the same extent as, or
to a greater extent than, the Securities are so subordinated as provided in this
Article. Nothing contained in this Article Fifteen or elsewhere in this
Indenture or in the Securities is intended to or shall impair, as among the
Company, its creditors other than holders of Senior Indebtedness and the
Holders, the right, which is absolute and unconditional, of the Holder of any
Security to convert such Security in accordance with Article Fourteen.

SECTION 1509. ARTICLE APPLICABLE TO PAYING AGENTS.

            If 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 (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 the
first paragraph of Section 1505 shall not apply to the Company or any Affiliate
of the Company if it or such Affiliate acts as Paying Agent.

SECTION 1510. SENIOR INDEBTEDNESS ENTITLED TO RELY.

            The holders of Senior Indebtedness (including, without limitation,
Designated Senior Indebtedness) shall have the right to rely upon this Article
Fifteen, and no amendment or modification of the provisions contained herein
shall diminish the rights of such holders unless such holders shall have agreed
in writing thereto.



                                      -76-

<PAGE>   85

            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.

                                           QUANTUM CORPORATION


                                           By:
                                               ----------------------------
                                                 Title:


Attest:

- -----------------------------
Title:



                                           LASALLE NATIONAL BANK


                                           By:
                                              -----------------------------
                                                Title:




Attest:


- ----------------------------
Authorized Officer


                                      -77-


<PAGE>   1

                                                                     Exhibit 5.1






                                  July 22, 1997



Quantum Corporation
500 McCarthy Boulevard
Milpitas, California 95035

            RE:  QUANTUM CORPORATION REGISTRATION STATEMENT ON FORM S-3

Ladies and Gentlemen:

            At your request, we have examined the Registration Statement on Form
S-3 (No. 333-29525), including Amendment No. 1 thereto (the "Registration
Statement"), to be filed by Quantum Corporation, a Delaware corporation (the
"Company"), with the Securities and Exchange Commission in connection with the
registration pursuant to the Securities Act of 1933, as amended (the "Act"), of
the Company's debt securities (the "Debt Securities") and shares of the
Company's Common Stock, $0.01 par value per share (the "Common Stock"), with an
aggregate offering price of up to $450,000,000 or the equivalent thereof in one
or more foreign currencies or composite currencies. The Debt Securities and the
Common Stock are to be sold from time to time as set forth in the Registration
Statement, the Prospectus contained therein (the "Prospectus") and the
supplements to the Prospectus (the "Prospectus Supplements"). The Debt
Securities may be either senior debt securities (the "Senior Debt Securities")
or subordinated debt securities (the "Subordinated Debt Securities"). The Senior
Debt Securities are to be issued pursuant to a Senior Indenture, which has been
filed as an exhibit to the Registration Statement (the "Senior Indenture"), to
be entered into between the Company and LaSalle National Bank, as Trustee (the
"Senior Trustee"). The Subordinated Debt Securities are to be issued pursuant to
a Subordinated Indenture, which has been filed as an exhibit to the Registration
Statement (the "Subordinated Indenture", together with the Senior Indenture, the
"Indentures"), to be entered into between the Company and LaSalle National Bank,
as Trustee (the "Subordinated Trustee"). The shares of Common Stock and Debt
Securities are to be sold pursuant to an Underwriting Agreement in substantially
the form filed as an exhibit to the Registration Statement, or any
post-effective amendment thereto, or as an exhibit to a filing incorporated by
reference therein. The Debt Securities are to be issued in the forms of Debt
Securities included in the Indentures filed as exhibits to the Registration
Statement.

            We have examined instruments, documents and records which we deemed
relevant and necessary for the basis of our opinion hereinafter expressed. In
such examination, we have assumed (a) the authenticity of original documents and
the genuineness of all signatures, (b) the 



<PAGE>   2

Quantum Corporation
July 22, 1997
Page 2


conformity to the originals of all documents submitted to us as copies and (c)
the truth, accuracy and completeness of the information, representations and
warranties contained in the records, documents, instruments and certificates we
have reviewed.




            Based on such examination, we are of the opinion that:

                        1. When the issuance of Senior Debt Securities has been
            duly authorized by appropriate corporate action and the Senior Debt
            Securities, in the form included in the Senior Indenture filed as an
            exhibit to the Registration Statement, have been duly completed,
            executed, authenticated and delivered in accordance with the Senior
            Indenture and sold pursuant to the Underwriting Agreement and as
            described in the Registration Statement, any amendment thereto, the
            Prospectus and any Prospectus Supplement relating thereto, the
            Senior Debt Securities will be legal, valid and binding obligations
            of the Company, entitled to the benefits of the Senior Indenture.

                        2. When the issuance of Subordinated Debt Securities has
            been duly authorized by appropriate corporate action and the
            Subordinated Debt Securities, in the form included in the
            Subordinated Indenture filed as an exhibit to the Registration
            Statement, have been duly completed, executed, authenticated and
            delivered in accordance with the Subordinated Indenture and sold
            pursuant to the Underwriting Agreement and as described in the
            Registration Statement, any amendment thereto, the Prospectus and
            any Prospectus Supplement relating thereto, the Subordinated Debt
            Securities will be legal, valid and binding obligations of the
            Company, entitled to the benefits of the Subordinated Indenture.

                        3. When the issuance of the shares of Common Stock has
            been duly authorized by appropriate corporate action and the shares
            of Common Stock have been duly issued, sold and delivered in
            accordance with the Underwriting Agreement and as described in the
            Registration Statement, any amendment thereto, the Prospectus and
            any Prospectus Supplement relating thereto, the shares of Common
            Stock will be legally issued, fully paid and nonassessable.

            Our opinion that any document is legal, valid and binding is
qualified as to:

                        (a) limitations imposed by bankruptcy, insolvency,
            reorganization, arrangement, fraudulent conveyance, moratorium or
            other laws relating to or affecting the rights of creditors
            generally; and

                        (b) general principles of equity, including without
            limitation, concepts of materiality, reasonableness, good faith and
            fair dealing, and the possible unavailability of 



<PAGE>   3

Quantum Corporation
July 22, 1997
Page 3



            specific performance or injunctive relief, and limitation of rights
            of acceleration regardless of whether such enforceability is
            considered in a proceeding in equity or at law.

            We hereby consent to the filing of this opinion as an exhibit to the
above-referenced Registration Statement and the use of our name wherever it
appears in the Registration Statement, the Prospectus, the Prospectus
Supplement, and in any amendment or supplement thereto. In giving such consent,
we do not believe that we are "experts" within the meaning of such term used in
the Act or the rules and regulations of the Securities and Exchange Commission
issued thereunder with respect to any part of the Registration Statement,
including this opinion as an exhibit or otherwise.

                                 Very truly yours,

                                 WILSON SONSINI GOODRICH & ROSATI
                                 Professional Corporation



<PAGE>   1
                                                                   EXHIBIT 23.1

     CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS 
   
     We consent to the reference to our firm under the caption "Experts" in the
Amendment No. 1 to the Registration Statement (Form S-3, no. 333-29525) and
related Prospectus of Quantum Corporation for the registration of debt
securities, common stock and rights and to the incorporation by reference
therein of our report dated April 28, 1997 with respect to the consolidated
financial statements and schedule of Quantum Corporation included in its Annual
Report (Form 10-K) for the year ended March 31, 1997, filed with the Securities
and Exchange Commission.

                                              /s/ Ernst & Young LLP

Palo Alto, California
July 21, 1997
    

<PAGE>   1
                                                                    EXHIBIT 25.1

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                            -----------------------

                                   FORM T-1

                  STATEMENT OF ELIGIBILITY AND QUALIFICATION
                  UNDER THE TRUST INDENTURE ACT OF 1939 OF A
                   CORPORATION DESIGNATED TO ACT AS TRUSTEE
                            -----------------------

                             LASALLE NATIONAL BANK
              (Exact name of trustee as specified in its charter)

                                  36-1521370
                               (I.R.S. Employer
                              Identification No.)

               135 South LaSalle Street, Chicago, Illinois 60603
              (Address of principal executive offices) (Zip Code)

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

                              M. ROBERT K. QUINN
                   Senior Vice President and General Counsel
                           Telephone: (312) 904-2010
                           135 South LaSalle Street
                            Chicago, Illinois 60603
           (Name, address and telephone number of agent for service)

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

                             QUANTUM CORPORATION
              (Exact name of obligor as specified in its charter)

                Delaware                               94-2665054
      (State or other jurisdiction                  (I.R.S. Employer
     incorporation or organization)                Identification No.) 

        500 McCarthy Boulevard
          Milpitas, California
             (408) 894-4000                               95035

(Address of Principal Executive Offices)                (Zip Code)

                             -----------------------
                             Senior Debt Securities
                       (Title of the 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.

            1.    Comptroller of the Currency, Washington D.C.

            2.    Federal Deposit Insurance Corporation, Washington, D.C.

            3.    The Board of Governors of the Federal Reserve Systems,
                  Washington, D.C.

      (b)   Whether it is authorized to exercise corporate trust powers.

                  Yes.

ITEM 2.     AFFILIATIONS WITH OBLIGOR AND UNDERWRITERS.

If the obligor or any underwriter for the obligor is an affiliate of the
trustee, describe each such affiliation.

            Neither the obligor nor any underwriter for the obligor is an
affiliate of the trustee.

ITEM 3.     VOTING SECURITIES OF THE TRUSTEE.

Furnish the following information as to each class of voting securities of the
trustee:

                                Not applicable

ITEM 4.     TRUSTEESHIPS UNDER OTHER INDENTURES.

If the trustee is a trustee under another indenture under which any other
securities, or certificates of interest or participation in any other
securities, of the obligor are outstanding, furnish the following information:

            (a) Title of the securities outstanding under each other indenture.

                                Not applicable


            (b) A brief statement of the facts relied upon as a basis for the
            claim that no conflicting interest within the meaning of Section
            310(b)(1) of the Act arises as a result of the trusteeship under
            such other indenture, including a statement as to how the indenture
            securities will rank as compared with the securities issued under
            such other indenture.

                                Not applicable
<PAGE>   3

ITEM 5.     INTERLOCKING DIRECTORATES AND SIMILAR RELATIONSHIPS WITH THE OBLIGOR
OR UNDERWRITERS.

If the trustee or any of the directors or executive officers of the trustee is a
director, officer, partner, employee, appointee, or representative of the
obligor or of any underwriter for the obligor, identify each such person having
any such connection and state the nature of each such connection.

                                Not applicable

ITEM 6.     VOTING SECURITIES OF THE TRUSTEE OWNED BY THE OBLIGOR OR ITS 
OFFICIALS.

Furnish the following information as to the voting securities of the trustee
owned beneficially by the obligor and each director, partner and executive
officer of the obligor.

                                Not applicable

ITEM 7.     VOTING SECURITIES OF THE TRUSTEE OWNED BY UNDERWRITERS OR THEIR
OFFICIALS.

Furnish the following information as to the voting securities of the trustee
owned beneficially by each underwriter for the obligor and each director,
partner, and executive officer of each such underwriter.

                                Not applicable

ITEM 8. SECURITIES OF THE OBLIGOR OWNED OR HELD BY THE TRUSTEE.

Furnish the following information as to securities of the obligor owned
beneficially or held as collateral security for obligations in default by the
trustee:

                                Not applicable

ITEM 9.     SECURITIES OF THE UNDERWRITER OWNED OR HELD BY THE TRUSTEE.

If the trustee owns beneficially or holds as collateral security for obligations
in default any securities of an underwriter for the obligor, furnish the
following information as to each class of securities of such underwriter any of
which are so owned or held by the trustee.

                                Not applicable

ITEM 10. OWNERSHIP OR HOLDINGS BY THE TRUSTEE OF VOTING SECURITIES OF CERTAIN
AFFILIATES OR SECURITY HOLDERS OF THE OBLIGOR.

If the trustee owns beneficially or holds as collateral security for obligations
in default voting securities of a person who, to the knowledge of the trustee
(1) owns 10 percent or more of the voting securities of the obligor or (2) is an
affiliate, other than a subsidiary, of the obligor, furnish the following
information as to the voting securities of such person.

                                Not applicable

<PAGE>   4

ITEM 11. OWNERSHIP OR HOLDINGS BY THE TRUSTEE OF ANY SECURITIES OF A PERSON
OWNING 50 PERCENT OR MORE OF THE VOTING SECURITIES OF THE OBLIGOR.

If the trustee owns beneficially or holds as collateral security for obligations
in default any securities of a person who, to the knowledge of the trustee, owns
50 percent or more of the voting securities of the obligor, furnish the
following information as to each class of securities of such person any of which
are so owned or held by the trustee.

                                Not applicable

ITEM 12.    INDEBTEDNESS OF THE OBLIGOR TO THE TRUSTEE.

If the obligor is indebted to the trustee, furnish the following information.

                                Not applicable

ITEM 13.    DEFAULTS BY THE OBLIGOR.

a) State whether there is or has been a default with respect to the securities
under this indenture. Explain the nature of any such default.

                                Not applicable

b) If the trustee is a trustee under another indenture under which any other
securities, or certificates of interest or participation in any other
securities, of the obligor are outstanding, or is trustee for more than one
outstanding series of securities under the indenture, state whether there has
been a default under any such indenture or series, identify the indenture or
series affected, and explain the nature of any such default.

                                Not applicable

ITEM 14.    AFFILIATIONS WITH THE UNDERWRITERS.

If any underwriter is an affiliate of the trustee, describe each such
affiliation.

                                Not applicable

ITEM 15.    FOREIGN TRUSTEE.

Identify the order or rule pursuant to which the foreign trustee is authorized
to act as sole trustee under indentures qualified or to be qualified.

                                Not applicable

ITEM 16.    LIST OF EXHIBITS.

List below all exhibits filed as part of this statement of eligibility and
qualification.

            1.    A copy of the Articles of Association of LaSalle National Bank
                  now in effect.

            2.    A copy of the certificate of authority to commence business.

            3.    A copy of the authorization to exercise corporate trust
                  powers.

<PAGE>   5



            4.    A copy of the existing By-Laws of LaSalle National Bank.

            5.    Not applicable.

            6.    The consent of the trustee required by Section 321(b) of the
                  Trust Indenture Act of 1939.

            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.

<PAGE>   6

                                    SIGNATURE

Pursuant to the requirements of the Trust Indenture Act of 1939,the trustee,
LaSalle National Bank, a corporation organized and existing under the laws of
the United States of America, has duly caused this statement of eligibility and
qualification to be signed on its behalf by the undersigned, thereunto duly
authorized, all in the City of Chicago, State of Illinois, on the 7th day of
July, 1997.

                                       LASALLE NATIONAL BANK


                                       By:   /s/ Sarah H. Webb
                                             -----------------------------------
                                                 Sarah H. Webb
                                                 First Vice President

<PAGE>   7

                                    EXHIBIT 1

                             ARTICLES OF ASSOCIATION

<PAGE>   8

                                    ARTICLES
                                       OF
                                   ASSOCIATION


                          LA SALLE NATIONAL BANK (LOGO)


                             LA SALLE NATIONAL BANK
                                CHICAGO, ILLINOIS

<PAGE>   9

                                     (LOGO)
                              LaSalle National Bank


                             ARTICLES OF ASSOCIATION

      FIRST. The title of this association, which shall carry on the business of
banking under the laws of the United States shall be "LaSalle National Bank."

      SECOND. The place where the main banking house or office of this
association shall be located, its operations of discount and deposit carried on,
and its general business conducted, shall be Chicago, County of Cook, State of
Illinois.

      THIRD. The Board of Directors of this association shall consist of such
number of its shareholders, not less than five nor more than twenty-five, as
from time to time shall be determined by a majority of the votes to which all of
its shareholders are at the time entitled. A majority of the Board of Directors
shall be necessary to constitute a quorum for the transaction of business. The
Board of Directors, by vote of a majority of the full board, may, between annual
meetings of shareholders increase the membership of the Board where the number
of directors last elected by shareholders was 15 or less, by not more than two
members, and where the number of directors last elected by shareholders was 16
or more, by not more than four members and by a like vote appoint qualified
persons to fill the vacancies created thereby; provided that the number of
Directors shall at no time exceed twenty-five.

      FOURTH. The regular annual meeting of the shareholders of this association
shall be held at its main banking house, or other convenient place duly
authorized by the board of directors on such day of each year as is specified
therefor in the bylaws.

      FIFTH. The amount of capital stock which this association is authorized to
issue shall be Twenty Million Dollars ($20,000,000.00) divided into 2,000,000
shares of common capital stock of the par value of $10.00 each; but said capital
stock may be increased or decreased from time to time, in accordance with the
provisions of the laws of the United States.

      If the capital stock is increased by the sale of additional shares
thereof, other than to key officers and employees of the association upon the
exercise of options granted pursuant to the terms of a stock option plan then in
effect, as to which sales all pre-emptive rights are waived, each shareholder
shall be entitled to subscribe for such additional shares in proportion to the
number of shares of said capital stock owned by him at the time the increase is
authorized by the shareholders, unless another time subsequent to the date of
the shareholders' meeting is specified in a resolution adopted by the
shareholders at the time the increase is authorized. The board of directors
shall have the power to prescribe a reasonable period of time within which the
pre-emptive rights to subscribe to the new shares of capital stock may be
exercised.

      The association, at any time and from time to time, may authorize and
issue debt obligations, whether or not subordinated, without the approval of the
shareholders.

      SIXTH. The board of directors shall appoint one of its members president
of this association, who shall be chairman of the board, but the board of
directors may appoint a director in lieu of the president to be chairman of the
board, who shall perform such duties as may be designated by the board of
directors. The board of directors shall have the power to appoint one or more
vice presidents, a cashier and such other officers as may be required to
transact the business of this association; to fix the salaries to be paid to all
officers of this association; and to dismiss such officers, or any of them.

      The board of directors shall have the power to define the duties of
officers and employees of this association, to require bonds from them, and to
fix the penalty thereof; to regulate the manner in which directors shall be
elected

<PAGE>   10

or appointed, and to appoint judges of the election; to make all bylaws that it
may be lawful for them to make for the general regulation of the business of
this association and the management of its affairs; and generally to do and
perform all acts that it may be lawful for a board of directors to do and
perform.

      SEVENTH. This association shall have succession from the date of its
organization certificate until such time as it be dissolved by act of its
shareholders in accordance with the provisions of the banking laws of the United
States, or until its franchise becomes forfeited by reason of violation of law,
or until terminated by either a general or a special act of Congress, or until
its affairs be placed in the hands of a receiver and finally wound up by him.

      EIGHTH. The board of directors of this association, or any three or more
shareholders owning, in the aggregate, not less than ten per centum of the stock
of this association, may call a special meeting of shareholders at any time:
Provided, however, that, unless otherwise provided by law, not less than ten
days prior to the date fixed for any such meeting, a notice of the time, place,
and purpose of the meeting shall be given by first-class mail, postage prepaid,
to all shareholders of record of this association at their respective addresses
as shown upon the books of the association. These articles of association may be
amended at any regular or special meeting of the shareholders by the affirmative
vote of the shareholders owning at least a majority of the stock of this
association, subject to the provisions of the banking laws of the United States.
The notice of any shareholders' meeting, at which an amendment to the articles
of association of this association is to be considered, shall be given as
herein-above set forth.

      NINTH. Any person, his heirs, executors, or administrators, may be
indemnified or reimbursed by the association for reasonable expenses actually
incurred in connection with any action, suit, or proceeding, civil or criminal,
to which he or they shall be made a party by reason of his being or having been
a director, officer, or employee of the association or of any firm, corporation,
or organization which he served in any such capacity at the request of the
association: Provided, however, that no person shall be so indemnified or
reimbursed in relation to any matter in such action, suit, or proceeding as to
which he shall finally be adjudged to have been guilty of or liable for
negligence or wilful misconduct in the performance of his duties to the
association: And, provided further, that no person shall be so indemnified or
reimbursed in relation to any matter in such action, suit, or proceeding which
has been made the subject of a compromise settlement except with the approval of
a court of competent jurisdiction, or the holders of record of a majority of the
outstanding shares of the association, or the board of directors, acting by vote
of directors not parties to the same or substantially the same action, suit, or
proceeding, constituting a majority of the whole number of the directors. The
foregoing right of indemnification or reimbursement shall not be exclusive of
other rights to which such person, his heirs, executors, or administrators, may
be entitled as a matter of law.

                                   ********

May 17, 1982
Form No. 181, Rev 5/17/82 GW

<PAGE>   11

                                    EXHIBIT 2

                            CERTIFICATE OF AUTHORITY
                              TO COMMENCE BUSINESS


<PAGE>   12

                                STATE OF ILLINOIS

                                AUDITOR'S OFFICE

NO.  333                              (LOGO)

                         NATIONAL BANK TRUST CERTIFICATE

                                                 Springfield, FEBRUARY 15th 1928


      I, OSCAR NELSON, Auditor of Public Accounts of the State of Illinois, do
hereby certify that the NATIONAL BUILDERS BANK OF CHICAGO located at CHICAGO,
County of COOK and State of Illinois, a corporation organized under and by
authority of the statutes of the United States governing National Banks and
authority granted by the Federal Reserve Act for the purpose of accepting and
executing trusts, has this day deposited in this office, securities in the sum
of TWO HUNDRED THOUSAND Dollars, $200,000.00 of the character designated by
Section 6 of the Act of the Legislature of the State of Illinois entitled "An
Act to provide for and regulate the administration of trusts by trust
companies,"

      The said deposit is made for the benefit of the creditors of said NATIONAL
BUILDERS BANK OF CHICAGO under and by virtue of the provisions of the Act above
referred to and the said securities are now held by me in this office in my
official capacity as such Auditor of Public Accounts, for the uses and purposes
aforesaid.

      I further certify that by virtue of the Acts aforesaid, the NATIONAL
BUILDERS BANK OF CHICAGO is hereby authorized to accept and execute trusts and
receive deposits of trust funds under the provisions and limitations of "An Act
to provide for and regulate the administration of trusts in Illinois.


(SEAL)      IN TESTIMONY WHEREOF, I hereunto subscribe my name and affix the
            seal of my office, the day and year first above written.
 


                                        /s/ Oscar Nelson
                                        ----------------------------------------
                                        AUDITOR OF PUBLIC ACCOUNTS.
                                        STATE OF ILLINOIS.

<PAGE>   13

                                   NO. 13146.

                           TREASURY DEPARTMENT (LOGO)

                      OFFICE OF COMPTROLLER OF THE CURRENCY


                                          Washington, D.C., NOVEMBER 29, 1927.

      WHEREAS, by satisfactory evidence presented to the undersigned, it has
been made to appear that "NATIONAL BUILDERS BANK OF CHICAGO" in the CITY of
CHICAGO in the County of COOK and State of ILLINOIS has complied with all the
provisions of the Statutes of the United States, required to be complied with
before an association shall be authorized to commence the business of Banking;

      NOW THEREFORE I, J.W. MCINTOSH, Comptroller of the Currency, do hereby
certify that "NATIONAL BUILDERS BANK OF CHICAGO" in the CITY of CHICAGO in the
County of COOK and State of ILLINOIS is authorized to commence the business of
Banking as provided in Section Fifty one hundred and sixty nine of the Revised
Statutes of the United States.


(SEAL)      IN TESTIMONY WHEREOF witness my hand and Seal of (SEAL) office this
            TWENTY-NINTH day of NOVEMBER, 1927.




                                       /s/ J.W. McIntosh
                                       -----------------------------------------
                                       Comptroller of the Currency

<PAGE>   14

                    CERTIFICATE OF CHANGE OF CORPORATE TITLE

                                     (LOGO)

                                   NO. 13146.

                               TREASURY DEPARTMENT

                    OFFICE OF THE COMPTROLLER OF THE CURRENCY

                                                  WASHINGTON, D.C., MAY 1, 1940.


      WHEREAS, by satisfactory evidence presented to me, it appears that under
authority of sections 2, 3, and 4, of the Act of Congress approved May 1, 1886,
entitled "An Act to enable national banking associations to increase their
capital stock and to change their names or location," shareholders owning
two-thirds of the stock of the national banking association heretofore known
as-- "NATIONAL BUILDERS BANK OF CHICAGO," located in CHICAGO, County of COOK,
State of ILLINOIS, have voted to change the name of said association to--
"LASALLE NATIONAL BANK," and have complied with all the provisions of the said
Act relative to national banking associations changing their name.

      NOW, THEREFORE, IT IS HEREBY CERTIFIED, that the name of the said
association has been changed to-- "LASALLE NATIONAL BANK," and that such change
of name is hereby approved under authority conferred by said Act.


(SEAL)      IN TESTIMONY WHEREOF, witness my hand and seal of office this FIRST
            day of MAY, 1940.



                                       /s/
                                       -----------------------------------------
                                       ACTING Comptroller of the Currency.

<PAGE>   15

                                    EXHIBIT 3

                            AUTHORIZATION TO EXERCISE
                             CORPORATE TRUST POWERS


<PAGE>   16

                               BOARD OF GOVERNORS
                                     OF THE
                       FEDERAL RESERVE SYSTEM [LETTERHEAD]

                                   WASHINGTON


                                                                   May 9, 1940

LaSalle National Bank,
Chicago, Illinois.

Gentlemen:

      The Board of Governors of the Federal Reserve System has been officially
advised by the Comptroller of the Currency that on May 1, 1940, National
Builders Bank of Chicago, Chicago, Illinois, changed its title to LaSalle
National Bank, and accordingly there is enclosed herewith a certificate showing
that LaSalle National Bank has authority to exercise the fiduciary powers
enumerated therein.

      Kindly acknowledge receipt of this certificate.

                                Very truly yours,


                                       S. R. Carpenter
                                       -----------------------------------------
                                       S. R. Carpenter,
                                       Assistant Secretary.


Enclosure


<PAGE>   17

                               BOARD OF GOVERNORS
                                     OF THE
                             FEDERAL RESERVE SYSTEM
                                   WASHINGTON

      I, S. R. Carpenter, Assistant Secretary of the Board of Governors of the
Federal Reserve System (formerly known as the Federal Reserve Board), do hereby
certify that it appears from the records of the Board of Governors of the
Federal Reserve System that:

      (1) Pursuant to the authority vested in the Federal Reserve Board by an
Act of Congress approved December 23, 1913, known as the Federal Reserve Act, as
amended, the Federal Reserve Board on December 8, 1927, granted to National
Builders Bank of Chicago, Chicago, Illinois, the right to act, when not in
contravention of State or local law, as trustee, executor, administrator,
registrar of stocks and bonds, guardian of estates, assignee, receiver,
committee of estates of lunatics, or in any other fiduciary capacity in which
State banks, trust companies or other corporations which come into competition
with national banks are permitted to act under the laws of the State of
Illinois;

      (2) Under the provisions of an Act of Congress approved May 1, 1886,
National Builders Bank of Chicago, Chicago, Illinois, on May 1, 1940, changed
its title to LaSalle National Bank; and

      (3) By virtue of the foregoing, LaSalle National Bank, Chicago, Illinois,
has authority to act, when not in contravention of State or local law, as
trustee, executor, administrator, registrar of stocks and bonds, guardian of
estates, assignee, receiver, committee of estates of lunatics, or in any other
fiduciary capacity in which State banks, trust companies or other corporations
which come into competition with national banks are permitted to act under the
laws of the State of Illinois, subject to regulations prescribed by the Board of
Governors of the Federal Reserve System.

      IN WITNESS WHEREOF, I have hereunto subscribed my name and caused the seal
of the Board of Governors of the Federal Reserve System to be affixed at the
City of Washington in the District of Columbia.


                                       /s/ S. R. Carpenter
                                       -----------------------------------------
                                       Assistant Secretary.


Dated  May 9, 1940


<PAGE>   18

                                    EXHIBIT 4

                        BY-LAWS OF LA SALLE NATIONAL BANK

<PAGE>   19

                                     BYLAWS

                                       OF

                             LA SALLE NATIONAL BANK

                                CHICAGO, ILLINOIS


                          LA SALLE NATIONAL BANK (LOGO)


                    Organized Under the National Banking Laws
                              of the United States


<PAGE>   20

                                     BYLAWS

                                     of the

                             LA SALLE NATIONAL BANK

                (a National Banking Association which association
                      is herein referred to as the "bank")

                                    ARTICLE I

                            MEETINGS OF SHAREHOLDERS

      SECTION 1.1. ANNUAL MEETING. The regular annual meeting of the
shareholders for the election of directors and the transaction of whatever other
business may properly come before the meeting, shall be held at the main office
of the Bank, 135 South LaSalle Street, Chicago, Illinois, or such other place as
the Board of Directors may designate, at 9:00 A.M., on the third Wednesday of
March of each year. Notice of such meeting shall be mailed, postage prepaid, at
least ten days prior to the date thereof, addressed to each shareholder at his
address appearing on the books of the Bank. If for any cause, an election of
directors is not made on the said day, the Board of Directors shall order the
election to be held on some subsequent day as soon thereafter as practicable,
according to the provisions of law; and notice thereof shall be given in the
manner herein provided for the annual meeting.

      SECTION 1.2. SPECIAL MEETINGS. Except as otherwise specifically provided
by statute, special meetings of the shareholders may be called for any purpose
at anytime by the board of directors or by any three or more shareholders
owning, in the aggregate, not less than ten percent of the stock of the bank.
Every such special meeting, unless otherwise provided by law, shall be called by
mailing, postage pre-paid, not less than ten days prior to the date fixed for
such meeting, to each shareholder at his address appearing on the books of the
bank, a notice stating the purpose of the meeting.

      SECTION 1.3. NOMINATIONS FOR DIRECTOR. Nominations for election to the
board of directors may be made by the board of directors or by any shareholder
of any outstanding class of capital stock of the bank entitled to vote for the
election of directors. Nominations, other than those made by or on behalf of the
existing management of the bank, shall be made in writing and shall be delivered
or mailed to the president of the bank and to the Comptroller of the Currency,
Washington, D.C., not less than 14 days nor more than 50 days prior to any
meeting of shareholders called for the election of directors, provided, however,
that if less than 21 days' notice of the meeting is given to the shareholders,
such nomination shall be mailed or delivered to the president of the bank and to
the Comptroller of the Currency not later than the close of business on the
seventh day following the day on which the notice of meeting was mailed. Such
notification shall contain the following information to the extent known to the
notifying shareholder: (a) the name and address of each proposed nominee; (b)
the principal occupation of each proposed nominee; (c) the total number of
shares of capital stock of each proposed nominee; (d) the name and address of
the notifying shareholder; and (e) the number of shares of capital stock of the
bank owned by the notifying shareholder. Nominations not made in accordance
herewith, may, in his discretion, be disregarded by the chairman of the meeting,
and upon his instructions, the vote tellers may disregard all votes cast for
each such nominee.

      SECTION 1.4. JUDGES OF ELECTION. Every election of directors shall be
managed by three judges, who shall be appointed by the board of directors prior
lo the time of said election. The judges of election shall hold and conduct the
election at which they are appointed to serve; and after the election, they
shall file with the cashier a certificate under their hands, certifying the
result thereof and the names of the directors elected. The judges of election.
at the request of the chairman of the meeting, shall act as tellers of any other
vote by ballot taken at such meeting, and shall certify the result thereof.



                                        1

<PAGE>   21

      SECTION 1.5. PROXIES. Shareholders may vote at any meeting of the
shareholders by proxies duly authorized in writing, but no officer or employee
of this bank shall act as proxy. Proxies shall be valid only for one meeting, to
be specified therein, and any adjournments of such meeting. Proxies shall be
dated and shall be filed with the records of the meeting.

      SECTION 1.6. QUORUM. A majority of the outstanding capital stock,
represented in person or by proxy, shall constitute a quorum at any meeting of
shareholders, unless otherwise provided by law; but less than a quorum may
adjourn any meeting, from time to time, and the meeting may be held, as
adjourned, without further notice. A majority of the votes cast shall decide
every question or matter submitted to the shareholders at any meeting, unless
otherwise provided by law or by the articles of association.

                                   ARTICLE II

                                    DIRECTORS

      SECTION 2.1. BOARD OF DIRECTORS. The board of directors (hereinafter
referred to as the "board"), shall have power to manage and administer the
business affairs of the bank. Except as expressly limited by law, all corporate
powers of the bank shall be vested in and may be exercised by said board.

      SECTION 2.2. NUMBER. The board shall consist of not less than five or more
than twenty-five shareholders, the exact number within such minimum and maximum
limits to be fixed and determined from time to time by resolution of a majority
of the full board or by resolution of the shareholders at any meeting thereof;
provided, however, that a majority of the full board may not increase the number
of directors by more than two if the number of directors last elected by
shareholders was fifteen or less and by not more than four where the number of
directors last elected by shareholders was sixteen or more, provided that in no
event shall the number of directors exceed twenty-five.

      SECTION 2.3. ORGANIZATION MEETING. The cashier, upon receiving the
certificate of the judges, of the result of any election, shall notify the
directors-elect of their election and of the time at which they are required to
meet at the main office of the bank for the purpose of organizing the new board
and electing and appointing officers of the bank for the succeeding year. Such
meeting shall be appointed to be held on the day of election or as soon
thereafter as practicable, and, in any event, within thirty days thereof. If, at
the time fixed for such meeting, there shall not be a quorum present the
directors present may adjourn the meeting, from time to time, until a quorum is
obtained.

      SECTlON 2.4 REGULAR MEETINGS. The regular meetings of the board shall be
held, without notice, on the third Wednesday of each month at the main office.
When any regular meeting of the board falls upon a holiday, the meeting shall be
held on the next banking business day unless the board shall designate some
other day.

      SECTION 2.5 SPECIAL MEETINGS. Special meetings of the board may be called
by the chairman of the board, the president, or at the request of three or more
directors. Each member of the board shall be given notice stating the time and
place, by telegram, letter or in person, of each such special meeting.

      SECTION 2.6. QUORUM. A majority of the directors shall constitute a quorum
at any meeting, except when otherwise provided by law; but a less number may
adjourn any meeting from time to time, and the meeting may be held, as
adjourned, without further notice.

      SECTION 2.7. VACANCIES. When any vacancy occurs among the directors, the
remaining members of the board, in accordance with the laws of the United
States, may appoint a director to fill such vacancy at any regular meeting of
the board, or at a special meeting called for that purpose.



                                        2

<PAGE>   22

      SECTION 2.8. RETIREMENT POLICY. A retirement policy adopted by the board
of directors shall be applicable to directors who are not active officers of the
bank.

                                   ARTICLE III

                             COMMITTEES OF THE BOARD

      SECTION 3.1. EXECUTIVE COMMITTEE. There shall be an executive committee of
the board. The members of the executive committee shall be chosen by the board
from time to time, shall hold office during its pleasure, and shall consist of
the chairman of the board, the chairman of the executive committee selected by
the board, who may but need not be the same person designated to be president,
and the president, ex officio, and not less than seven additional members of the
board who shall not be active officers of the bank. It shall be the duty of this
committee to exercise such powers and perform such duties in respect to the
making of loans and discounts as shall from time to time be specified by
resolution of the board. During such periods as the board shall not be in
session, the executive committee shall have and may exercise all the powers of
the board except such as are by law or by these bylaws required to be exercised
only by the board. The executive committee may make rules for holding and
conducting its meetings and keep in the minute book of the bank a report of all
action taken which shall be submitted for approval at each regular meeting of
the board and the action of the board shall be recorded in the minutes of that
meeting. A quorum of the executive committee shall consist of not less than five
of its members, at least three of whom shall not be active officers of the bank.
The chairman of the board, or in his absence in the order named if present, the
chairman of the executive committee or the president, may designate any director
who is not an active officer of the bank, or a designated member, to serve as a
member of the executive committee at any specified meeting. Vacancies in the
executive committee at any time existing may be filled by appointment by the
board. The board may at anytime revise or change the membership and chairmanship
of the executive committee and make new or additional appointments thereto. The
chairman of the executive committee shall be ex officio a member of all
committees except the examining committee and the trust audit committee, and
shall have such other duties as may from time to time be assigned him by the
board.

      SECTION 3.2. OFFICERS' COMPENSATION COMMITTEE. There shall be an officers'
compensation committee of the board. The members of the officers' compensation
committee shall consist of the members ex officio provided for in other sections
of these bylaws and not less than three additional non-officer members of the
board who shall be appointed by the board each year at its first meeting after
the directors have been elected and qualified. It shall be the duty of this
committee to study the compensation of all officers of the bank and from time to
time report their recommendations to the board; and such other duties, if any,
as may from time to time be assigned to it by the board. A majority of the
committee, including at least two non-officer members, shall be necessary for
the committee to keep records of its action.

      SECTION 3.3. EXAMINING COMMITTEE. There shall be an examining committee of
the board. The members of the examining committee shall consist of the members
ex officio provided for in other sections of these bylaws, but exclusive of any
active officer of the bank and not less than three additional non-officer
members of the board who shall be appointed by the board each year at its first
meeting after the directors have been elected and qualified. It shall be the
duty of this committee to make an examination at least twice each year into the
affairs of the bank or to cause the examinations to be made by accountants (who
may be the bank's own accountants) responsible only to the board in such
examinations, and to report the result of such examinations in writing to the
board at the next regular meeting thereafter, or it may, at its sole discretion,
submit the reports of the national bank examiner or of the Chicago Clearing
House Association examination, with or without additional comments by the
committee itself, for, and in lieu of its personal examinations. Such reports
shall state whether the bank is in sound condition, whether adequate internal
audit controls and procedures are being maintained and shall recommend to the
board such changes in the manner of doing business or conducting the affairs of
the bank as shall be deemed advisable.



                                        3

<PAGE>   23

      SECTION 3.4. OTHER COMMITTEES. The board may appoint, from time to time,
from its own members, other committees of one or more persons, for such purposes
and with such powers as the board may determine.

                                   ARTICLE IV

                             OFFICERS AND EMPLOYEES

      SECTION 4.1. CHAIRMAN OF THE BOARD. The board shall appoint one of its
members to be chairman of the board. The chairman of the board shall supervise
the carrying out of the policies adopted or approved by the board. He shall have
general executive powers, as well as the specific powers conferred by these
bylaws. He shall be ex officio a member of all committees, except the examining
committee and the trust audit committee. He shall have general supervision and
direction of the business, affairs and personnel of the bank. He shall also have
and may exercise such further powers and duties as from time to time may be
conferred upon, or assigned to him by the board.

      SECTION 4.2 VICE CHAIRMAN OF THE BOARD. The board may appoint one of its
members to be vice chairman of the board. He shall perform such duties as may
from time to time be assigned to him by the board.

      SECTION 4.3. PRESIDENT. The board shall appoint one of its members to be
president of the bank. He shall be the chief executive officer and the chief
administrative officer of the bank and in the absence of the chairman of the
board, he shall preside at any meeting of the board at which he is present. The
president shall have general executive powers, and shall have and may exercise
any and all other powers and duties pertaining by law, regulation, or practice
to the office of president, or imposed by these bylaws. He shall be ex officio a
member of all committees, except the examining committee and trust audit
committee. He shall have general supervision of the business, affairs and
personnel of the bank and in the absence of the chairman of the board, shall
exercise the powers and perform the duties of the chairman of the board. He
shall also have and may exercise such further powers and duties as from time to
time may be conferred upon or assigned to him by the board.

      SECTION 4.4. SENIOR OFFICERS. The board may appoint one or more executive
vice presidents and one or more senior vice presidents. Each such senior officer
shall have such powers and duties as may be assigned to him by the board, the
chairman of the board, or the president.

      SECTION 4.5. VICE PRESIDENT. The board may appoint one or more vice
presidents. Each vice president shall have such powers and duties as may be
assigned to him by the board, the chairman of the board, or the president.

      SECTION 4.6. CASHIER. The board shall appoint a cashier who shall have
such powers and duties as may be assigned to him by the board, the chairman of
the board, or the president. The cashier shall be custodian of the corporate
seal, records, documents and papers of the bank. He shall provide for keeping of
proper records of all transactions of the bank.

      SECTION 4.7. SECRETARY. The board shall appoint a secretary who shall be
secretary of the bank. He shall also perform such duties as may be assigned to
him from time to time by the board. The board may appoint a secretary of the
board who shall keep accurate minutes of all meetings. He shall attend to the
giving of all notices; he shall also perform such other duties as may be
assigned to him from time to time by the board.

      SECTION 4.8. OTHER OFFICERS. The board may appoint one or more assistant
vice presidents, one or more trust officers, one or more assistant secretaries,
one or more assistant cashiers, and such other officers and attorneys-in-fact as
from time to time may appear to the board to be required or desirable to
transact the business of


                                        4

<PAGE>   24

the bank. Such officers, respectively, shall exercise such powers and perform
such duties as pertain to their several offices or as may be conferred upon or
assigned to them by the board the chairman of the board or the president.

      SECTION 4.9. CLERKS AND AGENTS. The chairman of the board, the president,
or any other active officer of the bank authorized by the chairman of the board,
or the president, may appoint and dismiss all or any paying tellers receiving
tellers note tellers, vault custodians, bookkeepers and other clerks, agents and
employees as they may deem advisable for the prompt and orderly transaction of
the business of the bank, define their duties, fix the salaries to be paid them
and the conditions of their employment.

      SECTION 4.10. RESPONSIBILITY FOR MONEYS, ETC. Each of the active officers
and clerks of this bank shall be responsible for all moneys, funds valuables and
property of every kind and description that may from time to time be entrusted
to his care or placed in his hands by the board or others, or that otherwise may
come into his possession as an active officer or clerk of this bank.

      SECTION 4.11. SURETY BONDS. All the active officers and clerks of this
bank may be covered by one of the blanket form bonds customarily written by the
surety companies, drawn for such an amount, and executed by such surety company,
as the board may from time to time require, and duly approve; or at the
discretion of the board, all such active officers and clerks shall, each for
himself, give such bond, with such security, and in such denominations as the
board may from time to time require and direct. All bonds approved by the board
shall assure the faithful and honest discharge of the respective duties of such
active officer or clerk and shall provide that such active officer or clerk
shall faithfully apply and account for all moneys, funds, valuables and property
of every kind and description that may from time to time come into his hands or
be entrusted to his care, and pay over and deliver the same to the order of the
board or to such other person or persons as may be authorized to demand and
receive the same.

      SECTION 4.12. TERM OF OFFICE - OFFICER DIRECTOR. The chairman of the
board, the vice chairman of the board and the president, together with any other
active officers who may be duly elected members of the board, shall hold their
respective offices for the current year for which the board (of which they shall
be members) was elected and until their successors are appointed, unless they
shall resign, be disqualified, or be removed; and any vacancy occurring in the
office of the chairman of the board, the vice chairman of the board, the
president, or in the board, shall, if required by these bylaws, be filled by the
remaining members.

      SECTION 4.13. TERM OF OFFICE - OFFICER. The executive vice presidents, the
senior vice presidents, the vice presidents, the assistant vice presidents, the
cashier, the secretary, the trust officers and all other officers and
attorneys-in-fact who are not duly elected members of the board, shall be
appointed to hold their offices, respectively, during the pleasure of the board.

                                   ARTICLE V

                               TRUST DEPARTMENT

      SECTION 5.1. TRUST DEPARTMENT. There shall be a department of the bank
known as the trust department which shall perform the fiduciary responsibilities
of the bank.

      SECTION 5.2. TRUST OFFICER. There shall be a senior vice president and
trust officer, or vice president and trust officer of this bank, who shall be
designated as the managing officer of the trust department and whose duties
shall be to manage, supervise and direct all the activities of the trust
department. He shall do, or cause to be done, all things necessary or proper in
carrying on the business of the trust department in accordance with provisions
of law and regulations. He shall act pursuant to opinion of counsel where such
opinion is deemed necessary. Opinions of counsel shall be retained on file in
connection with all important matters pertaining to fiduciary activities. The
trust officer shall be responsible for all assets and documents held by the bank
in connection with fiduciary matters.


                                        5

<PAGE>   25

The board may appoint such other officers of the trust department as it may deem
necessary, with such duties as may be assigned to them by the board, the
chairman of the board, or the president.

      SECTION 5.3. TRUST INVESTMENT COMMITTEE. There shall be appointed by the
board a trust investment committee of this bank composed of not less than four
members, including members ex officio provided for in other sections of these
bylaws, who shall be capable and experienced officers or directors of the bank.
All investments of funds held in a fiduciary capacity shall be made, retained or
disposed of only with the approval of the trust investment committee; and the
committee shall keep minutes of all its meetings, showing the disposition of all
matters considered and passed upon by it. The committee shall, promptly after
the acceptance of an account for which the bank has investment responsibilities,
review the assets thereof, to determine the advisability of retaining or
disposing of such assets. The committee shall conduct a similar review at least
once during each calendar year thereafter and within fifteen months of the last
such review. A report of all such reviews, together with the action taken as a
result thereof, shall be noted in the minutes of the committee. Three members of
the trust investment committee shall constitute a quorum, and any action
approved by a majority of those present shall constitute the action of the
committee.

      SECTION 5.4. TRUST AUDIT COMMITTEE. The board shall appoint a committee of
not less than three directors, including members ex officio provided for in
other sections of these bylaws, exclusive of any active officers of the bank,
which shall at least once during each calendar year and within fifteen months of
the last such audit make suitable audits of the trust department, or cause
suitable audits to be made, by auditors responsible only to the board, and at
such time shall ascertain whether the department has been administered in
accordance with law, Regulation 9, and sound fiduciary principles.
Notwithstanding the provisions of this Section, the board at any time may assign
to the Examining Committee, in addition to the duties of the Examining Committee
set forth in Section 3.3 of these bylaws, all of the duties of the Trust Audit
Committee and during such time as the Examining Committee is performing the
duties of both committees, the Trust Audit Committee shall cease to function as
a committee of this board. The board at any time may reassign the duties
provided for in this Section to the Trust Audit Committee.

      SECTION 5.5. TRUST DEPARTMENT FILES. There shall be maintained in the
trust department, files containing all fiduciary records necessary to assure
that its fiduciary responsibilities have been properly undertaken and
discharged.

      SECTION 5.6. TRUST INVESTMENTS. Funds held in a fiduciary capacity shall
be invested in accordance with the instrument establishing the fiduciary
relationship and local law. Where such instrument does not specify the character
and class of investments to be made and does not vest in the bank a discretion
in the matter, fund shield pursuant to such instrument shall be invested in
investments in which corporate fiduciaries may invest under local law.

                                   ARTICLE VI

                          STOCK AND STOCK CERTIFICATES

      SECTION 6.1. TRANSFERS. Shares of capital stock shall be transferable on
the books of the bank and a transfer book shall be kept in which all transfers
of stock shall be recorded. Every person becoming a shareholder be such transfer
shall in proportion to his shares, succeed to all rights and liabilities of the
prior holder of such shares.

      SECTION 6.2. STOCK CERTIFICATES. Certificates of capital stock shall bear
the signature of any one of, the chairman of the board, or the president (which
may be engraved, printed or impressed) and shall be signed manually or by
facsimile process by the secretary, assistant secretary, cashier, assistant
cashier, or any other officer appointed by the board for that purpose, to be
known as an authorized officer and the seal of the bank shall be engraven
thereon. Each certificate shall recite on its face that the stock represented
thereby is transferable, properly endorsed, only on the books of the bank.


                                        6

<PAGE>   26

                                   ARTICLE VII

                                 CORPORATE SEAL

      SECTION 7.1. CORPORATE SEAL. The chairman of the board, the president, the
cashier, the secretary or any assistant cashier or assistant secretary, or other
officer thereunto designated by the board, shall have authority to affix the
corporate seal to any document requiring such seal, and to attest the same. Such
seal shall be substantially in the form set forth herein.

                                  ARTICLE VIII

                       INDEMNIFYING OFFICERS AND DIRECTORS

      SECTION 8.1. INDEMNIFYING OFFICERS AND DIRECTORS. Any person, his heirs,
executors or administrators, may be indemnified or reimbursed by the bank for
reasonable expenses actually incurred in connection with any action, suit or
proceeding, civil or criminal, to which he or they shall be made a party by
reason of his being or having been a director, officer or employee of the bank
or of any firm, corporation or organization which he served in any such capacity
at the request of the bank; provided, however, that no person shall be so
indemnified or reimbursed in relation to any matter in such action, suit or
proceeding as to which he shall finally be adjudged to have been guilty of or
liable for negligence or willful misconduct in the performance of his duties to
the bank; and, provided further, that no person shall be so indemnified or
reimbursed in relation to any matter in such action, suit or proceeding which
has been made the subject of a compromise settlement except with the approval of
a court of competent jurisdiction, or the holders of record of a majority of the
outstanding shares of the bank, or the board, acting by vote of directors not
parties to the same or substantially the same action suit or proceeding,
constituting a majority of the whole number of the directors. The foregoing
right of indemnification or reimbursement shall not be exclusive of other rights
to which such person, his heirs, executors or administrators, may be entitled as
a matter of law.

                                   ARTICLE IX

                            MISCELLANEOUS PROVISIONS

      SECTION 9.1. FISCAL YEAR. The fiscal year of the bank shall be the
calendar year.

      SECTION 9.2. EXECUTION OF INSTRUMENTS. All agreements, indentures
mortgages, deeds, conveyances transfers certificates declarations, receipts,
discharges, releases, satisfactions, settlements, petitions, schedules,
accounts, affidavits, bonds, undertakings, proxies and other instruments or
documents may be signed, executed, acknowledged, verified, delivered or accepted
for the bank by the chairman of the board, or the vice chairman of the board, or
the president, or any executive vice president, or any senior vice president, or
any vice president, or the secretary or the cashier, or, if in connection with
the exercise of fiduciary powers of the bank by any of said officers or by any
officer in the trust department. Any such instruments may also be signed,
executed, acknowledged, verified, delivered or accepted for the bank in such
other manner and by such other officers as the board may from time to time
direct. The provisions of this Section 9.2 are supplementary to any other
provisions of these bylaws.

      SECTION 9.3. RECORDS. The articles of association, the bylaws, and the
proceedings of all meetings of the shareholders and of the board shall be
recorded in appropriate minute books provided for the purpose; where these
bylaws so provide, the proceedings of standing committees of the board shall be
recorded in appropriate minute books provided for the purpose.


                                        7

<PAGE>   27

                                    ARTICLE X

                                   EMERGENCIES

      SECTION 10.1. CONTINUATION OF BUSINESS. In the event of a state of
emergency of sufficient severity to interfere with the conduct and management of
the affairs of this bank, the officers and employees will continue to conduct
the affairs of the bank under such guidance from the directors as may be
available except as to matters which by statute require specific approval of the
board of directors and subject to conformance with any governmental directives
during the emergency.

      SECTION 10.2. DESIGNATION OF PLACE OF BUSINESS. The offices of the bank at
which its business shall be conducted shall be the main office thereof located
at 135 South LaSalle Street, Chicago, Illinois, and any other legally authorized
location which may be leased or acquired by this bank to carry on its business.
During an emergency resulting in any authorized place of business of this bank
being unable to function, the business ordinarily conducted at such location
shall be relocated elsewhere in suitable quarters, in addition to or in lieu of
the locations heretofore mentioned, as may be designated by the board of
directors or by the executive committee or by such persons as are then, in
accordance with resolutions adopted from time to time by the board of directors
dealing with the exercise of authority in the time of such emergency, conducting
the affairs of this bank. Any temporarily relocated place of business of this
bank shall be returned to its legally authorized location as soon as practicable
and such temporary place of business shall then be discontinued.

                                   ARTICLE XI

                                     BYLAWS

      SECTION 11.1. INSPECTION. A copy of the bylaws with all amendments
thereto, shall at all times be kept in a convenient place at the main office of
the bank and shall be open for inspection to all shareholders, during banking
hours.

      SECTION 11.2. AMENDMENTS. The bylaws may be amended, altered or repealed,
at any regular meeting of the board, by a vote of a majority of the whole number
of the directors.

                                       ***

      I..................... hereby certify that I am the.....................
Cashier/Secretary of LaSalle National Bank, Chicago, Illinois and that the
foregoing is a true and correct copy of the bylaws of this bank as amended and
that the same are in full force and effect ............. day
of...............19....


                                                 ...............................
                                                 Cashier/Secretary.

December 15, 1982

                                                                          (SEAL)


                                        8

<PAGE>   28

                                    EXHIBIT 5

                                 NOT APPLICABLE


<PAGE>   29

                                    EXHIBIT 6

LaSalle National Bank hereby consents in accordance with the provisions of
Section 321(b) of the Trust Indenture Act of 1939, that reports of examinations
by Federal, State, Territorial and District authorities may be furnished by such
authorities to the Securities and Exchange Commission upon its request therefor.



                                       LA SALLE NATIONAL BANK



                                       By:   /s/ Sarah H. Webb
                                             -----------------------------------
                                                 Sarah H. Webb
                                                 First Vice President

<PAGE>   30

                                   EXHIBIT 7

                          Latest Report of Condition of
                          Trustee published pursuant to
                          law or the requirement of its
                        surviving or examining authority.


<PAGE>   31
<TABLE>
<S>                            <C>                                     <C>                  <C>
LaSalle National Bank          Call Date:    3/31/97                   ST-BK:  17-1520      FFIEC   031
135 South LaSalle Street                                                                    Page   RC-1
Chicago, IL  60603             Vendor ID: D                            CERT:  15407         11
</TABLE>

Transit Number:  71000505

CONSOLIDATED REPORT OF CONDITION FOR INSURED COMMERCIAL AND
STATE-CHARTERED SAVINGS BANKS FOR MARCH 31, 1997

All schedules are to be reported in thousands of dollars. Unless otherwise
indicated, report the amount outstanding as of the last business day of the
quarter.

SCHEDULE RC - BALANCE SHEET

<TABLE>
<CAPTION>
                                                                                                  Dollar Amounts in Thousands
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                                     <C>       <C>        <C>    <C>         <C>      <C>
ASSETS                                                                                        RCFD
   1. Cash and balances due from depository institutions (from Schedule RC-A):                ----
      a. Noninterest-bearing balances and currency and coin(1)                                0081     594,350   1.a
      b. Interest-bearing balances(2)                                                         0071         392   1.b
   2. Securities:
      a. Held-to-maturity securities (from Schedule RC-B, column A)                           1754   1,044,435   2.a
      b. Available-for-sale securities (from Schedule RC-B, column D)                         1773   3,505,040   2.b
   3. Federal funds sold and securities purchased under agreements to resell                  1350     144,843   3.
   4. Loans and lease financing receivables:                             RCFD
      a. Loans and leases, net of unearned income                        ----
          (from Schedule RC-C)                                           2122     8,955,181                      4.a
      b. LESS: Allowance for loan and lease losses                       3123       175,944                      4.b
      c. LESS: Allocated transfer risk reserve                           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   8,779,237   4.d
   5. Trading assets (from Schedule RC-D)                                                     3545     190,980   5.
   6. Premises and fixed assets (including capitalized leases)                                2145      37,545   6.
   7. Other real estate owned (from Schedule RC-M)                                            2150       7,123   7.
   8. Investments in unconsolidated subsidiaries and associated companies (from
      Schedule RC-M)                                                                          2130           0   8.
   9. Customers' liability to this bank on acceptances outstanding                            2155       9,338   9.
  10. Intangible assets (from Schedule RC-M)                                                  2143      21,357   10.
  11. Other assets (from Schedule RC-F)                                                       2160     248,671   11.
  12. Total assets (sum of items 1 through 11)                                                2170  14,583,311   12.      14,583,311
</TABLE>

- ------------
(1)   Includes cash items in process of collection and unposted debits.

(2)   Includes time certificates of deposit not held for trading.

<PAGE>   32

<TABLE>
<S>                            <C>                                     <C>                  <C>
LaSalle National Bank          Call Date:         3/31/97              ST-BK:  17-1520      FFIEC        031
135 South LaSalle Street                                                                    Page      RC - 2
Chicago, IL  60603             Vendor ID: D                            CERT:  15407         12
</TABLE>

Transit Number:  71000505

SCHEDULE RC - CONTINUED
<TABLE>
<CAPTION>
                                                                                                   Dollar Amounts in Thousands
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                     <C>      <C>         <C>    <C>         <C>       <C>
LIABILITIES
  13. Deposits:                                                                               RCON
      a. In domestic offices (sum of totals of                                                ----
          columns A and C from Schedule RC-E, part I)                                         2200    7,705,258  13.a
                                                                         RCON
                                                                         ----
          (1) Noninterest-bearing(1)                                     6631     1,749,003                      13.a.1
          (2) Interest-bearing                                           6636     5,956,255                      13.a.2    7,705,258
                                                                                              RCFN
      b. In foreign offices, Edge and Agreement subsidiaries, and IBFs                        ----
         (from Schedule RC-E, part II)                                                        2200    1,809,656  13.b
                                                                         RCFN
                                                                         ----
          (1) Noninterest-bearing                                        6631             0                      13.b.1
          (2) Interest-bearing                                           6636     1,809,656                      13.b.2
                                                                                              RCFD
                                                                                              ----
  14. Federal funds purchased and securities sold under agreements to repurchase              2800    1,606,695  14.
                                                                                              RCON
                                                                                              ----
  15. a. Demand notes issued to the U.S. Treasury                                             2840      369,143  15.a
                                                                                              RCFD
                                                                                              ----
      b. Trading liabilities (from Schedule RC-D)                                             3548      102,955  15.b
  16. Other borrowed money (includes mortgage indebtedness and obligations under
      capitalized leases):
      a. With a remaining maturity of one year or less                                        2332    1,260,227  16.a
      b. With a remaining maturity of more than one year                                      2333       37,663  16.b
  17. Not applicable.
  18. Bank's liability on acceptances executed and outstanding                                2920        9,338  18.
  19. Subordinated notes and debentures(2)                                                    3200      396,250  19.
  20. Other liabilities (from Schedule RC-G)                                                  2930      388,123  20.
  21. Total liabilities (sum of items 13 through 20)                                          2948   13,685,308  21.      13,685,308
  22. Not applicable.

EQUITY CAPITAL                                                                                RCFD
                                                                                              ----
  23. Perpetual preferred stock and related surplus                                           3838            0  23.
  24. Common stock                                                                            3230       18,417  24.
  25. Surplus (exclude all surplus related to preferred stock)                                3839      245,636  25.
  26. a. Undivided profits and capital reserves                                               3632      637,471  26.a
      b. Net unrealized holding gains (losses) on available-for-sale securities               8434       (3,521) 26.b
  27. Cumulative foreign currency translation adjustments                                     3284            0  27.
  28. Total equity capital (sum of items 23 through 27)                                       3210      898,003  28.         898,003
  29. Total liabilities, limited-life preferred stock, and equity capital (sum of
      items 21 and 28)                                                                        3300   14,583,311  29.      14,583,311

MEMORANDUM
TO BE REPORTED ONLY WITH THE MARCH REPORT OF CONDITION.

   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                                                  RCFD      Number
                                                                                             ----      ------
      external auditors as of any date during 1996                                           6724            2  M.1
</TABLE>

1  =  Independent audit of the bank conducted in accordance with generally
      accepted auditing standards by a certified public accounting firm which
      submits a report on the bank

2  =  Independent audit of the bank's parent holding company conducted in
      accordance with generally accepted auditing standards by a certified
      public accounting firm which submits a report on the consolidated holding
      company (but not on the bank separately)

3  =  Directors' examination of the bank conducted in accordance with
      generally accepted auditing standards by a certified public accounting
      firm (may be required by state chartering authority)

4  =  Directors' examination of the bank performed by other external auditors
      (may be required by state chartering authority)

5  =  Review of the bank's financial statements by external auditors

6  =  Compilation of the bank's financial statements by external auditors

7  =  Other audit procedures (excluding tax preparation work)

8  =  No external audit work

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

(1)   Includes total demand deposits and noninterest-bearing time and savings
      deposits.

(2)   Includes limited-life preferred stock and related surplus.


<PAGE>   33


                                    EXHIBIT 8

                                 NOT APPLICABLE


<PAGE>   34

                                    EXHIBIT 9

                                 NOT APPLICABLE

<PAGE>   1
                                                                    EXHIBIT 25.2

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                            -----------------------

                                   FORM T-1

                  STATEMENT OF ELIGIBILITY AND QUALIFICATION
                  UNDER THE TRUST INDENTURE ACT OF 1939 OF A
                   CORPORATION DESIGNATED TO ACT AS TRUSTEE
                            -----------------------

                             LASALLE NATIONAL BANK
              (Exact name of trustee as specified in its charter)

                                  36-1521370
                               (I.R.S. Employer
                              Identification No.)

               135 South LaSalle Street, Chicago, Illinois 60603
              (Address of principal executive offices) (Zip Code)

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

                              M. ROBERT K. QUINN
                   Senior Vice President and General Counsel
                           Telephone: (312) 904-2010
                           135 South LaSalle Street
                            Chicago, Illinois 60603
           (Name, address and telephone number of agent for service)

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

                             QUANTUM CORPORATION
              (Exact name of obligor as specified in its charter)

                Delaware                               94-2665054
      (State or other jurisdiction                  (I.R.S. Employer
     incorporation or organization)                Identification No.) 

        500 McCarthy Boulevard
          Milpitas, California
             (408) 894-4000                               95035

(Address of Principal Executive Offices)                (Zip Code)

                             -----------------------
                          Subordinated Debt Securities
                       (Title of the 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.

            1.    Comptroller of the Currency, Washington D.C.

            2.    Federal Deposit Insurance Corporation, Washington, D.C.

            3.    The Board of Governors of the Federal Reserve Systems,
                  Washington, D.C.

      (b)   Whether it is authorized to exercise corporate trust powers.

                  Yes.

ITEM 2.     AFFILIATIONS WITH OBLIGOR AND UNDERWRITERS.

If the obligor or any underwriter for the obligor is an affiliate of the
trustee, describe each such affiliation.

            Neither the obligor nor any underwriter for the obligor is an
affiliate of the trustee.

ITEM 3.     VOTING SECURITIES OF THE TRUSTEE.

Furnish the following information as to each class of voting securities of the
trustee:

                                Not applicable

ITEM 4.     TRUSTEESHIPS UNDER OTHER INDENTURES.

If the trustee is a trustee under another indenture under which any other
securities, or certificates of interest or participation in any other
securities, of the obligor are outstanding, furnish the following information:

            (a) Title of the securities outstanding under each other indenture.

                                Not applicable


            (b) A brief statement of the facts relied upon as a basis for the
            claim that no conflicting interest within the meaning of Section
            310(b)(1) of the Act arises as a result of the trusteeship under
            such other indenture, including a statement as to how the indenture
            securities will rank as compared with the securities issued under
            such other indenture.

                                Not applicable
<PAGE>   3

ITEM 5.     INTERLOCKING DIRECTORATES AND SIMILAR RELATIONSHIPS WITH THE OBLIGOR
OR UNDERWRITERS.

If the trustee or any of the directors or executive officers of the trustee is a
director, officer, partner, employee, appointee, or representative of the
obligor or of any underwriter for the obligor, identify each such person having
any such connection and state the nature of each such connection.

                                Not applicable

ITEM 6.     VOTING SECURITIES OF THE TRUSTEE OWNED BY THE OBLIGOR OR ITS 
OFFICIALS.

Furnish the following information as to the voting securities of the trustee
owned beneficially by the obligor and each director, partner and executive
officer of the obligor.

                                Not applicable

ITEM 7.     VOTING SECURITIES OF THE TRUSTEE OWNED BY UNDERWRITERS OR THEIR
OFFICIALS.

Furnish the following information as to the voting securities of the trustee
owned beneficially by each underwriter for the obligor and each director,
partner, and executive officer of each such underwriter.

                                Not applicable

ITEM 8. SECURITIES OF THE OBLIGOR OWNED OR HELD BY THE TRUSTEE.

Furnish the following information as to securities of the obligor owned
beneficially or held as collateral security for obligations in default by the
trustee:

                                Not applicable

ITEM 9.     SECURITIES OF THE UNDERWRITER OWNED OR HELD BY THE TRUSTEE.

If the trustee owns beneficially or holds as collateral security for obligations
in default any securities of an underwriter for the obligor, furnish the
following information as to each class of securities of such underwriter any of
which are so owned or held by the trustee.

                                Not applicable

ITEM 10. OWNERSHIP OR HOLDINGS BY THE TRUSTEE OF VOTING SECURITIES OF CERTAIN
AFFILIATES OR SECURITY HOLDERS OF THE OBLIGOR.

If the trustee owns beneficially or holds as collateral security for obligations
in default voting securities of a person who, to the knowledge of the trustee
(1) owns 10 percent or more of the voting securities of the obligor or (2) is an
affiliate, other than a subsidiary, of the obligor, furnish the following
information as to the voting securities of such person.

                                Not applicable

<PAGE>   4

ITEM 11. OWNERSHIP OR HOLDINGS BY THE TRUSTEE OF ANY SECURITIES OF A PERSON
OWNING 50 PERCENT OR MORE OF THE VOTING SECURITIES OF THE OBLIGOR.

If the trustee owns beneficially or holds as collateral security for obligations
in default any securities of a person who, to the knowledge of the trustee, owns
50 percent or more of the voting securities of the obligor, furnish the
following information as to each class of securities of such person any of which
are so owned or held by the trustee.

                                Not applicable

ITEM 12.    INDEBTEDNESS OF THE OBLIGOR TO THE TRUSTEE.

If the obligor is indebted to the trustee, furnish the following information.

                                Not applicable

ITEM 13.    DEFAULTS BY THE OBLIGOR.

a) State whether there is or has been a default with respect to the securities
under this indenture. Explain the nature of any such default.

                                Not applicable

b) If the trustee is a trustee under another indenture under which any other
securities, or certificates of interest or participation in any other
securities, of the obligor are outstanding, or is trustee for more than one
outstanding series of securities under the indenture, state whether there has
been a default under any such indenture or series, identify the indenture or
series affected, and explain the nature of any such default.

                                Not applicable

ITEM 14.    AFFILIATIONS WITH THE UNDERWRITERS.

If any underwriter is an affiliate of the trustee, describe each such
affiliation.

                                Not applicable

ITEM 15.    FOREIGN TRUSTEE.

Identify the order or rule pursuant to which the foreign trustee is authorized
to act as sole trustee under indentures qualified or to be qualified.

                                Not applicable

ITEM 16.    LIST OF EXHIBITS.

List below all exhibits filed as part of this statement of eligibility and
qualification.

            1.    A copy of the Articles of Association of LaSalle National Bank
                  now in effect.

            2.    A copy of the certificate of authority to commence business.

            3.    A copy of the authorization to exercise corporate trust
                  powers.

<PAGE>   5



            4.    A copy of the existing By-Laws of LaSalle National Bank.

            5.    Not applicable.

            6.    The consent of the trustee required by Section 321(b) of the
                  Trust Indenture Act of 1939.

            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.

<PAGE>   6

                                    SIGNATURE

Pursuant to the requirements of the Trust Indenture Act of 1939,the trustee,
LaSalle National Bank, a corporation organized and existing under the laws of
the United States of America, has duly caused this statement of eligibility and
qualification to be signed on its behalf by the undersigned, thereunto duly
authorized, all in the City of Chicago, State of Illinois, on the 7th day of
July, 1997.

                                       LASALLE NATIONAL BANK


                                       By:   /s/ Sarah H. Webb
                                             -----------------------------------
                                                 Sarah H. Webb
                                                 First Vice President

<PAGE>   7

                                    EXHIBIT 1

                             ARTICLES OF ASSOCIATION

<PAGE>   8

                                    ARTICLES
                                       OF
                                   ASSOCIATION


                          LA SALLE NATIONAL BANK (LOGO)


                             LA SALLE NATIONAL BANK
                                CHICAGO, ILLINOIS

<PAGE>   9

                                     (LOGO)
                              LaSalle National Bank


                             ARTICLES OF ASSOCIATION

      FIRST. The title of this association, which shall carry on the business of
banking under the laws of the United States shall be "LaSalle National Bank."

      SECOND. The place where the main banking house or office of this
association shall be located, its operations of discount and deposit carried on,
and its general business conducted, shall be Chicago, County of Cook, State of
Illinois.

      THIRD. The Board of Directors of this association shall consist of such
number of its shareholders, not less than five nor more than twenty-five, as
from time to time shall be determined by a majority of the votes to which all of
its shareholders are at the time entitled. A majority of the Board of Directors
shall be necessary to constitute a quorum for the transaction of business. The
Board of Directors, by vote of a majority of the full board, may, between annual
meetings of shareholders increase the membership of the Board where the number
of directors last elected by shareholders was 15 or less, by not more than two
members, and where the number of directors last elected by shareholders was 16
or more, by not more than four members and by a like vote appoint qualified
persons to fill the vacancies created thereby; provided that the number of
Directors shall at no time exceed twenty-five.

      FOURTH. The regular annual meeting of the shareholders of this association
shall be held at its main banking house, or other convenient place duly
authorized by the board of directors on such day of each year as is specified
therefor in the bylaws.

      FIFTH. The amount of capital stock which this association is authorized to
issue shall be Twenty Million Dollars ($20,000,000.00) divided into 2,000,000
shares of common capital stock of the par value of $10.00 each; but said capital
stock may be increased or decreased from time to time, in accordance with the
provisions of the laws of the United States.

      If the capital stock is increased by the sale of additional shares
thereof, other than to key officers and employees of the association upon the
exercise of options granted pursuant to the terms of a stock option plan then in
effect, as to which sales all pre-emptive rights are waived, each shareholder
shall be entitled to subscribe for such additional shares in proportion to the
number of shares of said capital stock owned by him at the time the increase is
authorized by the shareholders, unless another time subsequent to the date of
the shareholders' meeting is specified in a resolution adopted by the
shareholders at the time the increase is authorized. The board of directors
shall have the power to prescribe a reasonable period of time within which the
pre-emptive rights to subscribe to the new shares of capital stock may be
exercised.

      The association, at any time and from time to time, may authorize and
issue debt obligations, whether or not subordinated, without the approval of the
shareholders.

      SIXTH. The board of directors shall appoint one of its members president
of this association, who shall be chairman of the board, but the board of
directors may appoint a director in lieu of the president to be chairman of the
board, who shall perform such duties as may be designated by the board of
directors. The board of directors shall have the power to appoint one or more
vice presidents, a cashier and such other officers as may be required to
transact the business of this association; to fix the salaries to be paid to all
officers of this association; and to dismiss such officers, or any of them.

      The board of directors shall have the power to define the duties of
officers and employees of this association, to require bonds from them, and to
fix the penalty thereof; to regulate the manner in which directors shall be
elected

<PAGE>   10

or appointed, and to appoint judges of the election; to make all bylaws that it
may be lawful for them to make for the general regulation of the business of
this association and the management of its affairs; and generally to do and
perform all acts that it may be lawful for a board of directors to do and
perform.

      SEVENTH. This association shall have succession from the date of its
organization certificate until such time as it be dissolved by act of its
shareholders in accordance with the provisions of the banking laws of the United
States, or until its franchise becomes forfeited by reason of violation of law,
or until terminated by either a general or a special act of Congress, or until
its affairs be placed in the hands of a receiver and finally wound up by him.

      EIGHTH. The board of directors of this association, or any three or more
shareholders owning, in the aggregate, not less than ten per centum of the stock
of this association, may call a special meeting of shareholders at any time:
Provided, however, that, unless otherwise provided by law, not less than ten
days prior to the date fixed for any such meeting, a notice of the time, place,
and purpose of the meeting shall be given by first-class mail, postage prepaid,
to all shareholders of record of this association at their respective addresses
as shown upon the books of the association. These articles of association may be
amended at any regular or special meeting of the shareholders by the affirmative
vote of the shareholders owning at least a majority of the stock of this
association, subject to the provisions of the banking laws of the United States.
The notice of any shareholders' meeting, at which an amendment to the articles
of association of this association is to be considered, shall be given as
herein-above set forth.

      NINTH. Any person, his heirs, executors, or administrators, may be
indemnified or reimbursed by the association for reasonable expenses actually
incurred in connection with any action, suit, or proceeding, civil or criminal,
to which he or they shall be made a party by reason of his being or having been
a director, officer, or employee of the association or of any firm, corporation,
or organization which he served in any such capacity at the request of the
association: Provided, however, that no person shall be so indemnified or
reimbursed in relation to any matter in such action, suit, or proceeding as to
which he shall finally be adjudged to have been guilty of or liable for
negligence or wilful misconduct in the performance of his duties to the
association: And, provided further, that no person shall be so indemnified or
reimbursed in relation to any matter in such action, suit, or proceeding which
has been made the subject of a compromise settlement except with the approval of
a court of competent jurisdiction, or the holders of record of a majority of the
outstanding shares of the association, or the board of directors, acting by vote
of directors not parties to the same or substantially the same action, suit, or
proceeding, constituting a majority of the whole number of the directors. The
foregoing right of indemnification or reimbursement shall not be exclusive of
other rights to which such person, his heirs, executors, or administrators, may
be entitled as a matter of law.

                                   ********

May 17, 1982
Form No. 181, Rev 5/17/82 GW

<PAGE>   11

                                    EXHIBIT 2

                            CERTIFICATE OF AUTHORITY
                              TO COMMENCE BUSINESS


<PAGE>   12

                                STATE OF ILLINOIS

                                AUDITOR'S OFFICE

NO.  333                              (LOGO)

                         NATIONAL BANK TRUST CERTIFICATE

                                                 Springfield, FEBRUARY 15th 1928


      I, OSCAR NELSON, Auditor of Public Accounts of the State of Illinois, do
hereby certify that the NATIONAL BUILDERS BANK OF CHICAGO located at CHICAGO,
County of COOK and State of Illinois, a corporation organized under and by
authority of the statutes of the United States governing National Banks and
authority granted by the Federal Reserve Act for the purpose of accepting and
executing trusts, has this day deposited in this office, securities in the sum
of TWO HUNDRED THOUSAND Dollars, $200,000.00 of the character designated by
Section 6 of the Act of the Legislature of the State of Illinois entitled "An
Act to provide for and regulate the administration of trusts by trust
companies,"

      The said deposit is made for the benefit of the creditors of said NATIONAL
BUILDERS BANK OF CHICAGO under and by virtue of the provisions of the Act above
referred to and the said securities are now held by me in this office in my
official capacity as such Auditor of Public Accounts, for the uses and purposes
aforesaid.

      I further certify that by virtue of the Acts aforesaid, the NATIONAL
BUILDERS BANK OF CHICAGO is hereby authorized to accept and execute trusts and
receive deposits of trust funds under the provisions and limitations of "An Act
to provide for and regulate the administration of trusts in Illinois.


(SEAL)      IN TESTIMONY WHEREOF, I hereunto subscribe my name and affix the
            seal of my office, the day and year first above written.
 


                                        /s/ Oscar Nelson
                                        ----------------------------------------
                                        AUDITOR OF PUBLIC ACCOUNTS.
                                        STATE OF ILLINOIS.

<PAGE>   13

                                   NO. 13146.

                           TREASURY DEPARTMENT (LOGO)

                      OFFICE OF COMPTROLLER OF THE CURRENCY


                                          Washington, D.C., NOVEMBER 29, 1927.

      WHEREAS, by satisfactory evidence presented to the undersigned, it has
been made to appear that "NATIONAL BUILDERS BANK OF CHICAGO" in the CITY of
CHICAGO in the County of COOK and State of ILLINOIS has complied with all the
provisions of the Statutes of the United States, required to be complied with
before an association shall be authorized to commence the business of Banking;

      NOW THEREFORE I, J.W. MCINTOSH, Comptroller of the Currency, do hereby
certify that "NATIONAL BUILDERS BANK OF CHICAGO" in the CITY of CHICAGO in the
County of COOK and State of ILLINOIS is authorized to commence the business of
Banking as provided in Section Fifty one hundred and sixty nine of the Revised
Statutes of the United States.


(SEAL)      IN TESTIMONY WHEREOF witness my hand and Seal of (SEAL) office this
            TWENTY-NINTH day of NOVEMBER, 1927.




                                       /s/ J.W. McIntosh
                                       -----------------------------------------
                                       Comptroller of the Currency

<PAGE>   14

                    CERTIFICATE OF CHANGE OF CORPORATE TITLE

                                     (LOGO)

                                   NO. 13146.

                               TREASURY DEPARTMENT

                    OFFICE OF THE COMPTROLLER OF THE CURRENCY

                                                  WASHINGTON, D.C., MAY 1, 1940.


      WHEREAS, by satisfactory evidence presented to me, it appears that under
authority of sections 2, 3, and 4, of the Act of Congress approved May 1, 1886,
entitled "An Act to enable national banking associations to increase their
capital stock and to change their names or location," shareholders owning
two-thirds of the stock of the national banking association heretofore known
as-- "NATIONAL BUILDERS BANK OF CHICAGO," located in CHICAGO, County of COOK,
State of ILLINOIS, have voted to change the name of said association to--
"LASALLE NATIONAL BANK," and have complied with all the provisions of the said
Act relative to national banking associations changing their name.

      NOW, THEREFORE, IT IS HEREBY CERTIFIED, that the name of the said
association has been changed to-- "LASALLE NATIONAL BANK," and that such change
of name is hereby approved under authority conferred by said Act.


(SEAL)      IN TESTIMONY WHEREOF, witness my hand and seal of office this FIRST
            day of MAY, 1940.



                                       /s/
                                       -----------------------------------------
                                       ACTING Comptroller of the Currency.

<PAGE>   15

                                    EXHIBIT 3

                            AUTHORIZATION TO EXERCISE
                             CORPORATE TRUST POWERS


<PAGE>   16

                               BOARD OF GOVERNORS
                                     OF THE
                       FEDERAL RESERVE SYSTEM [LETTERHEAD]

                                   WASHINGTON


                                                                   May 9, 1940

LaSalle National Bank,
Chicago, Illinois.

Gentlemen:

      The Board of Governors of the Federal Reserve System has been officially
advised by the Comptroller of the Currency that on May 1, 1940, National
Builders Bank of Chicago, Chicago, Illinois, changed its title to LaSalle
National Bank, and accordingly there is enclosed herewith a certificate showing
that LaSalle National Bank has authority to exercise the fiduciary powers
enumerated therein.

      Kindly acknowledge receipt of this certificate.

                                Very truly yours,


                                       S. R. Carpenter
                                       -----------------------------------------
                                       S. R. Carpenter,
                                       Assistant Secretary.


Enclosure


<PAGE>   17

                               BOARD OF GOVERNORS
                                     OF THE
                             FEDERAL RESERVE SYSTEM
                                   WASHINGTON

      I, S. R. Carpenter, Assistant Secretary of the Board of Governors of the
Federal Reserve System (formerly known as the Federal Reserve Board), do hereby
certify that it appears from the records of the Board of Governors of the
Federal Reserve System that:

      (1) Pursuant to the authority vested in the Federal Reserve Board by an
Act of Congress approved December 23, 1913, known as the Federal Reserve Act, as
amended, the Federal Reserve Board on December 8, 1927, granted to National
Builders Bank of Chicago, Chicago, Illinois, the right to act, when not in
contravention of State or local law, as trustee, executor, administrator,
registrar of stocks and bonds, guardian of estates, assignee, receiver,
committee of estates of lunatics, or in any other fiduciary capacity in which
State banks, trust companies or other corporations which come into competition
with national banks are permitted to act under the laws of the State of
Illinois;

      (2) Under the provisions of an Act of Congress approved May 1, 1886,
National Builders Bank of Chicago, Chicago, Illinois, on May 1, 1940, changed
its title to LaSalle National Bank; and

      (3) By virtue of the foregoing, LaSalle National Bank, Chicago, Illinois,
has authority to act, when not in contravention of State or local law, as
trustee, executor, administrator, registrar of stocks and bonds, guardian of
estates, assignee, receiver, committee of estates of lunatics, or in any other
fiduciary capacity in which State banks, trust companies or other corporations
which come into competition with national banks are permitted to act under the
laws of the State of Illinois, subject to regulations prescribed by the Board of
Governors of the Federal Reserve System.

      IN WITNESS WHEREOF, I have hereunto subscribed my name and caused the seal
of the Board of Governors of the Federal Reserve System to be affixed at the
City of Washington in the District of Columbia.


                                       /s/ S. R. Carpenter
                                       -----------------------------------------
                                       Assistant Secretary.


Dated  May 9, 1940


<PAGE>   18

                                    EXHIBIT 4

                        BY-LAWS OF LA SALLE NATIONAL BANK

<PAGE>   19

                                     BYLAWS

                                       OF

                             LA SALLE NATIONAL BANK

                                CHICAGO, ILLINOIS


                          LA SALLE NATIONAL BANK (LOGO)


                    Organized Under the National Banking Laws
                              of the United States


<PAGE>   20

                                     BYLAWS

                                     of the

                             LA SALLE NATIONAL BANK

                (a National Banking Association which association
                      is herein referred to as the "bank")

                                    ARTICLE I

                            MEETINGS OF SHAREHOLDERS

      SECTION 1.1. ANNUAL MEETING. The regular annual meeting of the
shareholders for the election of directors and the transaction of whatever other
business may properly come before the meeting, shall be held at the main office
of the Bank, 135 South LaSalle Street, Chicago, Illinois, or such other place as
the Board of Directors may designate, at 9:00 A.M., on the third Wednesday of
March of each year. Notice of such meeting shall be mailed, postage prepaid, at
least ten days prior to the date thereof, addressed to each shareholder at his
address appearing on the books of the Bank. If for any cause, an election of
directors is not made on the said day, the Board of Directors shall order the
election to be held on some subsequent day as soon thereafter as practicable,
according to the provisions of law; and notice thereof shall be given in the
manner herein provided for the annual meeting.

      SECTION 1.2. SPECIAL MEETINGS. Except as otherwise specifically provided
by statute, special meetings of the shareholders may be called for any purpose
at anytime by the board of directors or by any three or more shareholders
owning, in the aggregate, not less than ten percent of the stock of the bank.
Every such special meeting, unless otherwise provided by law, shall be called by
mailing, postage pre-paid, not less than ten days prior to the date fixed for
such meeting, to each shareholder at his address appearing on the books of the
bank, a notice stating the purpose of the meeting.

      SECTION 1.3. NOMINATIONS FOR DIRECTOR. Nominations for election to the
board of directors may be made by the board of directors or by any shareholder
of any outstanding class of capital stock of the bank entitled to vote for the
election of directors. Nominations, other than those made by or on behalf of the
existing management of the bank, shall be made in writing and shall be delivered
or mailed to the president of the bank and to the Comptroller of the Currency,
Washington, D.C., not less than 14 days nor more than 50 days prior to any
meeting of shareholders called for the election of directors, provided, however,
that if less than 21 days' notice of the meeting is given to the shareholders,
such nomination shall be mailed or delivered to the president of the bank and to
the Comptroller of the Currency not later than the close of business on the
seventh day following the day on which the notice of meeting was mailed. Such
notification shall contain the following information to the extent known to the
notifying shareholder: (a) the name and address of each proposed nominee; (b)
the principal occupation of each proposed nominee; (c) the total number of
shares of capital stock of each proposed nominee; (d) the name and address of
the notifying shareholder; and (e) the number of shares of capital stock of the
bank owned by the notifying shareholder. Nominations not made in accordance
herewith, may, in his discretion, be disregarded by the chairman of the meeting,
and upon his instructions, the vote tellers may disregard all votes cast for
each such nominee.

      SECTION 1.4. JUDGES OF ELECTION. Every election of directors shall be
managed by three judges, who shall be appointed by the board of directors prior
lo the time of said election. The judges of election shall hold and conduct the
election at which they are appointed to serve; and after the election, they
shall file with the cashier a certificate under their hands, certifying the
result thereof and the names of the directors elected. The judges of election.
at the request of the chairman of the meeting, shall act as tellers of any other
vote by ballot taken at such meeting, and shall certify the result thereof.



                                        1

<PAGE>   21

      SECTION 1.5. PROXIES. Shareholders may vote at any meeting of the
shareholders by proxies duly authorized in writing, but no officer or employee
of this bank shall act as proxy. Proxies shall be valid only for one meeting, to
be specified therein, and any adjournments of such meeting. Proxies shall be
dated and shall be filed with the records of the meeting.

      SECTION 1.6. QUORUM. A majority of the outstanding capital stock,
represented in person or by proxy, shall constitute a quorum at any meeting of
shareholders, unless otherwise provided by law; but less than a quorum may
adjourn any meeting, from time to time, and the meeting may be held, as
adjourned, without further notice. A majority of the votes cast shall decide
every question or matter submitted to the shareholders at any meeting, unless
otherwise provided by law or by the articles of association.

                                   ARTICLE II

                                    DIRECTORS

      SECTION 2.1. BOARD OF DIRECTORS. The board of directors (hereinafter
referred to as the "board"), shall have power to manage and administer the
business affairs of the bank. Except as expressly limited by law, all corporate
powers of the bank shall be vested in and may be exercised by said board.

      SECTION 2.2. NUMBER. The board shall consist of not less than five or more
than twenty-five shareholders, the exact number within such minimum and maximum
limits to be fixed and determined from time to time by resolution of a majority
of the full board or by resolution of the shareholders at any meeting thereof;
provided, however, that a majority of the full board may not increase the number
of directors by more than two if the number of directors last elected by
shareholders was fifteen or less and by not more than four where the number of
directors last elected by shareholders was sixteen or more, provided that in no
event shall the number of directors exceed twenty-five.

      SECTION 2.3. ORGANIZATION MEETING. The cashier, upon receiving the
certificate of the judges, of the result of any election, shall notify the
directors-elect of their election and of the time at which they are required to
meet at the main office of the bank for the purpose of organizing the new board
and electing and appointing officers of the bank for the succeeding year. Such
meeting shall be appointed to be held on the day of election or as soon
thereafter as practicable, and, in any event, within thirty days thereof. If, at
the time fixed for such meeting, there shall not be a quorum present the
directors present may adjourn the meeting, from time to time, until a quorum is
obtained.

      SECTlON 2.4 REGULAR MEETINGS. The regular meetings of the board shall be
held, without notice, on the third Wednesday of each month at the main office.
When any regular meeting of the board falls upon a holiday, the meeting shall be
held on the next banking business day unless the board shall designate some
other day.

      SECTION 2.5 SPECIAL MEETINGS. Special meetings of the board may be called
by the chairman of the board, the president, or at the request of three or more
directors. Each member of the board shall be given notice stating the time and
place, by telegram, letter or in person, of each such special meeting.

      SECTION 2.6. QUORUM. A majority of the directors shall constitute a quorum
at any meeting, except when otherwise provided by law; but a less number may
adjourn any meeting from time to time, and the meeting may be held, as
adjourned, without further notice.

      SECTION 2.7. VACANCIES. When any vacancy occurs among the directors, the
remaining members of the board, in accordance with the laws of the United
States, may appoint a director to fill such vacancy at any regular meeting of
the board, or at a special meeting called for that purpose.



                                        2

<PAGE>   22

      SECTION 2.8. RETIREMENT POLICY. A retirement policy adopted by the board
of directors shall be applicable to directors who are not active officers of the
bank.

                                   ARTICLE III

                             COMMITTEES OF THE BOARD

      SECTION 3.1. EXECUTIVE COMMITTEE. There shall be an executive committee of
the board. The members of the executive committee shall be chosen by the board
from time to time, shall hold office during its pleasure, and shall consist of
the chairman of the board, the chairman of the executive committee selected by
the board, who may but need not be the same person designated to be president,
and the president, ex officio, and not less than seven additional members of the
board who shall not be active officers of the bank. It shall be the duty of this
committee to exercise such powers and perform such duties in respect to the
making of loans and discounts as shall from time to time be specified by
resolution of the board. During such periods as the board shall not be in
session, the executive committee shall have and may exercise all the powers of
the board except such as are by law or by these bylaws required to be exercised
only by the board. The executive committee may make rules for holding and
conducting its meetings and keep in the minute book of the bank a report of all
action taken which shall be submitted for approval at each regular meeting of
the board and the action of the board shall be recorded in the minutes of that
meeting. A quorum of the executive committee shall consist of not less than five
of its members, at least three of whom shall not be active officers of the bank.
The chairman of the board, or in his absence in the order named if present, the
chairman of the executive committee or the president, may designate any director
who is not an active officer of the bank, or a designated member, to serve as a
member of the executive committee at any specified meeting. Vacancies in the
executive committee at any time existing may be filled by appointment by the
board. The board may at anytime revise or change the membership and chairmanship
of the executive committee and make new or additional appointments thereto. The
chairman of the executive committee shall be ex officio a member of all
committees except the examining committee and the trust audit committee, and
shall have such other duties as may from time to time be assigned him by the
board.

      SECTION 3.2. OFFICERS' COMPENSATION COMMITTEE. There shall be an officers'
compensation committee of the board. The members of the officers' compensation
committee shall consist of the members ex officio provided for in other sections
of these bylaws and not less than three additional non-officer members of the
board who shall be appointed by the board each year at its first meeting after
the directors have been elected and qualified. It shall be the duty of this
committee to study the compensation of all officers of the bank and from time to
time report their recommendations to the board; and such other duties, if any,
as may from time to time be assigned to it by the board. A majority of the
committee, including at least two non-officer members, shall be necessary for
the committee to keep records of its action.

      SECTION 3.3. EXAMINING COMMITTEE. There shall be an examining committee of
the board. The members of the examining committee shall consist of the members
ex officio provided for in other sections of these bylaws, but exclusive of any
active officer of the bank and not less than three additional non-officer
members of the board who shall be appointed by the board each year at its first
meeting after the directors have been elected and qualified. It shall be the
duty of this committee to make an examination at least twice each year into the
affairs of the bank or to cause the examinations to be made by accountants (who
may be the bank's own accountants) responsible only to the board in such
examinations, and to report the result of such examinations in writing to the
board at the next regular meeting thereafter, or it may, at its sole discretion,
submit the reports of the national bank examiner or of the Chicago Clearing
House Association examination, with or without additional comments by the
committee itself, for, and in lieu of its personal examinations. Such reports
shall state whether the bank is in sound condition, whether adequate internal
audit controls and procedures are being maintained and shall recommend to the
board such changes in the manner of doing business or conducting the affairs of
the bank as shall be deemed advisable.



                                        3

<PAGE>   23

      SECTION 3.4. OTHER COMMITTEES. The board may appoint, from time to time,
from its own members, other committees of one or more persons, for such purposes
and with such powers as the board may determine.

                                   ARTICLE IV

                             OFFICERS AND EMPLOYEES

      SECTION 4.1. CHAIRMAN OF THE BOARD. The board shall appoint one of its
members to be chairman of the board. The chairman of the board shall supervise
the carrying out of the policies adopted or approved by the board. He shall have
general executive powers, as well as the specific powers conferred by these
bylaws. He shall be ex officio a member of all committees, except the examining
committee and the trust audit committee. He shall have general supervision and
direction of the business, affairs and personnel of the bank. He shall also have
and may exercise such further powers and duties as from time to time may be
conferred upon, or assigned to him by the board.

      SECTION 4.2 VICE CHAIRMAN OF THE BOARD. The board may appoint one of its
members to be vice chairman of the board. He shall perform such duties as may
from time to time be assigned to him by the board.

      SECTION 4.3. PRESIDENT. The board shall appoint one of its members to be
president of the bank. He shall be the chief executive officer and the chief
administrative officer of the bank and in the absence of the chairman of the
board, he shall preside at any meeting of the board at which he is present. The
president shall have general executive powers, and shall have and may exercise
any and all other powers and duties pertaining by law, regulation, or practice
to the office of president, or imposed by these bylaws. He shall be ex officio a
member of all committees, except the examining committee and trust audit
committee. He shall have general supervision of the business, affairs and
personnel of the bank and in the absence of the chairman of the board, shall
exercise the powers and perform the duties of the chairman of the board. He
shall also have and may exercise such further powers and duties as from time to
time may be conferred upon or assigned to him by the board.

      SECTION 4.4. SENIOR OFFICERS. The board may appoint one or more executive
vice presidents and one or more senior vice presidents. Each such senior officer
shall have such powers and duties as may be assigned to him by the board, the
chairman of the board, or the president.

      SECTION 4.5. VICE PRESIDENT. The board may appoint one or more vice
presidents. Each vice president shall have such powers and duties as may be
assigned to him by the board, the chairman of the board, or the president.

      SECTION 4.6. CASHIER. The board shall appoint a cashier who shall have
such powers and duties as may be assigned to him by the board, the chairman of
the board, or the president. The cashier shall be custodian of the corporate
seal, records, documents and papers of the bank. He shall provide for keeping of
proper records of all transactions of the bank.

      SECTION 4.7. SECRETARY. The board shall appoint a secretary who shall be
secretary of the bank. He shall also perform such duties as may be assigned to
him from time to time by the board. The board may appoint a secretary of the
board who shall keep accurate minutes of all meetings. He shall attend to the
giving of all notices; he shall also perform such other duties as may be
assigned to him from time to time by the board.

      SECTION 4.8. OTHER OFFICERS. The board may appoint one or more assistant
vice presidents, one or more trust officers, one or more assistant secretaries,
one or more assistant cashiers, and such other officers and attorneys-in-fact as
from time to time may appear to the board to be required or desirable to
transact the business of


                                        4

<PAGE>   24

the bank. Such officers, respectively, shall exercise such powers and perform
such duties as pertain to their several offices or as may be conferred upon or
assigned to them by the board the chairman of the board or the president.

      SECTION 4.9. CLERKS AND AGENTS. The chairman of the board, the president,
or any other active officer of the bank authorized by the chairman of the board,
or the president, may appoint and dismiss all or any paying tellers receiving
tellers note tellers, vault custodians, bookkeepers and other clerks, agents and
employees as they may deem advisable for the prompt and orderly transaction of
the business of the bank, define their duties, fix the salaries to be paid them
and the conditions of their employment.

      SECTION 4.10. RESPONSIBILITY FOR MONEYS, ETC. Each of the active officers
and clerks of this bank shall be responsible for all moneys, funds valuables and
property of every kind and description that may from time to time be entrusted
to his care or placed in his hands by the board or others, or that otherwise may
come into his possession as an active officer or clerk of this bank.

      SECTION 4.11. SURETY BONDS. All the active officers and clerks of this
bank may be covered by one of the blanket form bonds customarily written by the
surety companies, drawn for such an amount, and executed by such surety company,
as the board may from time to time require, and duly approve; or at the
discretion of the board, all such active officers and clerks shall, each for
himself, give such bond, with such security, and in such denominations as the
board may from time to time require and direct. All bonds approved by the board
shall assure the faithful and honest discharge of the respective duties of such
active officer or clerk and shall provide that such active officer or clerk
shall faithfully apply and account for all moneys, funds, valuables and property
of every kind and description that may from time to time come into his hands or
be entrusted to his care, and pay over and deliver the same to the order of the
board or to such other person or persons as may be authorized to demand and
receive the same.

      SECTION 4.12. TERM OF OFFICE - OFFICER DIRECTOR. The chairman of the
board, the vice chairman of the board and the president, together with any other
active officers who may be duly elected members of the board, shall hold their
respective offices for the current year for which the board (of which they shall
be members) was elected and until their successors are appointed, unless they
shall resign, be disqualified, or be removed; and any vacancy occurring in the
office of the chairman of the board, the vice chairman of the board, the
president, or in the board, shall, if required by these bylaws, be filled by the
remaining members.

      SECTION 4.13. TERM OF OFFICE - OFFICER. The executive vice presidents, the
senior vice presidents, the vice presidents, the assistant vice presidents, the
cashier, the secretary, the trust officers and all other officers and
attorneys-in-fact who are not duly elected members of the board, shall be
appointed to hold their offices, respectively, during the pleasure of the board.

                                   ARTICLE V

                               TRUST DEPARTMENT

      SECTION 5.1. TRUST DEPARTMENT. There shall be a department of the bank
known as the trust department which shall perform the fiduciary responsibilities
of the bank.

      SECTION 5.2. TRUST OFFICER. There shall be a senior vice president and
trust officer, or vice president and trust officer of this bank, who shall be
designated as the managing officer of the trust department and whose duties
shall be to manage, supervise and direct all the activities of the trust
department. He shall do, or cause to be done, all things necessary or proper in
carrying on the business of the trust department in accordance with provisions
of law and regulations. He shall act pursuant to opinion of counsel where such
opinion is deemed necessary. Opinions of counsel shall be retained on file in
connection with all important matters pertaining to fiduciary activities. The
trust officer shall be responsible for all assets and documents held by the bank
in connection with fiduciary matters.


                                        5

<PAGE>   25

The board may appoint such other officers of the trust department as it may deem
necessary, with such duties as may be assigned to them by the board, the
chairman of the board, or the president.

      SECTION 5.3. TRUST INVESTMENT COMMITTEE. There shall be appointed by the
board a trust investment committee of this bank composed of not less than four
members, including members ex officio provided for in other sections of these
bylaws, who shall be capable and experienced officers or directors of the bank.
All investments of funds held in a fiduciary capacity shall be made, retained or
disposed of only with the approval of the trust investment committee; and the
committee shall keep minutes of all its meetings, showing the disposition of all
matters considered and passed upon by it. The committee shall, promptly after
the acceptance of an account for which the bank has investment responsibilities,
review the assets thereof, to determine the advisability of retaining or
disposing of such assets. The committee shall conduct a similar review at least
once during each calendar year thereafter and within fifteen months of the last
such review. A report of all such reviews, together with the action taken as a
result thereof, shall be noted in the minutes of the committee. Three members of
the trust investment committee shall constitute a quorum, and any action
approved by a majority of those present shall constitute the action of the
committee.

      SECTION 5.4. TRUST AUDIT COMMITTEE. The board shall appoint a committee of
not less than three directors, including members ex officio provided for in
other sections of these bylaws, exclusive of any active officers of the bank,
which shall at least once during each calendar year and within fifteen months of
the last such audit make suitable audits of the trust department, or cause
suitable audits to be made, by auditors responsible only to the board, and at
such time shall ascertain whether the department has been administered in
accordance with law, Regulation 9, and sound fiduciary principles.
Notwithstanding the provisions of this Section, the board at any time may assign
to the Examining Committee, in addition to the duties of the Examining Committee
set forth in Section 3.3 of these bylaws, all of the duties of the Trust Audit
Committee and during such time as the Examining Committee is performing the
duties of both committees, the Trust Audit Committee shall cease to function as
a committee of this board. The board at any time may reassign the duties
provided for in this Section to the Trust Audit Committee.

      SECTION 5.5. TRUST DEPARTMENT FILES. There shall be maintained in the
trust department, files containing all fiduciary records necessary to assure
that its fiduciary responsibilities have been properly undertaken and
discharged.

      SECTION 5.6. TRUST INVESTMENTS. Funds held in a fiduciary capacity shall
be invested in accordance with the instrument establishing the fiduciary
relationship and local law. Where such instrument does not specify the character
and class of investments to be made and does not vest in the bank a discretion
in the matter, fund shield pursuant to such instrument shall be invested in
investments in which corporate fiduciaries may invest under local law.

                                   ARTICLE VI

                          STOCK AND STOCK CERTIFICATES

      SECTION 6.1. TRANSFERS. Shares of capital stock shall be transferable on
the books of the bank and a transfer book shall be kept in which all transfers
of stock shall be recorded. Every person becoming a shareholder be such transfer
shall in proportion to his shares, succeed to all rights and liabilities of the
prior holder of such shares.

      SECTION 6.2. STOCK CERTIFICATES. Certificates of capital stock shall bear
the signature of any one of, the chairman of the board, or the president (which
may be engraved, printed or impressed) and shall be signed manually or by
facsimile process by the secretary, assistant secretary, cashier, assistant
cashier, or any other officer appointed by the board for that purpose, to be
known as an authorized officer and the seal of the bank shall be engraven
thereon. Each certificate shall recite on its face that the stock represented
thereby is transferable, properly endorsed, only on the books of the bank.


                                        6

<PAGE>   26

                                   ARTICLE VII

                                 CORPORATE SEAL

      SECTION 7.1. CORPORATE SEAL. The chairman of the board, the president, the
cashier, the secretary or any assistant cashier or assistant secretary, or other
officer thereunto designated by the board, shall have authority to affix the
corporate seal to any document requiring such seal, and to attest the same. Such
seal shall be substantially in the form set forth herein.

                                  ARTICLE VIII

                       INDEMNIFYING OFFICERS AND DIRECTORS

      SECTION 8.1. INDEMNIFYING OFFICERS AND DIRECTORS. Any person, his heirs,
executors or administrators, may be indemnified or reimbursed by the bank for
reasonable expenses actually incurred in connection with any action, suit or
proceeding, civil or criminal, to which he or they shall be made a party by
reason of his being or having been a director, officer or employee of the bank
or of any firm, corporation or organization which he served in any such capacity
at the request of the bank; provided, however, that no person shall be so
indemnified or reimbursed in relation to any matter in such action, suit or
proceeding as to which he shall finally be adjudged to have been guilty of or
liable for negligence or willful misconduct in the performance of his duties to
the bank; and, provided further, that no person shall be so indemnified or
reimbursed in relation to any matter in such action, suit or proceeding which
has been made the subject of a compromise settlement except with the approval of
a court of competent jurisdiction, or the holders of record of a majority of the
outstanding shares of the bank, or the board, acting by vote of directors not
parties to the same or substantially the same action suit or proceeding,
constituting a majority of the whole number of the directors. The foregoing
right of indemnification or reimbursement shall not be exclusive of other rights
to which such person, his heirs, executors or administrators, may be entitled as
a matter of law.

                                   ARTICLE IX

                            MISCELLANEOUS PROVISIONS

      SECTION 9.1. FISCAL YEAR. The fiscal year of the bank shall be the
calendar year.

      SECTION 9.2. EXECUTION OF INSTRUMENTS. All agreements, indentures
mortgages, deeds, conveyances transfers certificates declarations, receipts,
discharges, releases, satisfactions, settlements, petitions, schedules,
accounts, affidavits, bonds, undertakings, proxies and other instruments or
documents may be signed, executed, acknowledged, verified, delivered or accepted
for the bank by the chairman of the board, or the vice chairman of the board, or
the president, or any executive vice president, or any senior vice president, or
any vice president, or the secretary or the cashier, or, if in connection with
the exercise of fiduciary powers of the bank by any of said officers or by any
officer in the trust department. Any such instruments may also be signed,
executed, acknowledged, verified, delivered or accepted for the bank in such
other manner and by such other officers as the board may from time to time
direct. The provisions of this Section 9.2 are supplementary to any other
provisions of these bylaws.

      SECTION 9.3. RECORDS. The articles of association, the bylaws, and the
proceedings of all meetings of the shareholders and of the board shall be
recorded in appropriate minute books provided for the purpose; where these
bylaws so provide, the proceedings of standing committees of the board shall be
recorded in appropriate minute books provided for the purpose.


                                        7

<PAGE>   27

                                    ARTICLE X

                                   EMERGENCIES

      SECTION 10.1. CONTINUATION OF BUSINESS. In the event of a state of
emergency of sufficient severity to interfere with the conduct and management of
the affairs of this bank, the officers and employees will continue to conduct
the affairs of the bank under such guidance from the directors as may be
available except as to matters which by statute require specific approval of the
board of directors and subject to conformance with any governmental directives
during the emergency.

      SECTION 10.2. DESIGNATION OF PLACE OF BUSINESS. The offices of the bank at
which its business shall be conducted shall be the main office thereof located
at 135 South LaSalle Street, Chicago, Illinois, and any other legally authorized
location which may be leased or acquired by this bank to carry on its business.
During an emergency resulting in any authorized place of business of this bank
being unable to function, the business ordinarily conducted at such location
shall be relocated elsewhere in suitable quarters, in addition to or in lieu of
the locations heretofore mentioned, as may be designated by the board of
directors or by the executive committee or by such persons as are then, in
accordance with resolutions adopted from time to time by the board of directors
dealing with the exercise of authority in the time of such emergency, conducting
the affairs of this bank. Any temporarily relocated place of business of this
bank shall be returned to its legally authorized location as soon as practicable
and such temporary place of business shall then be discontinued.

                                   ARTICLE XI

                                     BYLAWS

      SECTION 11.1. INSPECTION. A copy of the bylaws with all amendments
thereto, shall at all times be kept in a convenient place at the main office of
the bank and shall be open for inspection to all shareholders, during banking
hours.

      SECTION 11.2. AMENDMENTS. The bylaws may be amended, altered or repealed,
at any regular meeting of the board, by a vote of a majority of the whole number
of the directors.

                                       ***

      I..................... hereby certify that I am the.....................
Cashier/Secretary of LaSalle National Bank, Chicago, Illinois and that the
foregoing is a true and correct copy of the bylaws of this bank as amended and
that the same are in full force and effect ............. day
of...............19....


                                                 ...............................
                                                 Cashier/Secretary.

December 15, 1982

                                                                          (SEAL)


                                        8

<PAGE>   28

                                    EXHIBIT 5

                                 NOT APPLICABLE


<PAGE>   29

                                    EXHIBIT 6

LaSalle National Bank hereby consents in accordance with the provisions of
Section 321(b) of the Trust Indenture Act of 1939, that reports of examinations
by Federal, State, Territorial and District authorities may be furnished by such
authorities to the Securities and Exchange Commission upon its request therefor.



                                       LA SALLE NATIONAL BANK



                                       By:   /s/ Sarah H. Webb
                                             -----------------------------------
                                                 Sarah H. Webb
                                                 First Vice President

<PAGE>   30

                                   EXHIBIT 7

                          Latest Report of Condition of
                          Trustee published pursuant to
                          law or the requirement of its
                        surviving or examining authority.


<PAGE>   31
<TABLE>
<S>                            <C>                                     <C>                  <C>
LaSalle National Bank          Call Date:    3/31/97                   ST-BK:  17-1520      FFIEC   031
135 South LaSalle Street                                                                    Page   RC-1
Chicago, IL  60603             Vendor ID: D                            CERT:  15407         11
</TABLE>

Transit Number:  71000505

CONSOLIDATED REPORT OF CONDITION FOR INSURED COMMERCIAL AND
STATE-CHARTERED SAVINGS BANKS FOR MARCH 31, 1997

All schedules are to be reported in thousands of dollars. Unless otherwise
indicated, report the amount outstanding as of the last business day of the
quarter.

SCHEDULE RC - BALANCE SHEET

<TABLE>
<CAPTION>
                                                                                                  Dollar Amounts in Thousands
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                                     <C>       <C>        <C>    <C>         <C>      <C>
ASSETS                                                                                        RCFD
   1. Cash and balances due from depository institutions (from Schedule RC-A):                ----
      a. Noninterest-bearing balances and currency and coin(1)                                0081     594,350   1.a
      b. Interest-bearing balances(2)                                                         0071         392   1.b
   2. Securities:
      a. Held-to-maturity securities (from Schedule RC-B, column A)                           1754   1,044,435   2.a
      b. Available-for-sale securities (from Schedule RC-B, column D)                         1773   3,505,040   2.b
   3. Federal funds sold and securities purchased under agreements to resell                  1350     144,843   3.
   4. Loans and lease financing receivables:                             RCFD
      a. Loans and leases, net of unearned income                        ----
          (from Schedule RC-C)                                           2122     8,955,181                      4.a
      b. LESS: Allowance for loan and lease losses                       3123       175,944                      4.b
      c. LESS: Allocated transfer risk reserve                           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   8,779,237   4.d
   5. Trading assets (from Schedule RC-D)                                                     3545     190,980   5.
   6. Premises and fixed assets (including capitalized leases)                                2145      37,545   6.
   7. Other real estate owned (from Schedule RC-M)                                            2150       7,123   7.
   8. Investments in unconsolidated subsidiaries and associated companies (from
      Schedule RC-M)                                                                          2130           0   8.
   9. Customers' liability to this bank on acceptances outstanding                            2155       9,338   9.
  10. Intangible assets (from Schedule RC-M)                                                  2143      21,357   10.
  11. Other assets (from Schedule RC-F)                                                       2160     248,671   11.
  12. Total assets (sum of items 1 through 11)                                                2170  14,583,311   12.      14,583,311
</TABLE>

- ------------
(1)   Includes cash items in process of collection and unposted debits.

(2)   Includes time certificates of deposit not held for trading.

<PAGE>   32

<TABLE>
<S>                            <C>                                     <C>                  <C>
LaSalle National Bank          Call Date:         3/31/97              ST-BK:  17-1520      FFIEC        031
135 South LaSalle Street                                                                    Page      RC - 2
Chicago, IL  60603             Vendor ID: D                            CERT:  15407         12
</TABLE>

Transit Number:  71000505

SCHEDULE RC - CONTINUED
<TABLE>
<CAPTION>
                                                                                                   Dollar Amounts in Thousands
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                     <C>      <C>         <C>    <C>         <C>       <C>
LIABILITIES
  13. Deposits:                                                                               RCON
      a. In domestic offices (sum of totals of                                                ----
          columns A and C from Schedule RC-E, part I)                                         2200    7,705,258  13.a
                                                                         RCON
                                                                         ----
          (1) Noninterest-bearing(1)                                     6631     1,749,003                      13.a.1
          (2) Interest-bearing                                           6636     5,956,255                      13.a.2    7,705,258
                                                                                              RCFN
      b. In foreign offices, Edge and Agreement subsidiaries, and IBFs                        ----
         (from Schedule RC-E, part II)                                                        2200    1,809,656  13.b
                                                                         RCFN
                                                                         ----
          (1) Noninterest-bearing                                        6631             0                      13.b.1
          (2) Interest-bearing                                           6636     1,809,656                      13.b.2
                                                                                              RCFD
                                                                                              ----
  14. Federal funds purchased and securities sold under agreements to repurchase              2800    1,606,695  14.
                                                                                              RCON
                                                                                              ----
  15. a. Demand notes issued to the U.S. Treasury                                             2840      369,143  15.a
                                                                                              RCFD
                                                                                              ----
      b. Trading liabilities (from Schedule RC-D)                                             3548      102,955  15.b
  16. Other borrowed money (includes mortgage indebtedness and obligations under
      capitalized leases):
      a. With a remaining maturity of one year or less                                        2332    1,260,227  16.a
      b. With a remaining maturity of more than one year                                      2333       37,663  16.b
  17. Not applicable.
  18. Bank's liability on acceptances executed and outstanding                                2920        9,338  18.
  19. Subordinated notes and debentures(2)                                                    3200      396,250  19.
  20. Other liabilities (from Schedule RC-G)                                                  2930      388,123  20.
  21. Total liabilities (sum of items 13 through 20)                                          2948   13,685,308  21.      13,685,308
  22. Not applicable.

EQUITY CAPITAL                                                                                RCFD
                                                                                              ----
  23. Perpetual preferred stock and related surplus                                           3838            0  23.
  24. Common stock                                                                            3230       18,417  24.
  25. Surplus (exclude all surplus related to preferred stock)                                3839      245,636  25.
  26. a. Undivided profits and capital reserves                                               3632      637,471  26.a
      b. Net unrealized holding gains (losses) on available-for-sale securities               8434       (3,521) 26.b
  27. Cumulative foreign currency translation adjustments                                     3284            0  27.
  28. Total equity capital (sum of items 23 through 27)                                       3210      898,003  28.         898,003
  29. Total liabilities, limited-life preferred stock, and equity capital (sum of
      items 21 and 28)                                                                        3300   14,583,311  29.      14,583,311

MEMORANDUM
TO BE REPORTED ONLY WITH THE MARCH REPORT OF CONDITION.

   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                                                  RCFD      Number
                                                                                             ----      ------
      external auditors as of any date during 1996                                           6724            2  M.1
</TABLE>

1  =  Independent audit of the bank conducted in accordance with generally
      accepted auditing standards by a certified public accounting firm which
      submits a report on the bank

2  =  Independent audit of the bank's parent holding company conducted in
      accordance with generally accepted auditing standards by a certified
      public accounting firm which submits a report on the consolidated holding
      company (but not on the bank separately)

3  =  Directors' examination of the bank conducted in accordance with
      generally accepted auditing standards by a certified public accounting
      firm (may be required by state chartering authority)

4  =  Directors' examination of the bank performed by other external auditors
      (may be required by state chartering authority)

5  =  Review of the bank's financial statements by external auditors

6  =  Compilation of the bank's financial statements by external auditors

7  =  Other audit procedures (excluding tax preparation work)

8  =  No external audit work

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

(1)   Includes total demand deposits and noninterest-bearing time and savings
      deposits.

(2)   Includes limited-life preferred stock and related surplus.


<PAGE>   33


                                    EXHIBIT 8

                                 NOT APPLICABLE


<PAGE>   34

                                    EXHIBIT 9

                                 NOT APPLICABLE


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission