NAI TECHNOLOGIES INC
SC 13D, 1996-02-26
COMPUTER TERMINALS
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                  SCHEDULE 13D


                    Under the Securities Exchange Act of 1934
                               (Amendment No. __)


                             NAI TECHNOLOGIES, INC.
        ---------------------------------------------------------------
                                (Name of Issuer)

                          Common Stock, $0.10 par value
        ---------------------------------------------------------------
                         (Title of Class of Securities)

                                   657305 108
        ---------------------------------------------------------------
                                 (CUSIP Number)

                                Charles S. Holmes
                                  P.O. Box 2850
                              Southampton, NY 11969
        ---------------------------------------------------------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                February 15, 1996
        ---------------------------------------------------------------
                      (Date of Event which Requires Filing
                               of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box |_| .

Check the following box if a fee is being paid with this statement |X| .



                        (Continued on following page(s))

                               Page 1 of 66 Pages

                         Exhibit Index Appears on Page 7



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                                                             Page 2 of 66 Pages

CUSIP No.  657305 108

1        NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Charles S. Holmes
- -----------------------------------------------------------------

2        CHECK THE APPROPRIATE BOX IF A MEMBER         (a) |_|

         OF A GROUP                                    (b) |_|
- -----------------------------------------------------------------

3        SEC USE ONLY
- -----------------------------------------------------------------

4        SOURCE OF FUNDS                                   PF
- -----------------------------------------------------------------

5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS      |_|

         IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)
- -----------------------------------------------------------------

6        CITIZENSHIP OR PLACE OF ORGANIZATION              U.S.A.
- ----------------------------------------------------------------

   NUMBER                  7        SOLE VOTING POWER      2,700,000* shares
     OF                    _________________________________________________
   SHARES
BENEFICIALLY               8        SHARED VOTING POWER
    OWNED                  __________________________________________________
     BY
    EACH                   9        SOLE DISPOSITIVE POWER 2,700,000* shares
  REPORTING                __________________________________________________
   PERSON
    WITH                   10       SHARED DISPOSITIVE POWER
- -----------------------------------------------------------------

11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
         PERSON                                            2,700,000* shares
- -----------------------------------------------------------------

12       CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES   |_|

         CERTAIN SHARES
- -----------------------------------------------------------------

13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)   26.6%*
- -----------------------------------------------------------------

14       TYPE OF REPORTING PERSON            IN
- --------
*        See Item 5 hereof.


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Item 1.  Security and Issuer.

                  This  Statement  on  Schedule  13D relates to shares of Common
Stock, par value $.10 per share (the "Common Stock"), of NAI Technologies, Inc.,
a New York corporation (the "Company"),  whose principal  executive  offices are
located at 2405 Trade Centre Avenue, Longmont, Colorado
80503.

Item 2.  Identity and Background.

                  (a)-(c)  This  Statement  is filed by Charles S.  Holmes,  the
President and sole stockholder of Asset Management Associates of New York, Inc.,
a New York based firm specializing in acquisitions of manufacturing  businesses,
whose executive office is located at P.O. Box 2850, Southampton, New York 11969.

                  (d)-(f)  During the five years prior to the date  hereof,  Mr.
Holmes  has not been  convicted  in a  criminal  proceeding  (excluding  traffic
violations  or  similar  misdemeanors)  or a party  to a civil  proceeding  of a
judicial or administrative body of competent jurisdiction,  as a result of which
he was or is subject  to a  judgment,  decree or final  order  enjoining  future
violations  of, or prohibiting  or mandating  activities  subject to, federal or
state  securities  laws or finding any violation  with respect to such laws. Mr.
Holmes is a United States citizen.

Item 3. Source and Amount of Funds or Other Consideration.

                  As of the date hereof,  Mr. Holmes has expended  approximately
$2,000,000 in cash for the purchase of (i) $2,000,000 aggregate principal amount
of the Company's 12%  Convertible  Subordinated  Promissory  Notes due 2001 (the
"Notes"), which are convertible at the option of the holder at any time in whole
or in part into  shares of Common  Stock of the  Company at a  conversion  price
equal to  $2.00  per  share,  subject  to  adjustment  in  certain  events  (the
"Conversion  Price"),  and (ii)  warrants to purchase  500,000  shares of Common
Stock of the Company,  subject to adjustment in certain events (the "Warrants").
Based on the current  Conversion Price, the Notes are convertible into 1,000,000
shares of Common Stock of the  Company.  The funds for the purchase of the Notes
and the Warrants came from Mr. Holmes' personal funds.

                  In  addition,  the Company  granted to Mr.  Holmes  additional
warrants to purchase 1,200,000 shares of Common Stock for past advisory services
in connection with the Private Placement  discussed in Item 6 and the engagement
of Commonwealth  Associates as the Company's  placement  agent (the  "Additional
Warrants").

                                       -3-


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Item 4.  Purpose of the Transaction.

                  Mr. Holmes purchased the Notes and the Warrants for investment
purposes.  In connection with such  investment,  Mr. Holmes became a director of
the  Company and was granted the right to  designate  one  additional  person to
serve as a director of the Company  through  December  31,  2001.  Reference  is
hereby  made  to  Item  6  hereof  for  a  description  of  certain   contracts,
arrangements,   understandings  and  relationships  relating  to  the  Company's
securities.

                  Although Mr. Holmes has not formulated  any  definitive  plans
not set  forth  herein,  he may from time to time  continue  to  acquire,  or to
dispose of, the Notes, the Warrants, Common Stock and/or other securities of the
Company if and when he deems it  appropriate.  He may formulate  other purposes,
plans or  proposals  relating  to any of such  securities  of the Company to the
extent he deems it advisable in light of market conditions,  investment policies
and other factors.

                  Except as indicated in this Schedule 13D, Mr. Holmes currently
has no specific  plans or proposals that relate to or would result in any of the
matters described in subparagraphs (a) through (j) of Item 4 of Schedule 13D.

Item 5.  Interest in Securities of the Issuer.

                  (a) Based on the Company's proxy  statement,  dated January 5,
1996,  for its Special  Meeting of  Shareholders  held on February 1, 1996,  the
Company had a total of 7,459,437  shares of Common Stock issued and  outstanding
as of  December  15,  1995.  As a result  of his  purchase  of the Notes and the
Warrants and his ownership of the Additional Warrants,  Mr. Holmes currently may
be deemed to own  beneficially  2,700,000 shares of Common Stock of the Company,
constituting 26.6% of the Company's total outstanding shares of Common Stock, as
determined in accordance with Rule 13d-3 of the Securities Exchange Act of 1934,
as amended (the "Exchange Act"). It should be noted that, as a result of certain
provisions in the Notes and the Warrants and the Additional  Warrants more fully
discussed in Item 6, the number of shares of Common  Stock which Mr.  Holmes may
be entitled  to receive  upon  conversion  of the Notes  and/or  exercise of the
Warrants and the Additional Warrants is subject to change.

                  Except as set forth in the  immediately  preceding  paragraph,
Mr. Holmes does not own any shares of Common Stock of the Company and is not the
"beneficial  owner" of any such shares,  as such term is defined in the Exchange
Act or the rules and regulations thereunder.

                                       -4-



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                  (b) Mr.  Holmes  does not possess the power to vote or dispose
of any shares of Common  Stock of the  Company  unless  the Notes are  converted
into, and the Warrants and the Additional  Warrants are exercised for, shares of
Common Stock of the Company, which Mr. Holmes has no current intention of doing.
Only in the event of such conversion and/or exercise may Mr. Holmes be deemed to
have the sole  power to vote and  dispose  of,  and to  direct  the  voting  and
disposition of, the 2,700,000 shares of Common Stock referenced above.

                  (c)  Except  as  set  forth   herein,   Mr.  Holmes  does  not
beneficially  own any shares of Common  Stock of the Company and has not engaged
in any  transaction  in any such shares during the sixty day period  immediately
preceding the date hereof.

                  (d) & (e)  Inapplicable.

Item 6.           Contracts, Arrangements, Understandings or
                  Relationships with Respect to Securities
                  of the Issuer.

                  In October 1995, Mr. Holmes purchased from the Company its 12%
Subordinated Promissory Note due 1996 in the principal amount of $1,000,000 (the
"October Note") pursuant to a Securities Purchase Agreement, dated as of October
13,  1995 (the  "Purchase  Agreement"),  between  the  Company  and Mr.  Holmes.
Pursuant to the Purchase  Agreement,  the Company agreed to use its best efforts
to cause Mr. Holmes or another  individual  designated by him to be appointed to
the Board of Directors of the Company as promptly  thereafter  as possible.  Mr.
Holmes became a director of the Company in October  1995. In addition,  pursuant
to the Purchase  Agreement,  the Company agreed (i) to exchange the October Note
in its entirety for an  identical  principal  amount of notes issued and sold by
the  Company  in  connection  with its  proposed  private  placement  of its 12%
Convertible  Subordinated  Promissory Notes due 2001 in the aggregate  principal
amount of approximately $8,000,000 together with warrants representing the right
to acquire Common Stock (the "Private  Placement")  and, (ii) in connection with
such  exchange,  to issue to Mr. Holmes  warrants to purchase  850,000 shares of
Common Stock with substantially the same terms and conditions as the warrants to
be issued and sold by the Company in connection with the Private Placement.

                  In December  1995,  Mr.  Holmes  purchased  from the Company a
second  Subordinated  Promissory  Note  due  1996  in the  principal  amount  of
$1,000,000  (the  "December  Note")  pursuant to an Amendment and  Supplement to
Securities Purchase Agreement, dated as of December 14, 1995 (as so amended, the
"Amended Agreement"), between the Company and

                                       -5-


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Mr.  Holmes.  Pursuant  to the  Amended  Agreement,  the  Company  agreed (i) to
exchange the December Note in its entirety for an identical  principal amount of
notes issued and sold by the Company in  connection  with the Private  Placement
and (ii) to issue Mr. Holmes  warrants to purchase an additional  850,000 shares
of Common Stock with substantially the same terms and conditions as the warrants
to be issued and sold by the Company in connection with the Private Placement.

                  The Private  Placement  was  consummated  on February 15, 1996
and, in  connection  therewith,  Mr.  Holmes  exchanged the October Note and the
December  Note for the  Notes  and  received  the  Warrants  and the  Additional
Warrants.

                  Pursuant to the terms of the Notes,  the Conversion Price will
be  adjusted  from $2.00 to $1.50 or $1.00,  respectively,  if  earnings  before
interest,  taxes,  depreciation  and  amortization  of the  Company  fall  below
$6,000,000 or  $4,750,000,  respectively,  in 1996.  Should the Company sell the
stock or assets of a subsidiary in 1996, such amounts will be reduced by certain
agreed  amounts,  depending on the time of sale.  The  Conversion  Price and the
number of shares of Common Stock to be received upon conversion are also subject
to  adjustment  upon the  occurrence of certain  events.  The Company may at its
option  require  the  conversion  of the  Notes at any time  prior to  maturity,
provided that the closing bid price for the Common Stock exceeds $6.00 per share
for the 30 consecutive trading days prior to the giving of notice of conversion.
Pursuant to the terms of the Warrants and the Additional Warrants, the number of
shares of Common Stock to be received  upon  exercise are subject to  adjustment
upon the  occurrence  of certain  events.  As a result of such  provisions,  the
number of shares of Common  Stock  which Mr.  Holmes may be  entitled to receive
upon  conversion of the Notes and/or exercise of the Warrants and the Additional
Warrants is subject to change.

                  The foregoing  descriptions  of the Notes and the Warrants and
the Additional  Warrants are summaries of certain of the provisions  thereof and
reference is made to the copies of such instruments which are attached hereto as
Exhibits  and  incorporated  herein  by  reference  for all of their  terms  and
conditions.

                  In connection with the Private Placement,  the Company entered
into a Placement Agency Agreement, dated as of December 15, 1995 (the "Placement
Agency  Agreement"),  with  Commonwealth  Associates.  Pursuant to the Placement
Agency  Agreement,  the  Company  agreed  to cause two  members  of its Board of
Directors to resign as directors on or reasonably  promptly after the closing of
the offering. The Company further agreed that Mr. Holmes shall have the right

                                       -6-



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through  December 31, 2001 to designate  two persons  (including  himself) to be
members of the Board of  Directors of the Company  while C. Shelton  James shall
have the  right  to  designate  one  person.  Two  directors  resigned  from the
Company's Board effective  February 15, 1996 but Mr. Holmes has yet to designate
an individual to fill one of the two vacancies.

                  Except as described herein, Mr. Holmes has no other contracts,
arrangements,  understandings or relationships  with any persons with respect to
any securities of the Company.  Mr. Holmes  reserves the right to enter into any
such contracts, arrangements, understandings or relationships in the future.

<TABLE>
<CAPTION>
Item 7.  Material to be Filed as Exhibits.             Page

<S>               <C>                                                                                <C>
1                 12% Convertible Subordinated Promissory
                  Note due 2001 in the principal amount of
                  $2,000,000 issued to Mr. Holmes                                                      3

2                 Warrant to Purchase Common Stock issued
                  to Mr. Holmes                                                                        3

3                 Registration Rights Agreement between the
                  Company and Mr. Holmes                                                               6
</TABLE>

                                       -7-



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                                    SIGNATURE


                  After  reasonable  inquiry and to the best of my knowledge and
belief,  I certify  that the  information  set forth in this  statement is true,
complete and correct.

Date:  February 23, 1996


                                            /s/ CHARLES S. HOLMES
                                            -------------------------------
                                            Charles S. Holmes


                                       -8-


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                                                                       EXHIBIT 1



NO. A-009                                                             $2,000,000


                             NAI TECHNOLOGIES, INC.

                  12% CONVERTIBLE SUBORDINATED PROMISSORY NOTE

                         MATURITY DATE: JANUARY 15, 2001

THIS NOTE AND THE COMMON  STOCK THAT MAY BE ISSUABLE  TO THE HOLDER  HEREOF HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE
SOLD, PLEDGED, HYPOTHECATED, DONATED OR OTHERWISE TRANSFERRED WITHOUT COMPLIANCE
WITH THE  REGISTRATION  OR  QUALIFICATION  PROVISIONS OF APPLICABLE  FEDERAL AND
STATE SECURITIES LAWS OR APPLICABLE EXEMPTIONS THEREFROM.

                  FOR  VALUE  RECEIVED,  NAI  TECHNOLOGIES,  INC.,  a  New  York
corporation  (the  "Company"),  promises  to  pay  to  CHARLES  S.  HOLMES,  the
registered  holder or registered  assigns hereof (the  "Holder"),  the principal
amount of Two  Million  Dollars  ($2,000,000)  payable on the  fifteenth  day of
January 2001 (the "Maturity  Date"),  together with interest on the  outstanding
principal  amount  of this Note at the rate of  twelve  percent  (12%) per annum
calculated  on the basis of a 360 day  year,  such  interest  to be  payable  in
arrears on a quarterly  basis on the fifteenth day of January,  April,  July and
October  of each  year,  commencing  on April 15,  1996.  In the event  that any
payment  of any  principal  and/or  interest  hereunder  is not paid when due as
provided for herein,  and without affecting any of the Holder's other rights and
remedies,  the unpaid principal  balance hereof shall thereafter accrue interest
at the defaulted rate specified in Section 11(a) of this Note.

                  This Note is one of a series of the Company's 12%  Convertible
Subordinated  Promissory Notes (collectively,  the "Notes"),  issued pursuant to
that certain Confidential Private Placement Memorandum, dated December 15, 1995,
as supplemented  (the  "Memorandum").  Capitalized  terms used and not otherwise
defined herein shall have the respective  meanings attributed thereto in Section
13.

                  1.       Payments and Prepayments.

          (a) Payments of  principal  and interest on this Note shall be made at
     the principal  office of the Company,  located at 2405 Trade Centre Avenue,
     Longmont,  Colorado  80503, or such other place or places within the United
     States as may be specified  by the Holder of this Note in a written  notice
     to the Company at least ten (10) business days before a given payment date.




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          (b) Payments of  principal  and interest on this Note shall be made in
     lawful money of the United States of America by mailing the Company's  good
     check in the proper  amount to the Holder at least  three days prior to the
     due  date of each  payment  or  otherwise  transferring  funds  so as to be
     received  by the  Holder  on the due date of each such  payment;  provided,
     however,  that, in the event that the  principal  amount of this Note is at
     least  $1,000,000,  the Company  shall make payment by wire  transfer to an
     account  such  Holder may  specify in writing to the Company at least three
     days prior to the due date of each payment.

          (c) If any payment on this Note becomes due and payable on a Saturday,
     Sunday or other  day on which  commercial  banks in New York,  New York are
     authorized  or  required by law to close,  the  maturity  thereof  shall be
     extended to the next succeeding  business day and, with respect to payments
     of principal,  interest  thereon shall be payable  during such extension at
     the then applicable rate.

          (d) Subject to the  provisions of Section 4 and 5 below,  this Note is
     subject  to  prepayment,  in whole  but not in part,  at the  option of the
     Company,  at any time  after  the  third  anniversary  of the date  hereof,
     without  premium  or  penalty.  In the  event  of any  partial  payment  of
     principal or accrued interest, for whatever reason, or prepayment, any such
     partial payment of principal  and/or interest or prepayment of principal on
     the Notes shall be allocated among the respective Notes and holders thereof
     so that the amount of such  payments to each holder shall bear as nearly as
     practicable  the same ratio to the aggregate  amount then to be paid as the
     principal  amount  of the  Notes  then  held by such  holder  bears  to the
     aggregate principal amount of Notes then outstanding.

          (e) The Company will give the Holder  written  notice  indicating  the
     amount of any  prepayment and the proposed date thereof not more than sixty
     (60) days and not less than thirty  (30) days prior to any such  prepayment
     of this Note.

          (f) Subject to the  provisions of Sections 4 and 5 below,  the Company
     shall,  within thirty (30)  business days of the  occurrence of a Change in
     Control (as defined in Section 13 hereof),  offer, by written notice to the
     Holder in  accordance  with Section 1(e), to prepay this Note, in whole and
     not in part,  without  premium or  penalty.  Holder may accept the offer to
     prepay  made  pursuant  to this  Section  1(f) by  causing  notice  of such
     acceptance  to be  delivered to the Company at least ten (10) days prior to
     the proposed  prepayment  date (or such longer period as may be required by
     law). A failure by Holder to respond to an offer to prepay pursuant to this
     Section 1(f) within the requisite time period shall be deemed to constitute
     a rejection of such offer.

                  2. Obligation  Absolute.  The obligations  under this Note are
absolute  and  unconditional  obligations  of the Company  and no  modification,
release,   consent,   waiver,   rearrangement  or  amendment  shall  impair  the
obligations of the Company hereunder.


                                        2


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                  3.  Security.  The  payment  of this  Note  and the  Company's
obligations  hereunder,  and  under  the  Warrant  and the  Registration  Rights
Agreement (as such terms are defined in the  Memorandum)  are not secured by any
collateral.

                  4.  Subordination.  (a) The Company for itself, its successors
and assigns,  covenants and agrees, and each Holder of this Note, its successors
and assigns,  by its acceptance of this Note likewise covenants and agrees, that
to the extent  provided  below the payment of the  principal  of and interest on
this Note is hereby expressly  subordinated  and junior in right of payment,  to
the extent and in the manner  hereinafter set forth, to all Senior  Indebtedness
(as hereinafter  defined).  For purposes hereof,  Senior Indebtedness is defined
as:

          (i) the principal of,  premium,  if any, and any interest  (including,
     without limitation,  any interest on interest and post-bankruptcy  petition
     interest)  on,  all   liabilities  of  the  Company   (including,   without
     limitation,  all  liabilities  of the Company with respect to any costs and
     expenses),  direct or contingent,  joint,  several or  independent,  now or
     hereafter  existing,  due or to become  due,  whether  created  directly or
     acquired by assignment  or  otherwise,  under or in respect of that certain
     Amended and Restated Credit  Agreement,  dated as of April 12, 1995,  among
     the  Company,  The Bank of New York,  Chemical  Bank and the other  parties
     referred to therein (as heretofore and as hereafter  amended,  modified and
     supplemented from time to time, the "Bank Credit Agreement") and any of the
     other Loan Documents (as defined in the Bank Credit Agreement); and

          (ii) all  extensions,  renewals and refundings of any of the foregoing
     (provided  that the amount of any debt  incurred  in  connection  with such
     extension,  renewal  or  refunding  does  not  exceed  the  amount  of  the
     outstanding  obligations of the Company under the Bank Credit  Agreement at
     the time of the  extension,  renewal or refunding  (whether  for  interest,
     principal  or  fees,  or  expenses   incurred  by  the  holders  of  Senior
     Indebtedness  for the  protection of  collateral  and  reasonable  costs of
     collection));

provided,  however,  that the term "Senior  Indebtedness"  shall not include any
indebtedness  expressly subordinated in writing to the Notes or any indebtedness
owed to affiliates of the Company.

                  (b) Upon the  acceleration of any Senior  Indebtedness or upon
the maturity of the entire principal amount of any Senior  Indebtedness by lapse
of time, acceleration or otherwise,  all such Senior Indebtedness which has been
so  accelerated or matured shall first  indefeasibly  be paid in full before any
payment is made by the Company or any person  acting on behalf of the Company on
account of any obligations evidenced by this Note.

                  (c) Notwithstanding anything to the contrary contained herein,
the Company shall not (i) pay any principal  portion of this Note so long as any
Senior  Indebtedness  remains outstanding or (ii) pay any interest payable under
this Note if there exists a Default or

                                        3


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Event of Default (as such terms are defined in the instruments evidencing Senior
Indebtedness) with respect to any Senior Indebtedness  (hereinafter  referred to
as a "Blockage Event").

                  The Company  shall resume  payment of interest  payable  under
this Note and a Blockage Event shall be deemed to have terminated:

          (i) when such Default or Event of Default on Senior  Indebtedness,  as
     applicable, is cured or waived;

          (ii) when the Holder hereof shall have cured any such Default or Event
     of Default on Senior  Indebtedness  to the extent such  Default or Event of
     Default can be cured by payment of money,  which  amount  shall be added to
     the principal amount owing to the Holder pursuant to this Note; or

          (iii)  180 days  after  the  occurrence  of such  Default  or Event of
     Default,  provided,  that  at  the  end of  such  180  days,  if any of the
     following events exists or occurs, the Blockage Event shall continue: (A) a
     Default in payment of any amount with  respect to the Senior  Indebtedness;
     (B) an acceleration of the Senior Indebtedness; or (C) the occurrence of an
     event of the type described in Section 5 hereof, provided,  further, that a
     Blockage  Event  with  respect  to a single  specified  Default or Event of
     Default may be deemed to occur only once for each 360 day period.

                  (d) At any time there exists a Blockage Event, (i) the Company
shall not,  directly or  indirectly,  make any payment of any part of this Note,
(ii) the Holder  hereof shall not demand or accept from the Company or any other
person any such payment or cancel,  set-off or otherwise  discharge  any part of
the indebtedness represented by this Note, and (iii) neither the Company nor the
Holder  hereof  shall  otherwise  take or permit  any action  prejudicial  to or
inconsistent  with the  priority  position of any holder of Senior  Indebtedness
over the  Holder  of this  Note.  Notwithstanding  the  foregoing  or any  other
provision of this Note to the contrary,  the  occurrence  and  continuance  of a
Blockage Event shall not limit or in any other manner affect the exercise of the
Holder's conversion rights pursuant to Section 6.

                  (e) Any holder of Senior  Indebtedness is hereby authorized to
demand specific  performance of this Note, whether or not the Company shall have
complied  with the  provisions  hereof  applicable  to it,  at any time when the
Holder hereof shall have failed to comply with any provision  hereof  applicable
to such Holder.  The Holder hereby  irrevocably  waives any defense based on the
adequacy  of a remedy at law which  might be  asserted as a bar to the remedy of
specific  performance  hereof in any action  brought  therefor  by any holder of
Senior Indebtedness.  The Holder further (i) waives presentment,  demand, notice
and protest in connection  with all  negotiable  instruments  evidencing  Senior
Indebtedness,  notice of any loan made,  extension granted or other action taken
in reliance  hereon and all demands and notices of every kind in connection with
this Note or Senior Indebtedness;  and (ii) assents to any renewal, extension or
postponement of the time of payment of Senior Indebtedness or any other

                                        4


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indulgence with respect  thereto,  to any  substitution,  exchange or release of
collateral  therefor and to the  addition or release of any person  primarily or
secondarily liable thereon.

                  (f) The  Company and the Holder  shall  execute and deliver to
any holder of Senior  Indebtedness such further  instruments and shall take such
further  action as such holder of Senior  Indebtedness  may at any time or times
reasonably  request in order to evidence the  subordination  of the  obligations
hereunder and to otherwise carry out the provisions and intent of this Note.

                  (g) No right of any holder of Senior  Indebtedness  to enforce
the  subordination of the obligations shall be impaired by any act or failure to
act by the Company or the Holder or by their failure to comply with this Note or
any  other  agreement  or  document  evidencing,  related  to  or  securing  the
obligations  hereunder.  Without  in any  way  limiting  the  generality  of the
preceding sentence, the holders of Senior Indebtedness may, at any time and from
time to time, without the consent of or notice to the Holder,  without incurring
responsibility   to  the  Holder  and  without   impairing  or   releasing   the
subordination  provided in this Note or the  obligations of the Holder hereof to
the holders of Senior  Indebtedness,  do any one or more of the  following:  (i)
change the manner,  place or terms of payment of, or renew or alter,  any Senior
Indebtedness,  or  otherwise  amend or  supplement  in any  manner,  any  Senior
Indebtedness,  or  otherwise  amend or  supplement  in any  manner,  any  Senior
Indebtedness or any instrument  evidencing the same or any agreement under which
Senior Indebtedness is outstanding;  (ii) sell,  exchange,  release or otherwise
deal with any  property  pledged,  mortgaged  or  otherwise  securing any Senior
Indebtedness;  (iii)  release any Person or entity  liable in any manner for the
collection  of any  Senior  Indebtedness;  and (iv)  exercise  or  refrain  from
exercising any rights against the Company or any other Person or entity.

                  (h) In the event that the  Company  shall make any  payment or
prepayment to the Holder on account of the obligations  under this Note which is
prohibited by this Section 4, such payment shall be held by the Holder, in trust
for the  benefit  of, and shall be paid  forthwith  over and  delivered  to, the
holders of Senior Indebtedness (pro rata as to each of such holders on the basis
of the respective amounts and priorities of Senior Indebtedness held by them) to
the extent  necessary  to pay all  Senior  Indebtedness  due to such  holders of
Senior  Indebtedness  in full in accordance  with its terms (whether or not such
Senior  Indebtedness  is due and owing),  after giving effect to any  concurrent
payment or distribution to or for the holders of such Senior Indebtedness.

                  (i) After all Senior Indebtedness indefeasibly is paid in full
and until the obligations  under this Note are paid in full, the Holder shall be
subrogated  to the rights of holders of Senior  Indebtedness  to the extent that
distributions  otherwise  payable to the Holder have been applied to the payment
of Senior  Indebtedness.  For  purposes  of such  subrogation,  no  payments  or
distributions  to holders of such Senior  Indebtedness of any cash,  property or
securities  to which the Holder would be entitled  except for the  provisions of
this Section 4 and no payment over pursuant to the  provisions of this Section 4
to holders of such  Senior  Indebtedness  by the Holder,  shall,  as between the
Company, its creditors, other than holders of

                                        5


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<PAGE>



such  Senior  Indebtedness,  and the  Holder,  be deemed to be a payment  by the
Company to or on account of such Senior  Indebtedness,  it being understood that
the  provisions  of this  Section 4 are solely for the purpose of  defining  the
relative rights of the holders of such Senior Indebtedness, on the one hand, and
the Holder hereof, on the other hand.

                  5.  Primacy  of  Senior  Indebtedness  Claims as  Against  the
Holder. In any insolvency, receivership, bankruptcy, dissolution, liquidation or
reorganization  proceeding,  or in any other  proceeding,  whether  voluntary or
involuntary, by or against the Company under any bankruptcy or insolvency law or
laws relating to relief of debtors, to compositions, extensions or readjustments
of indebtedness:

          (a) the  claims of any  holders  of Senior  Indebtedness  against  the
     Company  shall be paid  indefeasibly  in full in cash before any payment is
     made to the Holder;

          (b) until all Senior Indebtedness is indefeasibly paid in full in cash
     any distribution to which the Holder would be entitled but for this Section
     5 shall be made to holders of Senior Indebtedness; and

          (c) the  holders  of  Senior  Indebtedness  shall  have  the  right to
     enforce,  collect and receive every such payment or  distribution  and give
     acquittance  therefor.  In furtherance of the foregoing,  in the event that
     the  Company  shall  file or have filed  against  it a  petition  under any
     chapter of Title 11 of the United  States Code or any  comparable  statute,
     with the result that the Company is excused from the  obligation to pay all
     or any part of the  amount  otherwise  payable  in  respect  of the  Senior
     Indebtedness  during  the period  subsequent  to the  commencement  of such
     proceedings,  the Holder  agrees that all or such part of such amount shall
     be payable  out of, and to that extent  diminish  and be at the expense of,
     the Holder's reorganization  dividends or other distributions in respect of
     any claim filed by it as a creditor or  interest  holder.  In the event the
     holders of Senior Indebtedness receive amounts in excess of payment in full
     (in cash) of amounts outstanding in respect of Senior Indebtedness (without
     giving effect to whether claims in respect of the Senior  Indebtedness  are
     allowed  in  any  insolvency   proceeding),   the  holders  of  the  Senior
     Indebtedness shall pay such excess amounts to the Holder.

                  6.  Conversion.  The  Holder of this Note will have the right,
exercisable at any time on or before the Maturity Date, by notice to the Company
at its  principal  office,  at the Holder's  option,  to convert the then unpaid
principal  amount  of this  Note  (or any  portion  hereof  that is an  integral
multiple  of  $1,000)  into 500 fully paid and  non-assessable  shares of common
stock,  par value $.10 per share,  of the Company (the "Common  Stock") for each
$1,000 face amount of this Note,  representing a conversion price equal to $2.00
per share,  subject to adjustment as set forth below (the  "Conversion  Price").
The Company may at any time, by notice to the Holder,  require the conversion of
this Note in  accordance  with this  Section  6, and the Holder  shall  promptly
surrender  this Note for  conversion  following  such notice,  provided that the
Closing  Price for the Common  Stock for thirty (30)  consecutive  trading  days
prior to such notice is equal to or greater than $6.00 per share.

                                        6


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<PAGE>




                  Subject to the right of the  Holder on the date of  conversion
to receive all interest on such Note accrued through such date of conversion, no
adjustment  for interest or dividends  will be made upon the  conversion of this
Note. No fractional shares will be issued upon conversion, but if the conversion
results in a fraction,  the fair market value of such fractional share of Common
Stock (which shall be the closing price of such shares on the exchange or market
on which the Common  Stock is then  traded) will be paid by the Company in cash.
This right of  conversion  shall cease upon payment in full of all principal and
interest  and other  amounts due in respect of this Note.  Nothing  contained in
this  paragraph  shall  authorize the payment of interest to the Holder when the
terms of this Note otherwise prohibit the same.

                  The occurrence of any of the following events shall trigger an
adjustment from time to time to the Conversion Price and the number of shares of
Common Stock into which this Note shall be converted (the "Conversion Shares"):

          (a)   Recapitalization,   Reclassification  and  Succession.   If  any
     recapitalization  of the Company or reclassification of its Common Stock or
     any merger or  consolidation  of the Company into or with a corporation  or
     other business entity,  or the sale or transfer of all or substantially all
     of the  Company's  assets or of any successor  corporation's  assets to any
     other  corporation  or  business  entity  (any  such  corporation  or other
     business  entity being included  within the meaning of the term  "successor
     corporation")  shall be  effected,  at any time  while  this  Note  remains
     outstanding,    then,   as   a   condition   of   such    recapitalization,
     reclassification,  merger,  consolidation,  sale or  transfer,  lawful  and
     adequate provision shall be made whereby the Holder of this Note thereafter
     shall have the right to receive upon the  conversion  hereof as provided in
     this  Section  6 and in lieu of the  shares  of  Common  Stock  immediately
     theretofore  issuable  upon the  conversion  of this Note,  such  shares of
     capital  stock,  securities  or other  property as may be issued or payable
     with respect to or in exchange for a number of outstanding shares of Common
     Stock equal to the number of shares of Common Stock immediately theretofore
     issuable  upon the  conversion  of this  Note  had  such  recapitalization,
     reclassification,  merger, consolidation, sale or transfer not taken place,
     and in each such case,  the terms of this Note shall be  applicable  to the
     shares  of  stock or  other  securities  or  property  receivable  upon the
     conversion of this Note after such consummation.

                  (b)  Subdivision or  Combination of Shares.  If the Company at
any time while this Note  remains  outstanding  shall  subdivide  or combine its
Common  Stock,  the  Conversion  Price  and  the  Conversion   Shares  shall  be
proportionately adjusted.

                  (c) Stock Dividends and  Distributions.  If the Company at any
time while this Note is outstanding shall issue or pay the holders of its Common
Stock,  or take a record of the  holders of its Common  Stock for the purpose of
entitling  them to receive,  a dividend  payable in, or other  distribution  of,
Common Stock, then (i) the Conversion Price shall be adjusted in accordance with
Section 6(e) and (ii) the number of  Conversion  Shares shall be adjusted to the
number of shares of Common  Stock that the Holder  would have owned  immediately
following such action had this Note been converted immediately prior thereto.


                                        7


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<PAGE>



                  (d) Stock and Rights Offering to Shareholders.  If at any time
after the date of issuance of this Note, the Company shall issue or sell, or fix
a record  date for the  purposes  of  entitling  holders of its Common  Stock to
receive,  (i) Common Stock or (ii)  rights,  options or warrants  entitling  the
holders  thereof  to  subscribe  for or  purchase  Common  Stock (or  securities
convertible or exchangeable  into or exercisable for Common Stock),  in any such
case, at a price per share (or having a conversion,  exchange or exercise  price
per share)  that is less than the lowest  Closing  Price  during the twenty (20)
consecutive trading days immediately preceding the date of such issuance or sale
or such record date then, immediately after the date of such issuance or sale or
on such record date,  (A) the  Conversion  Price shall be adjusted in accordance
with Section 6(e) and (B) the number of  Conversion  Shares shall be adjusted to
that  number   determined  by  multiplying  the  number  of  Conversion   Shares
immediately  before the date of such  issuance  or sale or such record date by a
fraction,  the denominator of which will be the number of shares of Common Stock
outstanding  on such date plus the  number  of shares of Common  Stock  that the
aggregate  offering  price  of  the  total  number  of  shares  so  offered  for
subscription or purchase (or the aggregate initial  conversion  price,  exchange
price or exercise price of the convertible securities or exchangeable securities
or rights,  options or warrants,  as the case may be, so offered) would purchase
at such Closing  Price,  and the numerator of which will be the number of shares
of Common Stock outstanding on such date plus the number of additional shares of
Common Stock offered for subscription or purchase (or into which the convertible
or  exchangeable  securities  or rights,  options  or  warrants  so offered  are
initially convertible or exchangeable or exercisable, as the case may be).

                  If the Company shall at any time after the date of issuance of
this Note  distribute  to all holders of its Common  Stock any shares of capital
stock of the Company (other than Common Stock) or evidences of its  indebtedness
or assets (excluding cash dividends or distributions paid from retained earnings
or current year's or prior year's earnings of the Company) or rights or warrants
to subscribe for or purchase any of its securities  (excluding those referred to
in the immediately  preceding  paragraph)(any of the foregoing being hereinafter
in this paragraph called the "Securities"),  then in each such case, the Company
shall reserve shares or other units of such  securities for  distribution to the
Holder upon conversion of this Note so that, in addition to the shares of Common
Stock to which such  Holder is  entitled,  such Holder  will  receive  upon such
exercise  the amount and kind of such  Securities  which such Holder  would have
received  if the  Holder  had,  immediately  prior  to the  record  date for the
distribution of the Securities, converted this Note.

                  (e)  Conversion  Price  Adjustment.  Whenever  the  number  of
Conversion Shares is adjusted, as herein provided,  the Conversion Price payable
upon the  conversion of this Note shall be adjusted to that price  determined by
multiplying  the  Conversion  Price  immediately  prior to such  adjustment by a
fraction  (i) the  numerator of which shall be the number of  Conversion  Shares
immediately prior to such adjustment, and (ii) the denominator of which shall be
the number of Conversion Shares immediately thereafter.

                  (f)  1996  EBITDA  Adjustment.   The  Conversion  Price  shall
additionally be adjusted in the following circumstances:

                                        8


<PAGE>
<PAGE>




          (i) if the Company  shall achieve 1996 EBITDA (as such term is defined
     in  Section  13(h)) in an amount of less than  $6,000,000,  the  Conversion
     Price shall be reduced to $1.50 per share; and

          (ii) if the  Company  shall  achieve  1996 EBITDA in an amount of less
     than $4,750,000 (together with the $6,000,000 amount referred to above, the
     "Adjusted  Amounts"),  the  Conversion  Price shall be reduced to $1.00 per
     share;

provided,  however, that in the event the Company sells all of the capital stock
or all or substantially  all of the assets of one or more of its Subsidiaries in
1996, the Adjusted Amounts for 1996 will be reduced by the amount or amounts set
forth in  Schedule A hereto in  respect of the  Subsidiary  or  Subsidiaries  so
involved. In the event any such sale occurs during 1996, the applicable Adjusted
Amount will be reduced by multiplying  it by a fraction,  the numerator of which
is the  number  of days of the  year  remaining  after  any  such  sale  and the
denominator is 365.

                  (g) Certain  Shares  Excluded.  The number of shares of Common
Stock outstanding at any given time for purposes of the adjustments set forth in
this Section 6 shall exclude any shares then directly or indirectly  held in the
treasury of the Company.

                  (h) Deferral and  Cumulation  of De Minimis  Adjustments.  The
Company shall not be required to make any adjustment  pursuant to this Section 6
if the amount of such  adjustment  should be less than one  percent  (1%) of the
Conversion  Price in effect  immediately  before the event that would  otherwise
have given rise to such adjustment.  In such case, however,  any adjustment that
would  otherwise  have been required to be made shall be made at the time of and
together with the next subsequent adjustment which, together with any adjustment
or  adjustments  so carried  forward,  shall amount to not less than one percent
(1%) of the Conversion Price in effect  immediately before the event giving rise
to such next subsequent adjustment.

                  (i) Duration of  Adjustment.  Following  each  computation  or
readjustment  provided in this Section 6, the new adjusted  Conversion Price and
number of Conversion  Shares shall remain in effect until a further  computation
or readjustment thereof is required.

                  (j)  Reservation.  The Company hereby agrees that at all times
there shall be  reserved  for  issuance  upon the  conversion  of this Note such
number of shares of its Common  Stock as shall be  required  for  issuance  upon
conversion of this Note. The Company further agrees that all shares which may be
issued upon the  conversion of the rights  represented by this Note will be duly
authorized and will, upon issuance and against payment of the Conversion  Price,
be validly issued,  fully paid and  non-assessable,  free from all taxes, liens,
charges and preemptive rights with respect to the issuance  thereof,  other than
taxes, if any, in

                                        9


<PAGE>
<PAGE>



respect of any transfer occurring contemporaneously with such issuance and other
than transfer restrictions imposed by federal and state securities laws.

                  (i)  Delivery of Shares  and/or New Note.  The  Company  shall
deliver a certificate or certificates for shares of its Common Stock issuable on
conversion of this Note as soon as practicable  after surrender of this Note for
conversion,  but the person or persons to whom such  certificates  are  issuable
shall be considered  the holder of record of the shares of Common Stock from the
time  this Note is  surrendered.  Except as  described  above,  this Note is not
otherwise  convertible  into shares of Common Stock.  Upon  conversion of only a
portion  of this Note,  the  Company  shall  issue and  deliver  to, or upon the
written order of, the Holder hereof,  at the expense of the Company,  a new Note
covering the principal  amount of this Note not converted,  which new Note shall
entitle the holder  thereof to interest on the principal  amount  thereof to the
same extent as if the unconverted  portion of this Note had not been surrendered
for conversion.

                  7. Notices to Holders.

                  (a) Notice of Record Date. In case:

          (i) the Company shall take a record of the holders of its Common Stock
     (or other stock or securities at the time receivable upon the conversion of
     this Note) for the purpose of entitling them to receive any dividend (other
     than a cash dividend payable out of earned surplus of the Company) or other
     distribution, or any right to subscribe for or purchase any shares of stock
     of any class or any other securities, or to receive any other right;

          (ii)   of   any   capital   reorganization   of   the   Company,   any
     reclassification  of the capital  stock of the Company,  any  consolidation
     with or merger of the Company into another  corporation,  or any conveyance
     of all  or  substantially  all of the  assets  of the  Company  to  another
     corporation; or

          (iii) of any voluntary  dissolution,  liquidation or winding-up of the
     Company;

then,  and in each such case, the Company will mail or cause to be mailed to the
Holder hereof at the time outstanding a notice  specifying,  as the case may be,
(i) the date on which a record is to be taken for the purpose of such  dividend,
distribution  or right,  and stating the amount and character of such  dividend,
distribution  or  right,  or  (ii)  the  date  on  which  such   reorganization,
reclassification, consolidation, merger, conveyance, dissolution, liquidation or
winding-up is to take place,  and the time, if any, is to be fixed,  as of which
the holders of record of Common Stock (or such stock or  securities  at the time
receivable upon the conversion of this Note) shall be entitled to exchange their
shares of Common Stock (or such other stock or  securities)  for  securities  or
other  property   deliverable   upon  such   reorganization,   reclassification,
consolidation,  merger, conveyance, dissolution, liquidation or winding-up. Such
notice shall be mailed at least

                                       10


<PAGE>
<PAGE>



thirty (30) days prior to the record  date  therein  specified,  or if no record
date shall have been specified therein,  at least thirty (30) days prior to such
other specified date.

                  (b) Certificate of Adjustment.  Whenever the Conversion  Price
or the number of  Conversion  Shares  shall be  adjusted  pursuant  to Section 6
hereof, the Company shall promptly make a certificate signed by its President or
a Vice President and by its Treasurer or Assistant Treasurer or its Secretary or
Assistant Secretary,  setting forth in reasonable detail the event requiring the
adjustment,  the amount of the  adjustment,  the method by which such adjustment
was  calculated  and the number of Conversion  Shares and the  Conversion  Price
after giving effect to such adjustment,  and shall promptly cause copies of such
certificates to be mailed (by first class mail postage prepaid) to the Holder of
this Note.

                  8. Registration,  Exchange and Transfer. The Company will keep
a register in which, subject to such reasonable regulations as it may prescribe,
it will  register all Notes.  No transfer of this Note shall be valid as against
the  Company  unless  made  upon  the  register.  This  Note is  subject  to the
restrictions on transfer of this Note and compliance  with said  restrictions on
transfer, the Company shall execute and deliver in the name of the transferee or
transferees a new Note or Notes for a like principal amount.

                  This  Note may be  exchanged  for a like  aggregate  principal
amount in other denominations.  To be exchanged,  this Note shall be surrendered
for that purpose at the principal  office of the Company,  and the Company shall
execute  and  deliver in  exchange  therefor  the Note or Notes which the holder
making the exchange  shall be entitled to receive,  bearing  serial  numbers not
contemporaneously outstanding.

                  This Note, if presented for transfer, exchange,  redemption or
payment,  shall (if so  required  by the  Company)  be duly  endorsed  by, or be
accompanied by instruments of transfer in form  satisfactory to the Company duly
executed by, the registered Holder or by his duly authorized attorney.

                  The Company may deem and treat the registered Holder hereof as
the  absolute  owner  hereof  (whether  or not this Note  shall be  overdue  and
notwithstanding  any  notation of ownership  or other  writing  hereon by anyone
other than the Company),  for the purpose of receiving  payment of or on account
of the principal hereof and interest hereon,  for the conversion  hereof and for
all other  purposes,  and the Company shall not be affected by any notice to the
contrary.

                  9.  Covenants.  The  Company  covenants,  so long as this Note
shall be outstanding  and unless the Holders of more than  seventy-five  percent
(75%) of the  aggregate  principal  amount of all Notes then  outstanding  shall
otherwise approve, that:

          (a)  Financial  Statements,  Reports,  etc. So long as this Note shall
     remain outstanding and the Company is subject to the filing requirements of
     Section 13(a),  13(c) or 15(d) of the  Securities  Exchange Act of 1934, as
     amended (the "Exchange Act"), the Company

                                       11


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<PAGE>



     will transmit or cause to be transmitted to the Holder,  promptly after the
     same are sent or become publicly available, copies of any and all financial
     statements and reports which are made available to its shareholders and all
     periodic and other reports, proxy statements,  registration  statements and
     other materials filed by it with the Securities and Exchange Commission, or
     any other governmental  authority succeeding to any or all of the functions
     of said commission, or any national securities exchange or stock market, as
     the case may be. If the Company is not subject to filing requirements,  the
     Company will transmit or cause to be  transmitted  to the Holder annual and
     quarterly  reports  containing  audited  annual  financial  statements  and
     related  notes  thereto  and  unaudited  quarterly  financial   statements,
     respectively.

          (b)  Registration  of Shares.  The Company  shall file a  registration
     statement with the Securities and Exchange  Commission under the Securities
     Act of 1933, as amended (the "Act"),  with respect to the Notes, the shares
     of Common  Stock  issuable  pursuant  hereto,  the  Warrant  referred to in
     Section 16(a) and the shares of Common Stock  issuable upon the exercise of
     the  Warrant  on or prior to the later of (i)  ninety  (90) days  after the
     Company's  receipt of the net proceeds from the initial sale of the minimum
     principal  amount  of the  Notes or (ii)  March  31,  1996,  pursuant  to a
     registration  rights agreement of even date herewith between the Holder and
     the Company.

          (c)  Corporate  Existence.  The  Company  shall,  and shall  cause its
     Subsidiaries  to, do or cause to be done all things  necessary to preserve,
     renew and keep in full force and effect its corporate  existence,  material
     rights,  licenses,  permits  and  franchises  and  comply  in all  material
     respects with all laws and regulations applicable to it.

          (d) Taxes and  Assessments.  The  Company  shall,  and shall cause its
     Subsidiaries to, pay and discharge all taxes,  assessments and governmental
     charges  or levies  imposed  upon it or upon its  income or  profits  or in
     respect of its  property,  before the same shall become in default  (which,
     for purposes of this Note,  shall mean the earlier of ninety (90) days from
     its due date or  invoice  date,  as the case may be, or the date upon which
     such obligee  commences an action or  proceeding  to recover such  amount),
     provided,  however,  that the  Company  shall  not be  required  to pay and
     discharge or to cause to be paid and discharged  any such tax,  assessment,
     charge,  levy or claim so long as the validity or amount  thereof  shall be
     contested in good faith by  appropriate  proceedings  (if the Company shall
     have set aside on its books adequate reserves therefor).

          (e) Liens.  The  Company  shall  not,  and shall not permit any of its
     Subsidiaries to, incur,  create,  assume or suffer to exist any Lien on any
     property  or  assets,  income  or  profits  of the  Company,  now  owned or
     hereafter acquired, other than Permitted Liens.

          (f)  Indebtedness.  The Company shall not, and shall not permit any of
     its Subsidiaries to, contract, create, incur, assume or suffer to exist any
     Indebtedness,  except for (i) Senior Indebtedness;  (ii) Indebtedness under
     this Note and the  other  Notes in an  aggregate  principal  amount  not to
     exceed $9,500,000; (iii) Indebtedness between Subsidiaries and between

                                       12


<PAGE>
<PAGE>



     any  Subsidiary  and the Company;  (iv)  Indebtedness  existing on the date
     hereof;  (v) Indebtedness of Lynwood  Scientific  Developments  Limited,  a
     corporation organized under the laws of the United Kingdom, to Midland Bank
     plc. in an aggregate  amount not to exceed  $2,000,000  or the U.S.  dollar
     equivalent in English pounds; (vi) Indebtedness of Codar Technology,  Inc.,
     a Colorado  corporation,  to MetLife  Capital Corp.  and Colorado  National
     Leasing,  Inc. in an aggregate amount not to exceed  $1,200,000;  and (vii)
     all extensions, renewals and refundings of any of the foregoing.

          (g)  Investments.  The Company  shall not, and shall not permit any of
     its Subsidiaries to, purchase,  hold or acquire any capital stock, evidence
     of indebtedness  or other  securities of, make or permit to exist any loans
     or  advances  to,  or make or permit  to exist  any  investment  (by way of
     transfers of property, contributions to capital, acquisitions of businesses
     or acquisitions of assets other than in the ordinary course of business, or
     otherwise) or any other interest in, any other Person, except for Permitted
     Investments.

          (h)  Payments.  The Company shall not, and shall not permit any of its
     Subsidiaries to, declare or pay,  directly or indirectly,  any dividends or
     make  any  other  distribution  or  payment,  whether  in  cash,  property,
     securities or a combination thereof,  with respect to (whether by reduction
     of capital or  otherwise)  any  shares of  capital  stock (or any  options,
     warrants,  rights or other equity securities or agreements  relating to any
     capital stock) now or hereafter outstanding, or purchase, redeem, retire or
     otherwise  acquire for value any shares of its capital stock or warrants or
     options therefor now or hereafter outstanding, or set apart any sum for the
     aforesaid  purposes,  in any fiscal  year,  provided  that the  Company may
     declare  stock  splits and pay  dividends  payable  solely in shares of any
     class of its capital stock and the Subsidiaries may make cash distributions
     or payments to the Company.

          (i) Disposition of Assets. The Company shall not, and shall not permit
     any of its  Subsidiaries  to,  sell or  otherwise  dispose  of any  assets,
     including  the  capital  stock of any of its  Subsidiaries,  except for (i)
     sales of  inventory,  fixtures  and  equipment  in the  ordinary  course of
     business,  (ii) sales of assets having a book value not exceeding  $100,000
     in the aggregate,  and (iii) the sale of certain  vacant  property owned by
     the Company located in Hauppauge, New York.

          (j) Affiliate Transactions. Subsequent to the date hereof, the Company
     shall not, and shall not permit any Subsidiary to,  directly or indirectly,
     enter  into or  permit  to exist  any  transaction  or  series  of  related
     transactions (including, but not limited to, the purchase, sale or exchange
     of property,  the making of any investment,  the giving of any guarantee or
     the rendering of any service) with any Affiliate of the Company (other than
     transactions among the Company and any wholly-owned  Subsidiary) unless (i)
     such  transaction  or series of  related  transactions  is on terms no less
     favorable  to the  Company  or such  Subsidiary  than  those  that could be
     obtained in a comparable arm's length transaction with a Person that is not
     an Affiliate,  and (ii) such transaction or series of related  transactions
     is  approved  by a  majority  of the  Board  of  Directors  of the  Company
     (including a majority of the  disinterested  directors),  which approval is
     set  forth  in a board  resolution  of the  Company  certifying  that  such
     transaction  or  series  of  transactions  complies  with  the  immediately
     preceding clause (i).

                                       13


<PAGE>
<PAGE>




          (k) Merger, Consolidation, etc. Neither the Company nor any Subsidiary
     shall consolidate or merge with, or convey, transfer or lease substantially
     all of its assets in a single transaction or series of transactions to, any
     other Person unless (i) the successor  formed by such  consolidation or the
     survivor of such merger or the Person that acquires by conveyance, transfer
     or lease substantially all of the assets of the Company as an entirety,  as
     the case may be (the  "Successor"),  shall have  executed and  delivered to
     Holder  its  assumption  of the due  and  punctual  performance  of all the
     obligations  under this Note,  (ii) such  Successor  shall be a corporation
     organized and existing under the laws of the United States of America,  any
     state thereof or the District of Columbia,  and (iii) no event  referred to
     in Section 8 shall have occurred and be continuing.

          (l) Maintenance of Properties. The Company shall, and shall cause each
     of its Subsidiaries  to, keep all properties  useful in the business of the
     Company in good  working  order and  condition  except to the  extent  that
     discontinuing  the operation or maintenance  of any such  properties is, in
     the judgment of the Company, desirable in the conduct of its business.

                  10. Events of Default. (a) In the event that:

          (i) the Company defaults in the payment of any installment of interest
     required  to be made on this Note and such  default  shall  continue  for a
     period of ten (10) days;

          (ii) the Company  defaults in making any payment of  principal on this
     Note required to be made on this Note;

          (iii) any  obligation of the Company or any Subsidiary for the payment
     of borrowed  money in excess of  $500,000  becomes or is declared to be due
     and payable  prior to its  expressed  maturity,  unless the validity of any
     such  indebtedness  or  obligation  is  being  contested  in good  faith by
     appropriate proceedings;

          (iv) any warrant of attachment, execution or other writ is levied upon
     any  property  or  assets of the  Company  or any  Subsidiary  in excess of
     $500,000 and is not discharged or stayed  (including  stays  resulting from
     the filing of an appeal) within thirty (30) days;

          (v) all or any  substantial  part of the assets or  properties  of the
     Company or any  Subsidiary  are condemned,  seized or  appropriated  by any
     government  or  governmental  authority;  or any  order is  entered  in any
     proceeding  directing  the  winding-up,  dissolution  or  split-up  of  the
     Company;

          (vi) the Company or any Subsidiary  hereafter  makes an assignment for
     the benefit of  creditors,  or files a petition in bankruptcy as to itself,
     is  adjudicated  insolvent  or bankrupt,  petitions  any receiver of or any
     trustee for the Company

                                       14


<PAGE>
<PAGE>



     or  any  substantial  part  of  the  property  of  the  Company  under  any
     bankruptcy, reorganization,  arrangement, readjustment of debt, dissolution
     or liquidation law or statute of any jurisdiction, whether or not hereafter
     in effect; or if there is hereafter  commenced against the Company any such
     proceeding  and  an  order  approving  the  petition  is  entered  or  such
     proceeding  remains  undismissed  for a period of sixty (60)  days,  or the
     Company by any act or omission to act  indicates its consent to or approval
     of or  acquiescence  in  any  such  proceeding  or the  appointment  of any
     receiver  of, or trustee for,  the Company or any  substantial  part of its
     properties,  or suffers any such  receivership  or  trusteeship to continue
     undischarged for a period of sixty (60) days; or

          (vii) the Company  defaults in the due observance or  performance,  in
     any  material  respect,  of any  covenant,  condition  or  agreement  to be
     observed  or  performed  pursuant  to the terms of this Note  (other than a
     default  which is  specifically  provided  for in this Section 10) and such
     default  continues  unremedied  for more than thirty (30) days after notice
     thereof to the Company;

then, and in each and every such case,  the holders of not less than  one-fourth
(1/4) in  aggregate  principal  amount  of  outstanding  Notes may  declare  the
principal and accrued but unpaid interest of all the Notes to be due and payable
immediately, by written notice to the Company, and upon any such declaration the
same  shall  become and shall be  immediately  due and  payable,  subject to the
subordination provisions of Section 4 hereof. At any time after such declaration
of  acceleration  has been made,  and before a judgment or decree for payment of
money due has been  obtained,  the holders of a majority in aggregate  principal
amount of the outstanding  Notes may, by written notice to the Company,  rescind
and annul such declaration.

                  (b)  At  any  time   before   the  date  of  any   declaration
accelerating  the maturity of this Note:  (i) the holders of at least  sixty-six
and two-thirds  percent  (66.67%) in aggregate  principal  amount of outstanding
Notes may waive any past Event of Default and its consequences pertaining to the
payment of  interest  on, or the  principal  of, any of the Notes;  and (ii) the
holders of a majority in aggregate principal amount of Notes may waive any other
Event of Default hereunder. Such waivers shall be evidenced by written notice or
other document  specifying the Event or Events of Default being waived and shall
be binding on all existing or subsequent holders of outstanding Notes.

                    11.    Certain Consequences Upon Default.

                  (a) Defaulted Interest. Subject to the provisions of Section 4
and 5 hereof, if the Company shall default in the payment of the principal of or
interest on this Note,  whether upon maturity,  by  acceleration,  or otherwise,
including,  without  limitation,  as a  result  of a  Chapter  11 or  Chapter  7
bankruptcy  case  commenced by or against the Company in which it is the debtor,
the  Company  shall on demand  from  time to time pay  interest,  to the  extent
permitted by law, on such defaulted amount up to (but not including) the date of
actual  payment  (whether  before  or after  judgment)  at the  rate  per  annum
(computed on the basis of the actual

                                       15


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<PAGE>



number  of days  elapsed  over a year of 360  days) at the rate set forth in the
introduction of this Note, plus six percentage  points (6%). It is the intention
of the Company and the holder of this Note to comply with applicable  usury laws
(now or hereafter  enacted);  accordingly,  notwithstanding any provision to the
contrary in this Note, and any other document  executed in connection  herewith,
in no event  shall this Note or any such other  document  require the payment or
permit the collection of interest in excess of the maximum  amount  permitted by
such laws. If for any circumstances whatsoever,  fulfillment of any provision of
this  Note  or of any  such  other  document  at the  time  performance  of such
provision  shall be due,  shall  involve  transcending  the  limit  of  validity
prescribed by law for the collection or charging of interest,  then, ipso facto,
the  obligation to be fulfilled  shall be reduced to the limit of such validity,
and if for any such  circumstances  the holder of this Note  shall ever  receive
anything of value as interest or deemed  interest by  applicable  law under this
Note or any such other  document or  otherwise  an amount that would  exceed the
highest  lawful  rate,  such amount that would be  excessive  interest  shall be
applied to the  reduction  of the  principal  amount owing under this Note or on
account of any other  indebtedness of the Company to such holder, and not to the
payment of interest, or if such excessive interest exceeds the unpaid balance of
principal of such indebtedness, such excess shall be refunded to the Company. In
determining  whether or not the  interest  paid or payable  with  respect to any
indebtedness  of the  Company to the  Holder,  under any  specific  contingency,
exceeds the highest  lawful  rate,  the  Company and such holder  shall,  to the
maximum extent permitted by applicable law, (i)  characterize any  non-principal
payment as an expense,  fee or premium  rather than as  interest,  (ii)  exclude
voluntary prepayments and the effects thereof, (iii) amortize, prorate, allocate
and  spread  the  total  amount  of  interest  throughout  the full term of such
indebtedness  so that the  actual  rate of such  interest  does not  exceed  the
maximum  amount  permitted by  applicable  law,  and/or (iv)  allocate  interest
between  portions of such  indebtedness,  to the end that no such portion  shall
bear interest at a rate greater than that permitted by applicable law.

                  (b)  Additional  Director  Nominee.  If and whenever  interest
payable on this Note shall be in arrears in whole or in part,  or if the Company
shall fail to pay the  principal  of this Note  (whether or not  prevented  from
doing so by restrictions contained in its Restated Certificate of Incorporation,
as  amended  from  time to time,  or any other  agreement  or  instrument),  the
existing members of the Board of Directors shall cause one Director then serving
on the Board of Directors (who has not been  designated by the holders of Notes,
Charles S. Holmes or C. Shelton James) to resign as a director,  and the holders
of the Notes shall be entitled to immediately  appoint one Director to fill such
vacancy, provided, that if such Director appointed by the holders, together with
the other  directors  designated by the holders of Notes and Messrs.  Holmes and
James, would not exceed 50% of the total Board of Directors,  then in such event
the holders of Notes shall be entitled to appoint additional Directors (upon the
resignation of other  non-designated  existing  Directors) so as its and Messrs.
Holmes'  and  James'  designees  constitute  a  majority  of the total  Board of
Directors.  Whenever all arrears in interest on the Notes then outstanding shall
have been paid and all principal amounts required to be made with respect to any
Notes shall have been made or funds  therefor  set apart for  payment,  then the
right  of the  holders  of  Notes  to  designate  one  Director  (or two or more
Directors,  as the case may be)  shall  cease  (but  subject  always to the same
provisions for the vesting of such rights in

                                       16


<PAGE>
<PAGE>



the case of any  similar  future  arrearages  in interest or failures to satisfy
principal  obligations),  and the  terms of  office of all  persons  elected  as
Directors by the holders of Notes shall  forthwith  terminate  and the number of
members on the Board of Directors appointed by the holders of the Notes shall be
reduced  accordingly.  At any time after such power shall have been so vested in
the Notes, the Secretary of the Corporation may, and upon the written request of
any holder of Notes  (addressed to the Secretary at the principal  office of the
Company) shall,  call a special meeting of the holders of Notes for the election
of the Director (or two or more Directors,  as the case may be) to be designated
by them as  herein  provided,  such call to be made by  notice  similar  to that
provided in the By-laws for a special meeting of the shareholders or as required
by law. If any such  special  meeting  required  to be called as above  provided
shall not be called by the Secretary  within  fifteen (15) days after receipt of
any such  request,  then any  holder of Notes may call  such  meeting,  upon the
notice above provided, and for that purpose shall have access to the register of
holders of the Notes of the  Company.  The  Director(s)  designated  at any such
special  meeting  shall  hold  office  until  the  next  annual  meeting  of the
shareholders  or  special  meeting  held  in  place  thereof  and be  re-elected
successively thereafter,  if such office shall not have previously terminated as
above provided.  In case any vacancy shall occur among the Directors  designated
by the holders of Notes, a successor  shall be elected by the Board of Directors
to serve until the next annual meeting of the  shareholders  or special  meeting
held in place  thereof  upon the  nomination  of the  then  remaining  Directors
designated by the holders of Notes and Messrs. Holmes and James.

                  (c) Additional Warrants. In the event there occurs an Event of
Default  pertaining  to the payment of interest on, or the  principal of, any of
the Notes,  the  Company  shall  issue to the  holders  of the Notes  additional
warrants to purchase  2,000,000  shares of Common Stock,  each holder to receive
his pro rata share.

                  12.      Investment Representations.

                  (a) The  Holder  hereby  acknowledges  that  this Note and the
Conversion  Shares are not being registered (i) under the Act on the ground that
the issuance of the Note is exempt from  registration  under Section 4(2) of the
Act as not  involving  any public  offering or (ii) under any  applicable  state
securities  law  because  the  issuance of this Note does not involve any public
offering;  and that the Company's  reliance on the Section 4(2) exemption of the
Act and under  applicable  state  securities  laws is  predicated in part on the
representations  hereby made to the  Company by the Holder that it is  acquiring
this Note for  investment  for its own  account,  with no present  intention  of
dividing its  participation  with others or reselling or otherwise  distributing
the same,  provided,  nevertheless,  subject to any  requirement of law that the
disposition of its property shall at all time be within its control.

                  (b) The Holder hereby agrees that it will not sell or transfer
all or any part of this Note and/or  Conversion  Shares unless and until, and so
long as such securities are not covered by an effective  registration  statement
under the Act, it shall first have given notice to the Company  describing  such
sale or transfer and furnished to the Company either (i) an opinion,  reasonably
satisfactory to counsel for the Company, of counsel (skilled in securities

                                       17


<PAGE>
<PAGE>



matters,  selected by the Holder and reasonably  satisfactory to the Company) to
the effect that the proposed  sale or transfer may be made without  registration
under the Act and without  registration or qualification under any state law, or
(ii) an interpretive  letter from the Securities and Exchange  Commission to the
effect that no  enforcement  action will be  recommended if the proposed sale or
transfer is made without registration under the Act.

                  (c) If, at the time of issuance of the Conversion  Shares,  no
registration statement is in effect with respect to such shares under applicable
provisions  of the Act,  the Company  may at its  election  require  that Holder
provide the Company  with  written  reconfirmation  of the  Holder's  investment
intent and that any stock certificate delivered to the Holder upon conversion of
this Note shall bear legends reading substantially as follows:

     "TRANSFER  OF THE  SHARES  REPRESENTED  BY THIS  CERTIFICATE  IS SUBJECT TO
     CERTAIN  RESTRICTIONS  SET FORTH IN THE NOTE PURSUANT TO WHICH THESE SHARES
     WERE ISSUED BY THE COMPANY. COPIES OF THOSE RESTRICTIONS ARE ON FILE AT THE
     PRINCIPAL OFFICES OF THE COMPANY, AND NO TRANSFER OF SUCH SHARES OR OF THIS
     CERTIFICATE,  OR  OF  ANY  SHARES  OR  OTHER  SECURITIES  (OR  CERTIFICATES
     THEREFOR)  ISSUED IN EXCHANGE  FOR OR IN RESPECT OF SUCH  SHARES,  SHALL BE
     EFFECTIVE UNLESS AND UNTIL THE TERMS AND CONDITIONS THEREIN SET FORTH SHALL
     HAVE BEEN COMPLIED WITH."

     "THE SHARES  REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER
     THE SECURITIES ACT OF 1933,  AND MAY NOT BE SOLD,  TRANSFERRED,  PLEDGED OR
     OTHERWISE DISPOSED OF IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT
     UNDER THE SECURITIES ACT OF 1933 OR AN OPINION OF COUNSEL  SATISFACTORY  TO
     THE ISSUER OF THIS CERTIFICATE THAT REGISTRATION IS NOT REQUIRED UNDER SAID
     ACT."

In addition, so long as the foregoing legend may remain on any stock certificate
delivered to the Holder,  the Company may maintain  appropriate  "stop transfer"
orders with respect to such certificates and the shares  represented  thereby on
its books and  records  and with  those to whom it may  delegate  registrar  and
transfer functions.

                  (d) The  Company  may refuse to  recognize  a transfer of this
Note or any  Conversion  Shares on its books should a holder attempt to transfer
this  Note or any  Conversion  Shares  otherwise  than in  compliance  with this
Section 12.


                                       18


<PAGE>
<PAGE>



                  13. Definitions.  As used herein, unless the context otherwise
requires, the following terms have the respective meanings:

                  (a)  "Affiliate":  with  respect to any Person, the following:
     (i)  any  other Person that at such time directly or indirectly through one
     or more  intermediaries  controls,  or is controlled  by or is under common
     control  with  such  first Person or (ii) any Person beneficially owning or
     holding,  directly  or  indirectly,  10% or more of any class of voting  or
     equity  interests  of  the Company or any Subsidiary or any  corporation of
     which  the Company and its  Subsidiaries  beneficially  own or hold, in the
     aggregate,  directly  or indirectly, 10% of more of any class of voting  or
     equity  interests. As used in such definition, "controls", "controlled  by"
     and  "under  common control", as used with respect to an Person, shall mean
     the possession, directly or indirectly, of the power to direct or cause the
     direction of the management  policies of such Person,  whether  through the
     ownership of voting securities, by agreement or otherwise.

                  (b)  "Change  in  Control":  any of the  following  events  or
circumstances:   (i)  individuals  who,  at  the  beginning  of  any  period  of
twenty-four (24) consecutive months, constitute the Company's board of directors
(together  with  any new  director  whose  election  by the  Company's  board of
directors or whose  nomination  for election by the Company's  shareholders  was
approved by a vote of at least  two-thirds of the directors then still in office
who either were  directors at the beginning of such period or whose  election or
nomination for election was previously so approved)  cease for any reason (other
than death or  disability)  to constitute a majority of the  Company's  board of
directors  then in office;  (ii) any person or related  persons  constituting  a
group (as such terms are used the Exchange Act) become the  "beneficial  owners"
(as such term is used under the Exchange  Act),  directly or  indirectly of more
than  fifty  percent  (50%)  of the  total  voting  power  of all  classes  then
outstanding of the Company's  voting stock; or (iii) the  acquisition  after the
date hereof by any person or related  persons  constituting a group of the power
to elect, appoint or cause the election or appointment of at least a majority of
the members of the board of directors of the  Company,  or (iv) the  acquisition
after the date hereof by any person or related  persons  constituting a group of
all or  substantially  all of the  properties  and assets of the Company and its
Subsidiaries,  on a consolidated  basis;  provided,  however,  that no Change in
Control shall be deemed to have occurred in connection with, or pursuant to, the
initial issuance and sale of the Notes.

                  (c)  "Closing  Price":  the  closing  price  per  share of the
Company's Common Stock on the principal  national  securities  exchange on which
the Common Stock is listed or admitted to trading or, if not listed or traded on
any such exchange,  on the National Market System of the National Association of
Securities Dealers Automated  Quotations System ("Nasdaq"),  or if not listed or
traded on any such  exchange  or system,  the average of the bid and asked price
per share on Nasdaq or, if such  quotations are not  available,  the fair market
value  per  share of  Common  Stock as  reasonably  determined  by the  Board of
Directors of the Company.

                  (d) "Consolidated Net Income":  the net income (or deficit) of
the Company and its  Subsidiaries  for any period (taken as a cumulative  whole)
after deducting,

                                       19


<PAGE>
<PAGE>



without  duplication,  all  operating  expenses,  provisions  for all  taxes and
reserves  (including  reserves for deferred  income  taxes) and all other proper
deductions,  all  determined in accordance  with GAAP on a  consolidated  basis,
after eliminating all intercompany  items and after deducting portions of income
properly   attributable  to  outside   minority   interests,   if  any,  in  any
Subsidiaries;  provided, however, that there shall be excluded (i) any income or
deficit of any other Person accrued prior to the date it becomes a Subsidiary or
merges  into or  consolidates  with the  Company  or another  Subsidiary  of the
Company,  (ii) the  income  (or  deficit)  of any  other  Person  (other  than a
Subsidiary  of the  Company)  in which the  Company  or any  Subsidiary  has any
ownership interest,  except to the extent that any such income has been actually
received  by the Company or such  Subsidiary  in the form of cash  dividends  or
similar  distributions,  (iii) any deferred credit or amortization  thereof from
the  acquisition  of any  properties  of assets of any  other  Person,  (iv) any
aggregate net income (but not any aggregate net loss) during such period arising
from the sale,  exchange or other  distribution  of capital assets (such term to
include all fixed assets, whether tangible or intangible,  all inventory sold in
conjunction  with the disposition of fixed assets and all  securities),  (v) any
income  resulting  from the write-up of assets  after the date hereof,  (vi) any
gains  properly  classified  as  extraordinary  in accordance  with GAAP,  (vii)
proceeds of life insurance  policies to the extent such proceeds exceed premiums
paid to maintain such life insurance policies, (viii) any income of a Subsidiary
which is  unavailable  for the payment of  dividends,  and (ix) any gain arising
from the acquisition of securities, or the extinguishment of any indebtedness of
the Company or any of its Subsidiaries or the termination of an employee benefit
plan.

                  (e)  "GAAP":   United  States  generally  accepted  accounting
principles, consistently applied.

                  (f)  "Indebtedness":  at any time and with any  respect to any
Person,  (i) all  indebtedness  of such  Person  for  borrowed  money,  (ii) all
indebtedness  of such  Person for the  deferred  purchase  price of  property or
services (other than property,  including inventory, and services purchased, and
expense accruals and deferred compensation items arising, in the ordinary course
of business,  provided that the same shall not be overdue (i.e.,  the earlier of
ninety (90) days from the  invoice  date or the date the  obligee  commences  an
action to recover  such  amounts),  or if overdue,  are being  contested in good
faith and by  appropriate  proceedings),  (iii) all  obligations  of such Person
evidenced by notes,  bonds,  debentures or other similar instruments (other than
performance,  surety  and  appeal  bonds  arising  in  the  ordinary  course  of
business),  (iv) all  indebtedness  of such Person  created or arising under any
conditional  sale or other title  retention  agreement  with respect to property
acquired by such Person  (even  though the rights and  remedies of the seller or
lender under such agreement in the event of default are limited to  repossession
or sale of such property), (v) all obligations of such Person under leases which
have been or should be, in accordance with GAAP,  recorded as capital leases, to
the  extent  required  to be so  recorded,  (vi) all  reimbursement,  payment or
similar obligations of such Person,  contingent or otherwise,  under acceptance,
letter of credit or similar  facilities  (vii) all  Indebtedness  referred to in
clauses (i) through (vi) above guaranteed  directly or indirectly by such Person
including without  limitation  through any agreement (A) to pay or purchase such
Indebtedness  or to advance or supply  funds for the payment or purchase of such
Indebtedness,

                                       20


<PAGE>
<PAGE>



(B) to purchase, sell or lease (as lessee or lessor) property, or to purchase or
sell services,  primarily for the purpose of enabling the debtor to make payment
of such Indebtedness or to assure the holder of such  Indebtedness  against loss
in respect of such  Indebtedness,  (C) to supply funds to or in any other manner
invest in the debtor  (including  any  agreement to pay for property or services
irrespective of whether such property is received or such services are rendered)
or (D)  otherwise  to  assure  a  creditor  against  loss  in  respect  of  such
Indebtedness,  and (viii) all  Indebtedness  referred  to in clauses (i) through
(vii)  above  secured  by (or for which the holder of such  Indebtedness  has an
existing  right,  contingent  or  otherwise,  to be  secured  by) any Lien  upon
property (including, without limitation,  accounts and contract rights) owned by
such  Person,  even though such Person has not assumed or become  liable for the
payment of such Indebtedness.

                  (g) "Lien":  any  mortgage,  deed of trust,  pledge,  security
interest, encumbrance, lien or charge of any kind whatsoever.

                  (h) "1996 EBITDA": Consolidated Net Income for the fiscal year
ended  December 31,  1996,  plus,  to the extent  deducted in  determining  such
Consolidated Net Income and without duplication, (i) the sum for such period, of
(a) the  aggregate  amount  of all  interest  (including  capitalized  interest)
accrued or to accrue  (whether  or not  actually  paid)  during  such  period in
respect  of any  Indebtedness  of the  Company  and  its  Subsidiaries,  (b) any
amortized discount in respect of any such Indebtedness  issued at discount,  and
(c) any fees or  commissions  payable in connection  with any letters of credit;
(ii) current and deferred taxes on income and profit;  (iii)  depreciation;  and
(iv) amortization.

                  (i) "Notes": the meaning specified in the introduction of this
Note.

                  (j) "Permitted Investments": any of the following:

          (i)  direct  obligations  of,  or  obligations  the  principal  of and
     interest on which are  unconditionally  guaranteed by, the United States of
     America (of by any agency thereof to the extent such obligations are backed
     by the full faith and credit of the United States of America), in each case
     maturing within twelve months from the date of acquisition thereof;

          (ii) without limiting the provisions of clause (iv) below, investments
     in commercial  paper maturing  within one year from the date of acquisition
     thereof and having, at such date of acquisition,  the highest credit rating
     obtainable  from Standard & Poor's  Corporation (or a similar rating by any
     similar organization which rates commercial papers);

          (iii) investments in certificates of deposits or banker's  acceptances
     and  time  deposits   maturing  within  twelve  months  from  the  date  of
     acquisition thereof issued or guaranteed by or placed with (a) any domestic
     office of the bank  with whom the  Company  maintains  its cash  management
     system  or  (b)  any  domestic  office  of any  other  commercial  bank  of
     recognized  standing  organized  under  the laws of the  United  States  of
     America or any state  thereof  that has a combined  capital and surplus and
     undivided profits of not less than

                                       21


<PAGE>
<PAGE>



     $100,000,000  and is the  principal  banking  subsidiary  of a bank holding
     company  having a  long-term  unsecured  debt rating of at least "A" or the
     equivalent  thereof from the Standard & Poor's Corporation or at least "A2"
     or the equivalent thereof from Moody's Investors Service, Inc.;

          (iv)  investments in commercial  paper maturing within six months from
     the date of acquisition and issued by the holding company of any commercial
     bank of recognized  standing  organized under the laws of the United States
     of America or any state thereof that has (A) a combined capital and surplus
     in excess of  $250,000,000  and (B) commercial  paper rated at least "A" or
     the equivalent  thereof from the Standard & Poor's  Corporation or at least
     "A2" or the equivalent thereof from Moody's Investors Service, Inc. (or has
     a similar rating by any similar  organization that rates commercial paper);
     or

          (v) investments in money market funds  substantially all the assets of
     which are  comprised of  securities  of the types  described in clauses (i)
     through (vi) above.

                  (k) "Permitted Lien": means (i) Liens in existence on the date
hereof,   (ii)  Liens   created  for  the  benefit  of  the  holders  of  Senior
Indebtedness,  (iii) Liens imposed by law for taxes,  assessments  or charges of
any  governmental  authority for claims not yet due or which are being contested
in good faith by  appropriate  proceedings  and with  respect to which  adequate
reserves or other appropriate provisions are being maintained in accordance with
GAAP;  (iv)  statutory  Liens of landlords and Liens of carriers,  warehousemen,
mechanics,  materialmen  and other Liens  imposed by law created in the ordinary
course of business  for amounts not yet due,  which are not overdue by more than
sixty  (60) days or which  are  being  contested  in good  faith by  appropriate
proceedings  and with respect to which  adequate  reserves or other  appropriate
provisions are being  maintained in accordance  with GAAP; (v) Liens incurred or
deposits  made in the ordinary  course of business in  connection  with workers'
compensation, unemployment insurance and other types of social security benefits
or to secure the performance of tenders, bids, leases, contracts (other than for
the  repayment  of  indebtedness),   statutory  obligations  and  other  similar
obligations  or  arising  as a result  of  progress  payments  under  government
contracts;  (vi) easements (including,  without limitation,  reciprocal easement
agreements  and  utility  agreements),   rights-of-way,   covenants,   consents,
reservations,  encroachments,  variations  and  zoning  and other  restrictions,
charges or  encumbrances  (whether or not recorded),  which in the aggregate are
not  substantial  in  amount,  and which do not  interfere  materially  with the
ordinary  conduct of the  business of the  Company  and which do not  materially
detract  from the  property  to which they attach or  materially  impair the use
thereof to the Company;  (vii) Liens covering real property or personal property
in  existence  at the time of  acquisition  thereof by the Company and  purchase
money Liens upon or in any property  acquired or held in the ordinary  course of
business to secure the purchase price of such property or to secure indebtedness
permitted  by Section  9(g)  hereof  solely for the  purpose  of  financing  the
acquisition  of such property and no such Lien covers,  or is extended to cover,
any other  property  owned by the Company;  and (viii)  extensions,  renewals or
replacements of any Lien referred to in clauses (i) through (vii) above.


                                       22


<PAGE>
<PAGE>



                  (l) "Person": any natural person,  corporation,  division of a
corporation,  partnership,  limited  liability  company,  trust,  joint venture,
association,  company, estate,  unincorporated organization or government or any
agency or political subdivision thereof.

                  (m) "Senior  Indebtedness":  the meaning  specified in Section
4(a) hereof.

                  (n)   "Subsidiaries":   with   respect  to  any  Person,   any
corporation,  association  or other  business  entity  (whether  now existing or
hereafter  organized)  of which at least a majority of the  securities  or other
ownership  interests  having ordinary voting power for the election of directors
is, at the time as of which any determination is being made, owned or controlled
by such Person or one or more subsidiaries of such Person.

                  14. Notices.

                  (a)  Notices to Holder of Notes.  Any notice  required  by the
provisions  of this Note to be given to the holders of Notes shall be in writing
and may be delivered  by personal  service or sent by telegraph or cable or sent
by registered or certified mail, return receipt requested,  with postage thereon
fully  prepaid.  All such  communications  shall be  addressed  to the Holder of
record  at its  address  appearing  on the  books  of the  Company.  If  sent by
telegraph or cable, a confirmed copy of such  telegraphic or cabled notice shall
promptly be sent by mail (in the manner provided  above) to the Holder.  Service
of any such communication made only by mail shall be deemed complete on the date
of actual delivery as shown by the addressee's registry or certification receipt
or at the  expiration of the third (3rd) business day after the date of mailing,
whichever is earlier in time.

                  (b) Notices to the  Company.  Whenever  any  provision of this
agreement  requires  a notice to be given to the  Company  by the  holder of any
Note,  the holder of Common Stock  obtained upon the conversion of a Note or the
holder of any other  security  of the  Company  obtained  in  connection  with a
recapitalization,  merger, dividend or other event affecting a Note, then and in
each case,  such notice shall be in writing and shall be sent by  registered  or
certified mail,  return receipt  requested with postage thereon fully prepaid to
the Company at its principal place of business.

No notice under this  Section 14 shall be valid  unless  signed by the holder of
the Note,  Common Stock or other security  giving the notice or in the case of a
notice by  holders  of a  specified  percent in  aggregate  principal  amount of
outstanding  Notes  unless  signed by each  holder of a Note whose Note has been
counted in constituting the requisite  percentage of Notes required to give such
Notice.

                  15.  Amendment.  With the consent of the holders of a majority
in aggregate  principal  amount of outstanding  Notes, the Company may amend the
Notes to cure any  ambiguity,  to correct or supplement  any  provision  therein
which may be inconsistent with any other provision therein, or to make any other
provisions with respect to matters or questions

                                       23


<PAGE>
<PAGE>



arising under the Notes which shall not be  inconsistent  with the provisions of
the Notes;  provided such action shall not adversely affect the interests of the
holders of the Notes.

                  With the consent of the holders of not less than fifty percent
(50%) in aggregate  principal  amount of the outstanding  Notes, the Company may
amend the Notes for the purpose of adding any  provisions to, or changing in any
manner or eliminating  any of the provisions of, the Notes;  provided,  however,
that no such  amendment  shall,  without  the  consent of the  holders of Senior
Indebtedness,  change the subordination provisions of Sections 4 and 5 hereof or
the provisions referred to in subsection (a) below; and provided,  further, that
no amendment  shall,  without the consent of the holder of each outstanding Note
affected thereby,

          (a) change:  (i) the maturity of the principal of, or any  installment
     of  interest  on,  any  Note;  or (ii) the coin or  currency  in which  the
     principal of or interest on any Note is payable;

          (b) reduce the principal amount thereof or the interest rate thereon;

          (c) increase the Conversion Price thereof; or

          (d) reduce the percentage in principal amount of the outstanding Notes
     the consent of whose  holders is required  for any  amendment  or waiver as
     provided for in the Notes.

                  Prompt  written  notice  that  this Note has been  amended  or
interpreted  in  accordance  with the terms of this Section 15 shall be given to
each holder of a Note. Upon such amendment or interpretation, the Notes shall be
deemed modified in accordance therewith,  such amendment or interpretation shall
form a part of this Note for all purposes,  and every subsequent holder of Notes
shall be bound thereby.

                  16. Miscellaneous.

                  (a) Contemporaneously  with the execution and delivery hereof,
the Company has issued to the Holder a detachable warrant representing the right
to purchase  250 shares of Common  Stock at a exercise  price equal to $2.50 per
share of Common Stock, subject to adjustment in certain events.

                  (b)  This  Note  and the  shares  of  Common  Stock  or  other
securities   issuable  upon  conversion  of  this  Note  will  be  accorded  the
registration rights under the Act set forth in that certain  Registration Rights
Agreement  between the Company and the  Holders,  a form of which  agreement  is
being furnished concurrently herewith.

                  (c) This Note is the  obligation of the Company  only,  and no
recourse shall be had for the payment  thereof or interest  thereon  against any
shareholder,  officer  or  director  of the  Company,  whether  by virtue of any
constitution, statute, rule or law or otherwise,

                                       24


<PAGE>
<PAGE>



all such liability,  by the acceptance  hereof, and as part of the consideration
hereof, being expressly waived.

                  (d) Upon receipt of evidence  reasonably  satisfactory  to the
Company of the loss,  theft,  destruction  or  mutilation  of this Note and of a
letter  of  indemnity   reasonably   satisfactory  to  the  Company,   and  upon
reimbursement to the Company of all reasonable  expenses incident  thereto,  and
upon surrender or cancellation of this Note, if mutilated, the Company will make
and deliver a new Note of like tenor in lieu of such lost, stolen,  destroyed or
mutilated Note.

                  (e) THIS NOTE AND THE  RIGHTS AND  OBLIGATIONS  OF EACH OF THE
COMPANY AND THE HOLDER  HEREUNDER  SHALL BE CONSTRUED IN ACCORDANCE  WITH AND BE
GOVERNED  BY THE LAWS OF THE  STATE OF NEW YORK  APPLICABLE  TO  AGREEMENTS  AND
INSTRUMENTS  MADE AND TO BE  PERFORMED  IN NEW YORK AND  CANNOT BE  MODIFIED  OR
CHANGED ORALLY.

         IN WITNESS WHEREOF,  the Company has duly caused this Note to be signed
on its behalf, in its corporate name and by its duly authorized  officer,  as of
this 15th day of February 1996.

                                  NAI TECHNOLOGIES, INC.


                                  By:   RICHARD A. SCHNEIDER 
                                        --------------------------
                                        Richard A. Schneider
                                        Executive Vice President,
                                        Treasurer and Secretary


                                       25


<PAGE>
<PAGE>


                                                                      Schedule A


                          Section 6(f) Adjusted Amounts
<TABLE>
<S>                                                                                    <C>
Wilcom, Inc............................................................................$  838,000
Codar Technology, Inc..................................................................$2,805,000
NAI Technologies - Systems Division Corporation........................................$  607,000
Lynwood Scientific Developments Limited................................................$1,833,000


                                       26
<PAGE>


</TABLE>



<PAGE>
<PAGE>

                                                                       EXHIBIT 2


NO. B-009                                                       1,700,000 SHARES

                             NAI TECHNOLOGIES, INC.

                        WARRANT TO PURCHASE COMMON STOCK


                       VOID AFTER 5:30 P.M., NEW YORK CITY
                          TIME, ON THE EXPIRATION DATE

THIS WARRANT AND ANY SHARES  ACQUIRED UPON THE EXERCISE OF THIS WARRANT HAVE NOT
BEEN  REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"),  AND
MAY NOT BE SOLD, PLEDGED, HYPOTHECATED, DONATED OR OTHERWISE TRANSFERRED WITHOUT
COMPLIANCE  WITH THE  REGISTRATION  OR  QUALIFICATION  PROVISIONS  OF APPLICABLE
FEDERAL AND STATE SECURITIES LAWS OR APPLICABLE EXEMPTIONS THEREFROM.

                  FOR  VALUE  RECEIVED,  NAI  TECHNOLOGIES,  INC.,  a  New  York
corporation  (the  "Company"),  hereby  agrees to sell upon the terms and on the
conditions  hereinafter  set forth,  but no later than 5:30 p.m.,  New York City
time, on the Expiration Date (as hereinafter  defined) to CHARLES S. HOLMES,  or
registered assigns (the "Holder"), under the terms as hereinafter set forth, One
Million Seven Hundred Thousand (1,700,000) fully paid and non-assessable  shares
of the Company's Common Stock,  par value $.10 per share (the "Warrant  Stock"),
at a purchase  price per share of Two and 50/100  Dollars  ($2.50) (the "Warrant
Price"),  pursuant to this  warrant  (this  "Warrant").  The number of shares of
Warrant Stock to be so issued and the Warrant Price are subject to adjustment in
certain  events as  hereinafter  set forth.  The term "Common Stock" shall mean,
when used herein,  unless the context  otherwise  requires,  the stock and other
securities  and  property  at the  time  receivable  upon the  exercise  of this
Warrant.

                  This Warrant is one of a series of the  Company's  Warrants to
purchase Common Stock  (collectively,  the "Warrants"),  issued pursuant to that
certain Confidential Private Placement  Memorandum,  dated December 15, 1995, as
supplemented  (the  "Memorandum").  Capitalized  terms  used  and not  otherwise
defined herein shall have the respective  meanings attributed thereto in Section
10.

                  1.       Exercise of Warrant.

                  (a) The Holder may  exercise  this  Warrant  according  to its
terms by  surrendering  this  Warrant to the Company at the address set forth in
Section 11, the subscription form attached hereto having then been duly executed
by the Holder,  accompanied by cash, certified check or bank draft in payment of
the purchase price, in lawful money of the United



<PAGE>
<PAGE>



States of America,  for the number of shares of the Warrant  Stock  specified in
the  subscription  form, or as otherwise  provided in this Warrant prior to 5:30
p.m., New York City time, on February 15, 2002 (the "Expiration Date").

                  (b) This  Warrant may be exercised in whole or in part so long
as any  exercise in part hereof  would not  involve the  issuance of  fractional
shares of Warrant Stock.  If exercised in part, the Company shall deliver to the
Holder a new Warrant,  identical in form, in the name of the Holder,  evidencing
the right to  purchase  the number of shares of  Warrant  Stock as to which this
Warrant  has not been  exercised,  which  new  Warrant  shall be  signed  by the
Chairman and Chief  Executive  Officer or the President and the Secretary or the
Assistant  Secretary  of the  Company.  The term  Warrant as used  herein  shall
include any subsequent Warrant issued as provided herein.

                  (c) No  fractional  shares  or scrip  representing  fractional
shares shall be issued upon the exercise of this Warrant.  The Company shall pay
cash in lieu of  fractions  with  respect  to the  Warrants  based upon the fair
market  value of such  fractional  shares of Common  Stock  (which  shall be the
closing price of such shares on the exchange or market on which the Common Stock
is then traded) at the time of exercise of this Warrant.

                  (d) In the event of any exercise of the rights  represented by
this Warrant,  a certificate or certificates for the Warrant Stock so purchased,
registered in the name of the Holder,  shall be delivered to the Holder within a
reasonable  time after such rights shall have been so  exercised.  The person or
entity in whose  name any  certificate  for the  Warrant  Stock is  issued  upon
exercise of the rights  represented  by this  Warrant  shall for all purposes be
deemed to have become the holder of record of such shares  immediately  prior to
the close of  business  on the date on which the  Warrant  was  surrendered  and
payment of the Warrant Price and any applicable taxes was made,  irrespective of
the date of  delivery  of such  certificate,  except  that,  if the date of such
surrender and payment is a date when the stock transfer books of the Company are
closed,  such person shall be deemed to have become the holder of such shares at
the opening of business on the next  succeeding date on which the stock transfer
books are open.  Except as provided in Section 4 hereof,  the Company  shall pay
any and all  documentary  stamp or similar  issue or transfer  taxes  payable in
respect of the issue or delivery  of shares of Common  Stock on exercise of this
Warrant.

                  2.       Disposition of Warrant Stock and Warrant.

                  (a) The Holder hereby  acknowledges  that this Warrant and any
Warrant Stock purchased  pursuant hereto are not being  registered (i) under the
Act on the ground that the issuance of this Warrant is exempt from  registration
under Section 4(2) of the Act as not involving any public offering or (ii) under
any  applicable  state  securities law because the issuance of this Warrant does
not involve any public offering;  and that the Company's reliance on the Section
4(2)  exemption  of the  Act  and  under  applicable  state  securities  laws is
predicated  in part on the  representations  hereby  made to the  Company by the
Holder that it is acquiring  this Warrant and will acquire the Warrant Stock for
investment for its own account, with no present

                                        2


<PAGE>
<PAGE>



intention  of dividing its  participation  with others or reselling or otherwise
distributing the same, subject, nevertheless, to any requirement of law that the
disposition of its property shall at all times be within its control.

                  The Holder hereby agrees that it will not sell or transfer all
or any part of this Warrant and/or Warrant Stock unless and until it shall first
have given notice to the Company  describing such sale or transfer and furnished
to the Company either (i) an opinion, reasonably satisfactory to counsel for the
Company, of counsel (skilled in securities  matters,  selected by the Holder and
reasonably  satisfactory to the Company) to the effect that the proposed sale or
transfer may be made without registration under the Act and without registration
or qualification under any state law, or (ii) an interpretative  letter from the
Securities and Exchange Commission to the effect that no enforcement action will
be  recommended  if the proposed  sale or transfer is made without  registration
under the Act.

                  (b) If, at the time of  issuance of the shares  issuable  upon
exercise of this Warrant, no registration statement is in effect with respect to
such  shares  under  applicable  provisions  of the Act,  the Company may at its
election require that the Holder provide the Company with written reconfirmation
of the Holder's  investment intent and that any stock  certificate  delivered to
the Holder of a surrendered Warrant shall bear legends reading  substantially as
follows:

     "TRANSFER  OF THE  SHARES  REPRESENTED  BY THIS  CERTIFICATE  IS SUBJECT TO
     CERTAIN  RESTRICTIONS  SET FORTH IN THE  WARRANT  PURSUANT  TO WHICH  THESE
     SHARES WERE PURCHASED FROM THE COMPANY. COPIES OF THOSE RESTRICTIONS ARE ON
     FILE AT THE  PRINCIPAL  OFFICES OF THE  COMPANY,  AND NO  TRANSFER  OF SUCH
     SHARES OR OF THIS  CERTIFICATE,  OR OF ANY SHARES OR OTHER  SECURITIES  (OR
     CERTIFICATES THEREFOR) ISSUED IN EXCHANGE FOR OR IN RESPECT OF SUCH SHARES,
     SHALL BE EFFECTIVE  UNLESS AND UNTIL THE TERMS AND  CONDITIONS  THEREIN SET
     FORTH SHALL HAVE BEEN COMPLIED WITH."

     "THE SHARES  REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER
     THE SECURITIES ACT OF 1933,  AND MAY NOT BE SOLD,  TRANSFERRED,  PLEDGED OR
     OTHERWISE DISPOSED OF IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT
     UNDER THE SECURITIES ACT OF 1933 OR AN OPINION OF COUNSEL  SATISFACTORY  TO
     THE ISSUER OF THIS CERTIFICATE THAT REGISTRATION IS NOT REQUIRED UNDER SAID
     ACT."

                                        3


<PAGE>
<PAGE>




In addition, so long as the foregoing legend may remain on any stock certificate
delivered to the Holder,  the Company may maintain  appropriate  "stop transfer"
orders with respect to such certificates and the shares  represented  thereby on
its books and  records  and with  those to whom it may  delegate  registrar  and
transfer functions.

                  3.  Reservation  of Shares.  The Company hereby agrees that at
all times there shall be reserved for issuance upon the exercise of this Warrant
such number of shares of its Common Stock as shall be required for issuance upon
exercise of this Warrant.  The Company  further agrees that all shares which may
be issued upon the  exercise of the rights  represented  by this Warrant will be
duly  authorized  and will,  upon  issuance and against  payment of the exercise
price, be validly issued,  fully paid and  non-assessable,  free from all taxes,
liens, charges and preemptive rights with respect to the issuance thereof, other
than taxes, if any, in respect of any transfer occurring  contemporaneously with
such issuance and other than transfer  restrictions imposed by federal and state
securities laws.

                  4.  Exchange,  Transfer,  Assignment or Loss of Warrant.  This
Warrant is  exchangeable,  without  expense,  at the option of the Holder,  upon
presentation  and surrender  hereof to the Company or at the office of its stock
transfer agent, if any, for other Warrants of different denominations, entitling
the Holder or Holders  thereof to purchase in the  aggregate  the same number of
shares of Common Stock purchasable hereunder.  Upon surrender of this Warrant to
the  Company  or at the office of its stock  transfer  agent,  if any,  with the
Assignment  Form annexed  hereto duly  executed and funds  sufficient to pay any
transfer  tax,  the Company  shall,  without  charge,  execute and deliver a new
Warrant in the name of the assignee  named in such  instrument of assignment and
this Warrant shall promptly be canceled. This Warrant may be divided or combined
with other Warrants that carry the same rights upon  presentation  hereof at the
office of the  Company or at the  office of its stock  transfer  agent,  if any,
together with a written notice  specifying the names and  denominations in which
new Warrants are to be issued and signed by the Holder hereof.

                  5.  Capital  Adjustments.  This  Warrant  is  subject  to  the
following further provisions:

          (a)   Recapitalization,   Reclassification  and  Succession.   If  any
     recapitalization  of the Company or reclassification of its Common Stock or
     any merger or  consolidation  of the Company into or with a corporation  or
     other business entity,  or the sale or transfer of all or substantially all
     of the  Company's  assets or of any successor  corporation's  assets to any
     other  corporation  or  business  entity  (any  such  corporation  or other
     business  entity being included  within the meaning of the term  "successor
     corporation")  shall be effected,  at any time while this  Warrant  remains
     outstanding and unexpired,  then, as a condition of such  recapitalization,
     reclassification,  merger,  consolidation,  sale or  transfer,  lawful  and
     adequate  provision  shall  be made  whereby  the  Holder  of this  Warrant
     thereafter  shall have the right to  receive  upon the  exercise  hereof as
     provided in Section 1 and in lieu of the shares of Common Stock immediately
     theretofore  issuable  upon the  exercise of this  Warrant,  such shares of
     capital  stock,  securities  or other  property as may be issued or payable
     with respect to or in exchange

                                        4


<PAGE>
<PAGE>



     for a number of  outstanding  shares of Common Stock equal to the number of
     shares of Common Stock immediately  theretofore  issuable upon the exercise
     of  this  Warrant  had  such  recapitalization,  reclassification,  merger,
     consolidation, sale or transfer not taken place, and in each such case, the
     terms of this Warrant  shall be  applicable to the shares of stock or other
     securities or property  receivable  upon the exercise of this Warrant after
     such consummation.

          (b)  Subdivision or Combination of Shares.  If the Company at any time
     while this Warrant  remains  outstanding  and unexpired  shall subdivide or
     combine its Common Stock, the number of shares of Warrant Stock purchasable
     upon   exercise  of  this   Warrant   and  the   Warrant   Price  shall  be
     proportionately adjusted.

          (c) Stock  Dividends  and  Distributions.  If the  Company at any time
     while this  Warrant is  outstanding  and  unexpired  shall issue or pay the
     holders of its Common Stock,  or take a record of the holders of its Common
     Stock for the purpose of entitling them to receive,  a dividend payable in,
     or other distribution of, Common Stock, then (i) the Warrant Price shall be
     adjusted in  accordance  with Section 5(e) and (ii) the number of shares of
     Warrant Stock  purchasable  upon exercise of this Warrant shall be adjusted
     to the  number of shares of Common  Stock  that  Holder  would  have  owned
     immediately   following   such  action  had  this  Warrant  been  exercised
     immediately prior thereto.

          (d) Stock and Rights  Offering to  Shareholders.  If at any time after
     the date of issuance of this  Warrant,  the Company shall issue or sell, or
     fix a record date for the purposes of entitling holders of its Common Stock
     to receive, (i) Common Stock or (ii) rights,  options or warrants entitling
     the  holders  thereof  to  subscribe  for  or  purchase  Common  Stock  (or
     securities  convertible  or  exchangeable  into or  exercisable  for Common
     Stock),  in any such case,  at a price per share (or  having a  conversion,
     exchange or exercise  price per share) that is less than the closing  price
     per  share  of  the  Company's  Common  Stock  on  the  principal  national
     securities  exchange  on which the Common  Stock is listed or  admitted  to
     trading or, if not listed or traded on any such  exchange,  on the National
     Market System (the "National Market System") of the National Association of
     Securities Dealers Automated Quotations System ("Nasdaq"), or if not listed
     or traded on any such exchange or system,  the average of the bid and asked
     price per share on Nasdaq or, if such  quotations  are not  available,  the
     fair market value per share of the  Company's  Common  Stock as  reasonably
     determined by the Board of Directors of the Company (the  "Closing  Price")
     on the  date  of  such  issuance  or sale  or on  such  record  date  then,
     immediately after the date of such issuance or sale or on such record date,
     (x) the Warrant  Price shall be adjusted in  accordance  with Section 5(e),
     and (y) the number of shares of Warrant Stock  purchasable upon exercise of
     this Warrant shall be adjusted to that number determined by multiplying the
     number of shares of Warrant Stock purchasable upon exercise of this Warrant
     immediately before the date of such issuance or sale or such record date by
     a fraction, the denominator of which will be the number of shares of Common
     Stock  outstanding  on such date plus the number of shares of Common  Stock
     that the aggregate  offering price of the total number of shares so offered
     for subscription or purchase (or the aggregate  initial  conversion  price,
     exchange  price  or  exercise  price  of  the  convertible   securities  or
     exchangeable securities or rights, options or warrants, as the case may be,
     so offered) would purchase at such Closing Price, and

                                        5


<PAGE>
<PAGE>



     the  numerator  of which  will be the  number of  shares  of  Common  Stock
     outstanding  on such date plus the  number of  additional  shares of Common
     Stock offered for  subscription  or purchase (or into which the convertible
     or  exchangeable  securities or rights,  options or warrants so offered are
     initially convertible or exchangeable or exercisable, as the case may be).

          If the  Company  shall at any time after the date of  issuance of this
     Warrant distribute to all holders of its Common Stock any shares of capital
     stock  of the  Company  (other  than  Common  Stock)  or  evidences  of its
     indebtedness or assets (excluding cash dividends or distributions paid from
     retained  earnings  or  current  year's  or prior  year's  earnings  of the
     Company)  or rights or  warrants to  subscribe  for or purchase  any of its
     securities  (excluding  those  referred  to in  the  immediately  preceding
     paragraph) (any of the foregoing being hereinafter in this paragraph called
     the "Securities"), then in each such case, the Company shall reserve shares
     or other  units of such  securities  for  distribution  to the Holder  upon
     exercise of this  Warrant so that,  in addition to the shares of the Common
     Stock to which such Holder is entitled,  such Holder will receive upon such
     exercise  the amount and kind of such  Securities  which such Holder  would
     have received if the Holder had,  immediately  prior to the record date for
     the distribution of the Securities, exercised this Warrant.

          (e) Warrant Price Adjustment. Whenever the number of shares of Warrant
     Stock  purchasable  upon  exercise of this Warrant is  adjusted,  as herein
     provided, the Warrant Price payable upon the exercise of this Warrant shall
     be adjusted  to that price  determined  by  multiplying  the Warrant  Price
     immediately  prior to such  adjustment  by a fraction (i) the  numerator of
     which  shall be the  number of shares of  Warrant  Stock  purchasable  upon
     exercise of this Warrant immediately prior to such adjustment, and (ii) the
     denominator  of which  shall be the  number  of  shares  of  Warrant  Stock
     purchasable upon exercise of this Warrant immediately thereafter.

          (f) 1996 EBITDA  Adjustment.  The Warrant Price shall  additionally be
     adjusted in the following circumstances:

               (i) if the  Company  shall  achieve  1996 EBITDA (as such term is
          defined  in  Section  10) in an amount of less  than  $6,000,000,  the
          Warrant Price shall be reduced to $2.00 per share; and

               (ii) if the  Company  shall  achieve  1996 EBITDA in an amount of
          less than $4,750,000  (together with the $6,000,000 amount referred to
          above, the "Adjusted Amounts"),  the Warrant Price shall be reduced to
          $1.50 per share;

     provided,  however,  that in the event the Company sells all of the capital
     stock  or all or  substantially  all of the  assets  of one or  more of its
     Subsidiaries in 1996, the Adjusted  Amounts for 1996 will be reduced by the
     amount  or  amounts  set  forth in  Schedule  A hereto  in  respect  of the
     Subsidiary or Subsidiaries  so involved.  In the event any such sale occurs
     during 1996, the applicable  Adjusted Amount will be reduced by multiplying
     it by a fraction, the numerator of

                                        6


<PAGE>
<PAGE>



     which is the number of days of the year  remaining  after any such sale and
     the denomination is 365.

                  (g) Certain  Shares  Excluded.  The number of shares of Common
Stock outstanding at any given time for purposes of the adjustments set forth in
this Section 5 shall exclude any shares then directly or indirectly  held in the
treasury of the Company.

                  (h) Deferral and  Cumulation  of De Minimis  Adjustments.  The
Company shall not be required to make any adjustment  pursuant to this Section 5
if the  amount of such  adjustment  would be less than one  percent  (1%) of the
Warrant Price in effect  immediately  before the event that would otherwise have
given rise to such adjustment.  In such case, however, any adjustment that would
otherwise  have  been  required  to be made  shall  be  made at the  time of and
together with the next subsequent adjustment which, together with any adjustment
or  adjustments  so carried  forward,  shall amount to not less than one percent
(1%) of the Warrant Price in effect  immediately before the event giving rise to
such next subsequent adjustment.

                  (i) Duration of  Adjustment.  Following  each  computation  or
readjustment  as provided in this Section 5, the new adjusted  Warrant Price and
number of shares of Warrant  Stock  purchasable  upon  exercise of this  Warrant
shall remain in effect until a further  computation or  readjustment  thereof is
required.

                  6. Notice to Holders.

                  (a) Notice of Record Date. In case:

          (i) the Company shall take a record of the holders of its Common Stock
     (or other stock or securities at the time  receivable  upon the exercise of
     this  Warrant)  for the purpose of  entitling  them to receive any dividend
     (other than a cash dividend  payable out of earned  surplus of the Company)
     or other distribution, or any right to subscribe for or purchase any shares
     of stock of any  class or any other  securities,  or to  receive  any other
     right;

          (ii)   of   any   capital   reorganization   of   the   Company,   any
     reclassification  of the capital  stock of the Company,  any  consolidation
     with or merger of the Company into another  corporation,  or any conveyance
     of all  or  substantially  all of the  assets  of the  Company  to  another
     corporation; or

          (iii) of any voluntary  dissolution,  liquidation or winding-up of the
     Company;

then,  and in each such case, the Company will mail or cause to be mailed to the
Holder hereof at the time outstanding a notice  specifying,  as the case may be,
(i) the date on which a record is to be taken for the purpose of such  dividend,
distribution or right, and stating the amount and

                                        7


<PAGE>
<PAGE>



character of such  dividend,  distribution  or right,  or (ii) the date on which
such  reorganization,   reclassification,   consolidation,  merger,  conveyance,
dissolution,  liquidation or winding-up is to take place,  and the time, if any,
is to be fixed, as of which the holders of record of Common Stock (or such stock
or securities at the time receivable upon the exercise of this Warrant) shall be
entitled  to  exchange  their  shares of Common  Stock (or such  other  stock or
securities)   for   securities   or  other   property   deliverable   upon  such
reorganization, reclassification, consolidation, merger, conveyance, dissolution
or  winding-up.  Such notice  shall be mailed at least thirty (30) days prior to
the  record  date  therein  specified,  or if no  record  date  shall  have been
specified therein, at least thirty (30) days prior to such specified date.

                  (b) Certificate of Adjustment.  Whenever any adjustment  shall
be made  pursuant  to  Section 5  hereof,  the  Company  shall  promptly  make a
certificate signed by its Chairman and Chief Executive Officer, its President or
a Vice President and by its Treasurer or Assistant Treasurer or its Secretary or
Assistant Secretary,  setting forth in reasonable detail the event requiring the
adjustment,  the amount of the  adjustment,  the method by which such adjustment
was  calculated  and the  Warrant  Price and number of shares of  Warrant  Stock
purchasable   upon  exercise  of  this  Warrant  after  giving  effect  to  such
adjustment,  and shall promptly cause copies of such  certificates  to be mailed
(by first class mail, postage prepaid) to the Holder of this Warrant.

                  7. Loss, Theft, Destruction or Mutilation. Upon receipt by the
Company  of  evidence  satisfactory  to it, in the  exercise  of its  reasonable
discretion,  of the ownership and the loss, theft,  destruction or mutilation of
this  Warrant  and,  in the case of loss,  theft or  destruction,  of  indemnity
reasonably  satisfactory  to the Company  and, in the case of  mutilation,  upon
surrender and cancellation thereof, the Company will execute and deliver in lieu
thereof,  without  expense to the Holder,  a new Warrant of like tenor dated the
date hereof.

                  8.  Warrant  Holder  Not a  Shareholder.  The  Holder  of this
Warrant,  as such, shall not be entitled by reason of this Warrant to any rights
whatsoever as a shareholder of the Company.

                  9. Registration  Rights. This Warrant and the shares of Common
Stock  issuable upon exercise of this Warrant will be accorded the  registration
rights under the Act set forth in that  certain  Registration  Rights  Agreement
between  the  Company  and the  Holders,  a form of  which  agreement  is  being
furnished concurrently herewith.

                  10. Definitions.  As used herein, unless the context otherwise
requires, the following terms have the respective meanings:

          (a) "Affiliate":  with respect to any Person,  the following:  (i) any
     other Person that at such time directly or  indirectly  through one or more
     intermediaries  controls,  or is controlled  by or is under common  control
     with such first Person or (ii) any Person  beneficially  owning or holding,
     directly  or  indirectly,  10% or more of any  class of  voting  or  equity
     interests of the Company or any Subsidiary or any  corporation of which the
     Company and

                                        8


<PAGE>
<PAGE>



     its Subsidiaries  beneficially  own or hold, in the aggregate,  directly or
     indirectly, 10% of more of any class of voting or equity interests. As used
     in such definition, "controls", "controlled by" and "under common control",
     as used with respect to an Person,  shall mean the possession,  directly or
     indirectly, of the power to direct or cause the direction of the management
     policies  of  such  Person,   whether   through  the  ownership  of  voting
     securities, by agreement or otherwise.

          (b)  "Consolidated  Net  Income":  the net income (or  deficit) of the
     Company and its Subsidiaries  for any period (taken as a cumulative  whole)
     after deducting,  without duplication,  all operating expenses,  provisions
     for all taxes and reserves  (including  reserves for deferred income taxes)
     and all other proper deductions,  all determined in accordance with GAAP on
     a consolidated  basis,  after eliminating all intercompany  items and after
     deducting  portions of income  properly  attributable  to outside  minority
     interests, if any, in any Subsidiaries; provided, however, that there shall
     be excluded (i) any income or deficit of any other Person  accrued prior to
     the date it becomes a Subsidiary  or merges into or  consolidates  with the
     Company or another Subsidiary of the Company,  (ii) the income (or deficit)
     of any other Person  (other than a Subsidiary  of the Company) in which the
     Company or any Subsidiary has any ownership interest,  except to the extent
     that any such  income has been  actually  received  by the  Company or such
     Subsidiary in the form of cash  dividends or similar  distributions,  (iii)
     any deferred  credit or  amortization  thereof from the  acquisition of any
     properties  of assets of any other  Person,  (iv) any  aggregate net income
     (but not any aggregate net loss) during such period  arising from the sale,
     exchange or other  distribution of capital assets (such term to include all
     fixed  assets,  whether  tangible  or  intangible,  all  inventory  sold in
     conjunction with the disposition of fixed assets and all  securities),  (v)
     any income  resulting  from the  write-up of assets  after the date hereof,
     (vi) any gains  properly  classified as  extraordinary  in accordance  with
     GAAP, (vii) proceeds of life insurance policies to the extent such proceeds
     exceed premiums paid to maintain such life insurance  policies,  (viii) any
     income of a Subsidiary  which is unavailable  for the payment of dividends,
     and (ix) any  gain  arising  form the  acquisition  of  securities,  or the
     extinguishment   of  any   indebtedness  of  the  Company  or  any  of  its
     Subsidiaries or the termination of an employee benefit plan.

          (c) "GAAP":  United States generally accepted  accounting  principles,
     consistently applied.

          (d)  "Indebtedness":  at any time and with any  respect to any Person,
     (i)  all  indebtedness  of  such  Person  for  borrowed  money,   (ii)  all
     indebtedness of such Person for the deferred  purchase price of property or
     services (other than property, including inventory, and services purchased,
     and expense  accruals  and  deferred  compensation  items  arising,  in the
     ordinary  course of business,  provided  that the same shall not be overdue
     (i.e.,  the earlier of ninety  (90) days from the invoice  date or the date
     the obligee  commences an action to recover such  amounts),  or if overdue,
     are being  contested in good faith and by appropriate  proceedings),  (iii)
     all  obligations of such Person  evidenced by notes,  bonds,  debentures or
     other similar instruments (other than performance,  surety and appeal bonds
     arising in the ordinary course of business),  (iv) all indebtedness of such
     Person  created  or  arising  under  any  conditional  sale or other  title
     retention  agreement with respect to property acquired by such Person (even
     though

                                        9


<PAGE>
<PAGE>



     the rights and remedies of the seller or lender under such agreement in the
     event of default are limited to repossession or sale of such property), (v)
     all  obligations  of such Person under leases which have been or should be,
     in accordance with GAAP, recorded as capital leases, to the extent required
     to be so recorded,  (vi) all reimbursement,  payment or similar obligations
     of such Person, contingent or otherwise, under acceptance, letter of credit
     or similar  facilities  (vii) all  Indebtedness  referred to in clauses (i)
     through  (vi)  above  guaranteed  directly  or  indirectly  by such  Person
     including without  limitation  through any agreement (A) to pay or purchase
     such Indebtedness or to advance or supply funds for the payment or purchase
     of such Indebtedness,  (B) to purchase, sell or lease (as lessee or lessor)
     property,  or to purchase or sell  services,  primarily  for the purpose of
     enabling the debtor to make payment of such  Indebtedness  or to assure the
     holder of such Indebtedness  against loss in respect of such  Indebtedness,
     (C) to  supply  funds  to or in  any  other  manner  invest  in the  debtor
     (including  any agreement to pay for property or services  irrespective  of
     whether such  property is received or such  services  are  rendered) or (D)
     otherwise   to  assure  a  creditor   against   loss  in  respect  of  such
     Indebtedness,  and  (viii) all  Indebtedness  referred  to in  clauses  (i)
     through   (vii)  above  secured  by  (or  for  which  the  holder  of  such
     Indebtedness has an existing right,  contingent or otherwise, to be secured
     by) any Lien upon property  (including,  without  limitation,  accounts and
     contract  rights)  owned by such  Person,  even  though such Person has not
     assumed or become liable for the payment of such Indebtedness.

                  (e)  "Lien":   any  mortgage,   pledge,   security   interest,
encumbrance, lien or charge of any kind whatsoever.

                  (f) "1996 EBITDA":  Consolidated Net Income of the Company and
its  Subsidiaries,  for the fiscal year ended  December 31, 1996,  plus,  to the
extent  deducted  in  determining  such  Consolidated  Net  Income  and  without
duplication,  (i) the sum for such period,  of (a) the  aggregate  amount of all
interest (including  capitalized  interest) accrued or to accrue (whether or not
actually paid) during such period in respect of any  Indebtedness of the Company
and  its  Subsidiaries,  (b) any  amortized  discount  in  respect  of any  such
Indebtedness  issued at  discount,  and (c) any fees or  commissions  payable in
connection with any letters of credit; (ii) current and deferred taxes on income
and profit; (iii) depreciation; and (iv) amortization.

                  (g) "Person": any natural person,  corporation,  division of a
corporation,  partnership,  limited  liability  company,  trust,  joint venture,
association,  company, estate,  unincorporated organization or government or any
agency or political subdivision thereof.

                  (h)   "Subsidiaries":   with   respect  to  any  Person,   any
corporation,  association  or other  business  entity  (whether  now existing or
hereafter  organized)  of which at least a majority of the  securities  or other
ownership  interests  having ordinary voting power for the election of directors
is, at the time as of which any determination is being made, owned or controlled
by such Person or one or more subsidiaries of such Person.


                                       10


<PAGE>
<PAGE>




                  11.  Notices.  Any notice  required  or  contemplated  by this
Warrant shall be deemed to have been duly given if  transmitted by registered or
certified mail,  return receipt  requested,  to the Company at 2405 Trade Centre
Avenue, Longmont, Colorado 80503, Attention:  President, or to the Holder at the
name and address set forth in the Warrant Register maintained by the Company.

                  12.  Choice of Law. THIS WARRANT IS ISSUED UNDER AND SHALL FOR
ALL  PURPOSES BE GOVERNED BY AND  CONSTRUED IN  ACCORDANCE  WITH THE LAWS OF THE
STATE OF NEW YORK.

                  IN WITNESS  WHEREOF,  the Company has duly caused this Warrant
to be signed on its behalf,  in its  corporate  name and by its duly  authorized
officer, as of this 15th day of February 1996.


                                        NAI TECHNOLOGIES, INC.


                                        By:  /s/ Richard A. Schneider
                                             ----------------------------
                                             Richard A. Schneider
                                             Executive Vice President,
                                             Treasurer and Secretary

                                       11


<PAGE>
<PAGE>



                                                                      Schedule A


                          Section 5(f) Adjusted Amounts
<TABLE>
<S>                                                                                    <C>       
Wilcom, Inc............................................................................$  838,000
Codar Technology, Inc..................................................................$2,805,000
NAI Technologies - Systems Division Corporation........................................$  607,000
Lynwood Scientific Developments Limited................................................$1,833,000
</TABLE>


                                       12


<PAGE>
<PAGE>



                                SUBSCRIPTION FORM



                  The undersigned,  the Holder of the attached  Warrant,  hereby
irrevocably  elects to exercise purchase rights represented by such Warrant for,
and to purchase  thereunder,  the following  number of shares of Common Stock of
NAI TECHNOLOGIES, INC.:


     Number of Shares                            Purchase Price Per Share





                  The undersigned herewith makes payment of $___________________
therefor,  and requests that  certificates  for such shares (and any warrants or
other  property  issuable  upon  such  exercise)  be  issued  in the name of and
delivered  to__________________________________________________ whose address is
_____________________________________________________________(social security or
taxpayer identification  number_____________________)  and, if such shares shall
not include all of the shares issuable under such warrant, that a new warrant of
like  tenor  and date for the  balance  of the  shares  issuable  thereunder  be
delivered to the undersigned.


                                     HOLDER:



                                     ---------------------------------------
                                     Signature




                                     ---------------------------------------
                                     Signature, if jointly held




                                     ---------------------------------------
                                     Date


                                       13


<PAGE>
<PAGE>


                                 ASSIGNMENT FORM


FOR VALUE RECEIVED,___________________________________________________________
hereby sells, assigns and transfers unto


Name__________________________________________________________________________
         (Please typewrite or print in block letters)

Social Security or Taxpayer Identification Number_____________________________

the right to purchase  shares of Common Stock of NAI  TECHNOLOGIES,  INC., a New
York  corporation,  represented  by this  Warrant  to the extent of shares as to
which such right is  exercisable  and does  hereby  irrevocably  constitute  and
appoint ___________________________, Attorney, to transfer the same on the books
of the Company with full power of substitution in the premises.


DATED:_____________________




                                     ---------------------------------------
                                     Signature




                                     ---------------------------------------
                                     Signature, if jointly held




Witness:



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

                                       14
<PAGE>




<PAGE>
<PAGE>

                                                                       EXHIBIT 3
                             NAI TECHNOLOGIES, INC.

                          REGISTRATION RIGHTS AGREEMENT

                  THIS   REGISTRATION    RIGHTS   AGREEMENT   is   between   NAI
TECHNOLOGIES,  INC., a New York corporation  (the "Company"),  and the person or
persons executing this Agreement.

                                    RECITALS:

                  In  consideration of the purchase by you on the date hereof of
certain  securities of the Company to be offered in units (the  "Units"),  which
Units  include (i) $1,000  principal  amount of the  Company's  12%  Convertible
Subordinated Promissory Notes due 2001 (the "Notes"),  convertible at the option
of the holder at any time into 500 shares of the  Company's  Common  Stock,  par
value  $.10 per share  ("Common  Stock"),  upon the terms  and  conditions,  and
subject to the  adjustments,  set forth in such Notes,  and (ii) a warrant  (the
"Warrant")  entitling the holder to purchase 250 shares of Common Stock upon the
terms  and  conditions,  and  subject  to the  adjustments,  set  forth  in such
Warrants,  pursuant  to  a  Confidential  Private  Placement  Memorandum,  dated
December 15, 1995, as supplemented (the  "Memorandum"),  and as an inducement to
you to consummate the transactions  contemplated by the Memorandum,  the Company
hereby  covenants  and  agrees  with  you,  and with each  subsequent  holder of
Registrable Securities (as such term is defined below), as follows:

                  1. Certain  Definitions.  For the purposes of this  Agreement,
the following terms shall have the meanings ascribed to them:

                  (a) "Additional  Interest" shall have the meaning set forth in
Section 2(c) hereof.

                  (b) "Agreement" shall mean this Registration Rights Agreement,
as the same may be amended, modified or supplemented from time to time.

                  (c) "Commission"  shall mean the United States  Securities and
Exchange  Commission,  or  any  other  federal  agency  then  administering  the
Securities Act and the Exchange Act.

                  (d)  "Effectiveness  Period"  shall have  meaning set forth in
Section 2(a) hereof.

                  (e) "Exchange Act" shall mean the  Securities  Exchange Act of
1934, as amended, or any similar federal statute then in effect, and a reference
to a particular  section  thereof  shall be deemed to include a reference to the
comparable section, if any, of any such similar federal statute.

                  (f) "Expiration Date" shall mean December 31, 2005.



<PAGE>
<PAGE>

                  (g) "Holder" shall mean the Holder, for so long as it owns any
Registrable  Securities,  and each of its  successors,  assigns  and  direct and
indirect transferees who become registered owners of Registrable Securities.

                  (h)  "Person"  shall  mean any  natural  person,  corporation,
limited liability company, business trust, joint venture, association,  company,
partnership or government, or agency or political subdivision thereof.

                  (i)  "Prospectus"  shall mean the  prospectus  included in any
Registration  Statement, as amended or supplemented by any prospectus supplement
with  respect to the terms of the  offering  of any  portion of the  Registrable
Securities  covered by the  Registration  Statement and all other amendments and
supplements to the prospectus,  including any post-effective  amendments and all
materials incorporated by reference in the prospectus.

                  (j) "Registrable  Securities"  shall mean (i) the Notes,  (ii)
the Warrants,  (iii) the shares of Common Stock issuable upon  conversion of the
Notes,  (iv) the shares of Common Stock  issuable  upon exercise of the Warrants
and (v) any securities  issued in exchange for or substitution of any thereof or
as a  result  of a  stock  split  or  combination  or  as a  dividend  or  other
distribution  in  respect  of  any  thereof.  As to any  particular  Registrable
Securities,   once  issued,  such  securities  shall  cease  to  be  Registrable
Securities  when (A) a  registration  statement with respect to the sale of such
securities  shall  have  become  effective  under  the  Securities  Act and such
securities  shall have been  disposed of in  accordance  with such  registration
statement,  (B) they shall have been  disposed  of  pursuant to Rule 144 (or any
successor  provision)  under  the  Securities  Act,  (C) they  shall  have  been
otherwise   transferred,   new  certificates  for  them  not  bearing  a  legend
restricting  further  transfer  shall have been  delivered  by the  Company  and
subsequent  disposition of them shall not require  registration or qualification
of them under the Securities Act or any similar state law then in force (and the
holders of Registrable  Securities shall have received an opinion of independent
counsel for the Company reasonably satisfactory to such holders to the foregoing
effects),  or (D) they  shall  have  ceased to be  outstanding.  Subject to this
Section 1(g), Registrable  Securities,  if transferred,  will remain Registrable
Securities for the purposes of this Agreement.

                  (k)  "Registration  Expenses"  shall mean all of the costs and
expenses of each registration  hereunder,  and filing fees, fees and expenses of
compliance  with  securities  or blue sky laws  (including  reasonable  fees and
disbursements  of  counsel in  connection  with blue sky  qualifications  of the
Registrable Securities),  rating agency fees, National Association of Securities
Dealers (NASD) fees for review of  underwriting  agreements,  printing  expenses
(including  expenses  of  printing  the  Prospectus),   messenger  and  delivery
expenses,  the fees and expenses  incurred in connection with the listing of the
securities to be registered on each securities  exchange on which the Shares are
then listed or proposed to be listed,  and fees and disbursements of counsel for
the Company and its  independent  certified  public  accountants  (including the
expenses of any special audit or cold comfort letters  required by or incidental
to such  performance),  Securities  Act  liabilities  insurance  (if the Company
elects to obtain such  insurance),  the fees and expenses of any special experts
retained by the Company in connection

                                        2


<PAGE>
<PAGE>



with such  Registration,  reasonable fees and expenses of one counsel (who shall
be  selected by a majority of the  holders of  Registrable  Securities)  for the
holders of Registrable  Securities incurred in connection with each Registration
hereunder  and any  reasonable  out-of-pocket  expenses of such  holders (or the
agents who manage any such  holder's  accounts)  excluding  any travel costs and
counsel fees except as set forth above (but not including any underwriting fees,
discounts  or  commissions   attributable   to  the  sale  of  the   Registrable
Securities).

                  (l)  "Registration  Statement" shall have the meaning assigned
to such term in Section 5(a) of this Agreement.

                  (m) "Securities Act" shall mean the Securities Act of 1933, as
amended,  or any similar  federal  statute then in effect,  and a reference to a
particular  section  thereof  shall be deemed  to  include  a  reference  to the
comparable section, if any, of any such similar federal statute.

                  (n) "Shares" shall mean shares of Common Stock, as constituted
on the date hereof,  and any securities into which such shares may thereafter be
changed.

                  (o) "Shelf  Registration"  shall mean a registration  effected
pursuant to Section 2(a) hereof.

                  (p)  "Shelf  Registration  Statement"  shall  mean  a  "shelf"
registration statement of the Company pursuant to the provisions of Section 2(a)
of  this  Agreement  which  covers  all  of  the  Registrable  Securities  on an
appropriate  form under Rule 415 under the  Securities  Act, or any similar rule
that may be adopted by the  Commission,  and all amendments  and  supplements to
such registration statement,  including post-effective  amendments, in each case
including  the  Prospectus  contained  therein,  all  exhibits  thereto  and all
material incorporated by reference therein.

                  2. Required Registration Under the Securities Act.

                  (a) The  Company  shall,  for the  benefit  of the  holders of
Registrable  Securities,  at the Company's  cost, file with the Commission on or
prior to the later of (i)  ninety  (90) days  after the  initial  closing of the
private  placement in which the Units are sold in accordance with the Memorandum
(the "Closing") or (ii) March 31, 1996, a Shelf Registration Statement providing
for the sale by the holders of all the Registrable Securities, and shall use its
best efforts to have such Shelf Registration Statement declared effective by the
Commission as soon as practicable and, in any event,  within 60 days thereafter.
The  Company  agrees  to use its best  efforts  to keep the  Shelf  Registration
Statement  continuously  effective for a period of three years after the date of
effectiveness  (the  "Effectiveness  Period").  The Company shall not permit any
securities  other  than  Registrable  Securities  to be  included  in the  Shelf
Registration,  except for up to 250,000  shares of Common Stock held by the Bank
Lenders (as such term is defined in the  Memorandum) and up to 363,636 shares of
Common Stock held by Active  Investors II, Ltd. The Company further  agrees,  if
necessary or appropriate, to supplement or

                                        3


<PAGE>
<PAGE>



amend the Shelf Registration Statement, if required by the rules, regulations or
instructions  applicable to the  registration  form used by the Company for such
Shelf Registration  Statement or by the Securities Act or by any other rules and
regulations  thereunder  for  shelf  registrations,  and the  Company  agrees to
furnish to the holders of Registrable  Securities  copies of any such supplement
or amendment promptly after its being used or filed with the Commission.

                  (b) Effective  Registration  Statement.  A Shelf  Registration
Statement  pursuant  to Section  2(a)  above  will not be deemed to have  become
effective unless it has been declared effective by the Commission; provided that
if, after it has been declared effective, the offering of Registrable Securities
pursuant to a Shelf Registration Statement is interfered with by any stop order,
injunction  or  other  order  or  requirement  of the  Commission  or any  other
governmental agency or court, such Registration  Statement will be deemed not to
have been effective during the period of such  interference,  until the offering
of Registrable  Securities  pursuant to such Registration  Statement may legally
resume.  The Company will be deemed not to have used its  reasonable  efforts to
cause the Shelf Registration Statement to become, or to remain, effective during
the requisite period if it voluntarily takes any action that would result in any
such Registration Statement not being effective or in the holders of Registrable
Securities  covered  thereby  not being able to offer and sell such  Registrable
Securities during that period.

                  (c) Additional Interest.  In the event that either (i) a Shelf
Registration Statement is not filed with the Commission on or prior to the later
of the 90th day after the Closing or March 31, 1996 (the "Filing Date"), or (ii)
a Shelf Registration Statement is not declared effective on or prior to the 60th
day after  the  Filing  Date,  the  interest  rate  borne by the Notes  shall be
increased  (the  "Additional  Interest")  by one  percent  per  annum  from  and
including  the 91st day after the  Closing  in the case of clause  (i) above and
from and including the 61st day after the Filing Date in the case of clause (ii)
above and shall  increase by an additional one percent per annum for each 90-day
period (or portion  thereof) that any  Additional  Interest  continues to accrue
pursuant to this Section  2(c);  provided  that the  aggregate  increase in such
interest  rate  pursuant to this  Section  2(c) will in no event  (other than as
stated in the  succeeding  proviso)  exceed  five  percent  (5%) per annum,  and
provided,  further,  that the interest rate shall  increase to eighteen  percent
(18%) in the event the Shelf Registration Statement is not effective nine months
after the Closing. Upon (x) the filing of a Shelf Registration  Statement in the
case of  clause  (i)  above  or (y) the  effectiveness  of a Shelf  Registration
Statement  in the case of  clause  (ii)  above,  and  provided  that none of the
conditions  set forth in  clauses  (i) or (ii)  above  continues  to exist,  the
interest rate borne by the Notes from the date of such filing or  effectiveness,
as the case may be, will be reduced to the original interest rate.

                  In the event that the Shelf  Registration  Statement  has been
declared  effective and subsequently  ceases to be effective prior to the end of
the  Effectiveness  Period,  for a period in excess of 10 days,  whether  or not
consecutive, in any given year, then, the interest rate borne by the Notes shall
be  increased  by an  additional  one  percent  per annum on the 11th day in the
applicable  year such Shelf  Registration  Statement  ceases to be effective and
thereafter  by an additional  one percent per annum for each  additional 90 days
that such Shelf  Registration  Statement is not  effective,  subject to the same
provisions with respect to the increase in the

                                        4


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<PAGE>



interest  rate  referred to above;  provided that the interest rate borne by the
Notes will not be increased if the Registrable  Securities are otherwise  freely
tradeable  pursuant to Rule 144 under the Securities Act. Upon the effectiveness
of a Shelf Registration Statement, the interest rate borne by the Notes shall be
reduced to their original  interest rate unless and until increased as described
in this paragraph.

                  The Company shall notify Commonwealth  Associates within three
business  days after each and every date on which an event  occurs in respect of
which  Additional  Interest  is  required  to be paid  (an  "Event  Date").  The
Additional  Interest due shall be payable on each  interest  payment date to the
record  holder of Notes  entitled to receive the interest  payment to be paid on
such date as set forth in the Notes. Each obligation to pay Additional  Interest
shall be deemed to accrue from and including  the day  following the  applicable
Event Date.

                  (d)  Specific  Enforcement.   Without  limiting  the  remedies
available to the holders of  Registrable  Securities,  the Company  acknowledges
that any  failure by the Company to comply with its  obligations  under  Section
2(a) hereof may result in material  irreparable injury to such holders for which
there is no  adequate  remedy at law,  that it would not be  possible to measure
damages for such injuries  precisely and that, in the event of any such failure,
any such  holder of  Registrable  Securities  may obtain  such  relief as may be
required to specifically  enforce the Company's  obligations  under Section 2(a)
hereof.

                  3.       Piggyback Registration Rights.

                  (a) Right to  Piggyback.  Whenever  the  Company  proposes  to
register  any  Shares  (or  securities   convertible  into  or  exchangeable  or
exercisable  for Shares) under the Securities  Act, at any time on or before the
Expiration  Date,  for its own  account  or for the  account  of  other  Persons
exercising demand registration rights other than (i) pursuant to Section 4 below
or (ii) under a  Registration  Statement on Form S-4,  Form S-8 or any successor
form filed in  connection  with an exchange  offer or an offering of  securities
solely to the  Company's  existing  employees or security  holders (a "Piggyback
Registration"),  the Company will give prompt  written  notice to all holders of
Registrable  Securities of its intention to effect such a Registration  and will
use its best  efforts,  subject  to  Section  3(b)  below,  to  include  in such
Piggyback  Registration  all  Registrable  Securities  with respect to which the
Company has received written  requests for inclusion  therein within thirty (30)
days after the  receipt of the  Company's  notice.  Except as may  otherwise  be
provided in this  Agreement,  Registrable  Securities with respect to which such
request for Registration has been received will be registered by the Company and
offered  to the  public on the same  terms and  subject  to the same  conditions
applicable  to the  Piggyback  Registration  to be sold by the Company or by the
other Persons selling under such Piggyback Registration.

                  (b)  Priority  on  Piggyback  Registrations.  If  a  Piggyback
Registration relates to an underwritten offering and the managing underwriter or
underwriters  advise the  Company in writing  that in its or their  opinion  the
number of securities proposed to be sold in a Piggyback Registration exceeds the
number which can be sold in such offering within a price

                                        5


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<PAGE>



range  acceptable  to  the  Company  or  the  other  Persons  exercising  demand
registration rights, the Company will include in such Piggyback Registration the
number of securities  which, in the opinion of such underwriter or underwriters,
can be sold within such price  range,  which  securities  shall be  allocated as
follows:  (w)  first,  the  securities  proposed  to be  sold by  other  Persons
exercising  demand  registration  rights granted on or prior to the date hereof,
(x) second,  so long as the Senior  Indebtedness  (as defined in the Memorandum)
remains  outstanding,  up to an aggregate of 250,000 shares of Common Stock held
by the Bank Lenders,  provided,  that such priority shall be effective for up to
only two such  Piggyback  Registration  opportunities,  (y)  third,  Registrable
Securities  held by the Holder and  requested  to be included in such  Piggyback
Registration,  together  with any other  securities  requested to be included in
such Piggyback  Registration by other holders, pro rata among the Holder and the
other  holders  of  Registrable  Securities  (on  the  basis  of the  amount  of
Registrable  Securities then owned by each such holder) requested to be included
in such  Piggyback  Registration,  and (z) fourth,  the  securities  the Company
proposes to sell.

                  (c)  Underwriting.  If a Piggyback  Registration for which the
Company  gives  notice  is  for  a  registered  public  offering   involving  an
underwriting,  the  Company  shall so  advise  the  Holder in the  notice  given
pursuant to Section  3(a),  which notice shall  include the name of the managing
underwriter or underwriters.

                  4.       Demand Registration Rights.

                  (a) Right to Demand.  At any time on or before the  Expiration
Date, the holders of not less than a majority of the Registrable Securities then
outstanding  may make up to two  written  requests  (provided  in each case such
holders have not registered  Registrable  Securities  pursuant to Section 2 or 3
above  within 120 days prior to such  request) to the  Company for  registration
with  the  Commission  under  and  in  accordance  with  the  provisions  of the
Securities  Act of not less  than  $250,000  of the  Registrable  Securities  (a
"Demand Registration").  Within ten (10) days after receipt of such request, the
Company shall give written  notice of such requested  registration  to all other
holders of Registrable  Securities,  and, subject to the priority provisions set
forth in Section 4(b) below,  will include in such  registration all Registrable
Securities with respect to which the Company has received  written  requests for
inclusion  within thirty (30) days after the Company  gives such notice.  Unless
expressly agreed to by the Holder,  no securities of the Company or of any other
Person  other  than  Registrable  Securities  shall  be  included  in  a  Demand
Registration  except  pursuant  to the  exercise of any  piggyback  registration
rights  granted on or prior to the date  hereof.  Except as  otherwise  provided
herein,  a  registration  will not count as a Demand  Registration  until it has
become effective and the holders of the Registrable  Securities included in such
registration are legally permitted to sell all of their  Registrable  Securities
that  are  requested  to  be so  included  unless  the  holders  of  Registrable
Securities included in such Demand Registration fail to take such actions as are
required on their part to cause the registration to become  effective,  in which
case such registration shall count as a Demand Registration.


                                        6


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<PAGE>



                  (b)  Priority  on  Demand   Registrations.   If  the  managing
underwriter  or  underwriters  of a Demand  Registration  advise the  Company in
writing  that in its or their  opinion the number of  securities  proposed to be
sold in such Demand  Registration  exceeds the number  which can be sold in such
offering,  the Company will include in such Demand  Registration only the number
of securities which, in the opinion of such underwriter or underwriters,  can be
sold in such offering  which  securities  shall be allocated on a pro rata basis
among the  Registrable  Securities  and such other  securities  requested  to be
included in such Demand  Registration  pursuant to the exercise of any piggyback
registration rights granted on or prior to the date hereof.

                  (c) Selection of Underwriters.  If any Demand  Registration is
an  underwritten  offering,  a majority in interest of the Holders will select a
managing  underwriter or  underwriters to administer the offering which managing
underwriter or underwriters shall be of nationally recognized standing and shall
be reasonably acceptable to the Company; provided,  however, that the holders of
Registrable Securities  acknowledge that Commonwealth  Associates has a right of
first refusal to act as  underwriter  in connection  with any offering of Common
Stock if the terms offered by  Commonwealth  Associates  are comparable to those
being offered by other investment banking firms to similarly-situated companies,
and hereby  consent to the use of  Commonwealth  Associates  as  underwriter  in
connection with any Demand Registration.

                  5. Registration  Procedures.  With respect to any Registration
pursuant  to the  exercise  of rights  provided  by  Sections 2, 3 and 4 of this
Agreement, the Company will (subject to Sections 2(a) and 12 hereof) promptly:

          (a) prepare and file with the Commission a  Registration  Statement (a
     "Registration Statement") which includes the Registrable Securities and use
     its best efforts to cause such  Registration  Statement to become effective
     as promptly as  practicable;  provided  that before  filing a  Registration
     Statement or any  amendments  thereto or any  Prospectus,  the Company will
     furnish  to one  counsel  selected  by the  holders  of a  majority  of the
     Registrable  Securities to be included and the underwriters,  if any, draft
     copies  of all such  documents  proposed  to be  filed  at  least  five (5)
     business  days  prior  thereto,  which  documents  will be  subject  to the
     reasonable  review of such counsel and  underwriters,  and the Company will
     not file any Registration  Statement or amendment thereto or any Prospectus
     to which a majority of such holders shall reasonably  object (provided that
     nothing herein shall prevent the Company from making a timely filing of any
     report required to be filed by it pursuant to the Exchange Act in such form
     as it determines is appropriate) and will notify the holders of Registrable
     Securities  of any stop order issued or  threatened  by the  Commission  in
     connection  therewith and take all reasonable  actions  required to prevent
     the entry of such stop order or to remove it if entered;

          (b)  prepare  and  file  with  the  Commission   such  amendments  and
     post-effective amendments to the Registration Statement as may be necessary
     to keep the Registration  Statement effective for a period of not less than
     four (4) months (or such  shorter  period  which  will  terminate  when all
     Registrable  Securities  covered by such  Registration  Statement have been
     sold or withdrawn, but not prior to the expiration of any applicable period
     referred to in Section

                                        7


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<PAGE>



     4(3) of the Securities Act and Rule 174 thereunder,  if applicable, or such
     longer period pursuant to Section 2(a) hereof);  cause the Prospectus to be
     supplemented by any required Prospectus supplement,  and as so supplemented
     to be filed pursuant to Rule 424 under the Securities  Act; and comply with
     the  provisions of the  Securities Act applicable to it with respect to the
     disposition of all securities covered by such Registration Statement during
     the  applicable   period  in  accordance  with  the  intended   methods  of
     disposition by the sellers thereof set forth in such Registration Statement
     or Prospectus supplement;

          (c)  furnish  to  each  seller  of  Registrable   Securities  and  the
     underwriter  or  underwriters,  if any,  at least  one  signed  copy of the
     Registration  Statement  and any  post-effective  amendment  thereto,  upon
     request,  and such number of  conformed  copies  thereof and such number of
     copies of the Prospectus (including each preliminary  Prospectus),  and any
     documents  incorporated by reference therein, as such seller or underwriter
     may  reasonably  request  in order to  facilitate  the  disposition  of the
     Registrable  Securities being sold by such seller (it being understood that
     the Company  consents to the use of the  Prospectus  by such seller and the
     underwriter or  underwriters,  if any, in connection  with the offering and
     sale of the Registrable Securities covered by the Prospectus);

          (d) notify each seller of  Registrable  Securities  at any time when a
     Prospectus  relating to Registrable  Securities is required to be delivered
     under the Securities  Act, when the Company  becomes aware of the happening
     of any  event  as a  result  of  which  the  Prospectus  included  in  such
     Registration Statement (as then in effect) contains any untrue statement of
     a material  fact or omits to state a material  fact  necessary  to make the
     statements  therein  (in the  case  of the  Prospectus  or any  preliminary
     Prospectus,  in light of the circumstances  under which they were made) not
     misleading  and, as promptly as  practicable  thereafter,  prepare and file
     with the  Commission  and make  available a supplement or amendment to such
     Prospectus  so that,  as  thereafter  delivered to the  purchasers  of such
     Registrable  Securities,  such  Prospectus  will  not  contain  any  untrue
     statement of a material fact or omit to state a material fact  necessary to
     make the statements therein, in light of the circumstances under which they
     were made, not misleading;

          (e) use its best  efforts to cause all  Registrable  Securities  to be
     listed,  by the date such  Registrable  Securities  cease to be Registrable
     Securities as a result of  Registration  or otherwise,  on each  securities
     exchange or national  quotation  system on which the Shares are then listed
     or proposed to be listed, if any;

          (f) make  generally  available  to its  security  holders an  earnings
     statement  satisfying the provisions of Section 11(a) of the Securities Act
     no later than 45 days after the end of the 12-month  period  beginning with
     the first day of the Company's  first fiscal quarter  commencing  after the
     effective date of the  Registration  Statement,  which  earnings  statement
     shall cover said 12-month period; provided, however, that in the event that
     the first day of the Company's  first fiscal quarter  commencing  after the
     effective date of the Registration Statement shall also be the first day of
     the Company's fiscal year, such earnings  statement shall be made generally
     available no later than 90 days after the end of such 12-month period;

                                        8


<PAGE>
<PAGE>




          (g) use its  best  efforts  to  obtain  the  withdrawal  of any  order
     suspending the effectiveness of the Registration  Statement at the earliest
     possible moment;

          (h) if requested by the managing  underwriter or  underwriters  or any
     holder of  Registrable  Securities,  promptly  incorporate  in a Prospectus
     supplement or  post-effective  amendment  such  information as the managing
     underwriter or underwriters or such holder requests to be included  therein
     with  respect to the number of  Registrable  Securities  being sold by such
     holder to such underwriter or  underwriters,  the purchase price being paid
     therefor by such  underwriter or underwriters and with respect to any other
     terms of the underwritten offering of the Registrable Securities to be sold
     in such offering; and promptly make all required filings of such Prospectus
     supplement or post-effective amendment;

          (i) as promptly as practicable after filing with the Commission of any
     document which is incorporated by reference into a Registration  Statement,
     deliver a copy of such document to each holder of Registrable Securities;

          (j) on or prior to the date on which  the  Registration  Statement  is
     declared  effective,  use its best  efforts to  register  or  qualify,  and
     cooperate with the holders of a majority of the Registrable Securities, the
     underwriter or underwriters,  if any, and their counsel, in connection with
     the registration or qualification of the Registrable  Securities covered by
     the Registration  Statement for offer and sale under the securities or blue
     sky laws of each state and other  jurisdiction  of the  United  States as a
     majority of the such holders or underwriter reasonably requests in writing,
     to use its best  efforts to keep each such  registration  or  qualification
     effective, including through new filings, or amendments or renewals, during
     the period such  Registration  Statement  is required to be kept  effective
     pursuant to Section  5(b) hereof and to do any and all other acts or things
     necessary or advisable to permit the disposition in all such  jurisdictions
     of  the  Registrable  Securities  covered  by the  applicable  Registration
     Statement;

          (k)  cooperate  with the  holders of  Registrable  Securities  and the
     managing  underwriter  or  underwriters,  if any, to facilitate  the timely
     preparation  and  delivery of  certificates  (not  bearing any  restrictive
     legends)  representing   Registrable   Securities  to  be  sold  under  the
     Registration   Statement   and  enable  such   securities  to  be  in  such
     denominations  and registered in such names as the managing  underwriter or
     underwriters, if any, or any such holder may request;

          (l) use its best efforts to cause the Registrable  Securities  covered
     by the  Registration  Statement to be  registered  with or approved by such
     other governmental  agencies or authorities within the United States as may
     be  necessary  to enable  such  holder  of  Registrable  Securities  or the
     underwriter or underwriters,  if any, to consummate the disposition of such
     Registrable Securities;

          (m) enter into such customary  agreements  (including an  underwriting
     agreement in customary form) and take all such other actions as the holders
     of a majority of the Registrable

                                        9


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<PAGE>



     Securities being sold or the underwriters retained by such holders, if any,
     reasonably  request in order to expedite or facilitate  the  disposition of
     such Registrable Securities;

          (n) make available for inspection by a  representative  of the sellers
     of Registrable Securities, any underwriter participating in any disposition
     pursuant to such Registration  Statement,  and any attorney,  accountant or
     other agent retained by any such seller or underwriter  (collectively,  the
     "Inspectors"),   all  financial  and  other  records,  pertinent  corporate
     documents  and  properties  of the  Company  and its  direct  and  indirect
     subsidiaries (collectively, the "Records") as shall be reasonably necessary
     to enable them to exercise  their due diligence  reasonably,  and cause the
     Company's  officers,  directors  and  employees  to supply all  information
     reasonably  requested  by any  such  Inspectors  in  connection  with  such
     Registration  Statement;  provided  that  the  Records  which  the  Company
     determines,  in good faith,  to be  confidential  and which it notifies the
     Inspectors are confidential shall not be disclosed to the Inspectors unless
     (x) the  disclosure  of such  Records  is  necessary  to avoid or correct a
     misstatement or omission in the  Registration  Statement or (y) the release
     of such  Records is ordered  pursuant  to a subpoena  or other order from a
     court of competent jurisdiction;  provided,  however, that any decision not
     to  disclose  information  pursuant  to  clause  (x)  shall  be made  after
     consultation with counsel for the Company,  and such  representative of the
     sellers agrees that it will,  upon learning that disclosure of such Records
     is sought in a court of competent jurisdiction,  give notice to the Company
     and allow the Company, at the Company's expense,  to undertake  appropriate
     action to prevent disclosure of the Records deemed confidential;

          (o) use its best  efforts  to obtain a cold  comfort  letter  from the
     Company's  independent  public  accountants  in customary form and covering
     such matters of the type  customarily  covered by cold comfort letters as a
     representative of the sellers of Registrable Securities reasonably request;
     and

          (p) furnish each seller of Registrable  Securities  with an opinion of
     its counsel  (reasonably  acceptable to such seller) to the effect that (i)
     such  registration  statement has become effective under the Securities Act
     and no order suspending the effectiveness of such  registration  statement,
     preventing  or  suspending  the use of  such  registration  statement,  any
     preliminary  prospectus,   any  final  prospectus,   or  any  amendment  or
     supplement  thereto  has  been  issued,  nor  has  the  SEC  instituted  or
     threatened to institute any proceedings with respect to such an order, (ii)
     such  registration  statement  and each  prospectus  forming a part thereof
     (including each  preliminary  prospectus),  and any amendment or supplement
     thereto,  complies  as to form  with the  Securities  Act and the rules and
     regulations  thereunder,  and (iii) such  counsel has no  knowledge  of any
     material  misstatement  or omission in such  registration  statement or any
     prospectus,  as amended or supplemented except no opinion need be expressed
     as to the financial statements and related schedules,  and counsel shall be
     entitled to rely on opinions of other counsel  reasonably  satisfactory  to
     such sellers regarding matters of foreign law and intellectual property.


                                       10


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<PAGE>



                  The Holder, upon receipt of any notice from the Company of the
happening of any event of the kind  described in Section  5(d),  will  forthwith
discontinue disposition of the Registrable Securities until the Holder's receipt
of the copies of the supplemented or amended Prospectus  contemplated by Section
5(d) or until it is advised in writing  (the  "Advice")  by the Company that the
use of the Prospectus may be resumed,  and has received copies of any additional
or supplemental  filings which are  incorporated by reference in the Prospectus,
and,  if so  directed  by the  Company,  the Holder  will,  or will  request the
managing  underwriter  or  underwriters,  if any,  to deliver to the Company all
copies, other than permanent file copies then in the Holder's possession, of the
Prospectus  covering such Registrable  Securities at the time of receipt of such
notice.  In the event the Company  shall give any such  notice,  the time period
mentioned  in Section  5(b) shall be  extended  by the number of  business  days
during the period  from and  including  the date of the giving of such notice to
and  including  the date when the Holder  shall have  received the copies of the
supplemented or amended Prospectus contemplated by Section 5(d) or the Advice.

                  The Holder  shall  furnish  to the  Company  such  information
regarding  the  Registrable  Securities  held by it and the  intended  method of
disposition  thereof and other information  concerning the Holder as the Company
shall  reasonably  request  and as  shall be  required  in  connection  with the
Registration Statement to be filed by the Company.

                  6. Holdback Arrangements.

                  (a)  Restrictions  on Public  Sale by  Holder  of  Registrable
Securities.  To the extent not  inconsistent  with  applicable  law,  the Holder
agrees not to effect any public sale or  distribution  of the  securities  being
registered or a similar security of the Company,  or any securities  convertible
into or  exchangeable  or  exercisable  for such  securities,  including  a sale
pursuant  to Rule 144 or Rule 144A  under the  Securities  Act,  during  and not
exceeding 180 days after the effective date of a Registration Statement relating
to an underwritten  Registration of Registrable Securities, as may be reasonably
requested by the managing  underwriter or  underwriters,  except as part of such
Registration Statement.

                  (b)  Restrictions  on Public Sale by the Company.  The Company
agrees (x) not to effect  any  public  sale or  distribution  of any  securities
similar  to  those  being  registered,  or any  securities  convertible  into or
exchangeable  or exercisable  for such  securities  (other than any such sale or
distribution of such  securities in connection with any merger or  consolidation
involving the Company or a subsidiary  thereof or the acquisition by the Company
or a subsidiary thereof of the capital equity or substantially all of the assets
of any other  Person or with  respect to any  employee  benefit or stock  plan),
during the fourteen (14) days prior to, and during such period not exceeding 180
days after the effective date of any  Registration  Statement  except as part of
such Registration  Statement;  and (y) that any agreement entered into after the
date of this  Agreement  pursuant to which the Company issues or agrees to issue
any privately placed securities shall contain a provision under which holders of
such securities  agree not to effect any public sale or distribution of any such
securities  during the period  described in (x) above,  in each case including a
sale pursuant to Rule 144 or Rule 144A under the Securities Act (except

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<PAGE>



as part of any such registration,  if permitted);  provided,  however,  that the
provision of this Section 6(b) shall not prevent the  conversion  or exchange of
any securities pursuant to their terms as in effect prior to the commencement of
such period into or for other securities.

                  (c) Other Registrations. If the Company has previously filed a
Registration  Statement  with  respect to  Registrable  Securities,  and if such
previous registration has not been withdrawn or abandoned,  the Company will not
file or cause to be effective  any other  registration  of any of the Shares (or
securities convertible into or exchangeable or exercisable for the Shares) under
the Securities Act (except on Form S-4 or S-8 or any successor forms or filed in
connection  with an exchange  offer or an offering of  securities  solely to the
Company's existing employees or security holders),  whether on its own or at the
request of any holder or holders of the Shares (or securities  convertible  into
or exchangeable  or exercisable for the Shares),  until a period of at least 120
days has elapsed from the effective date of such previous registration (provided
that in the case of a Demand Registration such period shall commence on the date
the Company is first served the notice of demand registration and shall continue
until at least 180 days have  elapsed  from the  effective  date of such  Demand
Registration).

                  7. Indemnification; Contribution.

                  (a)  Indemnification  by the  Company.  The Company  agrees to
indemnify and hold harmless each holder of  Registrable  Securities  and each of
such  holder's  officers,  directors  and agents and each  Person,  if any,  who
controls a holder of Registrable  Securities within the meaning of Section 15 of
the  Securities  Act or Section 20 of the Exchange Act (each,  an  "Indemnitee")
from and against any and all losses, claims,  damages,  liabilities and expenses
(including reasonable attorneys' fees and costs of investigation) arising out of
or based upon any untrue  statement  or alleged  untrue  statement of a material
fact contained in any Registration Statement or Prospectus, or arising out of or
based upon any  omission or alleged  omission to state  therein a material  fact
required to be stated  therein or necessary to make the  statements  therein not
misleading,  except  insofar as such losses,  claims,  damages,  liabilities  or
expenses  arise  out of or are  based  upon  information  with  respect  to such
Indemnitee  furnished in writing to the Company by such Indemnitee expressly for
use therein. It is agreed that the  indemnification  agreement contained in this
Section  7(a) shall not apply to amounts  paid in  settlement  of any such loss,
claim, damage or liability if such settlement is effected without the consent of
the Company (which consent has not been unreasonably withheld). The Company also
agrees to indemnify any underwriters on substantially  the same basis as that of
the  indemnification of the holders of Registrable  Securities  provided in this
Section 7(a).


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                  (b) Conduct of Indemnification  Proceedings.  If any action or
proceeding  (including  any  governmental  investigation)  shall be  brought  or
asserted  against  the  holders  of  Registrable  Securities  (or its  officers,
directors  or agents) or any Person  controlling  any such  holder in respect of
which  indemnity may be sought from the Company,  the Company shall be permitted
to assume the defense of such claim,  unless in the reasonable  judgment of such
Indemnitee a conflict of interest  may exist  between  such  Indemnitee  and the
Company with respect to such claim or  differing or  additional  defenses may be
available to such  Indemnitee.  If defense of a claim is assumed by the Company,
Indemnitees shall not be liable for any settlement of such action or proceedings
effected  without their prior written  consent.  The Company will not consent to
entry of any judgment or enter into any settlement  which does not include as an
unconditional  term  thereof  the giving by the  claimant or  plaintiff  to such
Indemnitee  of a  release  from  all  liability  in  respect  of such  claim  or
litigation.  If the  Company is not  entitled  to, or elects not to,  assume the
defense of a claim,  it will not be  obligated  to pay the fees and  expenses of
more than one counsel for the  Indemnitees as a group with respect to such claim
in each  jurisdiction  in which a claim is  brought,  unless  in the  reasonable
judgment  of any  Indemnitee  a conflict  of  interest  may exist  between  such
Indemnitee and any other  Indemnitee  with respect to such claim or differing or
additional  defenses  may be available  to such  Indemnitee,  in which event the
Company  shall be  obligated  to pay the fees and  expenses  of such  additional
counsel.  Each holder of  Registrable  Securities  agrees to give prompt written
notice  to  the  Company  after  its  receipt  of  any  written  notice  of  the
commencement of any action, suit, proceedings or investigation or threat thereof
made in writing for which such holder may claim  indemnification or contribution
pursuant to this Agreement;  provided, however, that failure to give such notice
shall  not limit  the  Indemnitee's  right to  indemnification  or  contribution
hereunder  unless and to the extent that the Company did not otherwise  learn of
such action and such  failure  results in the  forfeiture  by it of  substantial
rights and defenses.

                  (c) Indemnification by the Holders. Each holder of Registrable
Securities agrees to indemnify and hold harmless the Company, and its directors,
officers and agents and each Person, if any, who controls the Company within the
meaning of either Section 15 of the Securities Act or Section 20 of the Exchange
Act to the same  extent as the  foregoing  indemnity  from the  Company  to such
holder but only with respect to information  furnished in writing by such holder
with respect to such holder which  contained a material  misstatement of fact or
omission of a material fact expressly for use in any  Registration  Statement or
any amendment thereto or any Prospectus,  or any preliminary Prospectus relating
to the Registrable Securities. In case any action or proceeding shall be brought
against  the  Company,  each  holder of  Registrable  Securities  or any of such
holder's  respective  directors,  officers  or agents,  or any such  controlling
Person,  in respect of which  indemnity may be sought against such holder,  such
holder shall have the rights and duties  given to the Company,  and the Company,
or its directors,  officers or agents or such controlling Person, shall have the
rights and duties given to such holder by Section 7(b).


                                       13


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                  (d) Contribution.  If the indemnification provided for in this
Section 7 is unavailable to the Company,  the holders of Registrable  Securities
or the underwriters in respect to any losses,  claims,  damages,  liabilities or
judgments  referred to herein,  then each such  indemnifying  party,  in lieu of
indemnifying  such  indemnified  party,  shall  contribute to the amount paid or
payable by such indemnified party as a result of such losses,  claims,  damages,
liabilities  and judgments in such  proportion as is  appropriate to reflect the
relative fault of the indemnifying parties and indemnified parties in connection
with such statements or omissions which resulted in the losses, claims, damages,
liabilities   or   judgments,   as  well  as  any   other   relevant   equitable
considerations.  The relative fault of such  indemnifying  party and indemnified
parties shall be  determined  by reference  to, among other things,  whether the
untrue or alleged untrue statement of a material fact or the omission or alleged
omission to state a material fact relates to information supplied by such party,
and  the  parties'  relative  intent,  knowledge,   access  to  information  and
opportunity to correct or prevent such statement or omission.

                  The Company and the holders of  Registrable  Securities  agree
that it would not be just and equitable if contribution pursuant to this Section
7(d) were determined by pro rata allocation or by any other method of allocation
which does not take account of the equitable  considerations  referred to in the
immediately  preceding  paragraph.  The amount paid or payable by an indemnified
party as a result of the  losses,  claims,  damages,  liabilities  or  judgments
referred to in the immediately  preceding  paragraph shall be deemed to include,
subject  to the  limitation  set  forth  above,  any  legal  or  other  expenses
reasonably  incurred by such indemnified party in connection with  investigating
or  defending  any  such  action  or  claim.  No  Person  guilty  of  fraudulent
misrepresentations  (within the meaning of Section 11(f) of the Securities  Act)
shall be  entitled  to  contribution  from any Person who was not guilty of such
fraudulent  misrepresentations.  For the  purposes of this  Section  7(d),  each
director of the Company, each officer who signed the Registration  Statement and
each Person,  if any, who controls the Company  within the meaning of Section 15
of the Securities Act shall have the same rights to contribution as the Company.

                  8. Participation in Underwritten  Registrations.  No holder of
Registrable   Securities  may  participate  in  any  underwritten   Registration
hereunder (which shall be conducted in accordance with the provisions of Section
2, 3 or 4) unless  such  holder  (i)  agrees to sell such  holder's  Registrable
Securities  on the basis  provided in any  customary  underwriting  arrangements
(approved by the holders of Registrable  Securities as provided herein) and (ii)
completes  and executes  all  questionnaires,  powers of attorney,  underwriting
agreements  and  other  documents  reasonably  required  under the terms of such
underwriting arrangements and these registration rights; provided, however, such
holder shall not be required to make  representations  or give  indemnifications
except  with  respect  to  information  provided  in  writing  by the  holder of
Registrable Securities concerning such holder and its plan of distribution.


                                       14


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<PAGE>



                  9.  Rule  144.  The  Company  covenants  that it will file any
reports required to be filed by it under the Securities Act and the Exchange Act
and the rules and regulations  adopted by the Commission  thereunder (or, if the
Company is not required to file such reports,  it will,  upon the request of the
holders of Registrable Securities,  make publicly available other information so
long as necessary to permit sales under Rule 144 under the Securities Act), that
it will take such further  action as the holders of  Registrable  Securities may
reasonably request,  all to the extent required from time to time to enable such
holders to sell Registrable Securities without registration under the Securities
Act within the limitations of the exemptions  provided by (i) Rule 144 under the
Securities  Act,  as such rule may be  amended  from  time to time,  or (ii) any
similar rule or regulation hereafter adopted by the Commission. Upon the request
of the holders of Registrable Securities,  the Company will deliver to each such
holder a written  statement as to whether it has complied with the  requirements
of this Section 9.

                  10. Registration  Expenses.  The Registration Expenses related
to  the  Shelf  Registration,   first  Demand  Registration  and  any  Piggyback
Registration shall be borne solely by the Company.

                  11.      Stand-Off and Special Audit.

                  (a)  Stand-Off.  If at the  time of any  request  for a Demand
Registration  pursuant  to  Section 4, the  Company  (i) is engaged or has fixed
plans to  engage,  within  thirty  (30)  days of the time of the  request,  in a
registered  public  offering as to which the holders of  Registrable  Securities
may,  pursuant to Section 4, include all Registrable  Securities  proposed to be
sold by them,  and which in fact  becomes  effective  within  90 days  after the
request,  or (ii) is  engaged  in any other  activity  which,  in the good faith
determination of the Company's board of directors,  would be adversely  affected
by the Demand  Registration to the material  detriment of the Company,  then the
Company may at its option  direct that such  request be delayed for a period not
to exceed six (6) months from the effective date of such offering or the date of
commencement of such other material activity,  as the case may be, provided that
each holder of Registrable  Securities  has had no other request  delayed during
the six months prior to such request.

                  (b) Provisions for Special Audit.  In the event that a special
audit of the  Company's  financial  statements  would be  required  to  effect a
Registration  pursuant  to Section 4, the  Company  shall  promptly  notify each
holder of  Registrable  Securities  that a special  audit is  required.  In such
event, such holders shall have the right to either (i) withdraw such request for
Registration, in which case the request shall not count as a Demand Registration
to which such holders are entitled under this Agreement or (ii) pay the expenses
of conducting the special audit.

                  12. Public Trading Market.  Until the earlier of (a) three (3)
years after the date  hereof or (b) the date on which  there are no  Registrable
Securities,  the Company shall use its best efforts to maintain a public trading
market for its Shares.


                                       15


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                  13. Representations and Warranties of the Company.

                  (a) The execution,  delivery and performance of this Agreement
by the Company have been duly authorized by all requisite  corporate  action and
will not violate any provision of law, any order of any court or other agency of
government, the Restated Certificate of Incorporation or By-laws of the Company,
or any provision of any indenture,  agreement or other instrument to which it or
any of its properties or assets is bound,  or conflict with,  result in a breach
of or constitute  (with due notice or lapse of time or both) a default under any
such  indenture,  agreement  or other  instrument,  or result in the creation or
imposition of any lien,  charge or encumbrance of any nature whatsoever upon any
of the properties or assets of the Company.

                  (b) This  Agreement has been duly  executed,  and delivered by
the Company and  constitutes  the legal,  valid and  binding  obligation  of the
Company, enforceable in accordance with its terms.

                  14. Miscellaneous.

                  (a)  Other  Registration  Rights.  Except as  provided  in the
Memorandum,  the Company does not have and shall not grant  registration  rights
with  respect to any  securities  of the Company to any Person that are superior
to, or that adversely affect, the registration  rights granted to the holders of
Registrable  Securities pursuant to this Agreement.  The Company shall not enter
into any agreement inconsistent with any of the provisions hereof.

                  (b) Amendments.  This Agreement may not be amended without the
written  consent of the Company  and a majority  of the  holders of  Registrable
Securities.

                  (c) Successors and Assigns.  The Company may not sell, assign,
transfer or  otherwise  convey any of its rights or  delegate  any of its duties
under  this  Agreement,   except  to  a  corporation   which  has  succeeded  to
substantially  all of the  business and assets of the Company and has assumed in
writing  its  obligations  under this  Agreement,  and this  Agreement  shall be
binding on the Company and such successor.  This Agreement shall be binding upon
and inure to the benefit of and be  enforceable by the Holder and its successors
and assigns. Without limiting the generality of the foregoing, any transferee of
Registrable  Securities  shall have the rights set forth in this Agreement,  and
such rights  shall be  enforceable  against the Company by such  transferees  as
third-party beneficiaries.

                  (d) Notices. All notices and other communications provided for
hereunder shall be given and shall be effective as provided in the Warrant.

                  (e) Descriptive  Headings.  The headings in this Agreement are
for  convenience of reference  only and shall not limit or otherwise  affect the
meaning of terms contained herein.


                                       16


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                  (f)  Severability.  In the  event  that any one or more of the
provisions,  paragraphs,  words, clauses, phrases or sentences contained herein,
or the application  thereof in any  circumstances,  is held invalid,  illegal or
unenforceable  in any  respect  for  any  reason,  the  validity,  legality  and
enforceability of such provision, paragraph, word, clause, phrase or sentence in
every other respect and of the remaining provisions, paragraphs, words, clauses,
phrases or sentences hereof shall not be in any way impaired,  it being intended
that  all  rights,  powers  and  privileges  of  the  parties  hereto  shall  be
enforceable to the fullest extent permitted by law.

                  (g)  Counterparts.  This  Agreement  may be executed in two or
more counterparts,  each of which shall be deemed an original,  but all of which
shall constitute one and the same  instrument,  and it shall not be necessary in
making  proof of this  Agreement  to produce  or account  for more than one such
counterpart.

                  (h)  Governing  Law. THIS  AGREEMENT  SHALL BE GOVERNED BY AND
CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

                  (i) Remedies.  Without  affecting the rights of holders of the
Registrable  Securities in any way pursuant to Section 2(d) hereof,  the Company
acknowledges  that monetary  damages will not be adequate  compensation  for any
loss incurred by reason of a breach by it of the  provisions  hereof and agrees,
to the  fullest  extent  permitted  by law,  to waive the defense of adequacy of
legal remedies in any action for specific performance hereof.

                  (j) Merger,  etc. If, directly or indirectly,  (i) the Company
shall merge with and into,  or  consolidate  with,  any other  Person,  (ii) any
Person  shall  merge with and into,  or  consolidate  with,  the Company and the
Company shall be the surviving  corporation of such merger or consolidation and,
in connection with such merger or consolidation,  all or part of the Registrable
Securities  shall be changed into or exchanged for stock or other  securities of
any other Person,  then, in each such case,  proper  provision  shall be made so
that such Person shall be bound by the provisions of this Agreement and the term
"Company" shall thereafter be deemed to refer to such Person.

                  IN WITNESS  WHEREOF,  each of the  undersigned has duly caused
this  Registration  Rights  Agreement to be signed on its behalf as of this 15th
day of February 1996.


                                    NAI TECHNOLOGIES, INC.



                                    By: /s/ Richard A. Schneider
                                        ------------------------------------
                                        Name: Richard A. Schneider
                                        Title: Executive Vice President

                                       17


<PAGE>
<PAGE>




                                   FOR INDIVIDUALS:


                                   /s/Charles S. Holmes
                                   ------------------------------------------
                                   Signature of Investor


                                   Charles S. Holmes
                                   ------------------------------------------
                                   Name of Investor (please print)

                                   117 Whites Lane
                                   Southampton, N.Y. 10068
                                   ------------------------------------------
                                   Residence Address (please print)


                                   FOR CORPORATIONS:



                                   ------------------------------------------
                                   Name of Corporation



                                   ------------------------------------------
                                   Executive Officer (please print)


                                   By:
                                       --------------------------------------
                                            Signature of Executive Officer


                                   FOR PARTNERSHIPS:



                                   ------------------------------------------
                                   Name of Partnership



                                   ------------------------------------------
                                   Name of partner (please print)


                                   By:
                                       --------------------------------------
                                               Signature of Partner

                                       18


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