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                                 LOAN AGREEMENT

     THIS  LOAN  AGREEMENT  (this  "Agreement")  is  dated as of the 14th day of
October,  2004  and  is by and  between  M-TRON  INDUSTRIES,  INC.,  a  Delaware
corporation  ("M-TRON"),  and PIEZO  TECHNOLOGY,  INC.,  a  Florida  corporation
(collectively,  the "Borrowers"), and FIRST NATIONAL BANK OF OMAHA (the "Bank"),
a national banking association established at Omaha, Nebraska.

                              W I T N E S S E T H :

     WHEREAS,  M-TRON has an existing term loan with the Bank  evidenced by term
note  number  2000001751-6  with a due date of April  30,  2007  pursuant  to an
existing  additional  loan agreement  with the Bank,  which shall remain in full
force in accordance with its terms; and

     WHEREAS,  M-TRON has an  existing  revolving  line of credit  with the Bank
evidenced by  revolving  note number  2000001751-5  with a due date of April 30,
2005 pursuant to an existing  additional  loan  agreement  with the Bank,  which
shall be paid in full from the proceeds of the Revolving Note; and

     WHEREAS, the Borrowers have requested the Bank to lend to the Borrowers the
sum of up to  $5,000,000  for the  purpose  of  partially  funding  the  cost of
acquiring 100% of the outstanding  shares of Piezo  Technology,  Inc., a Florida
corporation  ("Piezo"),  in the form of two loans in the  amounts of  $2,000,000
(the "Term Loan") and $3,000,000 (the "Bridge Loan"), together with a $5,500,000
revolving line of credit (the "Revolving Loan") (collectively referred to as the
"Loans"); and

     WHEREAS,  the Bank is willing  to provide  such  credit  facilities  to the
Borrowers upon the terms and conditions herein set forth.

                                   ARTICLE I

                                   DEFINITIONS

     SECTION 1.01. DEFINED TERMS. As used in this Agreement, the following terms
have the  following  meanings  (terms  defined in the  singular to have the same
meaning when used in the plural and vice versa):

     "Affiliate" means any person (a) which directly or indirectly controls,  or
is  controlled  by,  or  is  under  common  control  with,  the  Borrowers  or a
Subsidiary;  (b) which directly or indirectly  beneficially  owns or holds 5% or
more of any class of voting stock of the Borrowers or any Subsidiary;  or (c) 5%
or more of the voting  stock of which is  directly  or  indirectly  beneficially
owned or held by the Borrowers or a  Subsidiary.  The term  "control"  means the

possession,  directly  or  indirectly,  or the  power to  direct  or  cause  the
direction  of the  management  and  policies  of a person,  whether  through the
ownership of voting securities, by contract, or otherwise.

     "Banking Day" means a day on which the Bank is open for  substantially  all
of its business.

     "Borrower" or "Borrowers"  shall mean M-TRON  Industries,  Inc., a Delaware
corporation  and Piezo  Technology,  Inc.,  a Florida  corporation  as joint and
several borrowers under this Agreement.

     "Borrowing Base" means the lesser of:

          (a) $5,500,000,  less the amount of any Letters of Credit in an amount
     not to exceed $100,000,  issued and outstanding on the Borrowers'  account;
     or

          (b)  The  aggregate  of (i)  80% of the  Borrowers'  current  accounts
     receivable on the date reported, plus (ii) 50% of the Borrowers' Inventory,
     (up to a maximum amount of availability of $2,600,000)  valued at the lower
     of cost or market,  and less any Accounts  reasonably  deemed ineligible by
     the Bank.

     "Bridge Loan" shall have the meaning set forth in Section 2.01.

     "Bridge  Loan  Termination  Date"  shall mean the  earliest to occur of the
following:  (a) a date  that is one year  subsequent  to the date of the  Bridge
Note, (b) the date the Obligations  are  accelerated  pursuant to this Agreement
and (c) the date the Bank has received (i) notice in writing from the  Borrowers
of the Borrowers'  election to termination this Agreement and (ii)  indefeasible
payment in full of the Obligations.

     "Bridge Note" shall have the meaning set forth in Section 2.02.

     "Business Day" means a Banking Day on which  commercial  banks are open for
business in Omaha, Nebraska.

     "Capital  Leases"  shall have the same  meaning in this  Agreement as those
terms are defined by GAAP.

     "Closing"  shall mean the date on which the Bank receives  this  Agreement,
executed by the Borrowers,  together with the Term Note, the Bridge Note and the
Revolving Note.

     "Code"  means the Internal  Revenue  Code of 1986,  as amended from time to
time, and the regulations and published interpretations thereof.

     "Collateral" means all Property which is subject or is to be subject to the
Lien granted by the Security Agreement.

     "Commonly Controlled Entity" means an entity,  whether or not incorporated,
which is under common  control with the Borrowers  within the meaning of Section
414(b) or 414(c) of the Code.

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     "Debt" means (a) all  Indebtedness;  (b) any liability for borrowed  money;
(c)  obligations  evidenced  by  bonds,  debentures,   notes  or  other  similar
instruments;  (d)  obligations  for the deferred  purchase  price of Property or
services (including trade obligations);  (e) obligations as lessee under Capital
Leases;  (f) current  liabilities in respect of unfunded  vested  benefits under
Plans covered by ERISA; (g) obligations under letters of credit; (h) obligations
under acceptance  facilities;  and (i) all guaranties,  endorsements (other than
for  collection  or  deposit  in the  ordinary  course  of  business)  and other
contingent  obligations  to purchase,  to provide  funds for payment,  to supply
funds to invest  in any  person or  entity  or  otherwise  to assure a  creditor
against loss.

     "Default" means any of the events specified in Article VIII, whether or not
any  requirement  for the giving of notice,  the lapse of time,  or both, or any
other condition, has been satisfied.

     "Dollars"  and the sign "$" mean  lawful  money  of the  United  States  of
America.

     "EBITDA"  means  earnings  before   interest,   taxes,   depreciation   and
amortization, all experienced during the applicable reporting period.

     "ERISA"  means the Employee  Retirement  Income  Security  Act of 1974,  as
amended from time to time,  and the  regulations  and published  interpretations
thereof.

     "Event of  Default"  has the  meaning  provided  for in  Article IX of this
Agreement.

     "Excess  Cash Flow" means EBITDA  less:  payments to the Bank;  payments on
account of Subordinated Debt; and less allowable capital expenditures.

     "Fixed  Charge  Coverage  Ratio" means as of any day the ratio derived when
comparing  EBITDA,  less  capital  expenditures,  dividends  and  taxes  to  the
Borrowers'  payments  on the  principal  and  interest  of the  Obligations  and
Subordinated  Debt made during the  applicable  reporting  period ending on that
day.

     "GAAP" means generally accepted accounting  principles,  applied on a basis
consistent  with the  accounting  principles  applied in the  preparation of the
annual financial statements of the Borrowers referred to in Section 4.04 of this
Agreement. All accounting terms not otherwise defined in this Agreement have the
meaning assigned to them in accordance with GAAP.

     "Guarantor" means Lynch Corporation, an Indiana corporation.

     "Guaranty" means the Guaranty in substantially  the form of Exhibit G to be
delivered by the Guarantor under the terms of this Agreement.

     "Indebtedness"  means,  as to the  Borrowers,  all  items of  indebtedness,
obligation  or   liability,   whether   matured  or  unmatured,   liquidated  or
unliquidated,  direct or  contingent,  joint or several  including,  but without
limitation:

          (a)  All  indebtedness  guaranteed,  directly  or  indirectly,  in any
     manner,  or endorsed  (other than for collection or deposit in the ordinary
     course of business) or discounted with recourse;

                                       3

          (b) All  indebtedness  in effect  guaranteed,  directly or indirectly,
     through   agreements,   contingent   or  otherwise  (i)  to  purchase  such
     indebtedness;  or (ii) to  purchase,  sell or lease (as  lessee or  lessor)
     property,  products, materials or supplies or to purchase or sell services,
     primarily  for the purpose of enabling  the debtor to make  payment of such
     Indebtedness or to insure the owner of the Indebtedness against loss;

          (c) All  indebtedness  secured  by (or for  which  the  holder of such
     Indebtedness  has a right,  contingent or otherwise,  to be secured by) any
     mortgage, deed of trust, pledge, lien, security interest or other charge or
     encumbrance upon property owned or acquired subject thereto, whether or not
     the liabilities secured thereby have been assumed; and

          (d) All indebtedness incurred as the lessee of goods or services under
     leases  that,  in  accordance  with GAAP,  should not be  reflected  on the
     lessee's balance sheet.

     "Inventory" shall mean Borrower's merchandise,  raw materials, and finished
and unfinished products which have not yet been sold.

     "Lien"  means any  mortgage,  deed of  trust,  pledge,  security  interest,
hypothecation,  assignment, deposit arrangement, encumbrance, lien (statutory or
other) or  preference,  priority or other  security  agreement  or  preferential
arrangement,  charge or encumbrance of any kind or nature whatsoever (including,
without limitation, any conditional sale or other title retention agreement, any
financing  lease having  substantially  the same  economic  effect as any of the
foregoing and the filing of any financing statement under the Uniform Commercial
Code or comparable law of any jurisdiction to evidence any of the foregoing).

     "Loan  Documents"  means this  Agreement and each  document  referred to in
Article II of this Agreement.

     "Material  Adverse Effect" means a material adverse effect on the financial
condition, properties or operations of either of the Borrowers.

     "Mortgage" means the agreement  between the Borrowers and the Bank creating
a first lien on the  Property  and a security  interest  in all of the  personal
property located thereon as security for payment of the Obligations.

     "National  Prime  Rate"  shall  mean the Prime Rate  published  by The Wall
Street Journal.

     "Note" or "Notes" means any  promissory  note delivered by the Borrowers to
the Bank.

     "Obligations" means the obligation of the Borrowers:

          (a) to pay the  principal of and  interest on the Notes in  accordance
     with the terms thereof and to satisfy all of its other  liabilities  to the
     Bank,  whether  hereunder or  otherwise,  whether now existing or hereafter
     incurred,  matured or unmatured,  direct or  contingent,  joint or several,
     including any extensions, modifications, renewals thereof and substitutions
     therefor and including, but not limited to, any obligations under letter of
     credit agreements;

                                       4

          (b) to repay to the Bank all amounts advanced by the Bank hereunder or
     otherwise on behalf of the Borrowers,  including,  but without  limitation,
     advances  for  principal  or interest  payments to prior  secured  parties,
     mortgagees or licensers, or taxes, levies,  insurance,  rent or repairs to,
     or maintenance or storage of, any of the real or personal property securing
     the Borrowers' payment and performance of this Agreement; and

          (c) to reimburse the Bank, on demand,  for the Bank's  reasonable  and
     necessary  out-of-pocket  expenses and costs, including the reasonable fees
     and  expenses  of  its  counsel,   in  connection  with  the   preparation,
     administration,  amendment,  modification, or enforcement of this Agreement
     and the Loan Documents required hereunder,  including,  without limitation,
     any  proceeding  brought or  threatened  to  enforce  payment of any of the
     Obligations referred to in the foregoing subparagraphs (a) and (b).

     "PBGC" shall mean the Pension Benefit Guaranty Corporation.

     "Permit"  or  "Permits"  means any license or permit,  and all  licenses or
permits,  required under any environmental law or regulation required to operate
the facilities of the Borrowers.

     "Property"  or  "Properties"  shall  mean the real  property  set  forth in
Exhibit A which is subject to the Mortgage.

     "Revolving Loan" shall have the meaning set forth in Section 2.09.

     "Revolving  Loan  Termination  Date"  means  the  earliest  to occur of the
following:  (a) May 31,  2005,  (b) the date  the  Obligations  are  accelerated
pursuant to this  Agreement and (c) the date the Bank has received (i) notice in
writing  from  the  Borrowers  of the  Borrowers'  election  to  terminate  this
Agreement and (ii) indefeasible payment in full of the Obligations.

     "Revolving Note" shall have the meaning set forth in Section 2.10.

     "Security Agreement" means the agreement between the Borrowers,  as debtor,
and the Bank, as secured party,  creating a first  security  interest in all the
Borrowers' assets, including general intangibles, securing the Obligations.

     "Subordinated  Debt" means  Indebtedness of the Borrowers to entities other
than the Bank that has been subordinated, in form acceptable to the Bank, to the
Obligations.

     "Tangible  Net  Worth"  means  total  assets  less total  liabilities  (but
excluding  Subordinated  Debt  existing  on the Closing  Date,  in an amount not
exceeding  $2,500,000) and less the following  types of assets:  (a) receivables
and other investments in or amounts due from any shareholder,  employee or other
person or entity  related to or  affiliated  with the  Borrowers;  (b) goodwill,
patents, copyrights,  mailing lists, trade names, trademarks,  servicing rights,
organizational  and  franchise  costs,  bond  underwriting  costs and other like
assets properly classified as intangible;  and (c) treasury stock.  Tangible Net
Worth shall not include any debt due to the Borrowers not acceptable to the Bank
in the exercise of its reasonable discretion.

     "Term Loan" shall have the meaning set forth in Section 2.05.

                                       5

     "Term Loan Termination  Date" means the earliest to occur of the following:
(a) a date which is three years subsequent to the date of the Term Note, (b) the
date the Obligations are accelerated pursuant to this Agreement and (c) the date
the Bank has received (i) notice in writing from the Borrowers of the Borrowers'
election to terminate  this Agreement and (ii)  indefeasible  payment in full of
the Obligations.

     "Term Note" shall have the meaning set forth in Section 2.06.

     "Working  Capital"  means  current  assets,  less  investments  in or other
amounts  due from any  member,  employee  or any person or entity  related to or
affiliated  with the Borrowers and less  prepayments,  less current  liabilities
(less any  portion of such  current  liabilities  that  constitute  debt that is
expressly  subordinated to the Bank in a writing  acceptable to the Bank, in the
exercise of its reasonable  discretion).

     SECTION 1.02.  ACCOUNTING  TERMS.  All  accounting  terms not  specifically
defined herein shall be construed in accordance  with GAAP consistent with those
applied in the  preparation of the financial  statements  referred to in Section
4.04,  and all financial  data  submitted  pursuant to this  Agreement  shall be
prepared in accordance with such principles.

                                   ARTICLE II

                          AMOUNT AND TERMS OF THE LOANS

     SECTION 2.01. BRIDGE LOAN. The Bank agrees, on the terms and conditions set
forth in this Agreement,  to make a loan (the "Bridge Loan") to the Borrowers on
the Closing Date in a principal amount up to but not exceeding  $3,000,000.  The
Bridge Loan shall have a term of one year from the date of the Bridge Note.  The
Borrowers  shall  have the right at any time and from time to time to prepay the
Bridge Loan in whole or in part  without  premium or penalty  but with  interest
accrued on the amount prepaid to the date of payment.

     SECTION  2.02.  BRIDGE NOTE.  The  obligation of the Borrowers to repay the
Bridge  Loan  shall be  evidenced  by a note  (the  "Bridge  Note")  in the form
attached  hereto as Exhibit B. The Bridge Note interest  shall be payable at the
rate provided herein and pursuant to the terms of this Agreement.

     SECTION  2.03.  INTEREST ON BRIDGE NOTE.  Interest on the Bridge Note shall
accrue at the  greater  of the  floating  National  Prime  Rate or 4.5% prior to
acceleration or maturity,  and 6% in excess of the floating  National Prime Rate
in  effect  from  time  to time  after  maturity,  whether  by  acceleration  or
otherwise.

     SECTION  2.04.  REPAYMENT  OF BRIDGE NOTE.  Interest  only shall be payable
monthly on the Bridge Note.  All  outstanding  principal  and accrued but unpaid
interest shall be payable on the Bridge Loan Termination Date.

     SECTION 2.05.  TERM LOAN. The Bank agrees,  on the terms and conditions set
forth in this  Agreement,  to make a loan (the "Term Loan") to the  Borrowers on
the Closing Date in a principal amount up to but not exceeding  $2,000,000.  The
Term Loan shall have a term of three  years from the date of the Term Note.  The

                                       6

Borrowers  shall  have the right at any time and from time to time to prepay the
Term Loan in whole or in part  without  premium  or  penalty  but with  interest
accrued on the amount prepaid to the date of payment.

     SECTION 2.06.  TERM NOTE. The obligation of the Borrowers to repay the Term
Loan shall be evidenced by a note (the "Term Note") in the form attached  hereto
as Exhibit  C. The Term Note  interest  shall be  payable  at the rate  provided
herein and pursuant to the terms of this Agreement.

     SECTION 2.07. INTEREST ON TERM NOTE. Interest on the Term Note shall accrue
at a variable  rate equal to the greater of the  floating  National  Prime Rate,
plus 50 basis points or 4.5% prior to  acceleration or maturity and 6% in excess
of the floating  National Prime Rate in effect from time to time after maturity,
whether by acceleration or otherwise.

     SECTION  2.08.  REPAYMENT  OF TERM  NOTE.  The Term  Note  shall be due and
payable in full on the third  anniversary  date of the Term Note.  The Term Note
shall be amortized over a five-year  period.  The Borrowers agrees to pay to the
Lender on a monthly basis principal and accrued interest on the Term Note during
the first three  years of the Term Note and shall pay all  amounts of  principal
and accrued  interest which remain on the Term Note on the third  anniversary of
the Term Note.

     SECTION 2.09.  REVOLVING LOAN. The Bank agrees, on the terms and subject to
the  conditions  set forth in this  Agreement,  to lend up to  $5,500,000 to the
Borrowers on the terms and conditions of this Agreement (the "Revolving  Loan").
The Bank will credit  proceeds of the Revolving Loan to the  Borrowers'  deposit
accounts with the Bank, bearing number 26712880,  as requested by the Borrowers.
Subject to the terms hereof, the Bank will lend the Borrowers, from time to time
until the Revolving  Loan  Termination  Date such sums in integral  multiples of
$10,000 as the Borrowers may request by reasonable  same-day notice to the Bank,
received by the Bank not later than 11:00 a.m. of such day,  but which shall not
exceed in the aggregate principal amount at any one time outstanding $5,500,000,
less the  aggregate  amounts  of any issued  and  outstanding  letters of credit
issued by the Bank at the  request of and on the account of the  Borrowers  (the
"Loan Commitment").  The Borrowers may borrow,  repay without penalty or premium
and reborrow hereunder, from the date of this Agreement until the Revolving Loan
Termination  Date,  either the full amount of the Loan  Commitment or any lesser
sum which is $10,000 or an integral multiple thereof. It is the intention of the
parties that the outstanding  balance of the Revolving Loan shall not exceed the
Borrowing  Base as determined in the Borrowing Base  Certificate,  and if at any
time said balance  exceeds the Borrowing Base, the Borrowers shall forthwith pay
the Bank  sufficient  funds to reduce the balance of the Revolving Loan until it
is in compliance with this requirement.

     SECTION 2.10.  REVOLVING  NOTE.  The Revolving Loan shall be evidenced by a
Promissory Note (the  "Revolving  Note") having stated maturity on the Revolving
Loan Termination Date, in the form attached hereto as Exhibit D.

     SECTION 2.11.  INTEREST ON REVOLVING  NOTE.  Interest on the Revolving Note
shall accrue at the greater of the floating National Prime Rate or 4.5% prior to
acceleration or maturity,  and 6% in excess of the floating  National Prime Rate
in  effect  from  time  to time  after  maturity,  whether  by  acceleration  or
otherwise.

                                       7

     SECTION 2.12.  REPAYMENT OF REVOLVING NOTE. The Revolving Note shall be due
and  payable on May 31,  2005.  Interest  only  shall be payable  monthly on the
Revolving Note. All outstanding  principal and interest shall be due and payable
on May 31, 2005.

     SECTION 2.13.  PAYMENTS.  All  principal,  interest and fees due under this
Agreement,  the  Notes  and the  Loan  Documents  shall  be paid in  immediately
available  funds as contracted  in this  Agreement and no later than the payment
due date set forth in the  periodic  statements  mailed to the  Borrowers by the
Bank.  Should a payment  come due on a day other than a Banking Day, the payment
shall be made no later than the next Banking Day and interest  shall continue to
accrue during the extended period.

     SECTION 2.14. FEES AND COST OF LOANS.

          (a) At the Closing,  the Borrowers  shall pay to the Bank a commitment
     fee of $37,500,  which fee the Borrowers  agrees and  acknowledges has been
     earned by the Bank.

          (b) The Borrowers  shall pay all costs  associated with the Closing of
     the Loans, including, but not limited to, title, survey,  environmental and
     appraisal reports, mortgage fees and taxes and the Bank's legal fees.

     SECTION 2.15. USE OF PROCEEDS. The proceeds of the Loans hereunder shall be
used by the  Borrowers  to acquire all of the issued and  outstanding  shares of
Piezo,  to provide a working line of credit to support  accounts  receivable and
inventory  of Piezo after such  acquisition  and to refinance  certain  existing
mortgage and equipment  indebtedness of Piezo. The Borrowers will not,  directly
or  indirectly,  use any part of such  proceeds for the purpose of purchasing or
carrying  any margin  stock  within the meaning of  Regulation U of the Board of
Governors of the Federal  Reserve  System or to extend  credit to any person for
the purpose of purchasing or carrying any such margin stock,  or for any purpose
which  violates,  or  is  inconsistent  with,  Regulation  X of  such  Board  of
Governors.

     SECTION  2.16.  ILLEGALITY.  Notwithstanding  any other  provision  in this
Agreement,  if the Bank  determines that any applicable law, rule or regulation,
or any change therein,  or any change in the  interpretation  or  administration
thereof by any governmental authority, central bank or comparable agency charged
with the  interpretation  or administration  thereof,  or compliance by the Bank
with any  request or  directive  (whether or not having the force of law) of any
such  authority,  central  bank or  comparable  agency shall make it unlawful or
impossible  for the Bank to  maintain  its  commitment,  then upon notice to the
Borrowers by the Bank the  commitment of the Bank shall  terminate.  In no event
shall  interest  payable  hereunder be in excess of the maximum rate of interest
permitted  under  applicable  law. The Borrower  hereby  agrees to give the Bank
written  notice in the event that the  Borrower  has actual  knowledge  that any
interest  payment made to the Bank with respect to any Loan will cause the total
interest  payments  collected in connection with this Note in any one year to be
usurious  under  applicable  law,  and the Bank  hereby  agrees  not to  collect
knowingly any interest from the Borrower in the form of fees or otherwise  which
will render  this Note or the Loans  usurious.  In the event that such  interest
would be usurious in the Bank's  opinion,  the Bank reserves the right to reduce
the  interest  payable  by the  Borrower.  Additionally,  at the  option  of the
Borrowers,  any interest which may have been paid which exceeds the maximum rate

                                       8

permitted by law shall be applied to the  principal or returned to the Borrower.
This  provision  shall survive the closing of this Note and the repayment of the
Loans.

                                  ARTICLE III

                              CONDITIONS OF LENDING

     SECTION 3.01. CONDITIONS PRECEDENT TO ALL LOANS. The obligation of the Bank
to make all Loans to the Borrowers is subject to the  conditions  precedent that
the Bank shall have received on or before the Closing each of the following,  in
form and substance satisfactory to the Bank and its counsel:

          (a) NOTE. Each respective Note duly executed by each of the Borrowers;

          (b) SECURITY AGREEMENT.  A Security Agreement duly executed by each of
     the Borrowers  together with the  Financing  Statements  (Form UCC-1) to be
     duly filed under the Uniform Commercial Code of all jurisdictions necessary
     or, in the opinion of the Bank,  desirable to perfect the security interest
     created by the Security Agreement;

          (c) EVIDENCE OF ALL CORPORATE  ACTION BY  BORROWERS.  Certified (as of
     the date of this Agreement) copies of all corporate action taken by each of
     the  Borrowers,   including  resolutions  of  their  Boards  of  Directors,
     authorizing  the execution,  delivery and performance of the Loan Documents
     to which they are parties and each other  document to be  delivered by them
     pursuant to this Agreement;

          (d) INCUMBENCY AND SIGNATURE  CERTIFICATE OF BORROWERS.  A certificate
     (dated as of the date of this  Agreement) of the Secretaries of each of the
     Borrowers  certifying the names and true  signatures of the officers of the
     Borrowers  authorized to sign the Loan  Documents to which they are parties
     and the  other  documents  to be  delivered  by the  Borrowers  under  this
     Agreement;

          (e) OPINION OF COUNSEL FOR BORROWERS.  A favorable  opinion of counsel
     for each of the Borrowers, in substantially the form of Exhibit E;

          (f) GUARANTY. A Guaranty duly executed by the Guarantor;

          (g) EVIDENCE OF ALL CORPORATE  ACTION BY  GUARANTOR.  Certified (as of
     the date of this  Agreement)  copies of all  corporate  action taken by the
     Guarantor, including resolutions of its Board of Directors, authorizing the
     execution, delivery and performance of the Guaranty;

          (h) INCUMBENCY AND SIGNATURE  CERTIFICATE OF GUARANTOR.  A certificate
     (dated as of the date of this  Agreement) of the Secretary of the Guarantor
     certifying  the names and true  signatures of the officers of the Guarantor
     authorized to sign the Guaranty;

          (i) OPINION OF COUNSEL FOR GUARANTOR.  A favorable  opinion of counsel
     for the Guarantor, in substantially the form of Exhibit F;

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          (j) SUBORDINATED DEBT. Proof, to the reasonable  satisfaction of Bank,
     that Lynch Corporation,  an Indiana corporation,  has advanced an amount of
     at  least  $1,800,000  which at all  times  shall  be  subordinated  to all
     Obligations to the Bank;

          (k) LOCKBOX AGREEMENT. A lockbox agreement duly executed by Piezo in a
     form satisfactory to the Bank; and

          (l)  MORTGAGE.  A mortgage  creating a security  interest  in the real
     property  of Piezo set forth in  Exhibit  A, duly  executed  by each of the
     Borrowers to be duly filed in the appropriate jurisdictions.

          (m)  PATENT   SECURITY   AGREEMENT.   A  patent   security   agreement
     substantially in the form of Exhibit I securing the  intellectual  property
     set forth therein.

          (n) OFFICER'S CERTIFICATE, ETC. The following statements shall be true
     and the Bank shall have received a certificate  signed by a duly authorized
     officer of each of the Borrowers dated the date of the Term Loan and Bridge
     Loan stating that:

               (i) the representations  and warranties  contained in Articles IV
          and V of this Agreement, in the Security Agreement and in the Guaranty
          are  correct on and as of the date of the Term Loan and Bridge Loan as
          though made on and as of such date; and

               (ii)  no  Default  or  Event  of  Default  has  occurred  and  is
          continuing or would result from the Term Loan or Bridge Loan; and

          (o) ADDITIONAL DOCUMENTATION.  The Bank shall have received such other
     approvals, opinions or documents as the Bank may reasonably request.

     SECTION 3.02. CONDITIONS PRECEDENT TO REVOLVING LOAN. The obligation of the
Bank to make  subsequent  advances  under the Revolving Loan shall be subject to
the further conditions precedent that on the date of such Revolving Loan:

          (a) The  following  statements  shall be true and the Bank  shall have
     received a certificate  signed by a duly authorized  officer of each of the
     Borrowers dated the date of such Revolving Loan stating that:

               (i) the  representation  and warranties  contained in Articles IV
          and V of this Agreement, in the Security Agreement and in the Guaranty
          are  correct  on and as of the date of such  Revolving  Loan as though
          made on and as of such date; and

               (ii)  no  Default  or  Event  of  Default  has  occurred  and  is
          continuing, or would result from such loan.

          (b) The Bank shall have received a borrowing  base  certificate in the
     form of Exhibit H (the "Borrowing Base Certificate").

                                       10

          (c) The Bank shall have  received  such other  approvals,  opinions or
     documents as the Bank may reasonably request.

                                   ARTICLE IV

            REPRESENTATIONS AND WARRANTIES OF M-TRON INDUSTRIES, INC.

     To induce the Bank to enter into this Agreement,  M-TRON  Industries,  Inc.
("M-TRON") makes the following representations and warranties:

     SECTION 4.01.  EXISTENCE AND POWER. M-TRON is a corporation duly formed and
in  good  standing  under  the  laws  of  the  State  of  Delaware.  M-TRON  has
accomplished  all  necessary  actions  required  by  a  corporate  entity  under
applicable law to own all  Collateral,  and shares in Piezo,  and to execute and
deliver,  and to perform all of its  obligations  under,  the Loan  Documents to
which it is a party.

     SECTION 4.02.  AUTHORIZATION  OF BORROWING;  NO CONFLICT AS TO LAW OR OTHER
AGREEMENTS.  The  execution,  delivery  and  performance  by  M-TRON of the Loan
Documents  and the  borrowings  from  time  to time  hereunder  have  been  duly
authorized by all necessary  corporate actions of M-TRON and do not and will not
(a)  require  any  material  consent  or  approval,  or  authorization,  by  any
governmental department,  commission,  board, bureau, agency or instrumentality,
domestic or foreign, other than those obtained and in full force and effect, (b)
violate,  in any material respect,  any provision of any law, rule or regulation
or of  any  order,  writ,  injunction  or  decree  presently  in  effect  having
applicability  to  M-TRON,  or  violate  any  provision  of the  Certificate  of
Incorporation  or By-laws of M-TRON,  (c) result in a breach of or  constitute a
default beyond any applicable  cure period under any indenture or loan or credit
agreement or any other material  agreement,  lease or instrument to which M-TRON
is a party or by which it or its  properties  may be bound or  affected,  or (d)
result in, or require,  the  creation or  imposition  of any  mortgage,  deed of
trust,  pledge,  lien,  security  interest or other charge or encumbrance of any
nature to or with any other  creditor  of  M-TRON,  in the  aggregate  exceeding
$100,000,  upon or with respect to any of the  properties now owned or hereafter
acquired by M-TRON.

     SECTION 4.03. LEGAL  AGREEMENTS.  The Loan Documents to which it is a party
constitute  the  legal,  valid and  binding  obligations  of M-TRON  enforceable
against M-TRON in accordance  with their  respective  terms,  and as to the Loan
Documents  to  which  M-TRON  is not a party,  M-TRON  believes  such  documents
constitute  the legal,  valid and binding  obligations  of the parties  thereto,
enforceable  against such parties in  accordance  with their  respective  terms,
except (a) as  limited by  applicable  bankruptcy,  insolvency,  reorganization,
moratorium  and other  laws of  general  application  affecting  enforcement  of
creditors'  rights  generally  and  (b)  as  limited  by  laws  relating  to the
availability  of  specific  performance,  injunctive  relief or other  equitable
remedies.

     SECTION  4.04.  FINANCIAL  CONDITION.  M-TRON has furnished to the Bank its
financial  statements as of December 31, 2003 and for the eight months ending in
August 31, 2004 (the "Financial  Statements").  The Financial  Statements fairly
present the financial condition of M-TRON on the dates thereof and were prepared

                                       11

in  accordance  with  GAAP.  There has been no  material  adverse  change in the
operations, properties or condition (financial or otherwise) of M-TRON since the
date of the Financial Statements, and no additional borrowings have been made by
M-TRON other than the borrowing  contemplated hereby or approved by the Bank. No
certificate  or  statement  furnished  to the Bank by or on  behalf of M-TRON in
connection  with  the  transactions  contemplated  hereby  contains  any  untrue
statement  of a material  fact or omits to state a material  fact  necessary  in
order to make the statements contained therein or herein not misleading.

     SECTION  4.05.  LITIGATION.  There  are no  actions,  suits or  proceedings
pending or, to the knowledge of M-TRON,  threatened  against or affecting M-TRON
or the  properties  of  M-TRON  before  any  court or  governmental  department,
commission,  board,  bureau,  agency or  instrumentality,  domestic  or foreign,
which, if determined adversely to M-TRON, would have a Material Adverse Effect.

     SECTION  4.06.  TAXES.  M-TRON has filed all  federal,  state and local tax
returns  which to the  knowledge of M-TRON are required to be filed,  and M-TRON
has paid or caused to be paid to the respective taxing  authorities all taxes as
shown on said  returns or on any  assessment  received  by it to the extent such
taxes have become due except those which M-TRON is  contesting in good faith and
with respect to which adequate reserves have been set aside.

     SECTION 4.07.  LABOR DISPUTES AND ACTS OF GOD. Neither the business nor the
properties of M-TRON or any  Subsidiary or the Guarantor has been subject to any
fire,  explosion,  accident,  strike,  lockout or other labor dispute,  drought,
storm, hail,  earthquake,  embargo,  act of God or of the public enemy, or other
casualty  (whether or not covered by insurance) having a Material Adverse Effect
on M-TRON or such Subsidiary or the Guarantor.

     SECTION 4.08. OTHER  AGREEMENTS.  Neither M-TRON nor any Subsidiary nor the
Guarantor is a party to any indenture, loan or credit agreement, or to any lease
or other  agreement  or  instrument,  or  subject to any  charter  or  corporate
restriction  which would  reasonably be anticipated  to have a Material  Adverse
Effect on M-TRON or any Subsidiary or the Guarantor, or the ability of M-TRON or
the Guarantor to carry out its obligations  under the Loan Documents to which it
is a party. Neither M-TRON nor any Subsidiary nor the Guarantor is in default in
any  respect  in  the  performance,  observance  or  fulfillment  of  any of the
obligations,  covenants or  conditions  contained in any agreement or instrument
material to its business to which it is a party.

     SECTION 4.09. NO DEFAULT ON OUTSTANDING JUDGMENTS OR ORDERS. M-TRON and its
Subsidiaries and the Guarantor have satisfied all judgments,  and neither M-TRON
nor any Subsidiary nor the Guarantor is in default with respect to any judgment,
writ,  injunction,  decree,  rule or regulation of any court or  arbitrator,  or
federal,  state, municipal or other governmental authority,  commission,  board,
bureau, agency or instrumentality, domestic or foreign.

     SECTION 4.10.  OWNERSHIP AND LIENS.  M-TRON and each  Subsidiary have title
to, or valid  leasehold  interests  in,  all of their  material  properties  and
assets,  real and personal,  including the  properties  and assets and leasehold
interest  reflected  in the  Financial  Statements  referred to in Section  4.04
(other  than any  properties  or assets  disposed of in the  ordinary  course of

                                       12

business),  and  none of the  properties  and  assets  owned  by  M-TRON  or any
Subsidiary and none of their leasehold interests are subject to any Lien, except
such as may be permitted pursuant to Section 7.01 of this Agreement.

     SECTION 4.11.  SUBSIDIARIES  AND OWNERSHIP OF STOCK.  Set forth in Schedule
4.11 is a complete and accurate list of the  Subsidiaries of M-TRON (which shall
include Piezo),  showing the  jurisdiction of  incorporation of each and showing
the  percentage  of  M-TRON's   ownership  of  the  outstanding  stock  of  each
Subsidiary.  All of the  outstanding  capital stock of each such  Subsidiary has
been validly issued, is fully paid and nonassessable and is owned by M-TRON free
and clear of all Liens.

     SECTION 4.12.  ERISA.  M-TRON and each  Subsidiary are in compliance in all
material respects with all applicable  provisions of ERISA. Neither a Reportable
Event nor a Prohibited  Transaction  has occurred and is continuing with respect
to any Plan;  no notice of intent to terminate a Plan has been filed nor has any
Plan been terminated;  no circumstances exist which constitute grounds entitling
the PBGC to  institute  proceedings  to  terminate,  or  appoint  a  trustee  to
administer,  a Plan; nor has the PBGC instituted any such  proceedings;  neither
M-TRON nor any Commonly  Controlled Entity has completely or partially withdrawn
from a Multiemployer  Plan; M-TRON and each Commonly  Controlled Entity have met
their  minimum  funding  requirements  under ERISA with  respect to all of their
Plans and the  present  value of all  vested  benefits  under each Plan does not
exceed the fair market value of all Plan assets  allocable to such benefits,  as
determined on the most recent  valuation date of the Plan and in accordance with
the provisions of ERISA; and neither M-TRON nor any Commonly  Controlled  Entity
has incurred any liability to the PBGC under ERISA.

     SECTION 4.13.  OPERATION OF BUSINESS.  M-TRON and its  Subsidiaries and the
Guarantor  possess  all  licenses,  permits,  franchises,  patents,  copyrights,
trademarks  and trade names,  or rights  thereto,  to conduct  their  respective
businesses  substantially  as now  conducted  and as  presently  proposed  to be
conducted,  and  M-TRON  and  its  Subsidiaries  and  the  Guarantor  are not in
violation of any valid rights of others with respect to any of the foregoing.

     SECTION  4.14.  DEBT.  Schedule  4.14 is a complete and correct list of all
credit agreements,  indentures, purchase agreements,  guaranties, Capital Leases
and other investments, agreements and arrangements presently in effect providing
for or relating to extensions of credit  (including  agreements and arrangements
for the issuance of letters of credit or for acceptance financing) in respect of
which  M-TRON  or any  Subsidiary  is in any  manner  directly  or  contingently
obligated;  the maximum  principal  or face  amounts of the credit in  question,
outstanding or to be  outstanding,  are correctly  stated,  and all Liens of any
nature given or agreed to be given as security therefor are correctly  described
or indicated in such Schedule.

     SECTION 4.15.  ENVIRONMENT.  M-TRON and each  Subsidiary have duly complied
with, and their businesses,  operations, assets, equipment, Property, leaseholds
or other facilities are in compliance with, the provisions of all federal, state
and local environmental,  health and safety laws, codes and ordinances,  and all
rules and  regulations  promulgated  thereunder,  the failure of compliance with
which would  reasonably be anticipated to result in a Material  Adverse  Effect.
M-TRON and each  Subsidiary  have been  issued and will  maintain  all  required
federal, state and local permits, licenses,  certificates and approvals relating
to (a) air emissions; (b) discharges to surface water or groundwater;  (c) noise
emissions; (d) solid or liquid waste disposal; (e) the use, generation, storage,

                                       13

transportation or disposal of toxic or hazardous  substances or wastes (intended
hereby  and  hereafter  to  include  any and all such  materials  listed  in any
federal,  state or local law,  code or ordinance  and all rules and  regulations
promulgated  thereunder  as hazardous or  potentially  hazardous);  or (f) other
environmental,  health or safety matters. A true,  accurate and complete list of
all such permits,  licenses,  certificates  and approvals is attached  hereto as
Schedule 4.15.  Neither  M-TRON nor any  Subsidiary  has received  notice of, or
knows of facts which  constitute any violations of, any federal,  state or local
environmental,  health  or safety  laws,  codes or  ordinances  and any rules or
regulations  promulgated thereunder with respect to its businesses,  operations,
assets,  equipment,   Property,   leaseholds  or  other  facilities.  Except  in
accordance with a valid governmental  permit,  license,  certificate or approval
listed in Schedule 4.15, there has been no emission, spill, release or discharge
into or upon (a) the air; (b) soils, or any improvements  located  thereon;  (c)
surface  water  or  groundwater;  or (d)  the  sewer,  septic  system  or  waste
treatment,  storage or disposal  system  servicing  the premises of any toxic or
hazardous  substances or wastes at or from the premises;  and accordingly except
for inventory of raw  materials,  supplies,  work in progress and finished goods
listed in  Schedule  4.15 that is to be used or sold in the  ordinary  course of
business the premises of M-TRON and its  Subsidiaries are free of all such toxic
or  hazardous  substances  or  wastes.  There  has  been  no  complaint,  order,
directive, claim, citation or notice by any governmental authority or any person
or entity with respect to (a) air emissions;  (b) spills, releases or discharges
to soils or  improvements  located  thereon,  surface water,  groundwater or the
sewer,  septic system or waste treatment,  storage or disposal systems servicing
the premises;  (c) noise emissions;  (d) solid or liquid waste disposal; (e) the
use,  generation,  storage,  transportation  or disposal  of toxic or  hazardous
substances  or waste;  or (f)  other  environmental,  health  or safety  matters
affecting  M-TRON or its  business,  operations,  assets,  equipment,  Property,
leaseholds or other  facilities.  Neither M-TRON nor its  Subsidiaries  have any
indebtedness,  obligation or liability,  absolute or contingent,  matured or not
matured,  with  respect to the  storage,  treatment,  cleanup or disposal of any
solid wastes, hazardous wastes or other toxic or hazardous substances (including
without limitation any such  indebtedness,  obligation or liability with respect
to any current  regulation,  law or statute  regarding such storage,  treatment,
cleanup or disposal)  which is not shown on Schedule 4.15. Set forth in Schedule
4.15  is a list  of all  real  property  owned  or  leased  by  M-TRON  and  its
Subsidiaries at any time since December 31, 1998, wherever located,  and a brief
description of the business conducted at such location.

                                   ARTICLE V

            REPRESENTATIONS AND WARRANTIES OF PIEZO TECHNOLOGY, INC.

     To induce the Bank to enter into this  Agreement,  Piezo  Technology,  Inc.
("Piezo") makes the following representations and warranties:

     SECTION 5.01.  EXISTENCE AND POWER.  Piezo is a corporation duly formed and
in good standing under the laws of the State of Florida.  Piezo has accomplished
all necessary actions required by a corporate entity under applicable law to own
the Property and Collateral,  and to execute and deliver,  and to perform all of
its obligations under, the Loan Documents to which it is a party.

                                       14

     SECTION 5.02.  AUTHORIZATION  OF BORROWING;  NO CONFLICT AS TO LAW OR OTHER
AGREEMENTS.  The  execution,  delivery  and  performance  by  Piezo  of the Loan
Documents  and the  borrowings  from  time  to time  hereunder  have  been  duly
authorized by all necessary  corporate  actions of Piezo and do not and will not
(a)  require  any  material  consent  or  approval,  or  authorization,  by  any
governmental department,  commission,  board, bureau, agency or instrumentality,
domestic or foreign, other than those obtained and in full force and effect, (b)
violate,  in any material respect,  any provision of any law, rule or regulation
or of  any  order,  writ,  injunction  or  decree  presently  in  effect  having
applicability   to  Piezo,   or  violate  any   provision  of  the  Articles  of
Incorporation  or By-laws of Piezo,  (c) result in a breach of or  constitute  a
default beyond any applicable  cure period under any indenture or loan or credit
agreement or any other material agreement, lease or instrument to which Piezo is
a party or by which it or its properties may be bound or affected, or (d) result
in, or require,  the  creation or  imposition  of any  mortgage,  deed of trust,
pledge,  lien, security interest or other charge or encumbrance of any nature to
or with any other creditor of Piezo, in the aggregate exceeding  $100,000,  upon
or with  respect to any of the  properties  now owned or  hereafter  acquired by
Piezo.

     SECTION 5.03. LEGAL  AGREEMENTS.  The Loan Documents to which it is a party
constitute the legal, valid and binding obligations of Piezo enforceable against
Piezo in accordance with their respective terms, and as to the Loan Documents to
which Piezo is not a party, Piezo believes such documents  constitute the legal,
valid and binding  obligations of the parties thereto,  enforceable against such
parties in  accordance  with their  respective  terms,  except (a) as limited by
applicable bankruptcy, insolvency, reorganization,  moratorium and other laws of
general application affecting enforcement of creditors' rights generally and (b)
as  limited  by laws  relating  to the  availability  of  specific  performance,
injunctive relief or other equitable remedies.

     SECTION  5.04.  FINANCIAL  CONDITION.  Piezo has  furnished to the Bank its
financial  statements  as of September 30, 2003 and for the eleven months ending
on August 28, 2004 (the "Financial Statements"). The Financial Statements fairly
present the financial  condition of Piezo on the dates thereof and were prepared
in accordance with GAAP. Except as set forth in Schedule 5.04, there has been no
material adverse change in the operations, properties or condition (financial or
otherwise)  of  Piezo  since  the  date  of  the  Financial  Statements,  and no
additional  borrowings  have  been  made  by  Piezo  other  than  the  borrowing
contemplated  hereby  or  approved  by the Bank.  No  certificate  or  statement
furnished  to  the  Bank  by or on  behalf  of  Piezo  in  connection  with  the
transactions  contemplated  hereby  contains any untrue  statement of a material
fact or omits to state a material fact necessary in order to make the statements
contained therein or herein not misleading.

     SECTION  5.05.  LITIGATION.  There  are no  actions,  suits or  proceedings
pending or, to the knowledge of Piezo,  threatened against or affecting Piezo or
the properties of Piezo before any court or governmental department, commission,
board,  bureau,  agency or  instrumentality,  domestic  or  foreign,  which,  if
determined adversely to Piezo, would have a Material Adverse Effect.

     SECTION  5.06.  TAXES.  Piezo has filed  all  federal,  state and local tax
returns which to the knowledge of Piezo are required to be filed,  and Piezo has
paid or  caused to be paid to the  respective  taxing  authorities  all taxes as

                                       15

shown on said  returns or on any  assessment  received  by it to the extent such
taxes have become due except those which Piezo is  contesting  in good faith and
with respect to which adequate reserves have been set aside.

     SECTION 5.07.  LABOR DISPUTES AND ACTS OF GOD. Neither the business nor the
properties of Piezo or any Subsidiary have been subject to any fire,  explosion,
accident,  strike,  lockout  or  other  labor  dispute,  drought,  storm,  hail,
earthquake,  embargo,  act of God or of the  public  enemy,  or  other  casualty
(whether or not covered by insurance), having a Material Adverse Effect on Piezo
or such Subsidiary.

     SECTION 5.08. OTHER AGREEMENTS. Neither Piezo nor any Subsidiary is a party
to any indenture,  loan or credit agreement,  or to any lease or other agreement
or  instrument,  or subject to any charter or corporate  restriction  that would
reasonably  be  anticipated  to have a Material  Adverse  Effect on Piezo or any
Subsidiary,  or the ability of Piezo to carry out its obligations under the Loan
Documents to which it is a party. Neither Piezo nor any Subsidiary is in default
in any  respect in the  performance,  observance  or  fulfillment  of any of the
obligations,  covenants or  conditions  contained in any agreement or instrument
material to its business to which it is a party.

     SECTION 5.09. NO DEFAULT ON OUTSTANDING  JUDGMENTS OR ORDERS. Piezo and its
Subsidiaries have satisfied all judgments,  and neither Piezo nor any Subsidiary
is in default with respect to any judgment,  writ,  injunction,  decree, rule or
regulation of any court or  arbitrator,  or federal,  state,  municipal or other
governmental  authority,  commission,  board, bureau, agency or instrumentality,
domestic or foreign.

     SECTION 5.10. OWNERSHIP AND LIENS. Piezo and each Subsidiary have title to,
or valid  leasehold  interests in, all of their material  properties and assets,
real and personal,  including the properties  and assets and leasehold  interest
reflected in the  Financial  Statements  referred to in Section 5.04 (other than
any properties or assets  disposed of in the ordinary  course of business),  and
none of the  properties  and assets owned by Piezo or any Subsidiary and none of
their  leasehold  interests  are  subject  to any  Lien,  except  such as may be
permitted pursuant to Section 7.11 of this Agreement.

     SECTION 5.11.  SUBSIDIARIES  AND OWNERSHIP OF STOCK.  Set forth in Schedule
5.11 is a complete and accurate list of the  Subsidiaries  of Piezo (which shall
include Piezo),  showing the  jurisdiction of  incorporation of each and showing
the percentage of Piezo's ownership of the outstanding stock of each Subsidiary.
All of the  outstanding  capital stock of each such  Subsidiary has been validly
issued,  is fully paid and nonassessable and is owned by Piezo free and clear of
all Liens.

     SECTION 5.12.  ERISA.  Except as set forth in Schedule 5.12, Piezo and each
Subsidiary  are in  compliance  in all  material  respects  with all  applicable
provisions of ERISA. Neither a Reportable Event nor a Prohibited Transaction has
occurred  and is  continuing  with  respect to any Plan;  no notice of intent to
terminate  a  Plan  has  been  filed  nor  has  any  Plan  been  terminated;  no
circumstances  exist which  constitute  grounds  entitling the PBGC to institute
proceedings to terminate,  or appoint a trustee to  administer,  a Plan; nor has
the PBGC  instituted  any  such  proceedings;  neither  Piezo  nor any  Commonly

                                       16

Controlled  Entity has completely or partially  withdrawn  from a  Multiemployer
Plan; Piezo and each Commonly  Controlled  Entity have met their minimum funding
requirements  under  ERISA with  respect to all of their  Plans and the  present
value of all vested  benefits  under  each Plan does not exceed the fair  market
value of all Plan assets  allocable to such benefits,  as determined on the most
recent  valuation  date of the Plan and in  accordance  with the  provisions  of
ERISA;  and neither  Piezo nor any Commonly  Controlled  Entity has incurred any
liability to the PBGC under ERISA.

     SECTION 5.13. OPERATION OF BUSINESS. Piezo and its Subsidiaries possess all
licenses, permits, franchises, patents, copyrights,  trademarks and trade names,
or rights thereto, to conduct their respective  businesses  substantially as now
conducted  and  as  presently  proposed  to be  conducted,  and  Piezo  and  its
Subsidiaries  are not in violation of any valid rights of others with respect to
any of the foregoing.

     SECTION  5.14.  DEBT.  Schedule  5.14 is a complete and correct list of all
credit agreements,  indentures, purchase agreements,  guaranties, Capital Leases
and other investments, agreements and arrangements presently in effect providing
for or relating to extensions of credit  (including  agreements and arrangements
for the issuance of letters of credit or for acceptance financing) in respect of
which  Piezo  or  any  Subsidiary  is in any  manner  directly  or  contingently
obligated;  the maximum  principal  or face  amounts of the credit in  question,
outstanding or to be  outstanding,  are correctly  stated,  and all Liens of any
nature given or agreed to be given as security therefor are correctly  described
or indicated in such Schedule.

     SECTION 5.15.  ENVIRONMENT.  Piezo and each  Subsidiary  have duly complied
with, and their businesses,  operations, assets, equipment, Property, leaseholds
or other facilities are in compliance with, the provisions of all federal, state
and local environmental,  health and safety laws, codes and ordinances,  and all
rules and  regulations  promulgated  thereunder,  the failure of compliance with
which would  reasonably be anticipated to result in a Material  Adverse  Effect.
Piezo and each  Subsidiary  have been  issued  and will  maintain  all  required
federal, state and local permits, licenses,  certificates and approvals relating
to (a) air emissions; (b) discharges to surface water or groundwater;  (c) noise
emissions; (d) solid or liquid waste disposal; (e) the use, generation, storage,
transportation or disposal of toxic or hazardous  substances or wastes (intended
hereby  and  hereafter  to  include  any and all such  materials  listed  in any
federal,  state or local law,  code or ordinance  and all rules and  regulations
promulgated  thereunder  as hazardous or  potentially  hazardous);  or (f) other
environmental,  health or safety matters. A true,  accurate and complete list of
all such permits,  licenses,  certificates  and approvals is attached  hereto as
Schedule 5.15. Neither Piezo nor any Subsidiary has received notice of, or knows
of facts  which  constitute  any  violations  of,  any  federal,  state or local
environmental,  health  or safety  laws,  codes or  ordinances  and any rules or
regulations  promulgated thereunder with respect to its businesses,  operations,
assets,  equipment,   Property,   leaseholds  or  other  facilities.  Except  in
accordance with a valid governmental  permit,  license,  certificate or approval
listed in Schedule 5.15, there has been no emission, spill, release or discharge
into or upon (a) the air; (b) soils, or any improvements  located  thereon;  (c)
surface  water  or  groundwater;  or (d)  the  sewer,  septic  system  or  waste
treatment,  storage or disposal  system  servicing  the premises of any toxic or
hazardous  substances or wastes at or from the premises;  and accordingly except
for inventory of raw  materials,  supplies,  work in progress and finished goods
listed in  Schedule  5.15 that is to be used or sold in the  ordinary  course of
business the premises of Piezo and its  Subsidiaries  are free of all such toxic
or  hazardous  substances  or  wastes.  There  has  been  no  complaint,  order,

                                       17

directive, claim, citation or notice by any governmental authority or any person
or entity with respect to (a) air emissions;  (b) spills, releases or discharges
to soils or  improvements  located  thereon,  surface water,  groundwater or the
sewer,  septic system or waste treatment,  storage or disposal systems servicing
the premises;  (c) noise emissions;  (d) solid or liquid waste disposal; (e) the
use,  generation,  storage,  transportation  or disposal  of toxic or  hazardous
substances  or waste;  or (f)  other  environmental,  health  or safety  matters
affecting  Piezo  or its  business,  operations,  assets,  equipment,  Property,
leaseholds  or other  facilities.  Neither Piezo nor its  Subsidiaries  have any
indebtedness,  obligation or liability,  absolute or contingent,  matured or not
matured,  with  respect to the  storage,  treatment,  cleanup or disposal of any
solid wastes, hazardous wastes or other toxic or hazardous substances (including
without limitation any such  indebtedness,  obligation or liability with respect
to any current  regulation,  law or statute  regarding such storage,  treatment,
cleanup or disposal)  which is not shown on Schedule 5.15. Set forth in Schedule
5.15  is a list  of  all  real  property  owned  or  leased  by  Piezo  and  its
Subsidiaries at any time since December 31, 1998, wherever located,  and a brief
description of the business conducted at such location.

                                   ARTICLE VI

                              AFFIRMATIVE COVENANTS

     So long as any  Note  shall  remain  unpaid  or the  Bank  shall  have  any
Commitment under this Agreement, the Borrowers will:

     SECTION 6.01.  MAINTENANCE OF EXISTENCE.  Preserve and maintain,  and cause
each  Subsidiary  to preserve and  maintain,  its  corporate  existence and good
standing  in the  jurisdiction  of its  incorporation,  and  qualify  and remain
qualified,  and cause each  Subsidiary  to qualify  and remain  qualified,  as a
foreign  corporation  in  each  jurisdiction  in  which  such  qualification  is
required.

     SECTION 6.02.  MAINTENANCE OF RECORDS.  Keep, and cause each  Subsidiary to
keep,  adequate records and books of account,  in which complete entries will be
made in accordance  with GAAP  consistently  applied,  reflecting  all financial
transactions of the Borrowers and its Subsidiaries.

     SECTION 6.03. MAINTENANCE AND PROPERTIES.  Maintain, keep and preserve, and
cause each  Subsidiary  to maintain,  keep and preserve,  all of its  properties
(tangible  and  intangible)  necessary  or useful in the  proper  conduct of its
business in good working order and condition, ordinary wear and tear excepted.

     SECTION 6.04. CONDUCT OF BUSINESS.  Continue,  and cause each Subsidiary to
continue, to operate its business in the ordinary course.

     SECTION 6.05. MAINTENANCE OF INSURANCE. Maintain, and cause each Subsidiary
to maintain,  insurance with financially sound and reputable insurance companies
or  associations  in such amounts and covering such risks as are usually carried
by companies  engaged in the same or a similar business and similarly  situated,
which insurance may provide for reasonable deductibility from coverage thereof.

                                       18

     SECTION 6.06.  COMPLIANCE WITH LAWS.  Comply,  and cause each Subsidiary to
comply, in all respects with all applicable laws, rules, regulations and orders,
the failure of compliance  with which would  reasonably be anticipated to result
in a Material Adverse Effect.

     SECTION 6.07. RIGHT OF INSPECTION.  At any reasonable time and from time to
time,  upon  reasonable  advance  notice,  permit  the  Bank  or  any  agent  or
representative  thereof to examine  and make  copies of and  abstracts  from the
records and books of account of, and visit the  properties of, the Borrowers and
any  Subsidiary,  and to discuss  the  affairs,  finances  and  accounts  of the
Borrowers and any Subsidiary with any of their respective officers and directors
and the Borrowers' independent accountants.

     SECTION 6.08. REPORTING REQUIREMENTS. Furnish to the Bank:

          (a) MONTHLY  FINANCIAL  STATEMENTS.  As soon as  available  and in any
     event  within  25  days  after  the  end of each  month,  consolidated  and
     consolidating  balance sheets of the Borrowers and their Subsidiaries as of
     the end of such  quarter,  consolidated  and  consolidating  statements  of
     income,  retained  earnings,  aging  of  all  accounts  receivables  and  a
     Borrowing  Base  Certificate  (in a  form  approved  by  the  Bank)  of the
     Borrowers and their  Subsidiaries  for the period  commencing at the end of
     the previous month and ending with the end of such month,  and consolidated
     and  consolidating  statements  of cash flows for the portion of the fiscal
     year ended with the last day of such month,  all in  reasonable  detail and
     stating in comparative  form the respective  figures for the  corresponding
     date and period in the previous  fiscal year and all prepared in accordance
     with GAAP consistently applied and certified by the chief financial officer
     of the Borrowers (subject to year-end adjustments);

          (b) ANNUAL FINANCIAL STATEMENTS. As soon as available and in any event
     within  120  days  after  the end of  each  fiscal  year of the  Borrowers,
     consolidated  and  consolidating  balance sheets of the Borrowers and their
     Subsidiaries  as of the end of  such  fiscal  year,  and  consolidated  and
     consolidating  statements of income and retained  earnings of the Borrowers
     and  their   Subsidiaries  for  such  fiscal  year,  and  consolidated  and
     consolidating  statements  of changes in cash  flows of the  Borrowers  and
     their  Subsidiaries  for such fiscal  year,  all in  reasonable  detail and
     stating in comparative  form the respective  figures for the  corresponding
     date and period in the prior  fiscal year and all  prepared  in  accordance
     with  GAAP  consistently  applied  and  as to the  consolidated  statements
     accompanied  by an opinion  thereon  acceptable to the Bank by  independent
     accountants of recognized standing selected by the Borrowers and acceptable
     to the Bank;

          (c) MANAGEMENT LETTERS.  Promptly upon receipt thereof,  copies of any
     reports  submitted  to the  Borrowers  or  any  Subsidiary  by  independent
     certified  public   accountants  in  connection  with  examination  of  the
     financial  statements  of the  Borrowers  or any  Subsidiary  made  by such
     accountants;

          (d)  CERTIFICATE  OF NO DEFAULT.  Within 25 days after the end of each
     month of each  fiscal year of the  Borrowers,  a  certificate  of the chief
     financial  officer of the Borrowers (i) certifying  that to the best of his

                                       19

     knowledge no Default or Event of Default has occurred and is continuing or,
     if a  Default  or  Event or  Default  has  occurred  and is  continuing,  a
     statement  as to the nature  thereof and the action which is proposed to be
     taken  with  respect  thereto;  and (ii)  with  computations  demonstrating
     compliance with the covenants contained in Article VII;

          (e)  ACCOUNTANTS'  REPORT.  Simultaneously  with the  delivery  of the
     annual financial  statements  referred to in Section 6.08(b), a certificate
     of the  independent  public  accountants who audited such statements to the
     effect  that,  in making the  examination  necessary  for the audit of such
     statements, they have obtained no knowledge of any condition or event which
     constitutes  a Default or Event of Default  or, if such  accountants  shall
     have obtained knowledge of any such condition or event,  specifying in such
     certificate  each such  condition or event of which they have knowledge and
     the nature or status thereof;

          (f) NOTICE OF  LITIGATION.  Promptly after the  commencement  thereof,
     notice  of  all  actions,   suits  and  proceedings  before  any  court  or
     governmental   department,    commission,    board,   bureau,   agency   or
     instrumentality,  domestic  or  foreign,  affecting  the  Borrowers  or any
     Subsidiary  which,  if  determined  adversely  to  the  Borrowers  or  such
     Subsidiary,  would  reasonably be  anticipated  to have a Material  Adverse
     Effect;

          (g) NOTICE OF DEFAULTS AND EVENTS OF DEFAULT.  As soon as  practicable
     and in any event within five days after the  occurrence  of each Default or
     Event of  Default,  a written  notice  setting  forth the  details  of such
     Default or Event of Default and the action which is proposed to be taken by
     the Borrowers with respect thereto;

          (h) ERISA REPORTS. As soon as practicable,  and in any event within 30
     days after the Borrowers know or have reason to know that any circumstances
     exist that constitute  grounds entitling the PBGC to institute  proceedings
     to terminate a Plan  subject to ERISA with respect to the  Borrowers or any
     Commonly  Controlled  Entity,  and  promptly  but in any event  within  two
     Business Days of receipt by the Borrowers or any Commonly Controlled Entity
     of notice that the PBGC intends to terminate a Plan or appoint a trustee to
     administer  the same,  and promptly  but in any event within five  Business
     Days of the  receipt of notice  concerning  the  imposition  of  withdrawal
     liability with respect to the Borrowers or any Commonly  Controlled Entity,
     the Borrowers will deliver to the Bank a certificate of the chief financial
     officer of the Borrowers  setting forth all relevant details and the action
     which the Borrowers proposes to take with respect thereto;

          (i) REPORTS TO OTHER CREDITORS. Promptly after the furnishing thereof,
     copies of any  statement or report  furnished to any party  pursuant to the
     terms of any indenture, loan, credit or similar agreement and not otherwise
     required to be furnished  to the Bank  pursuant to any other clause of this
     Section 6.08;

          (j)  PROXY  STATEMENTS,  ETC.  Promptly  after the  sending  or filing
     thereof,  copies of all proxy statements,  financial statements and reports
     which the  Borrowers or any  Subsidiary  sends to their  stockholders,  and
     copies of all regular,  periodic and special reports,  and all registration

                                       20

     statements  which the Borrowers or any Subsidiary files with the Securities
     and  Exchange  Commission  or  any  governmental  authority  which  may  be
     substituted therefor, or with any national securities exchange; and

          (k)  GENERAL  INFORMATION.   Such  other  information  respecting  the
     condition or  operations,  financial or otherwise,  of the Borrowers or any
     Subsidiary as the Bank may from time to time reasonably request.

     SECTION 6.09.  ENVIRONMENT.  Be and remain, and cause each Subsidiary to be
and remain,  in compliance  with the provisions of all federal,  state and local
environmental,  health and safety laws, codes and ordinances,  and all rules and
regulations  issued  thereunder,  the  failure of  compliance  with which  would
reasonably be anticipated  to result in a Material  Adverse  Effect;  notify the
Bank  immediately  of any  notice  of a  hazardous  discharge  or  environmental
complaint received from any governmental  agency or any other party;  notify the
Bank  immediately  of any  hazardous  discharge  from or affecting its premises;
immediately contain and remove the same, in compliance with all applicable laws;
promptly pay any fine or penalty  assessed in connection  therewith;  permit the
Bank to inspect the premises, to conduct tests thereon and to inspect all books,
correspondence and records pertaining thereto; and at the Bank's request, and at
the Borrowers' expense,  provide a report of a qualified environmental engineer,
satisfactory in scope,  form and content to the Bank, and such other and further
assurances  reasonably  satisfactory  to the Bank  that the  condition  has been
corrected.

                                  ARTICLE VII

                               NEGATIVE COVENANTS

     So long as any  Note  shall  remain  unpaid  or the  Bank  shall  have  any
Commitment  under this  Agreement,  the Borrowers will not,  without the written
consent of the Bank, in the Bank's sole discretion:

     SECTION 7.01. LIENS.  Create,  incur,  assume or suffer to exist, or permit
any Subsidiary to create,  incur,  assume or suffer to exist,  any Lien, upon or
with respect to any of its properties, now owned or hereafter acquired, except:

          (a) Liens in favor of the Bank;

          (b) Liens for taxes or  assessments  or other  government  charges  or
     levies if not yet due and payable or, if due and payable, if they are being
     contested  in  good  faith  by  appropriate   proceedings   and  for  which
     appropriate reserves are maintained;

          (c)  Liens  imposed  by  law,  such  as   mechanics',   materialmen's,
     landlords',  warehousemen's  and carriers'  Liens, and other similar Liens,
     securing  obligations incurred in the ordinary course of business which are
     not past due for more  than 60 days or which are  being  contested  in good
     faith by appropriate  proceedings and for which  appropriate  reserves have
     been established;

          (d) Liens under workers' compensation,  unemployment insurance, Social
     Security or similar legislation;

                                       21

          (e) Liens,  deposits  or pledges  to secure the  performance  of bids,
     tenders,  contracts (other than contracts for the payment of money), leases
     (permitted  under  the  terms  of  this  Agreement),  public  or  statutory
     obligations,  surety, stay, appeal, indemnity, performance or other similar
     bonds,  or other  similar  obligations  arising in the  ordinary  course of
     business;

          (f) Judgment and other similar Liens arising in connection  with court
     proceedings,  provided the execution or other  enforcement of such Liens is
     effectively  stayed  and the  claims  secured  thereby  are being  actively
     contested in good faith and by appropriate proceedings;

          (g)   Easements,   rights-of-way,   restrictions   and  other  similar
     encumbrances which, in the aggregate,  do not materially interfere with the
     occupation,  use and  enjoyment by the  Borrowers or any  Subsidiary of the
     Property or assets encumbered  thereby in the normal course of its business
     or materially impair the value of the Property subject thereto;

          (h) Liens  securing  obligations  of a Subsidiary  to the Borrowers or
     another Subsidiary;

          (i)  Purchase-money  Liens on any property  hereafter  acquired or the
     assumption of any Lien on Property existing at the time of such acquisition
     (and not created in contemplation of such acquisition),  or a Lien incurred
     in connection with any conditional sale or other title retention  agreement
     or a Capital Lease, provided that:

               (i) any property  subject to any of the  foregoing is acquired by
          the  Borrowers  or  any  Subsidiary  in  the  ordinary  course  of its
          respective business and the Lien on any such property attaches to such
          asset concurrently or within 90 days after the acquisition thereof;

               (ii) the  obligation  secured by any Lien so created,  assumed or
          existing  shall not  exceed  90% of the lesser of the cost or the fair
          market value as of the time of  acquisition  of the  property  covered
          thereby to the Borrowers or Subsidiary acquiring the same;

               (iii)  each  such  Lien  shall  attach  only to the  property  so
          acquired and fixed improvements thereon;

               (iv) the Debt secured by all such Liens shall not exceed $100,000
          at any time outstanding in the aggregate; and

               (v) the Debt secured by such Lien is permitted by the  provisions
          of Section 7.02, and the related  expenditure  is permitted  under the
          terms of this Agreement; and

          (j) As to  Borrower  M-Tron,  Liens  existing  on the date  hereof and
     identified in Schedule 7.01.

                                       22

     SECTION 7.02. DEBT. Create, incur, assume or suffer to exist, or permit any
Subsidiary to create, incur, assume or suffer to exist, any Debt, except:

          (a) Debt of the Borrowers under this Agreement or the Note;

          (b) Debt described in Schedule 7.02(b),  but no voluntary  prepayment,
     renewals, extensions or refinancing thereof;

          (c) Debt of the Borrowers  subordinated  on terms  satisfactory to the
     Bank to the Borrowers' obligations under this Agreement and the Note;

          (d) Debt of the Borrowers to any  Subsidiary  or of any  Subsidiary to
     the Borrowers or another Subsidiary;

          (e) Accounts  payable to trade  creditors for goods or services  which
     are not aged more than 90 days from the billing date and current  operating
     liabilities (other than for borrowed money) which are not more than 90 days
     past due, in each case  incurred in the  ordinary  course of  business,  as
     presently  conducted,  and paid within the specified time, unless contested
     in good faith and by appropriate proceedings;

          (f) Debt in respect of letters of credit issued for the account of the
     Borrowers or any Subsidiary in an aggregate  outstanding face amount at any
     time of up to $100,000;

          (g) Debt incurred in connection  with  acceptances of the Borrowers or
     any Subsidiary in an aggregate amount  outstanding at any one time of up to
     $50,000; and

          (h) Debt of the Borrowers or any Subsidiary  secured by purchase-money
     Liens permitted by Section 7.02.

          (i) Debt  existing  on the date  hereof  and  identified  in  Schedule
     7.02(i).

     SECTION  7.03.  MERGERS,  ETC.  Wind  up,  liquidate  or  dissolve  itself,
reorganize,  merge  or  consolidate  with or  into,  or  convey,  sell,  assign,
transfer,  lease or  otherwise  dispose of (whether in one  transaction  or in a
series of  transactions)  all or  substantially  all of its assets  (whether now
owned or hereafter  acquired) to any person, or acquire all or substantially all
of the assets or the business of any person,  or permit any Subsidiary to do so,
except  that  (a) any  Subsidiary  may  merge  into or  transfer  assets  to the
Borrowers and (b) any Subsidiary may merge into or consolidate  with or transfer
assets to any other  Subsidiary.  Notwithstanding  the foregoing,  the Borrowers
shall be permitted,  at any time,  to sell the Property  which is the subject of
the  mortgage  referred to in Section  3.01(l) so long as (a) the sales price of
such  Property  is  equal  to or  greater  than the  amount  of the  outstanding
principal  and  interest of the Bridge Loan at the time of such sale and (b) the
proceeds of the sale are immediately applied to the Bridge Loan.

     SECTION 7.04. LEASES.  Create,  incur, assume or suffer to exist, or permit
any Subsidiary to create,  incur,  assume or suffer to exist,  any obligation as
lessee  for the  rental or hire of any real or  personal  property,  except  (a)
Capital Leases permitted by Section 7.01(i);  (b) leases existing on the date of
this  Agreement and any extensions or renewals  thereof;  (c) leases (other than

                                       23

Capital  Leases) which do not in the  aggregate  require the Borrowers and their
Subsidiaries  on  a  consolidated  basis  to  make  payments  (including  taxes,
insurance,   maintenance  and  similar  expenses  which  the  Borrowers  or  any
Subsidiary  is  required to pay under the terms of any lease) in any fiscal year
of the Borrowers in excess of $50,000;  and (d) leases between the Borrowers and
any Subsidiary or between any Subsidiaries.

     SECTION 7.05. SALE AND LEASEBACK.  Sell,  transfer or otherwise dispose of,
or permit any Subsidiary to sell,  transfer or otherwise dispose of, any real or
personal property to any person and thereafter directly or indirectly lease back
the same or similar property. Notwithstanding the foregoing, the Borrowers shall
be  permitted,  at any time, to sell the Property so long as (a) the sales price
of such  Property  is equal to or  greater  than the  amount of the  outstanding
principal  and  interest of the Bridge Loan at the time of such sale and (b) the
proceeds of the sale are immediately applied to the Bridge Loan .

     SECTION  7.06.  DIVIDENDS.  As to  Borrower  M-TRON,  declare  or  pay  any
dividends in excess of fifty percent (50%) of M-TRON's prior year earnings,  but
only so long as M-TRON is in compliance  with all other terms of this Agreement;
or purchase,  redeem,  retire or otherwise  acquire for value any of its capital
stock now or hereafter  outstanding;  or make any  distribution of assets to its
stockholders as such whether in cash, assets or obligations of the Borrowers; or
allocate  or  otherwise  set apart any sum for the  payment of any  dividend  or
distribution on, or for the purchase, redemption or retirement of any shares of,
its capital  stock;  or make any other  distribution  by reduction of capital or
otherwise  in respect of any shares of its capital  stock;  or permit any of its
Subsidiaries  to  purchase  or  otherwise  acquire  for  value  any stock of the
Borrowers or another  Subsidiary,  except that the Borrowers (a) may declare and
deliver dividends and make  distributions  payable solely in common stock of the
Borrowers; and (b) may purchase or otherwise acquire shares of its capital stock
by exchange for or out of the proceeds received from a substantially  concurrent
issue of new shares of its capital stock.

     SECTION 7.07. SALE OF ASSETS.  Sell, lease,  assign,  transfer or otherwise
dispose  of, or permit  any  Subsidiary  to sell,  lease,  assign,  transfer  or
otherwise dispose of, any of its owned or hereafter  acquired assets (including,
without   limitation,   shares  of  stock  and   indebtedness  of  Subsidiaries,
receivables and leasehold  interests),  except (a) inventory  disposed of in the
ordinary  course of  business;  (b) the sale or other  disposition  of assets no
longer  used  or  useful  in the  conduct  of its  business;  and (c)  that  any
Subsidiary  may sell,  lease,  assign or  otherwise  transfer  its assets to the
Borrowers.

     SECTION 7.08. INVESTMENTS. Make, or permit any Subsidiary to make, any loan
or advance to any  person,  or  purchase  or  otherwise  acquire,  or permit any
Subsidiary  to  purchase  or  otherwise  acquire,  any  capital  stock,  assets,
obligations  or other  securities  of,  make any  capital  contribution  to,  or
otherwise invest in or acquire any interest in, any person,  or participate as a
partner or joint venture with any other person, except (a) direct obligations of
the United States or any agency thereof with maturities of one year or less from
the date of  acquisition;  (b)  commercial  paper of a domestic  issuer rated at
least  "A-1" by  Standard & Poor's  Corporation  or "P-1" by  Moody's  Investors
Service,  Inc.; (c)  certificates of deposit with maturities of one year or less
from the date of acquisition  issued by any  commercial  bank having capital and
surplus in excess of $50,000,000;  (d) stock, obligations or securities received
in settlement of debts (created in the ordinary course of business) owing to the
Borrowers  or any  Subsidiary;  and (e)  loans  and  advances  to  employees  of

                                       24

Borrowers  in respect of  business-related  expenses  incurred  in the  ordinary
course  of  business  and for such  employees  to  purchase  computer  and other
equipment in an aggregate amount not exceeding $50,000.

     SECTION 7.09. GUARANTIES, ETC. Assume, guaranty, endorse or otherwise be or
become directly or contingently  responsible or liable, or permit any Subsidiary
to assume, guaranty,  endorse or otherwise be or become directly or contingently
responsible or liable  (including,  but not limited to, an agreement to purchase
any obligation,  stock, assets,  goods or services,  or to supply or advance any
funds,  assets,  goods or  services,  or an  agreement to maintain or cause such
person to  maintain a minimum  working  capital  or  Tangible  Net Worth,  or to
otherwise  assure the creditors of any person against loss),  for obligations of
any person,  except  guaranties by  endorsement  of negotiable  instruments  for
deposit  or  collection  or  similar  transactions  in the  ordinary  course  of
business.

     SECTION 7.10.  TRANSACTIONS  WITH  AFFILIATES.  Enter into any transaction,
including, without limitation, the purchase, sale or exchange of property or the
rendering of any service, with any Affiliate,  or permit any Subsidiary to enter
into any  transaction,  including,  without  limitation,  the purchase,  sale or
exchange of property or the rendering of any service, with any Affiliate, except
in the ordinary  course of and pursuant to the  reasonable  requirements  of the
Borrowers' or such  Subsidiary's  business and upon fair and reasonable terms no
less  favorable  to the  Borrowers  or such  Subsidiary  than would  obtain in a
comparable arm's-length transaction with a person not an Affiliate.

     SECTION 7.11. INTEREST PAYMENTS ON LYNCH CORPORATION  SUBORDINATED DEBT. As
to Borrower M-TRON,  pay any interest on any Subordinated Debt owed by M-TRON to
Lynch Corporation, an Indiana corporation,  unless (a) the Borrowers are in full
compliance  with the terms of this  Agreement  and (b) such amount to be paid as
interest  on such  Subordinated  Debt does not,  in any year,  exceed  the total
amount of 5% of the then outstanding principal of such obligation.

     SECTION 7.12. PAYMENT OF OTHER INDEBTEDNESS IN THE EVENT OF DEFAULT. In the
event that Borrowers are in Default under the terms of this  Agreement,  pay any
Indebtedness  to any party other than the Bank,  until such time as such default
has been cured.

                                  ARTICLE VIII

                               FINANCIAL COVENANTS

     So long as any  Note  shall  remain  unpaid  or the  Bank  shall  have  any
Commitment under this Agreement, Borrower M-TRON agrees to fully comply with the
following:

     SECTION 8.01. MINIMUM WORKING CAPITAL. The Borrower M-TRON will maintain at
all times an excess of current assets over current  liabilities of not less than
$950,000.

     SECTION 8.02. MINIMUM TANGIBLE NET WORTH. The Borrower M-TRON will maintain
at all times a tangible net worth of not less than $4,200,000.

     SECTION 8.03. CAPITAL  EXPENDITURES.  The Borrower M-TRON will not make any
expenditures  for fixed or capital assets if, after giving effect  thereto,  the

                                       25

aggregate of all such  expenditures  made by the Borrowers would exceed $850,000
during any fiscal year of the Borrowers.

     SECTION 8.04. CURRENT RATIO. For the period beginning with the date of this
Agreement through March 31, 2005, the Borrower M-TRON will maintain at all times
a ratio of current assets to current liabilities of not less than 1 to 1. At all
times after March 31, 2005, the Borrower will maintain a ratio of current assets
to current liabilities of not less than 1.1 to 1.

     SECTION  8.05.  LEVERAGE  RATIO.  The Borrower  M-TRON will maintain at all
times a ratio of total liabilities (excluding Subordinated Debt in an amount not
exceeding $2,500,000) to tangible net worth of not greater than 4 to 1.

     SECTION 8.06. FIXED CHARGE COVERAGE RATIO.  Beginning on December 31, 2004,
the Borrower  M-TRON will  maintain a Fixed Charge  Coverage  Ratio of 1.2 to 1,
tested at the end of each calendar quarter. The parties acknowledge and agree at
such time that the Bridge Loan  becomes due and payable that the maturity of the
principal  balance of the Bridge Loan shall not in and of itself cause a default
under this section.

                                   ARTICLE IX

                     EVENTS OF DEFAULT, RIGHTS AND REMEDIES

     SECTION 9.01. EVENTS OF DEFAULT. Each of the following shall be an Event of
Default  and give  the  Bank the  right to  exercise  its  remedies  under  this
Agreement:

          (a) the Borrowers shall fail to pay when due, or within a 5 day period
     thereafter,  any  Obligations  or any other  installment  of  principal  or
     interest or fee payable to the Bank;

          (b) the  Borrowers  shall  fail to  timely,  or within a 15 day period
     thereafter, provide reports to the Bank as provided in Article VI;

          (c)  the  Borrowers  shall  fail  to  observe  or  perform  any  other
     obligation  to be observed or performed by it hereunder or under any of the
     Loan Documents. Upon Borrower's knowledge of any such failure, the Borrower
     shall  immediately  notify the Bank of the same and the Borrower shall cure
     such failure within 15 days  thereafter.  Without  creating or imposing any
     obligation or duty on the Bank to inquire,  investigate or monitor,  in the
     event that the Bank becomes aware of any such failure to observe or perform
     any  obligation to be observed or performed by the  Borrowers  hereunder or
     under any Loan  Document,  the Bank  shall  notify  the  Borrowers  of such
     failure and the Borrower shall cure such failure within 15 days thereafter.
     The  failure of the  Borrower  to so cure such  failure  within such 15 day
     period shall  constitute  an Event of Default  under this  Subsection.  The
     Parties  agree  that the delay of the Bank to so notify  the  Borrowers  as
     provided in this Subsection  shall not constitute a waiver of any provision
     of this Agreement but shall only require that the Bank notify the Borrowers
     and the  Borrowers  be granted  such right to cure such  failure  with such
     period prior to the exercise of the Banks rights pursuant to this Section;

                                       26

          (d) the Borrowers  shall fail to pay any  Indebtedness in an aggregate
     principal  amount in  excess of  $100,000  due any third  persons  and such
     failure shall continue beyond any applicable grace period, or the Borrowers
     shall default under any material  agreement  binding the Borrowers and such
     default shall continue beyond any applicable grace period;

          (e) any financial statement,  representation,  warranty or certificate
     made or  furnished  by or with  respect  to the  Borrowers  to the  Bank in
     connection  with this  Agreement,  or as an inducement to the Bank to enter
     into  this  Agreement,  or in any  separate  statement  or  document  to be
     delivered to the Bank hereunder,  shall be materially  false,  incorrect or
     incomplete when made;

          (f) either Borrower shall admit its inability to pay its debts as they
     mature or shall make an assignment  for the benefit of themselves or any of
     their creditors;

          (g) proceedings in bankruptcy, or for reorganization of the Borrowers,
     or for the readjustment of debt under the Bankruptcy  Code, as amended,  or
     any part thereof,  or under any other laws,  whether state or federal,  for
     the  relief of  debtors,  now or  hereafter  existing,  shall be  commenced
     against  or  by  the  Borrowers  and,  except  with  respect  to  any  such
     proceedings instituted by the Borrowers,  shall not be discharged or stayed
     within 60 days of their commencement;

          (h) a receiver or trustee  shall be appointed for the Borrowers or for
     any substantial part of its respective  assets, or any proceedings shall be
     instituted for the  dissolution  or the full or partial  liquidation of the
     Borrowers,  and except with respect to any such  appointments  requested or
     instituted  by  the  Borrowers  such  receiver  or  trustee  shall  not  be
     discharged  within 60 days of his  appointment,  and except with respect to
     any such proceedings instituted by the Borrowers such proceedings shall not
     be discharged within 60 days of their commencement,  or the Borrowers shall
     discontinue business or materially change the nature of its business;

          (i) the  Borrowers  shall suffer final  judgments for payment of money
     aggregating  in  excess  of  $100,000   which  are  not  covered,   without
     reservation,  by insurance and shall not discharge the same within a period
     of 30 days unless,  pending  further  proceedings,  execution  has not been
     commenced or, if commenced, has been effectively stayed; or

          (j) the letter  agreement  between  Lynch  Corporation,  the parent of
     M-TRON,  and the Bank dated  October 18, 2002  ceasing to be  effective  or
     enforceable,

          (k) Lynch Corporation,  the parent of M-TRON shall, at any time have a
     Tangible Net Worth of less than $7,500,000,

          (l) a judgment  creditor of the Borrowers  shall obtain  possession of
     any of the Bank's  Collateral  by any  means,  including  (without  implied
     limitation) levy, distraint, replevin or self-help.

                                       27

     SECTION  9.02.  RIGHTS  AND  REMEDIES.  If an Event of  Default  shall have
occurred  and be  continuing,  the Bank may  refrain  from  making  any  further
disbursements   hereunder  (but  the  Bank  may  make  disbursements  after  the
occurrence of such an Event of Default  without  thereby  waiving its rights and
remedies  hereunder),  and the Bank  may  exercise  any or all of the  following
rights and remedies:

          (a) the Bank may exercise  and enforce its rights and  remedies  under
     any or all of the Loan Documents;

          (b) the Bank may enter upon the Property,  if allowed under applicable
     law, and take possession thereof; or

          (c) The Bank may exercise  any other rights and remedies  available to
     it by law or agreement.

                                   ARTICLE X

                                  MISCELLANEOUS

     SECTION 10.01. NO WAIVER;  CUMULATIVE REMEDIES.  No failure or delay on the
part of the Bank in  exercising  any  right,  power  or  remedy  under  the Loan
Documents  shall  operate  as a waiver  thereof  nor shall any single or partial
exercise  of any such  right,  power or remedy  preclude  any  other or  further
exercise  thereof or the exercise of any other right,  power or remedy under the
Loan Documents.  The remedies  provided in the Loan Documents are cumulative and
not exclusive of any remedies provided by law.

     SECTION 10.02. AMENDMENTS, ETC. No amendment, modification,  termination or
waiver of any provision of any of the Loan Documents or consent to any departure
by the  Borrowers  therefrom  shall be  effective  unless  the same  shall be in
writing  and  signed  by the Bank and the  Borrowers,  and then  such  waiver or
consent  shall be effective  only in the specific  instance and for the specific
purpose for which  given.  No notice to or demand on the  Borrowers  in any case
shall entitle the Borrowers to any other or further  notice or demand in similar
or other circumstances.

     SECTION 10.03.  ADDRESSES FOR NOTICES,  ETC. Except as otherwise  expressly
provided  herein,  all  notices,  requests,  demands  and  other  communications
provided  for under the Loan  Documents  shall be in writing and sent by mail or
telecopy (if by telecopy  with a  confirmation  mailed  within two Business Days
thereafter), to the applicable party at its address indicated below:

      If to Borrower M-TRON:         M-TRON Industries, Inc.
                                     c/o Lynch Corporation
                                     Suite 1250
                                     50 Kennedy Plaza
                                     Providence, RI  02903
                                     Attention:  Chief Executive Officer
                                     Facsimile:  (401) 543-2009

                                       28

      with a copy to:                Olshan Grundman Frome Rosenzweig &
                                       Wolosky LLP
                                     Park Avenue Tower
                                     65 East 55th Street
                                     New York, NY  10022
                                     Attention:  David J. Adler
                                     Facsimile:  (212) 451-2222

      If to Borrower Piezo:          Piezo Technology, Inc.
                                     c/o Lynch Corporation
                                     Suite 1250
                                     50 Kennedy Plaza
                                     Providence, RI  02903
                                     Attention:  Chief Executive Officer
                                     Facsimile:  (401) 543-2009

      with a copy to:                Olshan Grundman Frome Rosenzweig &
                                       Wolosky LLP
                                     Park Avenue Tower
                                     65 East 55th Street
                                     New York, NY  10022
                                     Attention:  David J. Adler
                                     Facsimile:  (212) 451-2222

      If to the Bank:                First National Bank of Omaha
                                     1620 Dodge Street STOP 4250
                                     Omaha, NE  68197-4250
                                     Facsimile:  402-498-5119
                                     Attention:  Mark K. McMillan

or, as to each party, at such other address as shall be designated by such party
in a written  notice to the other party  complying as to delivery with the terms
of this Section. All such notices,  requests,  demands and other communications,
when  mailed,  shall be  effective  when  deposited  in the mails,  addressed as
aforesaid, or, when telecopied,  shall be effective when confirmation of receipt
is received,  except that notices or requests to the Bank pursuant to any of the
provisions hereunder shall not be effective until received by the Bank.

     SECTION 10.04.  TIME OF ESSENCE.  Time is of the essence in the performance
of this Agreement.

     SECTION  10.05.  EXECUTION  IN  COUNTERPARTS.  The  Loan  Documents  may be
executed  in any  number of  counterparts,  each of which when so  executed  and
delivered  shall be deemed to be an original  and all of which  counterparts  of
each instrument or agreement,  taken together,  shall constitute but one and the
same instrument.

     SECTION 10.06. BINDING EFFECT, ASSIGNMENT. The Loan Documents to which they
are parties  shall be binding upon and inure to the benefit of the Borrowers and

                                       29

the Bank and their respective successors and assigns,  except that the Borrowers
shall not have the right to assign its rights thereunder or any interest therein
without the prior written consent of the Bank.

     SECTION 10.07.  GOVERNING LAW; CHOICE OF FORUM. The Loan Documents,  to the
extent they do not  otherwise  provide,  shall be governed by, and  construed in
accordance  with,  the laws of the State of New York,  without  giving effect to
that body of law  relating  to choice of laws.  The parties  agree that,  in the
event any action is commenced by any party, the sole venue for such action shall
be in the Douglas County  District Court for the State of Nebraska or the United
States District Court for the District of Nebraska.

     SECTION 10.08. SEVERABILITY OF PROVISIONS.  Any provision of this Agreement
which is prohibited or unenforceable  shall be ineffective to the extent of such
prohibition or unenforceability  without  invalidating the remaining  provisions
hereof.

     SECTION 10.09.  HEADINGS.  Section  headings in this Agreement are included
herein for convenience of reference only and shall not constitute a part of this
Agreement for any other purpose.

     SECTION  10.10.  INTEGRATION.  Except  with  regard  to the  existing  loan
agreement  and the  note  related  thereto  as note  number  2000001751-6,  this
Agreement   supersedes,   replaces  and   terminates   any  prior  oral  offers,
negotiations, understandings or agreements and any commitment letters or similar
writings relating to any of the matters contemplated herein.

     SECTION 10.11.  COSTS,  EXPENSES AND TAXES.  The Borrowers agrees to pay on
demand  all costs  and  expenses  incurred  by the Bank in  connection  with the
preparation,   execution,  delivery,  filing  and  administration  of  the  Loan
Documents,  and  of any  amendment,  modification  or  supplement  to  the  Loan
Documents, including, without limitation, the fees and out-of-pocket expenses of
counsel for the Bank,  incurred in  connection  with advising the Bank as to its
rights and responsibilities  hereunder. The Borrowers also agree to pay all such
costs  and  expenses,   including  court  costs,  incurred  in  connection  with
enforcement of the Loan Documents, or any amendment,  modification or supplement
thereto,  whether by negotiation,  legal proceedings or otherwise.  In addition,
the  Borrowers  shall pay any and all stamp and other taxes and fees  payable or
determined to be payable in connection with the execution,  delivery, filing and
recording of any of the Loan  Documents and the other  documents to be delivered
under any such Loan  Documents,  and agrees to hold the Bank  harmless  from and
against any and all liabilities  with respect to any delay in paying or omission
to pay such taxes and fees.  This  provision  shall survive  termination of this
Agreement.

     SECTION 10.12. INDEMNITY.  The Borrowers hereby agrees to defend, indemnify
and  hold the  Bank  harmless  from and  against  any and all  claims,  damages,
judgments,  penalties,  costs and expenses  (including  attorney  fees and court
costs now or hereafter  arising from the aforesaid  enforcement  of this clause)
arising  directly or  indirectly  from the  activities  of the Borrowers and its
Subsidiaries,  its  predecessors in interest or third parties with whom it has a
contractual  relationship,  or arising directly or indirectly from the violation
of any environmental  protection,  health or safety law, whether such claims are
asserted by any  governmental  agency or any other person.  This indemnity shall
survive termination of this Agreement.

                                       30

     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
executed by their respective officers thereunto duly authorized,  as of the date
first above written.

                                        M-TRON INDUSTRIES, INC., a Delaware
                                        corporation

                                        By    /s/ David L. Rein
                                            ------------------------------
                                        Name  David L. Rein
                                        Title Vice President

                                        PIEZO TECHNOLOGY, INC., a Florida
                                        corporation

                                        By    /s/ David L. Rein
                                            ------------------------------
                                        Name  David L. Rein
                                        Title Vice President

                                        FIRST NATIONAL BANK OF OMAHA

                                        By  /s/ Mark McMillan
                                            ------------------------------
                                        Name  Mark McMillan
                                        Title Vice President

STATE OF SOUTH DAKOTA        )
                             ) ss.
COUNTY OF YANKTON            )

     On this 14th day of October,  2004,  before me, the  undersigned,  a Notary
Public,  personally  appeared  DAVID L. REIN,  on behalf of said  entity as VICE
PRESIDENT of M-TRON Industries, Inc. , a Delaware corporation,  who executed the
foregoing  instrument,  and  acknowledged  that  he  executed  the  same  as his
voluntary act and deed, as well as that of the corporation.

                                         /s/ Leann Sejnola
                                         -----------------------------------
                                         Notary Public

                                       31

STATE OF SOUTH DAKOTA        )
                             ) ss.
COUNTY OF YANKTON            )

     On this 14th day of October,  2004,  before me, the  undersigned,  a Notary
Public,  personally  appeared  DAVID L. REIN,  on behalf of said  entity as VICE
PRESIDENT of Piezo  Technology,  Inc., a Florida  corporation,  who executed the
foregoing  instrument,  and  acknowledged  that  he  executed  the  same  as his
voluntary act and deed, as well as that of the corporation.

                                         /s/ Leann Sejnola
                                         -----------------------------------
                                         Notary Public

                                       32sec document

                             UNCONDITIONAL GUARANTY

                           OF PAYMENT AND PERFORMANCE

     THIS UNCONDITIONAL GUARANTY OF PAYMENT AND PERFORMANCE (this "Guaranty") is
made as of October  14,  2004,  by LYNCH  CORPORATION,  an  Indiana  corporation
("Guarantor"),  for the  benefit  of FIRST  NATIONAL  BANK OF OMAHA,  a national
banking association ("Lender").

     1. For valuable consideration, the receipt of which is hereby acknowledged,
Guarantor unconditionally, absolutely and irrevocably guarantees and promises to
pay to Lender,  or order, any and all amounts,  including,  without  limitation,
principal and interest,  taxes,  insurance premiums,  impounds,  reimbursements,
late charges,  default interest,  damages,  indemnity  obligations and all other
amounts, costs, fees, expenses and charges of any kind or type whatsoever, which
may or at  any  time  be due to  Lender  pursuant  to the  following  agreements
(collectively, the "Documents"):

          A. Loan Agreement (the "Loan Agreement"), dated as of the date hereof,
     between  Lender and M-Tron  Industries,  Inc., a Delaware  corporation  and
     Piezo  Technology,  Inc.,  a  Florida  corporation  jointly  and  severally
     (collectively the "Borrowers") pertaining to that certain loan (the "Loan")
     secured by Borrowers'  interest in certain land  described  therein and the
     improvements to be constructed thereon (the "Premises");

          B. Promissory Note, dated as of the date hereof, executed by Borrowers
     and payable to Lender,  in the amount of $2,000,000.00  evidencing the Term
     Loan, (as defined in the Loan Agreement)  between Borrowers and Lender (the
     "Term Note");

          C. Promissory Note, dated as of the date hereof, executed by Borrowers
     and  payable to  Lender,  in the amount of  $3,000,000.00,  evidencing  the
     Bridge  Loan,  (as defined in the Loan  Agreement)  between  Borrowers  and
     Lender (the "Bridge Note");

          D. Promissory Note, dated as of the date hereof, executed by Borrowers
     and  payable to  Lender,  in the amount of  $5,500,000.00,  evidencing  the
     Revolving  Loan, (as defined in the Loan Agreement)  between  Borrowers and
     Lender (the "Revolving Note")(the Term Note, Bridge Note and Revolving Note
     are collectively referred to as the "Notes")

          E. Mortgage,  Assignment of Rents and Leases,  Security  Agreement and
     Fixture Filing (the "Mortgage"),  dated as of the date hereof,  executed by
     Borrowers  for the benefit of Lender,  providing  a lien upon and  security
     interest in the Premises as security for the Notes;

          F.  Environmental  Indemnity  Agreement,  dated as of the date hereof,
     executed by Borrowers for the benefit of Lender;

          G.  Any  other   document,   agreement,   instrument  or   certificate
     contemplated by any of the foregoing agreements entered into between Lender
     and Borrowers with respect to the Loan, or any other documents, agreements,
     instruments or  certificates  now or hereafter  entered into between Lender
     and Borrowers with respect to the Loan; and

          H. Any amendment of the foregoing documents,  agreements,  instruments
     or certificates now or hereafter entered into between Lender and Borrowers.

     2. Guarantor also unconditionally  guarantees the truthfulness and accuracy
of  all  representations,   warranties  and  certifications  of  Borrowers,  the
satisfaction of all conditions by Borrowers and the full and timely  performance
of all  obligations  to be  performed  by  Borrowers,  under or  pursuant to the
Documents  (the matters  which are  guaranteed  pursuant to Sections 1 and 2 are
hereinafter collectively referred to as the "Obligations").  This Guaranty shall

continue to be in full force and effect so long as any Obligation remains unpaid
between the Borrowers and the Lender.  The  obligations of Guarantor  under this
Guaranty are primary,  joint and several and  independent of the  obligations of
Borrowers and any and every other guarantor of the  Obligations,  and a separate
action or actions may be brought and  executed  against  Guarantor  or any other
such guarantor,  whether or not such action is brought against  Borrowers or any
other such guarantor and whether or not Borrowers or any other such guarantor be
joined in such action or actions.

     3.  This  is  an  absolute  and  unconditional   guaranty  of  payment  and
performance and not of collection and Guarantor  unconditionally  (a) waives any
requirement  that Lender first make demand  upon,  or seek to enforce or exhaust
remedies  against,  Borrowers or any other person or entity (including any other
guarantor)  or any of the  collateral  or  property of  Borrowers  or such other
person or entity  before  demanding  payment  from,  or seeking to enforce  this
Guaranty  against,  Guarantor;  (b)  waives and agrees not to assert any and all
rights,  benefits and  defenses  which might  otherwise  be available  under any
provisions of law,  statute or rule  (including any statutes or rules  amending,
supplementing or supplanting same) which might operate,  contrary to Guarantor's
agreements  in this  Guaranty,  to limit  Guarantor's  liability  under,  or the
enforcement  of,  this  Guaranty;  (c)  waives  the  benefits  of any  statutory
provision limiting the right of Lender to recover a deficiency judgement,  or to
otherwise proceed, against any person or entity obligated for the payment of the
Obligations,  after any foreclosure or trustee's sale of any collateral securing
payment of the  Obligations,  (d)  subject to  Section  2,  covenants  that this
Guaranty  will  not  be  discharged  until  all  of the  Obligations  are  fully
satisfied; and (e) agrees that this Guaranty shall remain in full effect without
regard  to,  and  shall  not  be  affected  or  impaired  by,  any   invalidity,
irregularity or unenforceability in whole or in part of any of the Documents, or
any  limitation  of the liability of Borrowers or Guarantor  thereunder,  or any
limitation  on the  method  or  terms of  payment  thereunder  which  may now or
hereafter be caused or imposed in any manner whatsoever.

     4.  This  Guaranty  is  a  continuing   guaranty,   and  the   obligations,
undertakings  and conditions to be performed or observed by Guarantor under this
Guaranty  shall not be affected or impaired by reason of the happening from time
to time of the following with respect to the  Documents,  all without notice to,
or the further consent of, Guarantor: (a) the waiver by Lender of the observance
or   performance   by  Borrowers  or  Guarantor  of  any  of  the   obligations,
undertakings,  conditions or other provisions contained in any of the Documents,
except to the extent of such waiver; (b) the extension,  in whole or in part, of
the time for payment of any amount owing or payable under the Documents; (c) the
modification  or  amendment  (whether  material  or  otherwise)  of  any  of the
obligations  of  Borrowers  under,  or  any  other  provisions  of,  any  of the
Documents,  except to the  extent of such  modification  or  amendment;  (d) the
taking or the omission of any of the actions referred to in any of the Documents
(including,  without limitation, the giving of any consent referred to therein);
(e) any  failure,  omission,  delay or lack on the part of  Lender  to  enforce,
assert or exercise any provision of the Documents, including any right, power or
remedy  conferred on Lender in any of the Documents or any action on the part of
Lender  granting  indulgence or extension in any form;  (f) the assignment to or
assumption  by any third  party of any or all of the  rights or  obligations  of
Borrowers  under all or any of the  Documents;  (g) the release or  discharge of
Borrowers from the performance or observance of any  obligation,  undertaking or
condition to be performed by Borrowers  under any of the  Documents by operation
of law,  including any rejection or disaffirmance of any of the Documents in any
bankruptcy or similar  proceedings;  (h) the receipt and acceptance by Lender or
any other person or entity of notes, checks or other instruments for the payment
of money and  extensions  and  renewals  thereof;  (i) any  action,  inaction or
election of remedies by Lender which results in any impairment or destruction of
any  subrogation  rights of  Guarantor,  or any rights of  Guarantor  to proceed
against any other person or entity for reimbursement;  (j) any setoff,  defense,
counterclaim, abatement, recoupment, reduction, change in law or any other event
or circumstance which might otherwise  constitute a legal or equitable discharge
or defense of a guarantor,  indemnitor  or surety under the laws of the State of
Nebraska,  the state in which the Premises is located or any other jurisdiction;
and (k) the  termination  or  renewal  of any of the  Obligations  or any  other
provision thereof.

     5.  Guarantor  represents  and  warrants  to Lender  that:  (a) neither the
execution nor delivery of this Guaranty nor  fulfillment of nor compliance  with
the terms and provisions hereof will conflict with, or result in a breach of the
terms or  conditions  of,  or  constitute  a default  under,  any  agreement  or
instrument to which Guarantor is now a party or by which Guarantor may be bound,
or result in the creation of any lien,  charge or encumbrance  upon any property
or assets  of  Guarantor,  which  conflict,  breach,  default,  lien,  charge or
encumbrance could result in a material adverse change in the financial condition
of Guarantor; (b) no further consents,  approvals or authorizations are required
for the execution and delivery of this Guaranty by Guarantor or for  Guarantor's
compliance with the terms and provisions of this Guaranty;  (c) this Guaranty is

                                       2

the legal,  valid and binding agreement of Guarantor and is enforceable  against
Guarantor in accordance  with its terms,  except as such  enforceability  may be
limited by applicable bankruptcy,  insolvency,  liquidation,  reorganization and
other laws  affecting  the rights of creditors  generally and subject to general
principles of equity; (d) Guarantor has the full power, authority,  capacity and
legal right to execute and deliver this Guaranty,  and, to the extent  Guarantor
is a  corporation,  partnership,  limited  liability  company  or other  form of
entity,  the parties  executing  this  Guaranty on behalf of Guarantor are fully
authorized and directed to execute the same to bind Guarantor;  (e) Guarantor is
not  a  "foreign  individual,"  "foreign  corporation,"  "foreign  partnership,"
"foreign limited  liability  company",  "foreign trust," or "foreign estate," as
those terms are defined in the U.S.  Internal  Revenue Code and the  regulations
promulgated  thereunder;  Guarantor's  Social  Security  Number or  Federal  Tax
Identification  Number is  accurately  set forth herein next to the signature of
Guarantor; Guarantor has delivered to Lender either audited financial statements
or, if Guarantor does not have audited financial statements, certified financial
statements;   such  financial  statements  and  other  information  relating  to
Guarantor  heretofore  delivered to Lender are true, correct and complete in all
material  respects as of the date of this Guaranty;  Guarantor  understands that
Lender is relying upon such  information,  and  Guarantor  represents  that such
reliance is reasonable;  and the financial  statements of Guarantor delivered by
Borrowers  to  Lender  pursuant  to the Loan  Agreement  have been  prepared  in
accordance with generally accepted accounting  principles  consistently  applied
and accurately reflect, as of the date of this Guaranty, the financial condition
of Guarantor; (f) during the term of this Guaranty,  Guarantor will not transfer
or  dispose  of any  material  part of its  assets  except  for  full  and  fair
consideration and reasonably  equivalent value;  furthermore,  at the request of
Lender, Guarantor will furnish Lender annually,  within one hundred twenty (120)
days after the close of each calendar year, a financial statement  consisting of
a balance sheet and such other  financial  information  as Lender may reasonably
request; and (g) the Documents are conclusively  presumed to have been signed in
reliance on this Guaranty,  and the  assumption by Guarantor of its  obligations
under this Guaranty results in direct financial benefit to Guarantor.

     6. Subject to Section 2 above,  this Guaranty shall commence upon execution
and delivery of any of the Documents and shall continue in full force and effect
until all of the Obligations are duly,  finally and permanently paid,  performed
and  discharged  and are not subject to any right of reborrowing or extension by
Borrowers,  and  Lender  gives  Guarantor  written  notice of the full and final
satisfaction of the Obligations.  The Obligations  shall not be considered fully
paid,  performed  and  discharged  unless and until all payments by Borrowers to
Lender are no longer subject to any right on the part of any person  whomsoever,
including  but not limited to  Borrowers,  Borrowers  as a  debtor-in-possession
and/or any trustee in  bankruptcy,  to disgorge  such payments or seek to recoup
the amount of such payments or any part thereof.  This Guaranty  shall remain in
full force and effect and  continue  to be  effective  in the event that (i) any
petition  is filed by or against  Borrowers  or  Guarantor  for  liquidation  or
reorganization,  including,  without  limitation,  under  Title 11 of the United
States  Code,  11 U.S.C.  Sec.  101 et seq.  (the  "Code"),  (ii)  Borrowers  or
Guarantor  becomes insolvent or makes an assignment for the benefit of creditors
or (iii) a receiver or trustee is appointed for all or any  significant  part of
Borrowers' or Guarantor's  assets.  This Guaranty shall continue to be effective
or be reinstated,  as applicable,  if at any time payment and performance of the
Obligations,  or any part thereof,  is, pursuant to applicable law, rescinded or
reduced in amount, or must otherwise be restored or returned by Lender,  whether
as a "voidable preference",  "fraudulent conveyance" or otherwise, all as though
such payment or performance  had not been made. In the event that any payment of
the  Obligations,  or any part  thereof,  is  rescinded,  reduced,  restored  or
returned,  the  Obligations  shall be reinstated and deemed reduced only by such
amount paid to Lender and not so rescinded, reduced, restored or returned.

     7.  Guarantor  shall  neither have any right of  subrogation,  indemnity or
reimbursement  nor hold any other claim against  Borrowers,  and Guarantor  does
hereby  release  Borrowers from any and all claims by Guarantor now or hereafter
arising against Borrowers.  Furthermore,  Guarantor hereby  unconditionally  and
irrevocably waives (a) any right to participate in any security now or hereafter
held by Lender or in any claim or remedy of Lender or any other  person  against
Borrowers  with  respect to the  Obligations,  (b) any  statute  of  limitations
affecting Guarantor's liability hereunder,  (c) all principles and provisions of
law  which  conflict  with  the  terms  of  this  Guaranty  and  (d)  diligence,
presentment,  protest, demand for performance, notice of nonperformance,  notice
of intent to accelerate,  notice of acceleration,  notice of protest,  notice of
dishonor,  notice of execution of any Documents,  notice of extension,  renewal,
alteration  or  amendment,  notice of  acceptance  of this  Guaranty,  notice of
defaults under any of the Documents and all other notices whatsoever.

     8.  Notwithstanding  the preceding  Section 7, in the event that  Guarantor
shall have any claims against  Borrowers,  any  indebtedness of Borrowers now or

                                       3

hereafter  held by  Guarantor  is hereby  subordinated  to the  indebtedness  of
Borrowers to Lender. Any such indebtedness of Borrowers to Guarantor,  if Lender
so requests,  shall be collected,  enforced and received by Guarantor as trustee
for Lender and be paid over to Lender on account of the Obligations, but without
reducing or affecting in any manner the  liability of Guarantor  under the other
provisions of this Guaranty.

     9. It is not  necessary  for Lender to inquire into the powers of Borrowers
or its  officers,  directors,  partners or agents acting or purporting to act on
its behalf, and Guarantor shall be liable for the Obligations in accordance with
their terms  notwithstanding any lack of authorization or defect in execution or
delivery by Borrowers.

     10. In addition to the amounts  guaranteed  under this Guaranty,  Guarantor
agrees  to pay (i)  Lender's  reasonable  attorneys'  fees and  other  costs and
expenses which may be incurred by Lender in the enforcement of this Guaranty and
(ii) interest (including postpetition interest to the extent a petition is filed
by or against  Borrowers  under the Code) at the Default Rate (as defined in the
Note) on any Obligations not paid when due. Guarantor hereby agrees to indemnify
and hold harmless Lender for, from and against any loss, cause of action, claim,
cost,  expense or fee,  including but not limited to  attorney's  fees and court
costs,  suffered  or  occasioned  by the  failure of  Borrowers  to satisfy  its
obligations under the Documents.  The agreement to indemnify Lender contained in
this  paragraph   shall  be  enforceable   notwithstanding   the  invalidity  or
unenforceability  of  the  Documents  or  any  of  them  or  the  invalidity  or
unenforceability of any other paragraph  contained in this Guaranty.  All moneys
available to Lender for  application in payment or reduction of the  liabilities
of  Borrowers  under the  Documents  may be applied by Lender to the  payment or
reduction of such liabilities of Borrowers,  in such manner, in such amounts and
at such time or times as Lender may elect.

     11.  All  notices,  demands,   requests,   consents,   approvals  or  other
instruments required or permitted to be given pursuant to this Guaranty shall be
in  writing  and  given by (i) hand  delivery,  (ii)  facsimile,  (iii)  express
overnight  delivery service or (iv) certified or registered mail, return receipt
requested,  and shall be deemed to have been delivered upon (a) receipt, if hand
delivered,  (b) transmission,  if delivered by facsimile,  (c) the next Business
Day (as  defined in the Loan  Agreement),  if  delivered  by  express  overnight
delivery  service or (d) the third  Business Day following the day of deposit of
such notice with the United  States  Postal  Service,  if sent by  certified  or
registered  mail,  return  receipt  requested.  Notices shall be provided to the
addresses (or facsimile numbers, as applicable) specified below:

         If to Guarantor:              Lynch Corporation
                                       50 Kennedy Plaza, Suite 1250
                                       Providence, Rhode Island  02903
                                       Attention: Chief Executive Officer
                                       Telecopy:    (401) 453-2009

         If to Lender:                 First National Bank of Omaha
                                       1620 Dodge Street STOP 4250
                                       Omaha, NE 68197-4250
                                       Attention:  Mark K. McMillan
                                       Telecopy:   (402) 498-5119

or to such other address or such other person as either  Guarantor or Lender may
from time to time hereafter  specify to the other party in a notice delivered in
the manner provided above.

     12. It is the intent of Guarantor  and Lender that this  Guaranty  shall be
deemed to be a contract  made under and  governed  by the  internal  laws of the
State of New York,  without  regard to its  principles  of conflicts of law. For
purposes of any action or proceeding involving this Guaranty,  Guarantor submits
to the  jurisdiction  of all  federal and state  courts  located in the State of
Nebraska  and  consents  that it may be  served  with  any  process  or paper by
registered  mail or by personal  service within or without the State of Nebraska
in accordance with applicable law. Furthermore,  Guarantor waives and agrees not
to assert  in any such  action,  suit or  proceeding  that it is not  personally
subject to the jurisdiction of such courts,  that the action, suit or proceeding
is  brought  in an  inconvenient  forum  or that  venue of the  action,  suit or

                                       4

proceeding  is  improper.  Nothing  contained  in this  section  shall  limit or
restrict the right of Lender to commence any  proceeding in the federal or state
courts  located  in the state in which the  Premises  is  located  and/or  where
Guarantor  resides  to the extent  Lender  deems such  proceeding  necessary  or
advisable to exercise remedies available under the Documents.

     13.  Guarantor  intends  that the  business  relationship  created  between
Borrowers and Lender by the Loan Agreement, the Note, the Mortgage and the other
Documents is solely that of creditor and  Borrowers and has been entered into by
such parties in reliance upon the economic and legal  bargains  contained in the
Documents.  Furthermore,  Guarantor  shall  support  the  intent  of  Guarantor,
Borrowers  and Lender that the Loan,  the Note and the  Mortgage do not create a
joint venture,  partnership,  trust, trust agreement or the like, if, and to the
extent that, any challenge occurs, and Guarantor shall not assert that the Loan,
the Note or the Mortgage  creates a joint  venture,  partnership,  trust,  trust
agreement or the like.

     14.  Guarantor  acknowledges  that  Lender did not prepare or assist in the
preparation  of any of the  projected  financial  figures  used by  Borrowers in
analyzing  the  economic   viability  and   feasibility   of  the   transactions
contemplated by the Loan Agreement.  Furthermore,  Guarantor  acknowledges  that
Borrowers  has not relied  upon,  nor may it hereafter  rely upon,  the analysis
undertaken  by  Lender  in  determining  the  amount  of the Loan and that  such
analysis will not be made available to Borrowers.

     15.  All of  Lender's  rights and  remedies  under the  Documents  and this
Guaranty are intended to be distinct,  separate and cumulative and no such right
and remedy is intended to be in  exclusion  of or a waiver of any of the others.
If under  applicable law, Lender proceeds to realize benefits under any Document
granting Lender a lien upon any collateral  pledged under such Document,  either
by judicial  foreclosure or by non-judicial sale or enforcement,  Lender may, at
its sole  option,  determine  which of such  remedies  or rights  it may  pursue
without  affecting any of such rights and remedies under this  Guaranty.  If, in
the exercise of any of its rights and remedies,  Lender shall forfeit any of its
rights or remedies,  including its right to enter a deficiency  judgment against
Borrowers or any pledgor,  whether  because of any applicable laws pertaining to
"election of remedies" or the like,  Guarantor hereby consents to such action by
Lender and  waives any claim  based  upon such  action,  even if such  action by
Lender shall result in a full or partial loss of any rights of subrogation which
Guarantor might  otherwise have had but for such action by Lender.  Any election
of remedies  which results in the denial or impairment of the right of Lender to
seek a deficiency  judgment  against  Borrowers or any pledgor  shall not impair
Guarantor's  obligation to pay the full amount of the Obligations.  In the event
Lender  shall bid at any  foreclosure  or  trustee's  sale or at any  private or
public sale permitted by law or under the Documents,  Lender may bid all or less
than the amount of the  Obligations  and the amount of such bid need not be paid
by Lender  but shall be  credited  against  the  Obligations.  The amount of the
successful  bid at any such  sale  shall be  conclusively  deemed to be the fair
market value of the collateral  and the  difference  between such bid amount and
the remaining balance of the Obligations shall be conclusively  deemed to be the
amount of the Obligations  guaranteed under this Guaranty,  notwithstanding that
any  present  or future law or court  decision  or ruling may have the effect of
reducing the amount of any deficiency  claim to which Lender might  otherwise be
entitled but for such bidding at any such sale.

     16. This Guaranty is solely for the benefit of Lender,  its  successors and
assigns  and is not  intended to nor shall it be deemed to be for the benefit of
any third party, including, without limitation, Borrowers. This Guaranty and all
obligations  of Guarantor  hereunder  shall be binding upon the  successors  and
assigns of Guarantor (including,  a debtor-in-possession on behalf of Guarantor)
and shall, together with the rights and remedies of Lender, hereunder,  inure to
the benefit of Lender,  all future holders of any  instrument  evidencing any of
the  Obligations  and its  successors  and  assigns.  No sales,  participations,
assignments,  transfers  or other  dispositions  of any  agreement  governing or
instrument evidencing the Obligations or any portion thereof or interest therein
shall in any manner  affect the rights of Lender or its  successors  and assigns
hereunder. Guarantor may not assign, sell, hypothecate or otherwise transfer any
interest in or obligation under this Guaranty.

     17. If any provision of this Guaranty is unenforceable,  the enforceability
of the other  provisions  shall not be  affected  and they shall  remain in full
force and effect.

     18.  Guarantor  agrees to take such action and to sign such other documents
as may be appropriate to carry out the intent of this Guaranty.

                                       5

     19. This  Guaranty  may be executed  in one or more  counterparts,  each of
which shall be deemed an original.

     20. LENDER,  BY ACCEPTING THIS GUARANTY,  AND GUARANTOR  HEREBY  KNOWINGLY,
VOLUNTARILY AND  INTENTIONALLY  WAIVE THE RIGHT THEY MAY HAVE TO A TRIAL BY JURY
WITH RESPECT TO ANY AND ALL ISSUES PRESENTED IN ANY ACTION, PROCEEDING, CLAIM OR
COUNTERCLAIM  BROUGHT  BY  LENDER  OR  GUARANTOR  AGAINST  THE  OTHER  OR  THEIR
SUCCESSORS  WITH RESPECT TO ANY MATTER ARISING OUT OF OR IN CONNECTION WITH THIS
GUARANTY, THE RELATIONSHIP OF LENDER, BORROWERS AND/OR GUARANTOR, BORROWERS' USE
OR  OCCUPANCY  OF THE  PREMISES,  AND/OR ANY CLAIM FOR INJURY OR DAMAGE,  OR ANY
EMERGENCY OR STATUTORY REMEDY. THIS WAIVER BY LENDER AND GUARANTORS OF ANY RIGHT
THEY  MAY  HAVE TO A  TRIAL  BY  JURY  HAS  BEEN  NEGOTIATED  AND IS A  MATERIAL
INDUCEMENT FOR LENDER ACCEPTING THIS GUARANTY.  FURTHERMORE,  EACH OF LENDER AND
GUARANTOR HEREBY KNOWINGLY,  VOLUNTARILY AND  INTENTIONALLY  WAIVES THE RIGHT IT
MAY HAVE TO SEEK PUNITIVE, CONSEQUENTIAL,  SPECIAL AND INDIRECT DAMAGES FROM THE
OTHER AND ANY OF THE OTHER'S AFFILIATES, OFFICERS, DIRECTORS OR EMPLOYEES OR ANY
OF THEIR  SUCCESSORS WITH RESPECT TO ANY AND ALL ISSUES PRESENTED IN ANY ACTION,
PROCEEDING,  CLAIM OR COUNTERCLAIM  BROUGHT BY EITHER PARTY AGAINST THE OTHER OR
ANY OF THE OTHER'S AFFILIATES,  OFFICERS, DIRECTORS OR EMPLOYEES OR ANY OF THEIR
SUCCESSORS  WITH RESPECT TO ANY MATTER ARISING OUT OF OR IN CONNECTION WITH THIS
GUARANTY OR ANY DOCUMENTS  CONTEMPLATED  HEREIN OR RELATED HERETO. THE WAIVER BY
LENDER AND GUARANTOR OF ANY RIGHT THEY MAY HAVE TO SEEK PUNITIVE, CONSEQUENTIAL,
SPECIAL AND INDIRECT  DAMAGES HAS BEEN NEGOTIATED AND IS AN ESSENTIAL  ASPECT OF
THEIR BARGAIN.

     21. Guarantor shall be liable under this Guaranty for the maximum amount of
such liability that can be incurred hereby without  rendering this Guaranty,  as
it  relates  to the  Guarantor,  voidable  under  applicable  laws  relating  to
fraudulent  conveyance or fraudulent  transfer,  and not for any greater amount.
Guarantor  agrees  that the  Obligations  may at any time and from  time to time
exceed the amount of the liability of Guarantor hereunder without impairing this
Guaranty or affecting the rights and remedies of Lender hereunder.

     22.  Guarantor,  by  executing  this  Guaranty,   hereby  consents  to  the
completion,  execution  and  delivery  of the  Amended  and  Restated  Note  and
acknowledges  that its  obligations to Lender under this Guaranty are continuing
in nature and are not  altered,  modified or affected in any manner by virtue of
the completion,  execution and delivery of the Amended and Restated Note and the
terms and conditions of the amendments to the Note set forth therein.

     23. Guarantor acknowledges and agrees that it has received a copy, read and
understands  the  Loan  Agreement  and  its  related  documents  between  M-Tron
Industries, Inc., Piezo Technology, Inc., and the Lender.

                                       6

     IN WITNESS  WHEREOF,  the undersigned  Guarantor has executed this Guaranty
effective  as of the  date  set  forth  in the  introductory  paragraph  of this
Guaranty.

                                    GUARANTOR:

                                    Lynch Corporation, an Indiana Corporation

                                    By   /s/ John C. Ferrara
                                        ---------------------------------

                                    Its President & CEO

                                    Federal Tax I.D. Number:

                                    38-1799862
                                    ----------

STATE OF CONNECTICUT )
                     ) SS.  GREENWICH
COUNTY OF FAIRFIELD  )

     The  foregoing  instrument  was  acknowledged  before  me this  14th day of
October,  2004, by JOHN C. FERRARA as PRESIDENT and duly  authorized  officer of
Lynch Corporation as his and the corporation's free act and deed.

                                        /s/ Michael J. McIntosh
                                        ----------------------------------
                                        Notary Public

My Commission Expires:

____________________________________

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