FORM 10Q
                                                                      EXHIBIT 10

                         FIFTH AMENDMENT TO CREDIT AGREEMENT

    THIS FIFTH AMENDMENT TO CREDIT AGREEMENT (this "Fifth Amendment") is made
and entered into as of the 28 day of February, 1996, by and between HICKOK
INCORPORATED f/k/a THE HICKOK ELECTRICAL INSTRUMENT COMPANY, an Ohio corporation
("Borrower"), and THE HUNTINGTON NATIONAL BANK, a national banking association
("Bank").

                                      RECITALS:

    A.   Borrower and Bank are the parties to that certain Credit Agreement
dated May 20, 1991, pursuant to which, INTER ALIA, Bank made available to
Borrower a Revolving Credit Facility in the maximum amount of $1,500,000,
subject to the terms and conditions thereof.  Said Credit Agreement was amended
by that certain First Amendment to Credit Agreement dated as of February 28,
1992, that certain Second Amendment to Credit Agreement dated as of February 28,
1993, that certain Third Amendment to Credit Agreement dated as of February 28,
1994 and that certain Fourth Amendment to Credit Agreement dated as of January
13, 1995, all of the foregoing Credit Agreements, as so amended, hereinafter
collectively referred to as the "Loan Agreement".

    B.   Borrower has requested that Bank extend the term of the Revolving
Credit Facility, extend additional credit to Borrower in the form of a temporary
increase in the maximum amount of the Revolving Credit Facility and agree to
certain further modifications to the Loan Agreement.

    C.   Subject to the agreements of Borrower and the satisfaction of
conditions herein set forth, Bank is willing to grant such requests.

    D.   Capitalized terms used in this Agreement and not otherwise defined
herein shall have the meanings assigned to them in the Loan Agreement.



                                     AGREEMENTS:

    FOR AND IN CONSIDERATION of the foregoing Recitals, the mutual covenants
and agreements hereinafter set forth, the sufficiency of which is hereby
acknowledged, the parties agree as follows:

  1.     AMENDMENTS.

    (A)     Section 2.1 of the Loan Agreement is hereby deleted in its entirety
and the following inserted in lieu thereof:

           "2.1    REVOLVING CREDIT: REVOLVING NOTE.

           (A)     Subject to the terms and conditions of this Agreement, Bank
           will make available to Borrower a revolving credit facility (the 
           "Revolving Credit Facility") under which Bank shall, from time to 
           time, upon written or oral (confirmed promptly in writing) request 
           of Borrower therefor, advance loans to Borrower (each a "Revolving 
           Loan" and, collectively, the "Revolving Loans") in the maximum 
           aggregate principal amount at any one time outstanding of not more 
           than Five Million Dollars ($5,000,000).  The Revolving Credit 
           Facility shall have an initial term commencing February 28, 1996
           and shall terminate on February 28, 1997; provided, however,
           that unless Bank or Borrower shall have given written notice
           of termination to the other not later than 60 days prior to the 
           last date of such term (or renewal term), the Revolving Credit 
           Facility shall be extended automatically for successive (1) year 
           terms (the "Renewal Term(s)").  In addition to the Revolving Credit 
           Facility, Bank will make available to Borrower from February  28, 
           1996 through December 31, 1996, an additional amount of Two Million
           Dollars ($2,000,000) (the "Supplemental Revolving Loan"). Advances 
           under the Supplemental Revolving Loan shall be subject to the 
           provisions of the Loan Agreement, shall for all purposes be 
           considered Revolving Loans hereunder and the term "Revolving Loans" 
           shall include the Supplemental Revolving Loan.  The Supplemental 
           Revolving Loan is not subject to any renewal, and shall expire in 
           accordance with its terms.  All advances of Revolving Loans shall be
           repayable,as provided in Section 2.4, and shall be used by Borrower 
           as provided in Section 5.5, below."

    (B)    Section 2.3 of the Loan Agreement is hereby deleted in its entirety
and the following inserted in lieu thereof:

                   "2.3. INTEREST RATES.  Unless otherwise expressly provided
                   herein or in the Revolving Note or the Supplemental
                   Revolving Note, the Liabilities

                                      -2-



         shall bear interest, payable monthly as provided in Section 2.4,
         calculated daily on the basis of a 360-day year (that is, computed by
         obtaining a daily interest factor at the applicable rate based upon a
         360-day factor at the applicable rate based upon a 360-day year and
         multiplying such factor by the actual number of days elapsed in the
         interest computation period), at either of the interest rates set
         forth below as elected by Borrower from time to time at Borrower's
         option in accordance herewith:

    (A)  PRIME COMMERCIAL RATE.  Borrower agrees to pay Bank monthly
         interest on the unpaid balance of the Revolving Loans at a
         variable rate of interest equal to the Prime Commercial
         Rate.  Subject to any maximum interest rate limitation
         specified by applicable law, the variable rate of interest
         provided for herein shall change automatically without
         notice to Borrower with each chance in the Prime Commercial
         Rate.  The Prime Commercial Rate shall be applicable at all
         times prior to termination date of the Revolving Loans to
         all the unpaid principal balance of the Revolving Loans that
         is not subject to the alternative interest rate option as
         may be elected by Borrower in accordance with Section 2.3(B)
         below.  A "Prime Interest Rate Advance" shall mean any
         amount borrowed as part of the Revolving Loans that bears
         interest at the Prime Commercial Rate.

    (B)  LIBOR RATE.  Borrower may from time to time prior to the
         termination date of the Revolving Loans, elect to have
         interest accrue on all or part of the outstanding principal
         balance of the Revolving Loans at a rate of interest equal
         to two and three quarters percent (2 3/4%) per annum in
         excess of the LIBOR Rate.  "LIBOR Rate" shall mean, with
         respect to any LIBOR Rate Advance and the related Interest
         Period (as hereinafter defined), the per annum rate that is
         equal to the quotient of:

         (i)  the actual or estimated arithmetic mean of the per
              annum rates of interest at which deposits in U.S.
              dollars for the related Interest Period and in an
              aggregate amount comparable to the amount of such LIBOR
              Rate Advance are being offered to U.S. banks by one or
              more prime banks in the London interbank market, as
              determined by Bank in its discretion based upon
              reference to information appearing on the display
              designated as page "LIBOR" on the Reuters Monitor Money
              Rate Service (or such other page as may replace the
              LIBOR page on that service for the purpose of
              displaying London interbank offered rates of major
              banks) or any comparable index selected by Bank, the
              obtaining of rate quotations, or any other reasonable
              procedure, at approximately 11:00 a.m. London, England,
              time, on the second LIBOR business day prior to the
              first


                                      -3-



                   day of the related Interest Period; all as determined by
                   Bank, such sum to be rounded up, if necessary, to the
                   nearest whole multiple of 1/16 of 1%; divided by

         (ii)      a percentage equal to 100% minus the rate (expressed as a
                   percentage), if any, at which reserve requirements are
                   imposed on Bank, on the second LIBOR business day prior to
                   the first day of the related Interest Period, with respect
                   to any "Eurocurrency liabilities" under Regulation D of the
                   Board of Govenors of the Federal Reserve System or any other
                   regulations of any governmental authority having
                   jurisdiction with respect thereto (including, without
                   limitation, any marginal, emergency, supplemental, special
                   or other reserves) for a term comparable to such Interest
                   Period.  This provision is for the benefit of Bank and is
                   not intended to increase the expected yield to Bank above
                   the rates of interest provided for in this Agreement.

              "LIBOR Rate Advance" shall mean any amount borrowed as part of
              the Revolving Loans that bears interest at a rate calculated with
              reference to the LIBOR Rate.  "LIBOR business day" shall mean,
              with respect to any LIBOR Rate Advance, a day which is both a day
              on which Bank is open for business and a day on which dealings in
              U.S. dollar deposits are carried out in the London interbank
              market.  Any and all LIBOR Rate Advances shall be requested by
              Borrower in a minimum amount not less than Five Hundred Thousand
              Dollars ($500,000).

         (C)  NOTICE OF ELECTION.  Borrower may initially elect to request an
              Advance of any type, continue an Advance of one type as an
              Advance of the then existing type or convert an Advance of one
              type to an Advance of another type, by giving notice thereof to
              Bank in writing not later than 10:00 a.m. New York time, three
              LIBOR business days prior to the date any such continuation of or
              conversion to a LIBOR Rate Advance is to be effective, PROVIDED,
              that an outstanding Advance may only be converted on the last day
              of the then current Interest Period (if applicable) with respect
              to such Advance, and PROVIDED, FURTHER, that upon the
              continuation or conversion of an Advance such notice shall also
              specify the Interest Period (if applicable) to be applicable
              thereto upon such continuation or conversion.  If Borrower shall
              fail to timely deliver such a notice with respect to any
              outstanding Advance, Borrower shall be deemed to have elected to
              convert such Advance to a Prime Interest Rate Advance on the last
              day of the then current Interest Period with respect to such
              Advance.


                                      -4-




         (D)  INTEREST CALCULATION AND INTEREST PAYMENT DATE.

              "Interest Period" shall mean:

              (i)  With respect to any LIBOR Rate Advance, an initial period
                   commencing, as the case may be, on the day such an Advance
                   shall be made by Bank, or on the day of conversion of any
                   then outstanding Advance to an Advance of such type, and
                   ending on the date thirty (30) days, sixty (60) days or
                   ninety (90) days thereafter, all as Borrower may elect
                   pursuant to Section 2.3(B) of this Agreement, provided, that
                   (a) any Interest Period with respect to a LIBOR Rate Advance
                   that shall commence on the last LIBOR business day of the
                   calendar month (or on any day for which there is no
                   numerically corresponding day in the appropriate subsequent
                   calendar month) shall end on the last LIBOR business day of
                   the appropriate subsequent calendar month; and (b) each
                   Interest Period with respect to a LIBOR Rate Advance that
                   would otherwise end on a day which is not a LIBOR business
                   day shall end on the next succeeding LIBOR business day or,
                   if such next succeeding LIBOR business day falls in the next
                   succeeding calendar month, on the next preceding LIBOR
                   business day.

              (ii) With respect to a Prime Interest Rate Advance, an initial
                   period commencing, as the case may be, on the day such an
                   Advance shall be made by Bank, or on the day of conversion
                   of any then outstanding Advance to an Advance of such type,
                   and ending on the day of conversion to an Advance of a
                   different type.

         (E)  ADDITIONAL COSTS.  In the event that any applicable law, treaty,
              rule or regulation (whether domestic or foreign) now or hereafter
              in effect, or any interpretation or administration thereof by any
              governmental authority charged with the interpretation or
              administration thereof, or compliance by Bank with any request or
              directive of any such authority (whether or not having the force
              of law), shall (a) affect the basis of taxation of payments to
              Bank of any amounts payable by Borrower for LIBOR Rate Advances
              under this Agreement (other than taxes imposed on the overall net
              income of Bank by the jurisdiction, or by any political
              subdivision or taxing authority of any such jurisdiction, in
              which Bank has its principal office), or (b) shall impose, modify
              or deem applicable any reserve, special deposit or similar
              requirement against assets of, deposits with or for the account
              of, or credit extended by Bank, or (c) shall impose any other
              condition, requirement or


                                      -5-



              charge with respect to this Agreement or the Revolving Loans
              (including, without limitation, any capital adequacy requirement,
              any requirement which affects the manner in which Bank allocates
              capital resources to its commitments or any similar requirement),
              and the result of any of the foregoing is to increase the cost to
              Bank of making or maintaining the Revolving Loans or any Advance
              thereunder, to reduce the amount of any sum receivable by Bank
              thereon, or to reduce the rate of return on Bank's capital, then
              Borrower shall pay to Bank, from time to time, upon request of
              Bank, additional amounts sufficient to compensate Bank for such
              increased cost, reduced sum receivable or reduced rate of return
              to the extent Bank is not compensated therefor in the computation
              of the interest rates applicable to the Revolving Loans.  A
              detailed statement as to the amount of such increased cost,
              reduced sum receivable or reduced rate of return, prepared in
              good faith and submitted by Bank to Borrower, shall be conclusive
              and binding for all purposes relative to Bank, absent manifest
              error in computation.  Bank shall promptly notify Borrower of any
              event occurring after the date of this Agreement that entitles
              Bank to additional compensation pursuant to this Section 2.3(E).

         (F)  LIMITATIONS ON REQUESTS AND ELECTIONS.  Notwithstanding any other
              provision of this Agreement to the contrary, if, upon receiving a
              request for an Advance or a request for a contribution of an
              Advance as an Advance of the then existing type or conversion of
              an Advance to an Advance of another type (a) in the case of any
              LIBOR Rate Advance, deposits in dollars for periods comparable to
              the Interest Period elected by Borrower are not available to Bank
              in the London interbank or secondary market, or (b) the LIBOR
              Rate will not accurately cover the cost to Bank of making or
              maintaining the LIBOR Rate Advance, or (c) by reason of national
              or international financial, political or economic conditions or
              by reason of any applicable law, treaty, rule or regulation
              (whether domestic or foreign) now or hereafter in effect, or the
              interpretation or administration thereof by any governmental
              authority charged with the interpretation or administration
              thereof, or compliance by Bank with any request or directive of
              such authority (whether or not having the force of law),
              including without limitation exchange controls, it is
              impracticable, unlawful or impossible for Bank (i) to make the
              LIBOR Rate Advance or (ii) to continue such Advance as a LIBOR
              Rate Advance or (iii) to convert an Advance to a LIBOR Rate
              Advance, then Borrower shall not be entitled, so long as such
              circumstances continue, to request a LIBOR Rate Advance or a
              continuation of or conversion to such Advances from Bank.  In the
              event that such circumstances no longer exist, Bank shall again
              consider requests for LIBOR


                                      -6-




              Rate Advances of the affected type and requests for contributions
              of and conversions to such Advances of the affected type.

         (G)  ILLEGALITY AND IMPOSSIBILITY. In the event that any applicable 
              law, treaty, rule or regulation (whether domestic or foreign) 
              now or hereafter in effect, or any interpretation or 
              administration thereof by any governmental authority charged 
              with the interpretation or administration thereof, or compliance
              by Bank with any request or directive of such authority (whether
              or not having the force of law), including without limitation 
              exchange controls, shall make it unlawful or impossible for Bank
              to maintain any Advance under this Agreement, Borrower shall upon
              receipt of notice thereof from Bank, repay in full the then
              outstanding principal amount of all Advances made by Bank
              together with all accrued interest thereon to the date of
              payment and all amounts due to Bank under Section 2.3(H), (a)
              on the last day of the then current Interest Period, if any,
              applicable to such Advance, if Bank may lawfully continue to
              maintain such Advances to such day, or (b) immediately if
              Bank may not continue to maintain such Advance to such day.
              This provision is for the benefit of Bank and is not intended
              to increase the yield to Bank above the rates of interest
              provided for in this Agreement.  This Section 2.3(G) shall
              apply only as long as such illegality exists.  Bank shall use
              reasonable, lawful efforts to avoid the impact of such law,
              treaty, rule or regulation. As an alternative to the repayment
              obligation provided in this Section 2.3(G), Borrower may, at
              its option, and at the time provided in this Section 2.3(G),
              convert any affected Advance to a Prime Interest Rate Advance.

         (H)  INDEMNIFICATION.  If Borrower makes any payment of principal with
              respect to any Advance an any other date than the last day of an
              Interest Period applicable thereto or if Borrower fails to borrow
              any Advance after notice has been given to Bank in accordance 
              with Section 2.3(C), or fails to make any payment of principal 
              or interest in respect of an Advance when due or at the 
              termination date of the Revolving Loans, Borrower shall reimburse 
              Bank on demand for any resulting loss or expense incurred by 
              Bank, determined in Bank's reasonable opinion, including without 
              limitation any loss incurred in obtaining, liquidating or 
              employing deposits from third parties.  A detailed statement as 
              to the amount of such loss or expense, prepared in good faith and 
              submitted by Bank to Borrower shall be conclusive and binding for 
              all purposes absent manifest error in computation. Bank shall 
              promptly notify Borrower of any event occurring after the
              date of this Agreement that entitles Bank to reimbursement 
              pursuant to this Section 2.3(H).



                                      -7-




    (I)  SURVIVAL OF OBLIGATIONS.  The provisions of Sections 2.3(E) and
         2.3(H) shall survive the termination of this Agreement and the
         payment in full of all promissory notes outstanding pursuant thereto.

    (J)  PREPAYMENT PREMIUM.  Borrower further agrees that if Borrower shall
         elect to prepay, upon at least five (5) business days prior written
         notice to Bank, all or part of the unpaid balance of a LIBOR Rate
         Advance, Borrower shall pay a Prepayment Premium (as herein defined)
         in accordance with the following: If (i) said prepayment shall be made
         on or before the date that is the last day of the applicable Interest
         Period, and (ii) the Rate of Differential (as defined below) is greater
         than zero, then the undersigned shall pay to Bank on the date of
         prepayment a Prepayment Premium calculated using the following
         formula:

              Prepayment Premium = RD x Y x (AP - AD) x PVF

         where:

              (i)       RD is the Rate Differential and means (a) Bank's cost
                        of funding for the original term of the obligation
                        evidenced by the Revolving Note or the Supplemental
                        Revolving Note to the last scheduled payment of
                        principal expressed as a per annum rate of interest, as
                        determined by Bank, minus (b) the rate at which Bank
                        re-employs or could re-employ the funds prepaid for the
                        remaining term of the obligation evidenced by the Note
                        through the last scheduled payment of principal,
                        expressed as a per annum rate of interest, as
                        determined by Bank;

              (ii)      Y is the Years and means the number of years in
                        fractions of years beginning on the date of the
                        prepayment and ending on the last day prior to the end
                        of the applicable Interest Period for a LIBOR Rate
                        Advance;

              (iii)     AP is the Amount Paid and means the actual amount of
                        principal paid on the date of prepayment;

              (iv)      AD is the Amount Due and means the principal portion of
                        the Revolving Loans paid on the date of the prepayment;
                        and

              (v)       PVF is the Present Value Factor and means the value of
                        $1.00 for Y number of years discounted at


                                      -8-





                        the per annum rate of interest at which Bank re-
                        employs or could re-employ the funds prepaid for the
                        remaining  term of the obligation evidenced by the
                        Revolving Note or the Supplemental Revolving Note
                        through the last scheduled payment of principal,
                        expressed as a per annum rate of interest, as
                        determined by Bank.

              Any prepayment of a LIBOR Rate Advance made hereunder shall be
              in an amount equal to the sum of (a) the amount of the prepayment
              as calculated above; (b) all interest accrued to date of such
              prepayment; (c) any late charge or charges then due and owing;
              and (d) an amount sufficient to compensate Bank for any loss,
              charges, penalties or other sums incurred or suffered by Bank
              because of any match funding of all or any part of the principal
              amount of the Revolving Loans."

    (C)  Section 2.4(C) of the Loan Agreement is hereby deleted in its entirety
and the following inserted in lieu thereof:

         "(C) The entire balance of the principal of the Revolving Credit
         Facility shall be payable in full on the later of (i) February 28,
         1997 or (ii) the date on which any current Renewal Term expires
         without such term having been renewed for a subsequent additional
         Renewal Term pursuant to Section 2.1(A).  The entire balance of the
         principal and accrued interest of the Supplemental Revolving Loan
         shall be payable in full on December 31, 1996."

         (D)  Section 5.2(J) is hereby amended by deleting therefrom the
numerals "$6,000,000.00" and inserting the numerals "$7,000,000.00" in lieu
thereof.

         "(E)  Section 5.2(K) is hereby amended by deleting therefrom the
numerals $8,000,000.00" and inserting the numerals "$10,000,000.00" in lieu
thereof.

    2.   EFFECTIVE DATE: CONDITIONS PRECEDENT.  The modifications to the Loan
Agreement set forth in Paragraph 1, above, shall be effective on February 28,
1996, or such later date as is mutually acceptable to Borrower and Bank ("the
Effective Date"), provided that such effectiveness shall be subject to the
satisfaction by Borrower of each of the following conditions precedent:


                                      -9-



         (a)  Borrower shall have executed and delivered to Bank on Amended and
Restated Revolving Note in the form of EXHIBIT A hereto and a Supplemental
Revolving Note in the form of EXHIBIT B hereto.

         (b)  The Secretary of Borrower shall have delivered his or her
certificate, attaching a true and correct copy of the resolutions of its Board
of Directors authorizing its execution and delivery of this Fifth Amendment, 
and the taking of the actions contemplated hereby.

         (c)  Each of the Existing Subsidiaries shall have executed and
delivered a confirmation and acknowledgment of their respective Continuing
Guaranties in the form of EXHIBIT C hereto.

         (d)  The Secretary of each Existing Subsidiary shall have delivered
his or her certificate attaching a true and correct copy of the resolutions of
its Board of Directors authorizing its execution and delivery of the
confirmation and acknowledgment of their respective Continuing Guaranties.

         (e)  Borrower shall have delivered to Bank such other instruments and
taken such other actions as Bank or its special counsel may reasonably request.

    4.   OTHER LOAN DOCUMENTS.  Any reference in any of the Other Agreements to
the Loan Agreement shall, from and after the Effective Date, be deemed to refer
to the Loan Agreement, as modified by this Fifth Amendment, and the term "Other
Agreements" shall be deemed to include the other documents contemplated to be
delivered hereunder.

    5.   BANK'S EXPENSE.  Borrower agrees to reimburse Bank promptly for Bank's
costs and expenses incurred in connection with this Fifth Amendment and the
transactions contemplated hereby, including, without limitation, the fees and
expenses of Bank's special counsel.


                                      -10-




    6.   REVOLVING CREDIT FACILITY FEES.  Borrower agrees to pay Bank a
facility fee for the Revolving Credit Facility of Five Thousand and 00/100
Dollars ($5,000.00) payable on the date of execution of this Fifth Amendment.
Borrower further agrees to pay Bank an additional facility fee for the
Supplemental Revolving Loan of One Thousand and 00/100 Dollars
($1.000.00) payable on the date of execution of this Fifth Amendment.

    7.   REAFFIRMATION OF BORROWER'S REPRESENTATIONS AND WARRANTIES/BINDING
EFFECT.  Borrower hereby represents and warrants to Bank that on the Effective
Date (a) Borrower has the legal power and authority to execute and deliver this
Amendment; (b) the officials executing this Fifth Amendment have been duly
authorized to execute and deliver the same and bind Borrower with respect to the
provisions hereof; (c) the execution and delivery hereof by Borrower and the
performance and observance by Borrower of the provisions hereof do not violate
or conflict with the organizational agreements of Borrower or any law applicable
to Borrower or result in a breach of any provisions of or constitute a default
under any other agreement, instrument or document binding upon or enforceable
against Borrower; (d) after giving effect to the amendments effected hereby,
there shall exist no Possible Default or Event of Default; and (e) this
Amendment constitutes a valid and binding obligation upon Borrower in every
respect.

    8.   NO OTHER MODIFICATIONS: SAME INDEBTEDNESS.  Except as expressly
provided in this Fifth Amendment, all of the terms and conditions of the Loan
Agreement and the Other Agreements remain unchanged and in full force and
effect.  The modifications effected by this Fifth Amendment and by the other
instruments contemplated hereby shall not be deemed to provide for or effect a
repayment and re-advance of any of the Liabilities now outstanding, it being
the intention of both Borrower and Bank hereby that the Indebtedness owing under
the


                                      -11-




Loan Agreement, as amended by this Fifth Amendment, be and is the same
Indebtedness as that owing under the Loan Agreement immediately prior to the
effectiveness hereof.

    9.   GOVERNING LAW. This Fifth Amendment shall be governed by and construed
in accordance with the laws of the State of Ohio and shall be binding upon
Borrower, Bank and their respective successors and assigns.

    IN WITNESS WHEREOF, Borrower and Bank have hereunto set their hands as of
the date first above written.



THE HUNTINGTON NATIONAL BANK                HICKOK INCORPORATED f/k/a
                                            THE HICKOK ELECTRICAL
                                            INSTRUMENT COMPANY


/s/ Herbert A. Werner                       /s/ Robert L. Bauman
By: --------------------------------        By: -----------------------
Herbert A. Werner, Vice President           Robert L. Bauman, President
                                            and Chief Executive Officer



                                      -12-




                             THE HUNTINGTON NATIONAL BANK

                         AMENDED AND RESTATED REVOLVING NOTE

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

City Office   Cleveland      Division  266      Branch           [ ] Secured
           ---------------            ------           -----
Account No.   8241400008          Note No.                     [X] Unsecured
           ---------------                 --------------

Account Name Hickok Incorporated f/k/a The Hickok Electrical Instrument Company
            -----------------------------------------------------------------

[X] Corporation         [ ] Partnership          [ ] Individual/Proprietorship

[ ] Other
         --------------------------------------------------------------------

Bank Approval Officer Initial             Bank Closing Officer Initial
                             -------                                  -------

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


$5,000,000.00           Cleveland, Ohio               As of February 28, 1996
                                                                    ----

    FOR VALUE RECEIVED, the undersigned promises to pay to the order of THE
HUNTINGTON NATIONAL BANK (hereinafter called the "Bank," which term shall
include any holder hereof) at such place as the Bank may designate or, in the
absence of such designation, at any of the Bank's offices, the sum of Five
Million and No/100 Dollars ($5,000,000.00) or so much thereof as shall have been
advanced by the Bank at any time and not hereafter repaid (hereinafter referred
to as "Principal Sum") together with interest as hereinafter provided and
payable at the time(s) and in the manner(s) hereinafter provided all of the
foregoing in accordance with the terms of the Credit Agreement (hereinafter
defined).  Subject to the provisions of the Credit Agreement, the proceeds of
the Revolving Loans evidenced hereby may be advanced, repaid and readvanced in
partial amounts during the term of this revolving note ("Note") and prior to
maturity.  Each such advance shall be made to the undersigned upon receipt by
the Bank of the undersigned's application therefor and disbursement
instructions, which shall be in such form as the Bank shall from time to time
prescribe.  The Bank shall be entitled to rely on any oral or telephonic
communication requesting an advance and/or providing disbursement instructions
hereunder, which shall be received by it in good faith from anyone reasonably
believed by the Bank to be the undersigned, or the undersigned's authorized
agent.  The undersigned agrees that all advances made by the Bank will be
evidenced by entries made by the Bank into its electronic data processing system
and/or internal



memoranda maintained by the Bank.  The undersigned further agrees that the sum
or sums shown on the most recent printout from the Bank's electronic data
processing system and/or on such memoranda shall be rebuttably presumptive
evidence of the amount of the Principal Sum and of the amount of any accrued
interest.

INTEREST

    Interest will accrue on the unpaid balance of the Principal Sum until paid
at a rate of interest per annum determined in accordance with the interest rate
options provided in the Credit Agreement.

    Upon default, whether by acceleration or otherwise, interest will accrue on
the unpaid balance of the Principal Sum and unpaid interest, if any, until paid
at a variable rate of interest per annum, which shall change in the manner set
forth below, equal to four (4) percentage points in excess of the Prime
Commercial Rate, provided that at no time shall the rate of interest upon
default be less than 8% per annum.

    All interest shall be calculated by obtaining a daily interest factor for
the applicable interest rate based upon a 360-day year and multiplying it by the
actual number of days the Principal Sum or any part thereof remains unpaid.
Prepayment may only be made in the manner permitted in the Credit Agreement.
The amount of any payment shall first be applied to the payment of any interest
which is due.

    As used herein, Prime Commercial Rate shall have the same meaning as set
forth in the Credit Agreement.  Subject to any maximum or minimum interest rate
limitation specified herein or by applicable law, any variable rate of interest
on the obligations evidenced hereby shall change automatically without notice to
the undersigned immediately with each change in the Prime Commercial Rate.

MANNER OF PAYMENT

    Subject to the provisions of the Default paragraph below and of Article 6
of the Credit Agreement dated May 20, 1991 by and between the undersigned and
the Bank, as amended and supplemented thereafter, including the modifications
set forth in the Fifth Amendment to Credit Agreement executed by and between the
undersigned and the Bank of even date herewith (the foregoing Credit Agreement
and all Amendments thereto collectively referred to herein as the "Credit
Agreement"), the Principal Sum shall be payable in full on the later of (i)
February 28, 1997 or (ii) the date on which any current Renewal Term expires
without such term having been renewed for a subsequent additional renewal term
pursuant to Section 2.1(A) of the Credit Agreement.  Accrued interest hereunder
shall be due and payable in arrears on the first day of each calendar month
beginning on March 1, 1996, or, as otherwise provided in Section 2.3 of the
Credit Agreement with respect to LIBOR Rate Advances, or, at the Bank's option,
shall be added to the Principal Sum.


                                      -2-



LATE CHARGE

    Any installment or other payment not made within five (5) days of the date
such payment or installment is due shall be subject to a late charge equal to 5%
of the amount of the installment or payment.

DEFAULT

    Upon the occurrence of an Event of Default (as defined in the Credit
Agreement) of the type described in Section 6.1(F) or (G) of the Credit
Agreement, the maturity of the obligations evidenced hereby shall, automatically
and without any action by Bank, be accelerated, and such obligations shall be
immediately due and payable.  Upon the occurrence of any other Event of Default,
the Bank may, at its option, without notice or demand, accelerate the maturity
of the obligations evidenced hereby, which obligations shall become immediately
due and payable.  Upon the occurrence and during the continuance of any Event of
Default, the rate of interest accruing hereunder shall, at the Bank's option, be
increased to a rate per annum which shall be four percentage points (4.0%) in
excess of the Prime Commercial Rate.  In no event shall the rate of interest
hereunder exceed the maximum rate allowable under applicable law.  In the event
the Bank shall institute an action for the enforcement or collection of the
obligations evidenced hereby, the undersigned agrees to pay all costs and
expenses of such action, including reasonable attorneys' fees, to the extent
permitted by law.

GENERAL PROVISIONS

    This Note represents an amendment and restatement of the terms of that
certain Revolving Note originally dated May 20, 1991, and amended and restated
by that certain Amended and Restated Revolving note dated as of February 28,
1992, that certain Amended and Restated Revolving Note dated as of February 28,
1993, that certain Amended and Restated Revolving Note dated as of February 28,
1994 and that certain Amended and Restated Revolving Note dated January 13,
1995.  This Note shall be governed by and have the benefit of all the terms and
provisions of that certain Credit Agreement dated May 20, 1991, that certain
First Amendment to Credit Agreement dated as of February 28, 1992, that certain
Second Amendment to Credit Agreement dated as of February 28, 1993, that certain
Third Amendment to Credit Agreement dated as of February 28, 1994, that certain
Fourth Amendment to Credit Agreement dated January 13, 1995, and that Fifth
Amendment to Credit Agreement executed of even date herewith.  All terms used
herein and not otherwise defined shall have the same meaning as in the Credit
Agreement.

    All of the parties hereto, including the undersigned, and any indorser,
surety, or guarantor, hereby severally waive presentment, notice of dishonor,
protest, notice of protest, and diligence in bringing suit against any party
hereto, and consent that, without discharging any of them, the time of payment
may be extended an unlimited number of times before or after maturity without
notice.  The Bank shall not be required to pursue any party hereto, including


                                      -3-




any guarantor, or to exercise any rights against any collateral herefor before
exercising any other such rights.

    The obligations evidenced hereby may from time to time be evidenced by
another note or notes given in substitution, renewal or extension hereof.  Any
security interest or mortgage which secures the obligations evidenced hereby
shall remain in full force and effect notwithstanding any such substitution,
renewal, or extension.

    The captions used herein are for references only and shall not be deemed a
part of this Note. If any of the terms or provisions of this Note shall be
deemed unenforceable, the enforceability of the remaining terms and provisions
shall not be affected.  This Note shall be governed by and construed in
accordance with the law of the State of Ohio.

WAIVER OF RIGHT TO TRIAL BY JURY

    THE UNDERSIGNED ACKNOWLEDGES THAT, AS TO ANY AND ALL DISPUTES THAT MAY
ARISE BETWEEN THE UNDERSIGNED AND THE BANK, THE COMMERCIAL NATURE OF THE
TRANSACTION OUT OF WHICH THIS NOTE ARISES WOULD MAKE ANY SUCH DISPUTE UNSUITABLE
FOR TRIAL BY JURY.  ACCORDINGLY, THE UNDERSIGNED HEREBY WAIVES ANY RIGHT TO
TRIAL BY JURY AS TO ANY AND ALL DISPUTES THAT MAY ARISE RELATING TO THIS NOTE OR
TO ANY OF THE OTHER INSTRUMENTS OR DOCUMENTS EXECUTED IN CONNECTION HEREWITH.

WARRANT OF ATTORNEY

    The undersigned authorizes any attorney at law to appear in any Court of
Record in the State of Ohio or in any state or territory of the United States
after the above indebtedness becomes due, whether by acceleration or otherwise,
to waive the issuing and service of process, and to confess judgment against the
undersigned in favor of the Bank for the amount then appearing due together with
costs of suit, and thereupon to waive all errors and all rights of appeal and
stays of execution.  The foregoing warrant of attorney shall survive any such
judgment and should any such judgment be vacated for any reason, the foregoing
warrant of attorney nevertheless may thereafter be utilized for obtaining
judgment or judgments.


                                      -4-




WARNING -- BY SIGNING THIS PAPER YOU GIVE UP YOUR RIGHT TO NOTICE AND COURT
TRIAL.  IF YOU DO NOT PAY ON TIME A COURT JUDGMENT MAY BE TAKEN AGAINST YOU
WITHOUT YOUR PRIOR KNOWLEDGE AND THE POWERS OF A COURT CAN BE USED TO COLLECT
FROM YOU REGARDLESS OF ANY CLAIMS YOU MAY HAVE AGAINST THE CREDITOR WHETHER FOR
RETURNED GOODS,  FAULTY GOOD, FAILURE ON HIS PART TO COMPLY WITH THE AGREEMENT,
OR ANY OTHER CAUSE.

Signed and acknowledged in the         HICKOK INCORPORATED f/k/a
presence of:                           THE HICKOK ELECTRICAL
                                       INSTRUMENT COMPANY

- ------------------------------
Print Name: E. Nowakowski
          -------------------


                                       By: /s/ Robert L. Bauman
- ------------------------------            ------------------------------
Print Name: Karen Gaul                      Robert L. Bauman, President
                                            and Chief Executive Officer



This instrument prepared by:

Anne T. Corrigan, Esq.
McDonald, Hopkins, Burke & Haber Co., L.P.A.
2100 Bank One Center
600 Superior Avenue, E.
Cleveland, Ohio 44114-2653
(216) 348-5400


                                      -5-




                             THE HUNTINGTON NATIONAL BANK

                             SUPPLEMENTAL REVOLVING NOTE

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

City Office   Cleveland      Division  266      Branch           [ ] Secured
           ---------------            ------           -----
Account No.   8241400008          Note No.                     [X] Unsecured
           ---------------                 --------------

Account Name Hickok Incorporated f/k/a The Hickok Electrical Instrument Company
            -----------------------------------------------------------------

[X] Corporation         [ ] Partnership          [ ] Individual/Proprietorship

[ ] Other
         --------------------------------------------------------------------

Bank Approval Officer Initial             Bank Closing Officer Initial
                             -------                                  -------

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


$2,000,000.00           Cleveland, Ohio               As of February 28, 1996
                                                                    ----

    FOR VALUE RECEIVED, the undersigned promises to pay to the order of THE
HUNTINGTON NATIONAL BANK (hereinafter called the "Bank," which term shall
include any holder hereof) at such place as the Bank may designate or, in the
absence of such designation, at any of the Bank's offices, the sum of Two
Million and No/100 Dollars ($2,000,000.00) or so much thereof as shall have been
advanced by the Bank at any time and not hereafter repaid (hereinafter referred
to as "Principal Sum") together with interest as hereinafter provided and
payable at the time(s) and in the manner(s) hereinafter provided all of the
foregoing in accordance with the terms of the Credit Agreement (hereinafter
defined).  Subject to the provisions of the Credit Agreement, the proceeds of
the Revolving Loans evidenced hereby may be advanced, repaid and readvanced in
partial amounts during the term of this revolving note ("Note") and prior to
maturity.  Each such advance shall be made to the undersigned upon receipt by
the Bank, of the undersigned's application therefor and disbursement
instructions, which shall be in such form as the Bank shall from time to time
prescribe.  The Bank shall be entitled to rely on any oral or telephonic
communication requesting an advance and/or providing disbursement instructions
hereunder, which shall be received by it in good faith from anyone reasonably
believed by the Bank to be the undersigned, or the undersigned's authorized
agent.  The undersigned agrees that all advances made by the Bank will be
evidenced by entries made by the Bank into its electronic data processing system
and/or internal



memoranda maintained by the Bank.  The undersigned further agrees that the sum
or sums shown on the most recent printout from the Bank's electronic data
processing system and/or on such memoranda shall be rebuttably presumptive
evidence of the amount of the Principal Sum and of the amount of any accrued
interest.

INTEREST

    Interest will accrue on the unpaid balance of the Principal Sum until paid
at a rate of interest per annum determined in accordance with the interest rate
options provided in the Credit Agreement.

    Upon default, whether by acceleration or otherwise, interest will accrue on
the unpaid balance of the Principal Sum and unpaid interest, if any, until paid
at a variable rate of interest per annum, which shall change in the manner set
forth below, equal to four (4) percentage points in excess of the Prime
Commercial Rate, provided that at no time shall the rate of interest upon
default be less than 8% per annum.

    All interest shall be calculated by obtaining a daily interest factor for
the applicable interest rate based upon a 360-day year and multiplying it by the
actual number of days the Principal Sum or any part thereof remains unpaid.
Prepayment may only be made in the manner permitted in the Credit Agreement.
The amount of any payment shall first be applied to the payment of any interest
which is due.

    As used herein, Prime Commercial Rate shall have the same meaning as set
forth in the Credit Agreement.  Subject to any maximum or minimum interest rate
limitation specified herein or by applicable law, any variable rate of interest
on the obligations evidenced hereby shall change automatically without notice to
the undersigned immediately with each change in the Prime Commercial Rate.

MANNER OF PAYMENT

    Subject to the provisions of the Default paragraph below and of Article 6
of the Credit Agreement dated May 20, 1991 by and between the undersigned and
the Bank, as amended and supplemented thereafter, including the modifications
set forth in the Fifth Amendment to Credit Agreement executed by and between the
undersigned and the Bank of even date herewith (the foregoing Credit Agreement
and all Amendments thereto collectively referred to herein as the "Credit
Agreement"), the Principal Sum shall be payable in full on December 31, 1996.
Accrued interest hereunder shall be due and payable in arrears on the first day
of each calendar month beginning on March 1, 1996, or, as otherwise provided in
Section 2.3 of the Credit Agreement with respect to LIBOR Rate Advances, or, at
the Bank's option, shall be added to the Principal Sum.


                                      -2-




LATE CHARGE

    Any installment or other payment not made within five (5) days of the date
such payment or installment is due shall be subject to a late charge equal to 5%
of the amount of the installment or payment.

DEFAULT

    Upon the occurrence of an Event of Default (as defined in the Credit
Agreement) of the type described in Section 6.1(F) or (G) of the Credit
Agreement, the maturity of the obligations evidenced hereby shall, automatically
and without any action by Bank, be accelerated, and such obligations shall be
immediately due and payable.  Upon the occurrence of any other Event of Default,
the Bank may, at its option, without notice or demand, accelerate the maturity
of the obligations evidenced hereby, which obligations shall become immediately
due and payable.  Upon the occurrence and during the continuance of any Event of
Default, the rate of interest accruing hereunder shall, at the Bank's option, be
increased to a rate per annum which shall be four percentage points (4.0%) in
excess of the Prime Commercial Rate.  In no event shall the rate of interest
hereunder exceed the maximum rate allowable under applicable law.  In the event
the Bank shall institute an action for the enforcement or collection of the
obligations evidenced hereby, the undersigned agrees to pay all costs and
expenses of such action, including reasonable attorneys' fees, to the extent
permitted by law.

GENERAL PROVISIONS

    This Note shall be governed by and have the benefit of all the terms and
provisions of that certain Credit Agreement dated May 20, 1991, that certain
First Amendment to Credit Agreement dated as of February 28, 1992, that certain
Second Amendment to Credit Agreement dated as of February 28, 1993, that certain
Third Amendment to Credit Agreement dated as of February 28, 1994, that certain
Fourth Amendment to Credit Agreement dated January 13, 1995, and that Fifth
Amendment to Credit Agreement executed of even date herewith.  All terms used
herein and not otherwise defined shall have the same meaning as in the Credit
Agreement.

    All of the parties hereto, including the undersigned, and any indorser,
surety, or guarantor, hereby severally waive presentment, notice of dishonor,
protest, notice of protest, and diligence in bringing suit against any party
hereto, and consent that, without discharging any of them, the time of payment
may be extended an unlimited number of times before or after maturity without
notice.  The Bank, shall not be required to pursue any party hereto, including
any guarantor, or to exercise any rights against any collateral herefor before
exercising any other such rights.

    The obligations evidenced hereby may from time to time be evidenced by
another note or notes given in substitution, renewal or extension hereof.  Any
security interest or mortgage which secures the obligations evidenced hereby
shall remain in full force and effect notwithstanding any such substitution,
renewal, or extension.


                                      -3-





    The captions used herein are for references only and shall not be deemed a
part of this Note.  If any of the terms or provisions of this Note shall be
deemed unenforceable, the enforceability of the remaining terms and provisions
shall not be affected.  This Note shall be governed by and construed in
accordance with the law of the State of Ohio.

WAIVER OF RIGHT TO TRIAL BY JURY

    THE UNDERSIGNED ACKNOWLEDGES THAT, AS TO ANY AND ALL DISPUTES THAT MAY
ARISE BETWEEN THE UNDERSIGNED AND THE BANK, THE COMMERCIAL NATURE OF THE
TRANSACTION OUT OF WHICH THIS NOTE ARISES WOULD MAKE ANY SUCH DISPUTE UNSUITABLE
FOR TRIAL BY JURY.  ACCORDINGLY, THE UNDERSIGNED HEREBY WAIVES ANY RIGHT TO
TRIAL BY JURY AS TO ANY AND ALL DISPUTES THAT MAY ARISE RELATING TO THIS NOTE OR
TO ANY OF THE OTHER INSTRUMENTS OR DOCUMENTS EXECUTED IN CONNECTION HEREWITH.

WARRANT OF ATTORNEY

    The undersigned authorizes any attorney at law to appear in any Court of
Record in the State of Ohio or in any state or territory of the United States
after the above indebtedness becomes due, whether by acceleration or otherwise,
to waive the issuing and service of process, and to confess judgment against the
undersigned in favor of the Bank for the amount then appearing due together with
costs of suit, and thereupon to waive all errors and all rights of appeal and
stays of execution.  The foregoing warrant of attorney shall survive any such
judgment and should any such judgment be vacated for any reason, the foregoing
warrant of attorney nevertheless may thereafter be utilized for obtaining
judgment or judgments.


                                      -4-




WARNING -- BY SIGNING THIS PAPER YOU GIVE UP YOUR RIGHT TO NOTICE AND COURT
TRIAL.  IF YOU DO NOT PAY ON TIME A COURT JUDGMENT MAY BE TAKEN AGAINST YOU
WITHOUT YOUR PRIOR KNOWLEDGE AND THE POWERS OF A COURT CAN BE USED TO COLLECT
FROM YOU REGARDLESS OF ANY CLAIMS YOU MAY HAVE AGAINST THE CREDITOR WHETHER FOR
RETURNED GOODS,  FAULTY GOOD,  FAILURE ON HIS PART TO COMPLY WITH THE AGREEMENT,
OR ANY OTHER CAUSE.

Signed and acknowledged in the         HICKOK INCORPORATED f/k/a
presence of:                           THE HICKOK ELECTRICAL
                                       INSTRUMENT COMPANY

- ------------------------------
Print Name: E. Nowakowski
          -------------------


                                       By: /s/ Robert L. Bauman
- ------------------------------            ------------------------------
Print Name: Karen Gaul                     Robert L. Bauman, President
                                           and Chief Executive Officer



This instrument prepared by:

Anne T. Corrigan, Esq.
McDonald, Hopkins, Burke & Haber Co., L.P.A.
2100 Bank One Center
600 Superior Avenue, E.
Cleveland, Ohio 44114-2653
(216) 348-5400

                                        - 5 -