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                                                                   EXHIBIT 10.15

                   AMENDED AND RESTATED REVOLVING CREDIT NOTE

$13,250,000                      Dallas, Texas                  October 16, 1995

      FOR VALUE RECEIVED, the undersigned (together, "Borrower"), hereby jointly
and severally promise to pay to the order of SHAWMUT CAPITAL CORPORATION a
Connecticut corporation, successor by assignment to Barclays Business Credit,
Inc. ("Lender"), on or before December 31, 1998, the lesser of (i) THIRTEEN
MILLION TWO HUNDRED AND FIFTY THOUSAND AND NO/100 DOLLARS ($13,250,000) or (ii)
fifty percent (50%) of the unpaid principal amount of all advances made by
Lender to Borrower as "Revolving Credit Loans" under the Loan Agreement referred
to below.

      Borrower also promises to pay interest on the unpaid principal amount of
this Note at the rates and at the times which shall be determined in accordance
with the provisions of the Loan and Security Agreement dated as of December 15,
1993, by and among Borrower and Lender (said agreement, as it may be amended,
restated, supplemented or otherwise modified from time to time, being herein
called the "Loan Agreement"). Capitalized terms used herein without definition
shall have the meanings set forth in the Loan Agreement.

      This Note is a "Revolving Credit Note" issued pursuant to Section 2.1 of,
and is entitled to the benefits of, and subject to the provisions of, the Loan
Agreement to which reference is hereby made for a more complete statement of the
terms and conditions under which Revolving Credit Loans evidenced hereby are
made and are to be repaid.

      All payments of principal and interest due in respect of this Note shall
be made without deduction, defense, set off or counterclaim, in lawful money of
the United States of America, and in same day funds and delivered to Lender by
wire transfer to Lender's account, ABA No. 0710-0028-8, Account No. 183-8549, at
Harris Trust and Savings Bank (Chicago, Illinois), Reference: Shawmut Capital
Corporation-Dallas, re: Lowrance Electronics, Inc. or at such other place as
shall be designated by notice for such purpose in accordance with the terms of
the Loan Agreement.

      No agreements, conditions, provisions or stipulations contained in this
Note or any other Loan Documents or any other instrument, document or agreement
between Borrower and Lender, or default of Borrower, or the exercise by Lender
of the right to accelerate the payment of the maturity of principal and
interest, or to exercise any option whatsoever contained in any Loan Documents
or any other agreement between Borrower and Lender, or the arising of any
contingency whatsoever, shall entitle Lender to contract for, charge or receive,
in any event, interest exceeding the Maximum Legal Rate. In no event shall
Borrower be obligated to pay interest exceeding such Maximum Legal Rate and all
agreements, conditions or stipulations, if any, which may in any event or
contingency whatsoever operate to bind, obligate or compel Borrower to pay a
rate of interest exceeding the Maximum Legal Rate, shall be without binding
force or effect, at law or in equity, to the extent only of the excess of
interest over such

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Maximum Legal Rate. In the event any interest is contracted for, charged or
received in excess of the Maximum Legal Rate ("Excess"), Borrower acknowledges
and stipulates that any such contract, charge or receipt shall be the result of
an accident and bona fide error, and that any Excess received by Lender shall be
applied, first, to reduce the principal then unpaid hereunder; second, to reduce
the other Obligations; and third, returned to Borrower, it being the intention
of the parties hereto not to enter at any time into a usurious or otherwise
illegal relationship. Borrower recognizes that, with fluctuations in the Base
Rate and the Maximum Legal Rate, such a result could inadvertently occur. By the
execution of this Note, Borrower covenants that (i) the credit or return of any
Excess shall constitute the acceptance by Borrower of such Excess, and (ii)
Borrower shall not seek or pursue any other remedy, legal or equitable, against
Lender, based in whole or in part upon contracting for, charging or receiving of
any interest in excess of the maximum authorized by applicable law. For the
purpose of determining whether or not any Excess has been contracted for,
charged or received by Lender, all interest at any time contracted for, charged
or received by Lender in connection with this Agreement shall be amortized,
prorated, allocated and spread in equal parts during the entire term of this
Note.

      Lender and any subsequent holder of this Note agrees that before disposing
of this Note or any part hereof it will make a notation hereon of all principal
payments previously made hereunder and of the date to which interest hereon has
been paid; provided, however, that the failure to make a notation of any payment
made on this Note shall not limit or otherwise affect the obligation of Borrower
with respect to payments of principal or interest on this Note.

      This Note is subject to voluntary prepayment by Borrower as provided in
the Loan Agreement.

      Upon the occurrence of an Event of Default, the unpaid balance of the
principal amount of this Note may become, or may be declared to be, due and
payable in the manner, upon the conditions and with the effect provided in the
Loan Agreement.

      The terms of this Note are subject to amendment only in the manner
provided in the Loan Agreement.

      Borrower promises to pay pursuant to Section 12.4 of the Loan Agreement
all costs and expenses, including reasonable attorneys' fees, incurred in the
collection and enforcement of the Note. Borrower and endorsers of this Note
hereby consent to renewals and extensions of time at or after the maturity
hereof, without notice, and hereby waive diligence, presentment, protest, demand
and notice of every kind, including, without limitation, notices of default,
intent to accelerate and acceleration (except such notices as may be required
under the Loan Agreement).

      Wherever possible each provision of this Note shall be interpreted in such
a manner as to be effective and valid under applicable law, but if any provision
of this Note shall be prohibited or invalid under applicable law, such provision
shall be ineffective to the extent of such prohibition or invalidity without
invalidating the remainder of such provision or remaining provisions of this
Note. No delay or failure on the part of Lender in the exercise of any right or
remedy hereunder shall operate as a waiver thereof, nor as an acquiescence under
any default, nor

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shall any single or partial exercise by Lender of any right or remedy preclude
any other rights or remedy. Lender, at its option, may enforce its rights
against any collateral securing this Note without enforcing its rights against
Borrower, any guarantor of the indebtedness evidenced hereby or any other
property or indebtedness due or to become due to Borrower. Borrower agrees that,
without releasing or impairing Borrower's liability hereunder, Lender may at any
time release, surrender, substitute or exchange any collateral securing this
Note and may at any time release any party primarily or secondarily liable for
the indebtedness evidenced by this Note.

      TIME IS OF THE ESSENCE WITH RESPECT TO ALL OF BORROWER'S OBLIGATIONS AND
AGREEMENTS UNDER THIS NOTE.

      THE LOAN AGREEMENT AND THIS NOTE SHALL BE GOVERNED BY, AND SHALL BE
CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF TEXAS.

      This Note is given in renewal, modification and extension, but not in
extinguishment or novation, of that certain Secured Promissory Note dated
December 15, 1993 in the original principal amount of $13,250,000, executed by
Lowrance Electronics, Inc., LEI Extras, Inc., Lowrance Contracts, Inc. and
Lowrance Australia Pty Limited.

      IN WITNESS WHEREOF, Borrower has caused this Note to be executed and
delivered by its duly authorized officer, as of the day and year first written
above.

                                        LOWRANCE ELECTRONICS, INC.

                                        By: /s/ Darrell J. Lowrance
                                            ----------------------------------
                                            Darrell J. Lowrance, President

                                        LEI EXTRAS, INC.

                                        By: /s/ Steven L. Schneider
                                            ----------------------------------
                                            Steven L. Schneider, President

                                        LOWRANCE CONTRACTS, INC.

                                        By: /s/ Terry R. Nimmo
                                            ----------------------------------
                                            Terry R. Nimmo, Vice President

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                                        The Common Seal of
                                        LOWRANCE AUSTRALIA PTY LIMITED
                                        was affixed in accordance with its
                                        Articles of Association in the
                                        presence of:

                                        By: /s/ Darrell J. Lowrance
                                            ----------------------------------
                                            Darrell J. Lowrance, Director

      [SEAL]

                                        By: /s/ Steven L. Schneider
                                            ----------------------------------
                                            Steven L. Schneider, Director

                                        SEA ELECTRONICS, INC.

                                        By: /s/ Steven L. Schneider
                                            ----------------------------------
                                            Steven L. Schneider, President

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