CIRCUIT RESEARCH LABS INC
EXHIBIT 10.3 - AMENDED AND RESTATED TRANCHE B NOTE
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<TYPE>EX-10
<SEQUENCE>5
<FILENAME>noteb.txt
<DESCRIPTION>EXHIBIT 10.3 - AMENDED AND RESTATED TRANCHE B NOTE
<TEXT>
                                  EXHIBIT 10.3

                       AMENDED AND RESTATED TRANCHE B NOTE


$3,500,000                                                      October 01, 2001


     This Amended and Restated Tranche B Note (this "Note") amends and restates,
and carries forward, and without interruption or novation, the indebtedness
evidenced by, the Tranche B Note, dated May 31, 2000 (the "Original Tranche B
Note"), and issued by CRL Systems, Inc., a Nevada corporation (the "Borrower")
in favor of Harman Acquisition Corp. (f/k/a Orban, Inc.), a Delaware corporation
(the "Lender").

     FOR VALUE RECEIVED, the Borrower hereby unconditionally promises to pay to
the order of the Lender, at the Lender's Payment Office, in lawful money of the
United States of America and in immediately available funds, the principal
amount of Three Million Five Hundred Thousand Dollars ($3,500,000) ON DEMAND, OR
IF NO DEMAND IS SOONER MADE, ON THE DATES AND IN THE AMOUNTS SPECIFIED IN THE
CREDIT AGREEMENT.  The Borrower further agrees to pay interest in like money at
such office on the unpaid principal amount hereof from time to time outstanding,
at the rates specified in the Credit Agreement ON DEMAND, OR IF NO DEMAND IS
SOONER MADE, ON THE DATES SPECIFIED IN THE CREDIT AGREEMENT.  Notwithstanding
anything to the contrary set forth in the Original Tranche B Note or the Credit
Agreement, dated May 31, 2000, as amended by the First Extension Agreement,
dated September 29, 2000, the Second Extension Agreement, dated November 28,
2000, the Third Extension Agreement, dated January 18, 2001, the Fourth
Extension Agreement, dated February 22, 2001, the Tranche A Extension Agreement,
dated March 30, 2001, the Tranche A Note and Tranche B Note Extension Agreement,
dated April 16, 2001 and the Amendment to the Credit Agreement, dated as of
October 01, 2001 and as further amended, restated, supplemented or otherwise
modified from time to time (collectively, the "Credit Agreement"), the principal
amount of this Note together with all interest accrued thereon shall be payable
ON DEMAND, REGARDLESS OF WHETHER OR NOT A DEFAULT OR EVENT OF DEFAULT EXISTS
UNDER THE CREDIT AGREEMENT.

     The holder of this Note is authorized to endorse on the schedule annexed
hereto and made a part hereof or on a continuation thereof which shall be
attached hereto and made a part hereof the date and amount of each payment or
prepayment of principal thereof.  Each such endorsement shall constitute prima
facie evidence of the accuracy of the information endorsed.  The failure to make
any such endorsement (or any error therein) shall not affect the obligations of
the Borrower in respect of this Note or the Credit Agreement.

     This Note (a) is the Tranche B Note referred to in the Credit Agreement,
(b) is subject to the provisions of the Credit Agreement and (c) is subject to
optional and mandatory prepayment in whole or in part as provided in the Credit
Agreement.  This Note is secured and guaranteed as provided in the Security
Documents.  Reference is hereby made to the Security Documents for a description
of the properties and assets in which a security interest has been granted, the
nature and extent of the security and the guarantees, the terms and conditions
upon which the security interests and each guarantee were granted and the rights
of the holder of this Note in respect thereof.

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     Without impairing the demand nature of this Note, upon the occurrence of
any one or more Events of Default, all amounts then remaining unpaid on this
Note shall become, or may be declared to be, immediately due and payable, all as
provided in the Credit Agreement.

     All parties now and hereafter liable with respect to this Note, whether
maker, principal, surety, guarantor, endorser or otherwise, hereby waive
presentment, demand, protest, notice of acceleration and intent to accelerate,
and all other notices of any kind.

     Unless otherwise defined herein, terms defined in the Credit Agreement and
used herein shall have the meanings given to them in the Credit Agreement.

     THIS NOTE SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE
WITH, THE LAW OF THE STATE OF NEW YORK, WITHOUT REGARD TO THE PRINCIPLES OF
CONFLICT OF LAWS THEREOF EXCEPT SECTIONS 5-1401 AND 5-1402 OF THE NEW YORK
GENERAL OBLIGATIONS LAW.

                                 CRL SYSTEMS, INC.


                                 /s/ C. Jayson Brentlinger
                                 ------------------------------------
                                 C. Jayson Brentlinger, President and
                                 Chairman of the Board






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                           Schedule to Tranche B Note

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Date of Principal   Amount of           Unpaid Principal    Notation Made By
Payment on Note     Principal Paid      Balance of Note
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