Execution Copy

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Fourth AMENDMENT TO REVOLVING CREDIT AGREEMENT

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This Fourth Amendment to the Revolving Credit Agreement ("Fourth Amendment") is
entered as of November 29, 2001 by and among (i) Burtek Systems, Inc., a
Canadian corporation, Richardson Electronics Canada, Ltd., a Canadian
corporation; (ii) Richardson Electronics Limited f/k/a Richardson Electronics
(Europe) Ltd., an English limited liability company; (iii) RESA, SNC, a French
partnership, Richardson Electronique SNC, a French partnership, Richardson
Electronics Iberica, S.A., a Spanish corporation, Richardson Electronics GmbH, a
German limited liability company, Richardson Electronics Benelux B.V., a Dutch
private limited liability company, (iv) Richardson Sweden Holding AB, a Swedish
corporation (the "Borrowers"), the lenders from time to time parties hereto
(each, a "Lender" and collectively, the "Lenders"), Bank One, N.A. London Branch
as Eurocurrency Agent (the "Eurocurrency Agent"), Bank One, N.A., Canada Branch,
as Canada Agent (the "Canada Agent") (the Eurocurrency Agent and the Canada
Agent are collectively referred to as the "Funding Agents" and each individually
a "Funding Agent"), and American National Bank and Trust Company of Chicago, as
administrative agent (in such capacity, the "Administrative Agent").

          WHEREAS, the Borrowers, the Lenders, the Eurocurrency Agent, the
Canada Agent, and the Administrative Agent have entered into that certain
Revolving Credit Agreement, dated July 1, 2000 (as amended or modified from time
to time, the "Agreement"); all capitalized terms stated in this Fourth Amendment
and not defined herein shall have the same meaning as set forth in the
Agreement;

          WHEREAS, the Lenders have made Loans to the Borrowers pursuant to the
Agreement as amended by a First Amendment entered into as of February 13, 2001,
further amended by a letter agreement dated July 23, 2001, and further amended
by a Third Amendment entered into as of August 31, 2001;

          WHEREAS, the Lenders, the Guarantor and the Borrowers have agreed to
modify the financial covenants to be undertaken by the Guarantor pursuant to the
Guaranty; and

          WHEREAS, the Lenders, the Guarantor and the Borrowers have agreed to
modify the pricing schedule applicable to the Facilities and otherwise amend
certain terms of the Agreement as set forth herein.

Now, therefore, in consideration of the fulfillment of each of the terms and
conditions set forth herein, the parties hereto agree as follows:

Section 1. Amendment to Agreement: Amendment to the Pricing Schedule.

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> The Pricing Schedule shall be deleted in its entirety and replaced by the
> Pricing Schedule appearing as Annex A to this Fourth Amendment.

Section 2. Reaffirmation Of Guaranty

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The Guarantor hereby confirms that it is familiar with the terms of the
Agreement and with the financial condition of each Borrower and, after giving
effect to all of the terms and conditions contained in this Fourth Amendment,
including, without limitation, the amendment to the Pricing Schedule and the
incorporation by reference in the Guaranty of certain amended financial
covenants of the Domestic Facility, the Guaranty remains in full force and
effect, and includes all obligations of each Borrower under the Agreement, as
amended by this Fourth Amendment. The reaffirmation of the Guaranty contained in
this Section 2 is not intended to affect or limit the continuing and unlimited
nature of the Guaranty and all other terms of the Guaranty are hereby reaffirmed
and remain in full force and effect.

Section 3. Conditions Precedent

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The effectiveness of this Fourth Amendment is conditioned upon:

> a. The representations and warranties contained in Section 4 being true and
> correct for each Borrower and for the Guarantor as of the date hereof except
> to the extent that any such representation and warranty is stated to relate
> solely to an earlier date, in which case such representation or warranty shall
> be true and correct as of such earlier date.
> 
> b. Delivery by each of the Borrowers, the Guarantor and the required Lenders
> of a duly executed original of this Fourth Amendment.
> 
> c. Payment of the expenses as set forth in Section 8 hereof.

Section 4. Representations and Warranties.

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Each Borrower and the Guarantor represents and warrants to the Administrative
Agent and the Lenders that:

> a. The representations and warranties contained in the Agreement and in the
> Guaranty are true and correct in all material respects, on and as of the date
> hereof as if such representations and warranties had been made on and as of
> the date hereof, such representations and warranties being incorporated herein
> by this reference to "Documents" or terms of like import shall include this
> Fourth Amendment and all documents, instruments and agreements entered into
> pursuant thereto; and
> 
> b. Each Borrower and the Guarantor is in compliance with all the terms and
> provisions set forth, respectively, in the Agreement and in the Guaranty and
> no Default or Unmatured Default has occurred and is continuing.

Section 5. Full Force and Effect.

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Except as expressly provided herein, the Documents shall continue in full force
and effect in accordance with the provisions thereof on the date hereof. As used
in the Agreement, the terms "Agreement", "this Agreement", "herein",
"hereafter", "hereto", "hereof", and words of similar import, shall, unless the
context otherwise requires, mean the Agreement as amended by this Fourth
Amendment.

Section 6. APPLICABLE LAW.

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THIS FOURTH AMENDMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE
LAWS OF THE STATE OF ILLINOIS.

Section 7. Counterparts.

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This Fourth Amendment may be executed in two or more counterparts, each of which
shall constitute an original, but all of which when taken together shall
constitute one instrument. One or more counterparts of this Fourth Amendment may
be delivered by facsimile, with the intention that each such delivery shall the
same effect as delivery of an original counterpart hereof.

Section 8. Expenses.

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The Guarantor agrees to pay all out-of-pocket expenses incurred by the Agent in
connection with the preparation, execution and delivery of this Fourth Amendment
and the other documents incident hereto, including, but not limited to, the
reasonable fees and disbursements of Baker & McKenzie, counsel for the
Administrative Agent.

Section 9. Headings.

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The headings of this Fourth Amendment are for the purposes of reference only and
shall not affect the construction of this Fourth Amendment.

 

IN WITNESS WHEREOF, the parties hereto have caused this Fourth Amendment to be
duly executed by their duly authorized officers, all as of the date and year
first above written.

BORROWERS:   ADMINISTRATIVE AGENT:
BURTEK SYSTEMS, INC.

BY: /S/ WILLIAM J. GARRY

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TITLE: TREASURER

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  AMERICAN NATIONAL BANK AND TRUST
COMPANY OF CHICAGO

BY:

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TITLE:

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RICHARDSON ELECTRONICS CANADA, LTD.

BY: /S/ WILLIAM J. GARRY

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TITLE: TREASURER

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FUNDING AGENTS:

BANK ONE, N.A., London Branch

BY:

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TITLE:

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RICHARDSON ELECTRONICS LIMITED
(f/k/a RICHARDSON ELECTRONICS (EUROPE), LTD.)

BY: /S/ WILLIAM J. GARRY

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TITLE: DIRECTOR

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BANK ONE, N.A., CANADA BRANCH
(Successor by assignment from Bank One Canada)

BY:

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TITLE:

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RESA, SNC

BY: /S/ WILLIAM J. GARRY

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TITLE: CO-GERANT

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LENDERS:

HARRIS TRUST AND SAVINGS BANK

BY:

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TITLE:

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RICHARDSON ELECTRONIQUE SNC

BY: /S/ WILLIAM J. GARRY

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TITLE: CO-GERANT

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BANK OF MONTREAL

BY:

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TITLE:

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RICHARDSON ELECTRONICS IBERICA, S.A.

BY: /S/ WILLIAM J. GARRY

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TITLE: MANAGING DIRECTOR, PRESIDENTE

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NATIONAL CITY BANK, CANADA BRANCH
(successor by assignment from National City Canada, Inc.)

BY:

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TITLE:

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RICHARDSON ELECTRONICS GMBH

BY: /S/ WILLIAM J. GARRY

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TITLE: GESCHAFTSFUHRER

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NATIONAL CITY BANK

BY:

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TITLE:

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RICHARDSON ELECTRONICS BENELUX B.V.

BY: /S/ WILLIAM J. GARRY

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TITLE: MANAGING & SUPERVISING DIRECTOR

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LASALLE BANK NATIONAL ASSOCIATION

BY:

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TITLE:

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RICHARDSON SWEDEN HOLDING AB

BY: /S/ WILLIAM J. GARRY

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TITLE: DIRECTOR

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LASALLE BUSINESS CREDIT,
a division of ABN AMRO Bank Canada

BY:

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TITLE:

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BANK ONE, N.A., London Branch

BY:

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TITLE:

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BANK ONE, N.A., CANADA BRANCH
(Successor by assignment from Bank One Canada)

BY:

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TITLE:

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BANK ONE CAPITAL MARKETS LIMITED
(f/k/a First Chicago Ltd.)

BY:

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TITLE:

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GUARANTOR:    

Acknowledged and agreed to or of the day and year first above written.

RICHARDSON ELECTRONICS, LTD.

BY:

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TITLE:

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ANNEX A

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PRICING SCHEDULE

APPLICABLE MARGIN LEVEL I
STATUS LEVEL II
STATUS LEVEL III
STATUS LEVEL IV
STATUS LEVEL V
STATUS Eurocurrency Rate 1.25 % 1.50 % 1.75 % 2.00 % 2.25 % BA Rate 1.25 % 1.50
% 1.75 % 2.00 % 2.25 %

For the purposes of this Schedule, the following terms have the following
meanings, subject to the final paragraph of this Schedule:

"Financials" means the annual or quarterly financial statements of the Guarantor
delivered pursuant to the Guaranty.

"Level I Status" exists at any date if, as of the last day of the fiscal quarter
of the Guarantor referred to in the most recent Financials, the Senior Funded
Debt to Cash Flow Ratio is less than 1.50 to 1.00.

"Level II Status" exists at any date if, as of the last day of the fiscal
quarter of the Guarantor referred to in the most recent Financials,

> (i) the Guarantor has not qualified for Level I Status and
> (ii) the Senior Funded Debt to Cash Flow Ratio is less than or equal to 2.00
> to 1.00.

"Level III Status" exists at any date if, as of the last day of the fiscal
quarter of the Guarantor referred to in the most recent Financials,

> (i) the Guarantor has not qualified for Level I Status or Level II Status and
> (ii) the Senior Funded Debt to Cash Flow Ratio is less than 2.50 to 1.00.

"Level IV Status" exists at any date if, as of the last day of the fiscal
quarter of the Guarantor referred to in the most recent Financials,

> (i) the Guarantor has not qualified for Level I Status, Level II Status or
> Level III Status and
> (ii) the Senior Funded Debt to Cash Flow Ratio is less than or equal to 3.00
> to 1.00."

"Level V Status" exists at any date if the Guarantor has not qualified for Level
I Status, Level II Status, Level III Status or Level IV Status."

"Status" means, at any date of determination, whichever of Level I Status, Level
II Status, Level III Status, Level IV Status, or Level V Status exists at such
time.

The Applicable Margin set forth above shall be subject to adjustment (upwards or
downwards, as appropriate) based on the Guarantor's Status as at the end of each
fiscal quarter in accordance with the table set forth above. The Guarantor's
Status as at the last day of each fiscal quarter shall be determined from the
then most recent annual or quarterly financial statements of the Guarantor
delivered by the Guarantor pursuant to the Guaranty and the Compliance
Certificate delivered by the Borrower pursuant to the Guaranty. The adjustment,
if any, to the Applicable Margin shall be effective commencing five (5) days
after the delivery to the Lenders of such financial statements and Compliance
Certificate. In the event that the Guarantor shall at any time fail to furnish
to the Lenders such financial statements and Compliance Certificate within the
time limitations specified by the Guaranty, then the maximum Applicable Margin
shall apply from the date of such failure until the fifth (5th) day after such
financial statements and Compliance Certificate are so delivered.
Notwithstanding anything to the contrary contained herein, the Guarantor's
Status from January 15, 2002 to and including the later of (i) May 31, 2002 or
(ii) five (5) days after the delivery to the Lenders of the May 31, 2002
financial statements of the Guarantor accompanied by a current Compliance
Certificate, shall be deemed to be Level V Status.