RICHARDSON ELECTRONICS LTD/DE
S-2, 1998-03-31
ELECTRONIC PARTS & EQUIPMENT, NEC
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<PAGE>
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 31, 1998
                                                    REGISTRATION NO. ___________
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                       ----------------------------------
 
                                    FORM S-2
 
                             REGISTRATION STATEMENT
 
                                     UNDER
 
                           THE SECURITIES ACT OF 1933
                       ----------------------------------
 
                          RICHARDSON ELECTRONICS, LTD.
 
                (Name of registrant as specified in its charter)
 
<TABLE>
<S>                              <C>
           DELAWARE                 36-2096643
 (State or other jurisdiction    (I.R.S. Employer
                                  Identification
                                       No.)
     of incorporation or
        organization)
</TABLE>
 
                             40W267 KESLINGER ROAD
                                LAFOX, IL 60147
                                 (630) 208-2200
         (Address, including zip code, and telephone number, including
             area code of registrant's principal executive office)
 
                                WILLIAM G. SEILS
                          RICHARDSON ELECTRONICS, LTD.
                             40W267 KESLINGER ROAD
                                LAFOX, IL 60147
                                 (630) 208-2370
                               FAX (630) 208-2950
                              E-MAIL [email protected]
           (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)
                                 with copies to
 
             SCOTT HODES                           TIMOTHY R. M. BRYANT
            DAVID S. GUIN                        MCDERMOTT, WILL & EMERY
            ROSS & HARDIES                  227 WEST MONROE STREET, SUITE 3100
        150 N. MICHIGAN AVENUE                    CHICAGO, IL 60606-5096
        CHICAGO, IL 60601-7567                        (312) 372-2000
            (312) 558-1000                          FAX (312) 984-3669
          FAX (312) 750-8600                      E-MAIL [email protected]
  E-MAIL [email protected]
 
        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
 
As soon as practicable after this Registration Statement is declared effective.
 
If any of the securities being registered on this Form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities act of
1933, check the following box.  / /
 
If the registrant elects to deliver its latest annual report to security
holders, or a complete and legible facsimile thereof, pursuant to Item 11(a)(1)
of this Form, check the following box.  / /
 
If this Form is filed to register additional securities for an offering pursuant
to Rule 462(b) under the Securities Act, please check the following box and list
the Securities Act registration statement number of the earlier effective
registration statement for the same offering.   / /
 
If this Form is a post-effective amendment filed pursuant to Rule 462(c) under
the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  / /
 
If this form is a post-effective amendment filed pursuant to Rule 462(d) under
the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  / /
 
If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box.  / /
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
            TITLE OF EACH                                    PROPOSED MAXIMUM    PROPOSED MAXIMUM
         CLASS OF SECURITIES                AMOUNT TO         OFFERING PRICE    AGGREGATE OFFERING      AMOUNT OF
           TO BE REGISTERED               BE REGISTERED        PER UNIT (2)         PRICE (2)        REGISTRATION FEE
<S>                                     <C>                 <C>                 <C>                 <C>
                                         3,450,000 SHARES
COMMON STOCK, $.05 PAR VALUE                   (1)               $13 3/8           $46,143,750          $13,612.41
</TABLE>
 
(1) Includes an option to purchase 450,000 shares granted to the Underwriters to
    cover over-allotments.
 
(2) Based on last sale price of Registrant's Common Stock on March 27, 1998
    solely for purposes of calculating the registration fee pursuant to Rule
    457(c).
 
THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES
AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL FILE
A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION STATEMENT
SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF THE
SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT BECOMES
EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE SECURITIES
IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>
                   SUBJECT TO COMPLETION DATED MARCH 31, 1998
 
                                3,000,000 SHARES
 
                                     [LOGO]
 
                                  COMMON STOCK
                                 -------------
 
    OF THE 3,000,000 SHARES OF COMMON STOCK OFFERED HEREBY (THE "OFFERING"),
1,500,000 SHARES OF COMMON STOCK ARE BEING SOLD BY RICHARDSON ELECTRONICS, LTD.
(THE "COMPANY" OR "RICHARDSON") AND 1,500,000 SHARES ARE BEING SOLD BY A
STOCKHOLDER OF THE COMPANY (THE "SELLING STOCKHOLDER"). THE COMPANY WILL NOT
RECEIVE ANY OF THE PROCEEDS FROM THE SALE OF SHARES BY THE SELLING STOCKHOLDER.
SEE "PRINCIPAL AND SELLING STOCKHOLDERS."
 
    THE COMMON STOCK IS QUOTED AND TRADED ON THE NASDAQ NATIONAL MARKET UNDER
THE SYMBOL "RELL." ON MARCH 27, 1998, THE LAST REPORTED SALE PRICE OF THE COMMON
STOCK WAS $13 3/8 PER SHARE. SEE "PRICE RANGE OF COMMON STOCK."
 
                              -------------------
 
 SEE "RISK FACTORS" BEGINNING ON PAGE 8 OF THIS PROSPECTUS FOR A DISCUSSION OF
      CERTAIN FACTORS THAT SHOULD BE CONSIDERED BY PROSPECTIVE INVESTORS.
                               -----------------
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
     SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
      PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.  ANY
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
                                                                                                       PROCEEDS TO
                                                               UNDERWRITING        PROCEEDS TO           SELLING
                                         PRICE TO PUBLIC         DISCOUNT           COMPANY(1)         STOCKHOLDER
<S>                                     <C>                 <C>                 <C>                 <C>
Per Share.............................          $                   $                   $                   $
Total (2).............................          $                   $                   $                   $
</TABLE>
 
(1) Before deducting estimated expenses of $400,000, which are payable by the
    Company.
 
(2) The Company and the Selling Stockholder have granted the Underwriters a
    30-day option to purchase from them pro rata up to 450,000 additional shares
    of Common Stock on the same terms and conditions as set forth above solely
    to cover over-allotments, if any. If such option is exercised in full, the
    total Price to Public, Underwriting Discount, Proceeds to Company and
    Proceeds to Selling Stockholder will be $    , $    , $    and $    ,
    respectively. The Company will not receive any of the proceeds from the sale
    of shares of Common Stock by the Selling Stockholder. See "Underwriting" and
    "Principal and Selling Stockholders."
 
                            ------------------------
 
    THE SHARES OF COMMON STOCK ARE OFFERED BY THE UNDERWRITERS, SUBJECT TO PRIOR
SALE, WHEN, AS AND IF DELIVERED TO AND ACCEPTED BY THEM, AND SUBJECT TO CERTAIN
OTHER CONDITIONS. IT IS EXPECTED THAT DELIVERY OF THE SHARES OF COMMON STOCK
WILL BE MADE ON OR ABOUT                     , 1998 AT THE OFFICES OF CLEARY
GULL REILAND & MCDEVITT INC., MILWAUKEE, WISCONSIN.
 
CLEARY GULL REILAND & MCDEVITT INC.
 
                                             MCDONALD & COMPANY SECURITIES, INC.
 
               The date of this Prospectus is             , 1998.
<PAGE>
                           [PICTURES TO BE INSERTED]
 
Electron tubes for industrial, broadcast, avionics and medical applications.
 
Radio frequency and microwave components for telecommunications and
power-semiconductors for industrial power conversion applications.
 
Cathode ray tubes, monitors and flat panel displays for data display, marine,
medical, radar and avionics applications.
 
Closed circuit television (CCTV) systems and related security products for
industrial and commercial security and surveillance applications.
 
At the top of the page:
 
Engineered Solutions for a Wide Range of Electronic Products
 
                           [PICTURES TO BE INSERTED]
 
At the bottom of the page:
 
Richardson serves over 80,000 active customers worldwide
 
Over 50% of sales are international.
 
    CERTAIN PERSONS PARTICIPATING IN THIS OFFERING MAY ENGAGE IN TRANSACTIONS
THAT STABILIZE, MAINTAIN, OR OTHERWISE AFFECT THE PRICE OF THE COMMON STOCK,
INCLUDING OVER-ALLOTMENTS, STABILIZING TRANSACTIONS, SYNDICATE SHORT COVERING
TRANSACTIONS, AND PENALTY BIDS. FOR A DESCRIPTION OF THESE ACTIVITIES, SEE
"UNDERWRITING."
 
    IN CONNECTION WITH THIS OFFERING, CERTAIN UNDERWRITERS (AND SELLING GROUP
MEMBERS) MAY ENGAGE IN PASSIVE MARKET MAKING TRANSACTIONS IN THE COMMON STOCK ON
THE NASDAQ NATIONAL MARKET IN ACCORDANCE WITH RULE 103 OF REGULATION M UNDER THE
SECURITIES EXCHANGE ACT OF 1934. SEE "UNDERWRITING."
<PAGE>
                               PROSPECTUS SUMMARY
 
    THE FOLLOWING SUMMARY IS QUALIFIED IN ITS ENTIRETY BY THE MORE DETAILED
INFORMATION AND THE CONSOLIDATED FINANCIAL STATEMENTS AND NOTES THERETO,
INCLUDED OR INCORPORATED BY REFERENCE IN THIS PROSPECTUS. EXCEPT AS OTHERWISE
INDICATED, (I) THE TERM "COMPANY" OR "RICHARDSON" REFERS TO RICHARDSON
ELECTRONICS, LTD. AND ITS SUBSIDIARIES, AND (II) THE INFORMATION IN THIS
PROSPECTUS ASSUMES THAT THE UNDERWRITERS' OVER-ALLOTMENT OPTION WILL NOT BE
EXERCISED.
 
    THE COMPANY'S FISCAL YEAR ENDS ON THE FRIDAY CLOSEST TO THE END OF MAY OF
EACH YEAR, RESULTING IN EITHER A 52 OR 53 WEEK YEAR. REFERENCES TO FISCAL YEARS
REFER TO THE FISCAL YEAR ENDING IN THAT CALENDAR YEAR; FOR EXAMPLE, "FISCAL
1997" REFERS TO THE COMPANY'S FISCAL YEAR ENDING MAY 30, 1997. FOR CONVENIENCE,
FISCAL YEARS ARE IDENTIFIED AS IF THE YEAR ENDED ON MAY 31.
 
                                  THE COMPANY
 
    Richardson Electronics, Ltd. is a specialized international distributor of
electronic components, equipment and assemblies primarily for niche industrial
applications. Its product offerings include electron tubes, microwave
generators, radio frequency ("RF") and microwave components, power
semiconductors, data display monitors and electronic security products and
systems. These products are used to control, switch or amplify electrical power
or signals, or as display, recording or alarm devices. They are used in a wide
variety of industrial, communications, medical and scientific applications. The
Company derives over 60% of its sales from components used in replacement or
repair applications, in contrast to components used in original equipment.
Richardson differentiates itself by providing engineered solutions to its
customers. Its capabilities extend beyond simple product distribution to include
specialty product manufacturing and systems integration and include value-added
services such as component assembly, prototype design and manufacture, testing,
kitting and logistics. In fiscal 1997, the Company derived over 45% of its sales
from products that it electronically or physically modified or sold under its
own brand names.
 
    Richardson serves over 80,000 active customers in 130 countries, including
over 40% of the companies in the FORTUNE 500. The Company's salesforce operates
from 88 locations throughout the world and services orders from 29 stocking
locations. Richardson's commitment is to provide excellent customer service
through inventory availability, cost-effective product alternatives and timely
delivery. More than 80% of orders received by 6:00 p.m. are shipped complete the
same day. In the quarter ended February 28, 1998, 51.7% of the Company's sales
were international. The Company sells over 800 vendor lines which encompass more
than 300,000 different products. Richardson sells through its technical sales
staff and field engineers, telemarketing, product catalogs, the Company's web
site and electronic data interchange.
 
    The Company was founded in 1947 as an electron tube distributor. As its
customers migrated to new technologies, Richardson expanded its product
offerings to meet their needs. In the quarter ended February 28, 1998, products
other than electron tubes accounted for 61.6% of sales, up from 35.3% five years
earlier. The Company has increased its sales at a compound annual growth rate of
15.4%, from $34.2 million in 1983, the year of its initial public offering, to
$255.1 million in fiscal 1997, through a combination of internal growth and
selected acquisitions.
 
    Richardson's growth strategy emphasizes: (i) internal sales growth from
geographic and product line expansion, (ii) continuous operational improvement
intended to maximize gross margins; reduce selling, general and administrative
costs as a percentage of revenue; increase inventory turns; and otherwise
improve operating efficiencies and asset utilization and (iii) acquisition of
businesses or significant product lines which will expand the Company's product
offerings, geographic scope or customer base. During the last two years, the
Company completed six acquisitions. Since fiscal 1995, the Company has made key
additions to its management team to support growth and execute this strategy.
 
                                       3
<PAGE>
    Richardson organizes its marketing, sales, product management and purchasing
functions into the following four strategic business units ("SBUs"):
 
    - ELECTRON DEVICE GROUP ("EDG"). EDG's principal products, electron tubes,
      are used to control, switch, oscillate or amplify electrical power. This
      technology has been used for more than 80 years in electronic circuitry
      throughout the industrialized world. With such a vast installed base,
      replacement applications represent EDG's primary focus. The Company sells
      products directly to end users in industries including automotive,
      communications, marine, plastics, steel and textiles. Common applications
      include use in broadcasting equipment, motor speed controls, industrial
      heating systems, radar systems and welding equipment. The Company believes
      it is one of the few distributors offering a broad range of these
      products. Certain areas within EDG represent important growth
      opportunities, especially sales to customers in developing nations; sales
      of products to medical customers for use in x-ray and other imaging
      equipment; and sales of microwave generators for a wide variety of
      industrial and commercial heating applications. For the first nine months
      of fiscal 1998, EDG represented 38.8% of the Company's overall sales and,
      compared to the same period in the prior year, sales grew 2.6%, all of
      which was internally generated.
 
    - SOLID STATE AND COMPONENTS ("SSC"). SSC focuses its broad product
      offerings on two specialized markets. SSC sells (i) RF and microwave
      components directly to customers in the growing wireless and
      telecommunications markets, as well as in the broadcast and avionics
      markets, and (ii) power semiconductors and related components directly to
      a wide spectrum of industrial customers for use in electric power
      conversion applications. SSC derives the majority of its sales from
      products intended for use by original equipment manufacturers in new
      finished goods, and in particular, base stations and other RF transmission
      applications for the telecommunications market. For the first nine months
      of fiscal 1998, SSC represented 28.9% of the Company's overall sales and,
      compared to the same period in the prior year, sales grew 21.2%. Excluding
      the effects of an acquisition, SSC's internally generated sales grew
      16.3%.
 
    - DISPLAY PRODUCTS GROUP ("DPG"). DPG's largest product line is replacement
      cathode ray tubes ("CRTs") used in data display monitors for applications
      such as in computer networks, instrumentation displays, broadcast
      monitors, radar systems, viewfinders and TelePrompTers-Registered
      Trademark-. From a base of approximately 200 standard CRTs, DPG can
      provide over 200,000 product offerings with its value-added capabilities
      to cost-effectively meet its customers' needs. Principal customers include
      airlines, banks, hospitals, utilities and both independent and original
      equipment service and repair organizations. In addition to CRTs, the
      Company markets services such as system integration and engineering. DPG
      has recently expanded its product breadth to include the distribution of
      new data display monitors and flat panel display products. For the first
      nine months of fiscal 1998, DPG represented 10.1% of the Company's overall
      sales and, compared to the same period in the prior year, sales grew 4.0%,
      all of which was internally generated.
 
    - SECURITY SYSTEMS DIVISION ("SSD"). SSD serves the growing commercial
      security and surveillance industry with a primary emphasis on closed
      circuit television ("CCTV") systems and components. SSD's principal
      value-added service is system design. SSD's products for CCTV applications
      include cameras, mounts, monitors, recorders, lenses and related
      accessories. Additionally, SSD provides electronic components for burglar
      and fire detection systems, access control systems and commercial sound
      systems. SSD grew significantly due to the February 1997 acquisition of
      Burtek Systems and the August 1997 acquisition of Security Service
      International. For the first nine months of fiscal 1998, SSD represented
      22.2% of the Company's overall sales and, compared to the same period in
      the prior year, sales grew 104%. Excluding the effects of the two
      acquisitions, SSD's internally generated sales grew 26.3%.
 
    The Company's executive offices are located at 40W267 Keslinger Road, LaFox,
Illinois 60147, its telephone number is (630) 208-2200, and its web site address
is http://www.rell.com.
 
                                       4
<PAGE>
                                  THE OFFERING
 
<TABLE>
<S>                                                         <C>
Common Stock offered by the Company.......................  1,500,000 shares
 
Common Stock offered by the Selling Stockholder...........  1,500,000 shares
 
Common Stock and Class B Common Stock outstanding after
  the Offering (1)........................................  13,746,221 shares
 
Use of Proceeds...........................................  For reduction of indebtedness
                                                            and general corporate purposes,
                                                            including working capital and
                                                            possible acquisitions. See "Use
                                                            of Proceeds."
 
Nasdaq National Market Symbol.............................  RELL
</TABLE>
 
- ------------------------
 
(1)  BASED ON THE NUMBER OF SHARES OUTSTANDING ON MARCH 30, 1998; INCLUDES
    3,239,330 SHARES OF OUTSTANDING CLASS B COMMON STOCK, BUT EXCLUDES 3,680,609
    SHARES OF COMMON STOCK RESERVED FOR ISSUANCE UPON CONVERSION OF THE
    COMPANY'S CONVERTIBLE DEBENTURES AT A WEIGHTED AVERAGE CONVERSION PRICE OF
    $19.24 AND 1,389,699 SHARES OF COMMON STOCK RESERVED FOR ISSUANCE UPON
    EXERCISE OF OUTSTANDING OPTIONS GRANTED UNDER VARIOUS STOCK OPTION PLANS AT
    A WEIGHTED AVERAGE EXERCISE PRICE OF $7.68. UPON CONSUMMATION OF THE
    OFFERING, AN AGGREGATE OF 740,159 OPTIONS GRANTED UNDER SUCH PLANS WILL BE
    VESTED AND EXERCISABLE. SEE "RISK FACTORS--SHARES ELIGIBLE FOR FUTURE SALE."
 
                                       5
<PAGE>
               SUMMARY CONSOLIDATED FINANCIAL AND OPERATING DATA
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                     FISCAL YEAR ENDED MAY 31,                    FIRST NINE MONTHS
                                       -----------------------------------------------------  -------------------------
                                         1993      1994(1)    1995(2)     1996      1997(3)     1997(3)        1998
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
<S>                                    <C>        <C>        <C>        <C>        <C>        <C>          <C>
STATEMENT OF OPERATIONS DATA:
Net sales............................  $ 159,215  $ 172,094  $ 208,118  $ 239,667  $ 255,139   $ 183,874    $  223,442
Cost of products sold................    111,620    151,203    152,785    169,123    187,675     137,182       159,596
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
  Gross margin.......................     47,595     20,891     55,333     70,544     67,464      46,692        63,846
Selling, general and administrative
 expenses............................     38,070     41,226     48,674     52,974     62,333      46,508        48,525
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
    Operating income (loss)..........      9,525    (20,335)     6,659     17,570      5,131         184        15,321
Other expense, net...................      5,023      5,874      4,028      5,559      7,856       5,512         5,711
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
  Income (loss) before income taxes
    and extraordinary item...........      4,502    (26,209)     2,631     12,011     (2,725)     (5,328)        9,610
Income tax provision (benefit).......      1,700     (6,400)       150      3,900     (1,720)     (2,500)        2,880
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
  Income (loss) before extraordinary
    item.............................      2,802    (19,809)     2,481      8,111     (1,005)     (2,828)        6,730
Extraordinary gain (loss), net of
 tax.................................     --         --            527     --           (488)       (488)       --
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
    Net income (loss)................  $   2,802  $ (19,809) $   3,008  $   8,111  $  (1,493)  $  (3,316)   $    6,730
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
INCOME (LOSS) PER SHARE--BASIC:(4)
  Before extraordinary item..........  $     .25  $   (1.76) $     .22  $     .70  $    (.08)  $    (.24)   $      .56
  Extraordinary gain (loss), net of
    tax..............................     --         --            .05     --           (.04)       (.04)       --
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
    Net income (loss) per share......  $     .25  $   (1.76) $     .27  $     .70  $    (.12)  $    (.28)   $      .56
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
  Average shares outstanding.........     11,251     11,285     11,425     11,659     11,892      11,886        12,096
INCOME (LOSS) PER SHARE--DILUTED:(4)
  Before extraordinary item..........  $     .25  $   (1.76) $     .21  $     .68  $    (.08)  $    (.24)   $      .54
  Extraordinary gain (loss), net of
    tax..............................     --         --            .05     --           (.04)       (.04)       --
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
    Net income (loss) per share......  $     .25  $   (1.76) $     .26  $     .68  $    (.12)  $    (.28)   $      .54
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
  Average shares outstanding.........     11,335     11,285     11,566     12,002     11,892      11,886        12,476
 
DIVIDENDS PAID PER SHARE OF
 COMMON STOCK........................  $     .16  $     .16  $     .16  $     .16  $     .16   $     .12    $      .12
 
NET SALES BY STRATEGIC BUSINESS UNIT:
  Electron Device Group (EDG)........  $  97,846  $  91,736  $ 105,454  $ 109,925  $ 113,700   $  84,647    $   86,823
  Solid State & Components (SSC).....     31,619     42,274     52,409     67,976     74,209      53,201        64,484
  Display Products Group (DPG).......     19,076     27,150     36,502     36,154     29,377      21,737        22,617
  Security Systems Division (SSD)....     10,674     10,934     13,753     25,612     37,853      24,289        49,518
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
    Consolidated.....................  $ 159,215  $ 172,094  $ 208,118  $ 239,667  $ 255,139   $ 183,874    $  223,442
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
                                       ---------  ---------  ---------  ---------  ---------  -----------  ------------
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                                  FEBRUARY 28, 1998
                                                                                               ------------------------
<S>                                     <C>        <C>        <C>        <C>        <C>        <C>          <C>
                                                                                                 ACTUAL     ADJUSTED(5)
                                                                                               -----------  -----------
BALANCE SHEET DATA:
Working capital, net.........................................................................   $ 141,227    $ 141,227
Total assets.................................................................................     199,654      199,654
Long-term debt, including current portion....................................................     105,623       87,164
Stockholders' equity.........................................................................      64,211       82,670
</TABLE>
 
                                       6
<PAGE>
(1)  IN SEPTEMBER 1991, THE COMPANY SETTLED AN ANTITRUST SUIT WITH THE U.S.
    DEPARTMENT OF JUSTICE RELATED TO ITS PARTICIPATION IN THE ELECTRON TUBE
    MANUFACTURING INDUSTRY. AS A CONSEQUENCE, CERTAIN OF ITS MANUFACTURING
    ACTIVITIES BECAME UNECONOMIC AND WERE DIVESTED OR DISCONTINUED. IN FISCAL
    1994, COST OF PRODUCTS SOLD INCLUDED A $26.5 MILLION PROVISION, OF WHICH
    $21.4 MILLION WAS FOR THE DISPOSITION OF THE COMPANY'S MANUFACTURING
    OPERATIONS IN BRIVE, FRANCE, AND $5.1 MILLION WAS FOR INCREMENTAL COSTS
    RELATED TO THE PHASE-DOWN OF CERTAIN DOMESTIC MANUFACTURING OPERATIONS. NET
    OF TAX, THESE CHARGES INCREASED THE NET LOSS BY $19.5 MILLION, OR $1.73 PER
    SHARE.
 
(2)  IN FISCAL 1995, THE COMPANY RECORDED A CHARGE FOR THE SETTLEMENT OF A
    MONETARY CLAIM RELATED TO A 1989 CONTRACT WHICH REDUCED GROSS MARGIN BY $4.7
    MILLION AND NET INCOME BY $2.3 MILLION, OR $.20 PER SHARE. THE COMPANY ALSO
    RECORDED AN EXTRAORDINARY GAIN OF $527,000, OR $.05 PER SHARE, NET OF TAX,
    ON THE REPURCHASE OF CERTAIN OF THE COMPANY'S CONVERTIBLE DEBENTURES.
 
(3)  IN THE THIRD QUARTER OF FISCAL 1997, THE COMPANY RECORDED SPECIAL CHARGES
    FOR SEVERANCE AND OTHER COSTS RELATED TO A CORPORATE REORGANIZATION AND A
    RE-EVALUATION OF RESERVE ESTIMATES WHICH INCREASED COST OF PRODUCTS SOLD BY
    $7.2 MILLION AND SELLING, GENERAL AND ADMINISTRATIVE EXPENSES BY $3.8
    MILLION. NET OF TAX, THESE CHARGES REDUCED NET INCOME BY $6.7 MILLION, OR
    $.56 PER SHARE. THE COMPANY ALSO RECORDED AN EXTRAORDINARY LOSS OF $488,000,
    OR $.04 PER SHARE, NET OF TAX, ON THE EXCHANGE OF CERTAIN OF THE COMPANY'S
    CONVERTIBLE DEBENTURES.
 
(4)  THE COMPANY HAS ADOPTED STATEMENT OF FINANCIAL ACCOUNTING STANDARDS NO.
    128, "EARNINGS PER SHARE," WHICH BECAME EFFECTIVE DECEMBER 1997. THE
    EARNINGS PER SHARE AMOUNTS FOR 1997 AND PRIOR YEARS HAVE BEEN RESTATED TO
    COMPLY WITH THIS STATEMENT.
 
(5)  ADJUSTED TO GIVE EFFECT TO THE SALE OF 1,500,000 SHARES OF COMMON STOCK
    OFFERED BY THE COMPANY HEREBY AT AN ASSUMED OFFERING PRICE OF $13 3/8 PER
    SHARE AND THE APPLICATION OF NET PROCEEDS THEREFROM. SEE "USE OF PROCEEDS."
 
                                       7
<PAGE>
                                  RISK FACTORS
 
    PROSPECTIVE INVESTORS SHOULD CONSIDER CAREFULLY THE FOLLOWING RISK FACTORS,
IN ADDITION TO THE OTHER INFORMATION INCLUDED AND INCORPORATED BY REFERENCE IN
THIS PROSPECTUS, BEFORE DECIDING WHETHER TO INVEST IN THE COMMON STOCK OFFERED
HEREBY.
 
    ALL STATEMENTS OTHER THAN STATEMENTS OF HISTORICAL FACTS INCLUDED IN THIS
PROSPECTUS ARE STATEMENTS THAT CONSTITUTE "FORWARD-LOOKING STATEMENTS" WITHIN
THE MEANING OF SECTION 27A OF THE SECURITIES ACT AND SECTION 21E OF THE
SECURITIES EXCHANGE ACT OF 1934 (THE "EXCHANGE ACT"). THE WORDS "EXPECT,"
"ESTIMATE," "ANTICIPATE," "PREDICT," "BELIEVE" AND SIMILAR EXPRESSIONS AND
VARIATIONS THEREOF ARE INTENDED TO IDENTIFY FORWARD-LOOKING STATEMENTS. SUCH
STATEMENTS APPEAR IN A NUMBER OF PLACES IN THIS PROSPECTUS AND INCLUDE
STATEMENTS REGARDING THE INTENT, BELIEF OR CURRENT EXPECTATIONS OF THE COMPANY,
ITS DIRECTORS OR ITS OFFICERS WITH RESPECT TO, AMONG OTHER THINGS: (I) TRENDS
AFFECTING THE COMPANY'S FINANCIAL CONDITION OR RESULTS OF OPERATIONS; (II) THE
COMPANY'S FINANCING PLANS; (III) THE COMPANY'S BUSINESS AND GROWTH STRATEGIES,
INCLUDING POTENTIAL ACQUISITIONS; (IV) OTHER PLANS AND OBJECTIVES FOR FUTURE
OPERATIONS; AND (V) THE USE OF THE NET PROCEEDS FROM THE SALE OF COMMON STOCK BY
THE COMPANY IN THIS OFFERING. PROSPECTIVE INVESTORS ARE CAUTIONED THAT ANY SUCH
FORWARD-LOOKING STATEMENTS ARE NOT GUARANTEES OF FUTURE PERFORMANCE AND INVOLVE
RISKS AND UNCERTAINTIES AND THAT ACTUAL RESULTS MAY DIFFER MATERIALLY FROM THOSE
PREDICTED IN THE FORWARD-LOOKING STATEMENTS, AS A RESULT OF VARIOUS FACTORS. THE
ACCOMPANYING INFORMATION CONTAINED IN THIS PROSPECTUS, INCLUDING THE INFORMATION
SET FORTH UNDER THE HEADINGS "RISK FACTORS," "MANAGEMENT'S DISCUSSION AND
ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS" AND "BUSINESS," AS
WELL AS INFORMATION CONTAINED IN THE COMPANY'S OTHER FILINGS WITH THE SECURITIES
AND EXCHANGE COMMISSION, IDENTIFY IMPORTANT FACTORS THAT COULD CAUSE SUCH
DIFFERENCES.
 
COMPETITION; INVENTORY RISKS
 
    Each of the Company's SBUs faces substantial competition in its respective
markets. Many of the Company's competitors have significantly greater resources
and broader name recognition than the Company. Richardson faces competition
mainly from original equipment manufacturers in the after-market for replacement
of parts and from hundreds of electronic component distributors of various
sizes, locations and market focuses. Engineering capability, vendor
representation and product diversity create segmentation among distributors.
Richardson believes that the key competitive factors in its markets are the
ability to provide engineered solutions, inventory availability, quality,
reliable delivery and price. There can be no assurance that the Company will be
able to continue to compete effectively with existing or potential competitors.
In addition, gross margins in the businesses in which the Company's SSC
strategic business unit competes have declined in recent years due to
competitive pressures. Also the size of the available market for certain of the
products historically sold by Richardson has declined in recent years due to
technological changes. The Company believes these trends will continue. See
"Business-Strategic Business Units" and "Business-Competition." Further, because
a portion of the business of its EDG strategic business unit is trailing edge
technology and manufacturers are exiting the business, Richardson occasionally
makes last time inventory purchases. There can be no assurance that the Company
will be able to dispose of all of such inventory.
 
DEPENDENCE UPON KEY VENDORS
 
    Many kinds of products distributed by the Company are currently produced by
a relatively small number of manufacturers. The Company's future success will
depend, in large part, on maintaining current vendor relationships and
developing new relationships. Richardson believes that vendors supplying
products to certain of the product lines of its EDG strategic business unit are
consolidating their distribution relationships or exiting the business.
Richardson's three largest suppliers are Communications & Power Industries,
Inc., Covimag S.A. and M/A-COM, Inc., which accounted for 10.3%, 5.6% and 5.0%
of the Company's overall purchases in fiscal 1997, respectively. See
"Business-Distribution and Marketing." The loss of, or significant disruptions
in the relationship with, several principal vendors could have a material
adverse effect on Richardson. The Company has in the past and may in the future
experience difficulties
 
                                       8
<PAGE>
obtaining, in a timely manner, certain products. The inability of suppliers to
provide the Company with the required quantity or quality of products could have
a material adverse effect on the Company's business until such time as an
alternate source of supply for such products is found.
 
STRATEGIC BUSINESS UNIT CUSTOMER CONCENTRATION
 
    Each of the Company's SBUs has one or several key customers that account for
a meaningful share of its sales though no single customer accounted for more
than 2% of the Company's sales in fiscal 1997. Generally, the Company does not
have long term supply contracts with its customers and they may unilaterally
reduce or discontinue their purchases. Product sales by Richardson are typically
made on a purchase-order basis. The loss of several of the Company's largest
customers, or their substantial reduction in level of purchases, or the failure
of several of such customers to pay for their purchases from the Company on a
timely basis, could have a material adverse effect on the Company. There can be
no assurance that the Company's largest customers will continue to place orders
with Richardson or that orders by such customers will continue at their previous
levels.
 
CONTROL BY PRINCIPAL STOCKHOLDER
 
    Upon completion of this Offering, Edward J. Richardson, Chairman of the
Board and Chief Executive Officer, will beneficially own a 31.9% economic share
and a 77.2% voting share of the Company. The Company's certificate of
incorporation does not provide for cumulative voting. As a result, Mr.
Richardson effectively is able to control the Company, including the election of
directors, and a sale of the Company could not be effected without his approval.
See "Principal and Selling Stockholders." The Company's new $50.0 million
revolving credit facility contains provisions which would result in a default
thereunder if Mr. Richardson owns fewer shares of the Company's voting stock
than is required to elect a majority of the Company's Board of Directors and
control any amendment to its by-laws.
 
DEPENDENCE UPON KEY AND TECHNICAL PERSONNEL
 
    The recent success of the Company has been largely dependent upon the
efforts and abilities of certain key members of its senior management, including
Edward J. Richardson, Chairman of the Board and Chief Executive Officer, and
Bruce W. Johnson, President and Chief Operating Officer. See "Management." The
loss of their services for any reason could have a material adverse effect on
the Company. In addition, the Company's success is dependent upon its ability to
recruit and retain qualified personnel, including technical and engineering
personnel. Competition for such personnel is intense, and there can be no
assurance that Richardson will be successful in attracting or retaining such
personnel. The failure to attract or retain such persons could have a material
adverse effect on the Company.
 
INTERNATIONAL TRADE AND EXCHANGE RATE FLUCTUATIONS
 
    In fiscal 1997, 48.5% and 33.4% of the Company's sales and purchases of
products, respectively, were made internationally and 7.4% and 13.1%,
respectively, were made in Asia. Many Asian countries have recently experienced
economic distress, including currency devaluation, bank failures and general
contraction of economic output. The Company cannot predict the impact of these
recent events on its future business performance. International trade is subject
to numerous risks, including labor strikes, shipping costs and delays, political
or economic instability, trade restrictions, export controls, customs
regulations, tariff and import duties, foreign exchange restrictions which limit
the repatriation of investments and earnings therefrom, changes in taxation or
international tax treaties, other government regulation, military action and
other hostilities and confiscation of property. Such risks could result in
substantial increases in costs, the reduction of profit, the inability to do
business and other adverse effects.
 
    Since the revenues and expenses of Richardson's foreign operations are
generally denominated in local currencies, exchange rate fluctuations between
local currencies and the U.S. dollar subject the
 
                                       9
<PAGE>
Company to currency exchange risks with respect to the results of its foreign
operations to the extent it is unable to denominate its purchases or sales in
U.S. dollars or otherwise shift to its customers or suppliers the risk of
currency exchange rate fluctuations. The Company currently does not engage in
currency hedging transactions but may do so in the future. Fluctuations in
exchange rates may affect the results of the Company's international operations
reported in U.S. dollars and the value of such operations' net assets reported
in U.S. dollars. Additionally, the competitive position of the Company may be
affected by the relative strength of the currencies in countries where its
products are sold. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations."
 
RISKS OF BUSINESS ACQUISITIONS
 
    Richardson's growth strategy includes expansion through acquisitions. A
portion of the net proceeds from this Offering may be used for potential
acquisitions. See "Use of Proceeds." There can be no assurance that the Company
will be able to successfully negotiate with potential acquisition candidates,
secure acquisition financing on acceptable terms, complete acquisitions,
integrate acquired operations and management into existing operations or expand
into new markets. There can be no assurance that acquisitions will not have an
adverse effect on the Company's operating results, particularly in the periods
following the completion of such acquisitions while the management and
operations of the acquired business are being integrated into Richardson's
operations. Once integrated, acquired operations may not achieve levels of
profitability or productivity comparable with those of Richardson's existing
operations, or otherwise perform as expected. In addition, the Company competes
for acquisition and expansion opportunities with companies that have
substantially greater resources than those of Richardson. The Company currently
has no agreements, arrangements or understandings with respect to any future
material acquisition and there can be no assurance that any such acquisition
will be consummated. See "Business-Growth Strategy."
 
MANAGEMENT OF GROWTH
 
    The Company's ability to sustain its historical growth rate will depend upon
several factors, including Richardson's ability to recruit, train and retain a
skilled workforce to support its expanding operations. There can be no assurance
that the Company will be able to sustain its historical rate of sales growth,
continue its profitable operations, develop the required workforce or manage any
future growth successfully.
 
MARKET CONDITIONS; POSSIBLE VOLATILITY OF STOCK PRICE
 
    From time to time, there may be significant volatility in the market price
for the Common Stock. The Company is not able to predict the effect on market
prices from the distribution of the shares of Common Stock covered by this
Prospectus. Further, factors such as new distribution franchise announcements by
the Company, quarterly fluctuations in the Company's operating results and
general conditions in the securities markets may have a significant impact on
the market price of the Common Stock. These fluctuations may be compounded by
the historically low trading volume in the Common Stock. In addition, in recent
years the stock market has experienced extreme price and volume fluctuations.
This volatility has had a significant effect on the market prices of securities
issued by many companies for reasons unrelated to their operating performance.
 
CONTINUATION OF DIVIDENDS
 
    There can be no assurance that Richardson will continue to pay cash
dividends on its Common Stock. The Company may decide that cash otherwise
available for dividends needs to be retained for various reasons. Also, the
Company's convertible debentures and other borrowing arrangements contain
restrictions on the payment of cash dividends. See "Dividend Policy."
 
                                       10
<PAGE>
SHARES ELIGIBLE FOR FUTURE SALE
 
    Upon completion of this Offering, the Company will have 13,746,221 shares of
Common Stock and Class B Common Stock outstanding. All of these shares will be
freely tradable without restriction under the Securities Act, unless held by
affiliates of the Company. In addition to the foregoing, as of March 30, 1998,
the Company had outstanding options for 1,389,699 shares of Common Stock, of
which 740,159 options were then currently exercisable, and there were 3,680,609
shares of Common Stock issuable upon conversion of the Company's convertible
debentures. Furthermore there were an additional 784,622 shares of Common Stock
available for shares which may be granted or sold in the future under the
Company's various plans. All such shares of Common Stock either have been
registered on previously filed and currently effective registration statements
or do not require registration and as such will be freely tradable without
restriction under the Securities Act upon issuance unless held by affiliates of
the Company. Except in specific limited circumstances, the Company, the Selling
Stockholder, and the Company's executive officers and directors have agreed not
to offer, sell, transfer, pledge, contract to do the same, or otherwise dispose
of any of their shares of Common Stock for a period of 120 days after the date
of this Prospectus without the prior written consent of Cleary Gull Reiland &
McDevitt Inc. The Company makes no prediction as to the effect, if any, that
future sales of shares or the availability of shares for future sale will have
on the prevailing market price of the Common Stock. Sales of substantial amounts
of Common Stock in the public market or the perception that such sales could
occur could have an adverse effect on the prevailing market price of the Common
Stock. See "Description of Capital Stock and Debentures."
 
IMPACT OF ANTI-TAKEOVER MEASURES
 
    Certain provisions of the Company's certificate of incorporation and bylaws
and the Delaware General Corporation Law may have the effect of making it more
difficult for a third party to acquire, or of discouraging a third party from
attempting to acquire, control of the Company. Such provisions could limit the
price that certain investors might be willing to pay in the future for shares of
Common Stock. Pursuant to the Company's certificate of incorporation, the Board
of Directors is authorized to fix the rights, preferences, privileges and
restrictions, including voting rights, of unissued shares of the Company's
preferred stock and to issue such stock without any further vote or action by
Richardson's stockholders. The rights of the holders of Common Stock will be
subject to, and may be adversely affected by, the rights of the holders of any
preferred stock that may be created and issued in the future.
 
    Richardson is subject to Section 203 of the Delaware General Corporation Law
which restricts certain transactions and business combinations between a
corporation and an "Interested Stockholder" owning 15% or more of the
corporation's outstanding voting stock for a period of three years from the date
the stockholder becomes an Interested Stockholder. Subject to certain
exceptions, unless the transaction is approved in a prescribed manner, such
Section 203 prohibits significant business transactions such as a merger with,
disposition of assets to, or receipt of disproportionate financial benefits by
the Interested Stockholder, or any other transactions that would increase the
Interested Stockholder's proportionate ownership of any class or series of the
corporation's stock.
 
                                       11
<PAGE>
                                USE OF PROCEEDS
 
    The net proceeds to the Company from the sale of the Common Stock by the
Company hereby, after deducting the underwriting discount and the estimated
expenses of this Offering and assuming an offering price of $13 3/8 per share,
will be $18.5 million ($21.3 million if the Underwriters' over-allotment option
is exercised in full). The Company will not receive any proceeds from the sale
of Common Stock by the Selling Stockholder.
 
    The net proceeds will be used to pay down the Company's revolving credit
facility. This will increase the availability of funds under such facility which
the Company may re-borrow in the future for working capital and general
corporate purposes, including sales, marketing and customer support efforts;
redemption or purchase of the Company's outstanding securities; expansion of
operations; and acquisitions of businesses, products or technologies that
present opportunities to expand Richardson's distribution channels, grow its
customer base and add to its product line. The Company evaluates acquisition
opportunities on an ongoing basis. Although there are no current agreements or
understandings with respect to any material acquisitions, the Company desires to
be able to respond to opportunities as they arise. There can be no assurances,
however, that Richardson will complete any acquisitions.
 
    The Company has not determined the amounts it plans to expend on any of
these uses or the timing of the expenditures. The amounts actually expended for
these uses, if any, are at the discretion of the Company and may vary
significantly depending upon a number of factors, including future revenue
growth and the amount of cash generated by the Company's operations.
 
                                       12
<PAGE>
                                 CAPITALIZATION
                                 (IN THOUSANDS)
 
    The following table sets forth the capitalization of the Company as of
February 28, 1998 on an actual basis and as adjusted to give effect to the
issuance and sale of 1,500,000 shares of Common Stock offered by the Company at
an assumed offering price of $13 3/8 per share and the application of the net
proceeds therefrom. See "Use of Proceeds." This table should be read in
conjunction with the Consolidated Financial Statements and Notes thereto
included elsewhere in or incorporated by reference into the Prospectus.
 
<TABLE>
<CAPTION>
                                                                                            FEBRUARY 28, 1998
                                                                                       ---------------------------
                                                                                                     AS ADJUSTED
                                                                                         ACTUAL          (1)
                                                                                       -----------  --------------
<S>                                                                                    <C>          <C>
Revolving credit facility due January 1999(2)........................................  $    26,332   $      7,873
Revolving credit and term loan due January 1999(3) and other long-term debt..........        8,466          8,466
8 1/4% Convertible debentures due June 2006(4).......................................       40,000         40,000
7 1/4% Convertible debentures due December 2006(4)...................................       30,825         30,825
                                                                                       -----------  --------------
  Total debt.........................................................................      105,623         87,164
                                                                                       -----------  --------------
Stockholders' equity:
  Common Stock, $.05 par value, 30,000,000 shares authorized, 8,967,891 shares issued
    and outstanding(4)...............................................................          449            524
  Class B Common Stock, convertible, $.05 par value, 10,000,000 shares authorized,
    3,242,240 issued and outstanding.................................................          162            162
  Preferred Stock, $1.00 par value, 5,000,000 authorized, none issued................           --             --
  Additional paid-in capital.........................................................       55,549         73,933
  Retained earnings..................................................................       14,396         14,396
  Foreign currency translation adjustment............................................       (6,345)        (6,345)
                                                                                       -----------  --------------
    Total stockholders' equity.......................................................       64,211         82,670
                                                                                       -----------  --------------
    Total capitalization.............................................................  $   169,834   $    169,834
                                                                                       -----------  --------------
                                                                                       -----------  --------------
</TABLE>
 
- ------------------------
 
(1)  ADJUSTED TO GIVE EFFECT TO THE SALE OF 1,500,000 SHARES OF COMMON STOCK BY
    THE COMPANY HEREBY AT AN ASSUMED OFFERING PRICE OF $13 3/8 PER SHARE AND THE
    APPLICATION OF NET PROCEEDS THEREFROM. SEE "USE OF PROCEEDS."
 
(2)  THIS AGREEMENT WAS REPLACED ON MARCH 1, 1998 WITH A NEW $50.0 MILLION
    REVOLVING CREDIT FACILITY WHICH EXPIRES IN MARCH 2001.
 
(3)  THIS AGREEMENT WAS AMENDED EFFECTIVE MARCH 1, 1998 TO EXTEND ITS EXPIRATION
    DATE TO MARCH, 2001.
 
(4)  EXCLUDES 1,436,699 SHARES OF COMMON STOCK ISSUABLE UPON THE EXERCISE OF
    OUTSTANDING OPTIONS WHICH HAD A WEIGHTED AVERAGE EXERCISE PRICE OF $7.62 PER
    SHARE. ALSO EXCLUDES 3,380,609 SHARES OF COMMON STOCK RESERVED IN THE EVENT
    OF CONVERSION FOR THE COMPANY'S 8 1/4% AND 7 1/4% CONVERTIBLE DEBENTURES
    WHICH HAVE CONVERSION PRICES OF $18.00 AND $21.14, RESPECTIVELY, AND 120,687
    SHARES OF COMMON STOCK RESERVED FOR THE COMPANY'S EMPLOYEES STOCK PURCHASE
    PLAN. SEE "DESCRIPTION OF CAPITAL STOCK AND DEBENTURES."
 
                                       13
<PAGE>
                          PRICE RANGE OF COMMON STOCK
 
    The Common Stock is traded on the Nasdaq National Market under the symbol
"RELL." The number of registered stockholders of Common Stock and Class B Common
Stock at March 30, 1998 was 652 and 31, respectively. The number of record
holders of Common Stock may not be representative of the number of beneficial
holders because many shares of Common Stock are held by depositories, brokers or
other nominees. The quarterly high and low sales prices of the Common Stock as
reported by the Nasdaq National Market were as follows for the periods
indicated:
 
<TABLE>
<CAPTION>
                                                                                HIGH        LOW
                                                                              ---------  ---------
<S>                                                                           <C>        <C>
Fiscal Year Ended May 31, 1996
  First Quarter.............................................................  $   8 1/8  $       7
  Second Quarter............................................................     11 3/4      6 7/8
  Third Quarter.............................................................     11 1/4          9
  Fourth Quarter............................................................     11 7/8      9 3/4
Fiscal Year Ended May 31, 1997
  First Quarter.............................................................     10 1/2          9
  Second Quarter............................................................         10          7
  Third Quarter.............................................................     10 1/4          8
  Fourth Quarter............................................................      8 1/4      6 3/4
Fiscal Year Ending May 31, 1998
  First Quarter.............................................................      8 3/4          8
  Second Quarter............................................................     13 3/4      8 3/8
  Third Quarter.............................................................     12 5/8      9 3/4
  Fourth Quarter (through March 27, 1998)...................................         14     10 1/4
</TABLE>
 
    On March 27, 1998, the last sale price of the Common Stock was $13 3/8 per
share as reported by the Nasdaq National Market.
 
                                DIVIDEND POLICY
 
    The Company has declared a dividend on its Common Stock of $.04 per share
and on its Class B Common Stock of $.036 per share for 39 consecutive quarters.
Annual dividend payments approximate $1.9 million currently and, assuming the
continuation of payment of dividends at the same rate, will be approximately
$2.1 million upon completion of the Offering. The policy regarding payment of
dividends is reviewed periodically by the Board of Directors in light of the
Company's operating needs and capital structure. Any determination as to the
payment of dividends will depend upon future earnings, results of operations,
capital requirements, the financial condition of Richardson and such other
factors as the Board of Directors of the Company may consider. In addition, the
Company's debt agreements contain covenants restricting payments of dividends or
distributions on its capital stock or to stockholders (other than stock
dividends) and the purchase, redemption, acquisition or retirement of its
capital stock for value by the Company. As of March 1, 1998, $10.0 million of
retained earnings was free of such restrictions and, subsequent to this
Offering, the Company expects such amount to increase to approximately $28.5
million. See "Management's Discussion and Analysis of Financial Condition and
Results of Operations," Note F to Consolidated Financial Statements and "Risk
Factors -- Continuation of Dividends."
 
                                       14
<PAGE>
                      SELECTED CONSOLIDATED FINANCIAL DATA
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
    The selected consolidated financial data presented below has been derived
from the Consolidated Financial Statements. The Consolidated Financial
Statements as of and for the fiscal years ended May 31, 1993, 1994, 1995, 1996
and 1997 have been audited by Ernst & Young LLP, independent auditors. The
selected consolidated financial data as of and for the first nine month periods
of fiscal 1997 and 1998 have been derived from the unaudited interim
consolidated financial statements of the Company and reflect, in management's
opinion, all adjustments, consisting only of normally recurring adjustments,
necessary for a fair presentation of the financial position and results of
operations for such periods. Results of operations for interim periods are not
necessarily indicative of results for the full year. The following information
should be read in conjunction with "Management's Discussion and Analysis of
Financial Condition and Results of Operations," the Consolidated Financial
Statements and Notes thereto and other information included elsewhere in this
Prospectus.
<TABLE>
<CAPTION>
                                                                                                                          FIRST
                                                                                                                          NINE
                                                                               FISCAL YEAR ENDED MAY 31,                 MONTHS
                                                                 -----------------------------------------------------  ---------
                                                                   1993      1994(1)    1995(2)     1996      1997(3)    1997(3)
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
<S>                                                              <C>        <C>        <C>        <C>        <C>        <C>
STATEMENT OF OPERATIONS DATA:
Net sales......................................................  $ 159,215  $ 172,094  $ 208,118  $ 239,667  $ 255,139  $ 183,874
Cost of products sold..........................................    111,620    151,203    152,785    169,123    187,675    137,182
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
  Gross margin.................................................     47,595     20,891     55,333     70,544     67,464     46,692
Selling, general and administrative expenses...................     38,070     41,226     48,674     52,974     62,333     46,508
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
    Operating income (loss)....................................      9,525    (20,335)     6,659     17,570      5,131        184
Other expense, net.............................................      5,023      5,874      4,028      5,559      7,856      5,512
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
  Income (loss) before income taxes and extraordinary item.....      4,502    (26,209)     2,631     12,011     (2,725)    (5,328)
Income tax provision (benefit).................................      1,700     (6,400)       150      3,900     (1,720)    (2,500)
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
  Income (loss) before extraordinary item......................      2,802    (19,809)     2,481      8,111     (1,005)    (2,828)
Extraordinary gain (loss), net of tax..........................     --         --            527     --           (488)      (488)
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
    Net income (loss)..........................................  $   2,802  $ (19,809) $   3,008  $   8,111  $  (1,493) $  (3,316)
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
INCOME (LOSS) PER SHARE - BASIC(4):
  Before extraordinary item....................................  $     .25  $   (1.76) $     .22  $     .70  $    (.08) $    (.24)
  Extraordinary gain (loss), net of tax........................     --         --            .05     --           (.04)      (.04)
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
    Net income (loss) per share................................  $     .25  $   (1.76) $     .27  $     .70  $    (.12) $    (.28)
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
  Average shares outstanding...................................     11,251     11,285     11,425     11,659     11,892     11,886
 
INCOME (LOSS) PER SHARE - DILUTED(4):
  Before extraordinary item....................................  $     .25  $   (1.76) $     .21  $     .68  $    (.08) $    (.24)
  Extraordinary gain (loss), net of tax........................     --         --            .05     --           (.04)      (.04)
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
    Net income (loss) per share................................  $     .25  $   (1.76) $     .26  $     .68  $    (.12) $    (.28)
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
                                                                 ---------  ---------  ---------  ---------  ---------  ---------
  Average shares outstanding...................................     11,335     11,285     11,566     12,002     11,892     11,886
 
DIVIDENDS PAID PER SHARE OF COMMON STOCK.......................  $     .16  $     .16  $     .16  $     .16  $     .16  $     .12
 
<CAPTION>
 
                                                                   1998
                                                                 ---------
<S>                                                              <C>
STATEMENT OF OPERATIONS DATA:
Net sales......................................................  $ 223,442
Cost of products sold..........................................    159,596
                                                                 ---------
  Gross margin.................................................     63,846
Selling, general and administrative expenses...................     48,525
                                                                 ---------
    Operating income (loss)....................................     15,321
Other expense, net.............................................      5,711
                                                                 ---------
  Income (loss) before income taxes and extraordinary item.....      9,610
Income tax provision (benefit).................................      2,880
                                                                 ---------
  Income (loss) before extraordinary item......................      6,730
Extraordinary gain (loss), net of tax..........................     --
                                                                 ---------
    Net income (loss)..........................................  $   6,730
                                                                 ---------
                                                                 ---------
INCOME (LOSS) PER SHARE - BASIC(4):
  Before extraordinary item....................................  $     .56
  Extraordinary gain (loss), net of tax........................     --
                                                                 ---------
    Net income (loss) per share................................  $     .56
                                                                 ---------
                                                                 ---------
  Average shares outstanding...................................     12,096
INCOME (LOSS) PER SHARE - DILUTED(4):
  Before extraordinary item....................................  $     .54
  Extraordinary gain (loss), net of tax........................     --
                                                                 ---------
    Net income (loss) per share................................  $     .54
                                                                 ---------
                                                                 ---------
  Average shares outstanding...................................     12,476
DIVIDENDS PAID PER SHARE OF COMMON STOCK.......................  $     .12
</TABLE>
<TABLE>
<CAPTION>
                                                                                        MAY 31,
                                                                 -----------------------------------------------------
BALANCE SHEET DATA:                                                1993       1994       1995       1996       1997
                                                                 ---------  ---------  ---------  ---------  ---------
<S>                                                              <C>        <C>        <C>        <C>        <C>
Working capital, net...........................................  $ 103,987  $  96,494  $ 106,235  $ 133,151  $ 140,821
Total assets...................................................    205,043    179,467    173,514    180,158    192,514
Long-term debt, including current portion......................    101,989     88,288     81,504     92,025    107,275
Stockholders' equity...........................................     75,417     52,573     56,154     62,792     59,590
 
<CAPTION>
 
                                                                 FEBRUARY 28,
BALANCE SHEET DATA:                                                  1998
                                                                 -------------
<S>                                                              <C>
Working capital, net...........................................    $ 141,227
Total assets...................................................      199,654
Long-term debt, including current portion......................      105,623
Stockholders' equity...........................................       64,211
</TABLE>
 
- ------------------------------
 
(1)  IN SEPTEMBER 1991, THE COMPANY SETTLED AN ANTITRUST SUIT WITH THE U.S.
    DEPARTMENT OF JUSTICE RELATED TO ITS PARTICIPATION IN THE ELECTRON TUBE
    MANUFACTURING INDUSTRY. AS A CONSEQUENCE, CERTAIN OF ITS MANUFACTURING
    ACTIVITIES BECAME UNECONOMIC AND WERE DIVESTED OR DISCONTINUED. IN FISCAL
    1994, COST OF PRODUCTS SOLD INCLUDED A $26.5 MILLION PROVISION, OF WHICH
    $21.4 MILLION WAS FOR THE DISPOSITION OF THE COMPANY'S MANUFACTURING
    OPERATIONS IN BRIVE, FRANCE, AND $5.1 MILLION WAS FOR INCREMENTAL COSTS
    RELATED TO THE PHASE-DOWN OF CERTAIN DOMESTIC MANUFACTURING OPERATIONS. NET
    OF TAX, THESE CHARGES INCREASED THE NET LOSS BY $19.5 MILLION, OR $1.73 PER
    SHARE.
 
(2)  IN FISCAL 1995, THE COMPANY RECORDED A CHARGE FOR THE SETTLEMENT OF A
    MONETARY CLAIM RELATED TO A 1989 CONTRACT WHICH REDUCED GROSS MARGIN BY $4.7
    MILLION AND NET INCOME BY $2.3 MILLION, OR $.20 PER SHARE. THE COMPANY ALSO
    RECORDED AN EXTRAORDINARY GAIN OF $527,000, OR $.05 PER SHARE, NET OF TAX,
    ON THE REPURCHASE OF CERTAIN OF THE COMPANY'S CONVERTIBLE DEBENTURES.
 
                                       15
<PAGE>
(3)  IN THE THIRD QUARTER OF FISCAL 1997, THE COMPANY RECORDED SPECIAL CHARGES
    FOR SEVERANCE AND OTHER COSTS RELATED TO A CORPORATE REORGANIZATION AND A
    RE-EVALUATION OF RESERVE ESTIMATES WHICH INCREASED COST OF PRODUCTS SOLD BY
    $7.2 MILLION AND SELLING, GENERAL AND ADMINISTRATIVE EXPENSES BY $3.8
    MILLION. NET OF TAX, THESE CHARGES REDUCED NET INCOME BY $6.7 MILLION, OR
    $.56 PER SHARE. THE COMPANY ALSO RECORDED AN EXTRAORDINARY LOSS OF $488,000,
    OR $.04 PER SHARE, NET OF TAX, ON THE EXCHANGE OF CERTAIN OF THE COMPANY'S
    CONVERTIBLE DEBENTURES.
 
(4)  THE COMPANY HAS ADOPTED STATEMENT OF FINANCIAL ACCOUNTING STANDARDS NO.
    128, "EARNINGS PER SHARE," WHICH BECAME EFFECTIVE DECEMBER 1997. THE
    EARNINGS PER SHARE AMOUNTS FOR 1997 AND PRIOR YEARS HAVE BEEN RESTATED TO
    COMPLY WITH THIS STATEMENT.
 
                                       16
<PAGE>
          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                           AND RESULTS OF OPERATIONS
 
    THE FOLLOWING SHOULD BE READ IN CONJUNCTION WITH THE CONSOLIDATED FINANCIAL
STATEMENTS, INCLUDING THE NOTES THERETO, AND THE SECOND PARAGRAPH UNDER THE
HEADING "RISK FACTORS" INCLUDED ELSEWHERE IN THIS PROSPECTUS. UNLESS OTHERWISE
NOTED, REFERENCES TO SPECIFIC YEARS IN THIS SECTION RELATE TO FISCAL YEARS. FOR
EXAMPLE, "1997" REFERS TO THE FISCAL YEAR ENDED MAY 31, 1997.
 
    Richardson Electronics, Ltd. is a specialized international distributor of
electronic components, equipment and assemblies primarily for niche industrial
applications. Richardson operates in one industry segment. The marketing and
sales structure of the Company is organized into four strategic business units
("SBUs"): Electron Device Group ("EDG"), Solid State and Components ("SSC"),
Display Products Group ("DPG") and Security Systems Division ("SSD").
 
RESULTS OF OPERATIONS--FIRST NINE MONTHS OF FISCAL 1998 COMPARED TO FIRST NINE
  MONTHS OF
  FISCAL 1997
 
    Net sales for the first nine months of fiscal 1998 were $223.4 million, a
21.5% increase from $183.9 million in the prior year. Sales gains include the
effect of recent acquisitions, which contributed $21.4 million in fiscal 1998.
 
    Overall gross margins as a percent of sales in the nine-month period were
28.6%, compared to 29.3% in the prior period, excluding the effect of the
special charges. Year-to-date margin comparisons are affected by changes in
product mix, with lower margin SSD sales contributing a proportionately greater
percentage to total sales.
 
    Sales, gross margins and gross margin as a percent of sales by SBU are
summarized in the following table. Manufacturing variances, warranty expenses,
LIFO provisions and miscellaneous costs are included under the caption "Other"
(in thousands):
<TABLE>
<CAPTION>
                                                                    SALES                                GROSS MARGINS
                                                 --------------------------------------------  ---------------------------------
<S>                                              <C>         <C>        <C>         <C>        <C>        <C>          <C>
                                                   FISCAL      % OF       FISCAL      % OF      FISCAL       % OF       FISCAL
                                                    1997       TOTAL       1998       TOTAL     1997(1)      SALES       1998
                                                 ----------  ---------  ----------  ---------  ---------     -----     ---------
EDG............................................  $   84,647       46.1  $   86,823       38.8  $  22,585        26.7   $  27,360
SSC............................................      53,201       28.9      64,484       28.9     13,835        26.0      18,459
DPG............................................      21,737       11.8      22,617       10.1      5,875        27.0       7,633
SSD............................................      24,289       13.2      49,518       22.2      5,151        21.2      11,457
                                                 ----------  ---------  ----------  ---------  ---------               ---------
    Total......................................  $  183,874      100.0  $  223,442      100.0     47,446        25.8      64,909
                                                 ----------  ---------  ----------  ---------
                                                 ----------  ---------  ----------  ---------
Other..........................................                                                     (754)                 (1,063)
                                                                                               ---------               ---------
    Consolidated...............................                                                $  46,692        25.4   $  63,846
                                                                                               ---------               ---------
                                                                                               ---------               ---------
 
<CAPTION>
<S>                                              <C>
                                                    % OF
                                                    SALES
                                                    -----
EDG............................................        31.5
SSC............................................        28.6
DPG............................................        33.7
SSD............................................        23.1
    Total......................................        29.0
Other..........................................
    Consolidated...............................        28.6
</TABLE>
 
- ------------------------
 
(1)  IN THE THIRD QUARTER OF FISCAL 1997, THE COMPANY RE-EVALUATED ITS RESERVE
    ESTIMATES FOR INVENTORY AND ACCOUNTS RECEIVABLE IN LIGHT OF CHANGED MARKET
    CONDITIONS AND PROVIDED FOR SEVERANCE AND OTHER COSTS ASSOCIATED WITH A
    CORPORATE REORGANIZATION. THE SPECIAL CHARGE INCLUDED IN COST OF SALES WAS
    $7.2 MILLION, WHICH REDUCED GROSS MARGINS FOR EDG BY $2.8 MILLION, SSC BY
    $2.4 MILLION, DPG BY $1.9 MILLION AND SSD BY $100,000.
 
    EDG's sales increased 2.6%. Gross margins as a percent of sales were 31.5%,
compared to the prior period rate of 30.0%, excluding the special charges. Gross
margins improved as a result of changes in pricing policies and higher
efficiencies in x-ray tube loading operations.
 
    SSC's sales increased 21.2%. SSC's sales growth includes the October 1996
acquisition of Compucon. Without the contribution from this acquisition, SSC's
internally generated sales growth was 16.3%. Gross
 
                                       17
<PAGE>
margins as a percent of sales were 28.6%, down from 30.6%, excluding the special
charges. The margin change is primarily due to product mix and competitive
pressures.
 
    DPG's sales increased 4.0%. Gross margins as a percent of sales declined to
33.7% from 35.6%, excluding the special charges. The sales gain and margin
change reflect the resumption of sales to a major European customer, partially
offset by a decline in sales of monochrome CRTs.
 
    SSD's sales increased 104%. SSD's sales growth includes the acquisition of
Burtek Systems in February 1997 and Security Service International in August
1997. Without the contribution from these acquisitions, SSD's internally
generated sales growth was 26.3%. Gross margins as a percent of sales were
23.1%, compared to the prior year's 21.6%, excluding the special charges. The
margin improvement results from higher margins on proprietary and franchise
product lines obtained with the acquisitions of Burtek and SSI.
 
    On a geographic basis, the Company categorizes its sales by destination:
North America, Europe and Rest of World ("ROW"). Sales, gross margins and gross
margin as a percent of sales by area are summarized in the following table (in
thousands):
<TABLE>
<CAPTION>
                                                                     SALES                                GROSS MARGINS
                                                  --------------------------------------------  ---------------------------------
<S>                                               <C>         <C>        <C>         <C>        <C>        <C>          <C>
                                                    FISCAL      % OF       FISCAL      % OF      FISCAL       % OF       FISCAL
                                                     1997       TOTAL       1998       TOTAL     1997(1)      SALES       1998
                                                  ----------  ---------  ----------  ---------  ---------     -----     ---------
North America...................................  $  109,398       59.5  $  139,128       62.3  $  27,798        25.4   $  39,446
Europe..........................................      40,929       22.3      48,498       21.7     11,568        28.3      14,932
Rest of World...................................      33,547       18.2      35,816       16.0      8,080        24.1      10,531
                                                  ----------  ---------  ----------  ---------  ---------               ---------
    Total.......................................  $  183,874      100.0  $  223,442      100.0     47,446        25.8      64,909
                                                  ----------  ---------  ----------  ---------
                                                  ----------  ---------  ----------  ---------
Other...........................................                                                     (754)                 (1,063)
                                                                                                ---------               ---------
    Consolidated................................                                                $  46,692        25.4   $  63,846
                                                                                                ---------               ---------
                                                                                                ---------               ---------
 
<CAPTION>
<S>                                               <C>
                                                     % OF
                                                     SALES
                                                     -----
North America...................................        28.4
Europe..........................................        30.8
Rest of World...................................        29.4
    Total.......................................        29.0
Other...........................................
    Consolidated................................        28.6
</TABLE>
 
- ------------------------
 
(1)  THE SPECIAL CHARGE IN THE THIRD QUARTER OF FISCAL 1997 INCLUDED IN COST OF
    SALES REDUCED GROSS MARGINS FOR NORTH AMERICA BY $4.1 MILLION, EUROPE BY
    $1.7 MILLION AND ROW BY $1.4 MILLION.
 
    For the first nine months of fiscal 1998, the Company achieved sales growth
of 27.2% in North America, 18.5% in Europe and 6.8% in ROW. Excluding the
aforementioned acquisitions, North America achieved internally generated sales
growth of 7.6%. North America gross margins as a percent of sales were 28.4%,
compared to 29.1% in the prior period, excluding the special charges. Gross
margins as a percent of sales for Europe were 30.8% compared to 32.3% in the
prior year, excluding the special charges. ROW gross margins as a percent of
sales were 29.4% compared to 28.4% in the prior year, excluding the special
charges. The margin comparisons reflect the higher contribution from SSD sales,
competitive pressures affecting SSC margins and lower margins realized on sales
to one European customer.
 
    Selling, general and administrative expenses increased to $48.5 million in
the first nine months of fiscal 1998 compared with $46.5 million in the prior
year. The prior year expenses included special charges of $3.8 million for
accounts receivable provisions, severance and other costs associated with a
corporate reorganization. As a percentage of sales, selling, general and
administrative expenses were reduced to 21.7% compared with 23.2% in the prior
year, excluding the special charges.
 
    Collectively, special charges affecting net income before extraordinary item
in the third quarter of fiscal 1997 amounted to $11.0 million pre-tax or $6.7
million, net of tax, reducing earnings per share by $.56. The Company also
recorded an $800,000 extraordinary charge for the write-off of unamortized debt
issuance costs attributable to the 7 1/4% convertible debentures, which were
exchanged for a new issue. Net of tax, the charge was $488,000, or $.04 per
share.
 
                                       18
<PAGE>
RESULTS OF OPERATIONS--FISCAL YEAR ENDED MAY 31, 1997 COMPARED TO FISCAL 1996
  AND FISCAL 1995
 
    SALES AND GROSS MARGIN ANALYSIS
 
    Consolidated sales in fiscal 1997 were a record $255.1 million. Sales and
gross margin data by SBU are summarized in the following table (in thousands):
<TABLE>
<CAPTION>
                                                    SALES                                          GROSS MARGINS
                       ----------------------------------------------------------------  ---------------------------------
                        FISCAL      % OF      FISCAL      % OF      FISCAL      % OF      FISCAL                  FISCAL
                         1995       TOTAL      1996       TOTAL      1997       TOTAL      1995     % OF SALES     1996
                       ---------  ---------  ---------  ---------  ---------  ---------  ---------     -----     ---------
<S>                    <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>          <C>
EDG..................  $ 105,454       50.7  $ 109,925       45.8  $ 113,700       44.6  $  30,884        29.3   $  33,416
SSC..................     52,409       25.2     67,976       28.4     74,209       29.1     16,416        31.3      20,840
DPG..................     36,502       17.5     36,154       15.1     29,377       11.5     12,463        34.1      13,156
SSD..................     13,753        6.6     25,612       10.7     37,853       14.8      3,037        22.1       5,425
                       ---------  ---------  ---------  ---------  ---------  ---------  ---------               ---------
  Total..............  $ 208,118      100.0  $ 239,667      100.0  $ 255,139      100.0     62,800        30.2      72,837
                       ---------  ---------  ---------  ---------  ---------  ---------
                       ---------  ---------  ---------  ---------  ---------  ---------
Other................                                                                       (7,467)                 (2,293)
                                                                                         ---------               ---------
  Consolidated.......                                                                    $  55,333        26.6   $  70,544
                                                                                         ---------               ---------
                                                                                         ---------               ---------
 
<CAPTION>
 
                                     FISCAL
                       % OF SALES     1997     % OF SALES
                          -----     ---------     -----
<S>                    <C>          <C>        <C>
EDG..................        30.4   $  32,220        28.3
SSC..................        30.7      19,923        26.8
DPG..................        36.4       8,465        28.8
SSD..................        21.2       8,267        21.8
                                    ---------
  Total..............        30.4      68,875        27.0
 
Other................                  (1,411)
                                    ---------
  Consolidated.......        29.4   $  67,464        26.4
                                    ---------
                                    ---------
</TABLE>
 
    Sales and gross margin data by geographic area are summarized in the
following table (in thousands):
<TABLE>
<CAPTION>
                                                    SALES                                          GROSS MARGINS
                       ----------------------------------------------------------------  ---------------------------------
                        FISCAL      % OF      FISCAL      % OF      FISCAL      % OF      FISCAL                  FISCAL
                         1995       TOTAL      1996       TOTAL      1997       TOTAL      1995     % OF SALES     1996
                       ---------  ---------  ---------  ---------  ---------  ---------  ---------     -----     ---------
<S>                    <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>          <C>
North America........  $ 123,508       59.4  $ 139,743       58.3  $ 153,221       60.1  $  37,100        30.0   $  41,257
Europe...............     46,071       22.1     57,219       23.9     55,881       21.9     14,753        32.0      19,186
Rest of World........     38,539       18.5     42,705       17.8     46,037       18.0     10,947        28.4      12,394
                       ---------  ---------  ---------  ---------  ---------  ---------  ---------               ---------
  Total..............  $ 208,118      100.0  $ 239,667      100.0  $ 255,139      100.0     62,800        30.2      72,837
                       ---------  ---------  ---------  ---------  ---------  ---------
                       ---------  ---------  ---------  ---------  ---------  ---------
Other................                                                                       (7,467)                 (2,293)
                                                                                         ---------               ---------
  Consolidated.......                                                                    $  55,333        26.6   $  70,544
                                                                                         ---------               ---------
                                                                                         ---------               ---------
 
<CAPTION>
 
                                     FISCAL
                       % OF SALES     1997     % OF SALES
                          -----     ---------     -----
<S>                    <C>          <C>        <C>
North America........        29.5   $  40,514        26.4
Europe...............        33.5      16,194        29.0
Rest of World........        29.0      12,167        26.4
                                    ---------
  Total..............        30.4      68,875        27.0
 
Other................                  (1,411)
                                    ---------
  Consolidated.......        29.4   $  67,464        26.4
                                    ---------
                                    ---------
</TABLE>
 
    North American sales increased 9.6% in 1997, following a 13.1% increase in
1996. In both years, the sales gains were primarily attributable to SSD and, to
a lesser extent, SSC and EDG. Sales in Europe declined 2.3% in 1997, after a
24.2% increase in 1996. In 1997, sales gains by SSD and SSC were more than
offset by a 32.6% decline in DPG European sales from the loss of a single large
customer. In 1996, SSD, DPG and SSC all had European sales gains in excess of
50%. ROW sales increased 7.8% in 1997, following a 10.8% gain in 1996. In both
years, the largest ROW sales gains were achieved by SSD and SSC.
 
    Sales denominated in currencies other than U.S. dollars were 43.1%, 42.3%
and 39.2% of total sales in 1997, 1996 and 1995, respectively. Exchange rate
changes reduced foreign sales by an average of 2.9% in 1997 and increased
foreign sales by 1.0% in 1996. Sales and gross margin trends are analyzed for
each strategic business unit in the following sections.
 
    ELECTRON DEVICE GROUP.  The electron tube industry in which EDG operates is
characterized by mature products, the presence of tube rebuilders and vigorous
price competition. The Company estimates that overall industry sales are
modestly contracting. EDG's sales gains of 3.4% and 4.2% in 1997 and 1996,
respectively, result from an increase in market share. International sales
accounted for 56.5%, 56.5% and 56.6% of EDG's sales in 1997, 1996 and 1995,
respectively.
 
    The medical imaging replacement business is a growth segment of the electron
tube industry. Demand for the replacement of x-ray, computed tomography (CT),
medical resonance imaging (MRI) and radiation therapy components is expected to
continue to grow in response to the cost effectiveness of purchasing rebuilt
components from the Company as opposed to purchasing new or rebuilt products
directly from original equipment manufacturers. Richardson expanded its medical
sales force in 1996 and 1997. In addition, the Company acquired x-ray tube and
image intensifier reloading facilities in the United States in 1996 and in 1997
established a reloading facility in the Netherlands. Sales in the medical EDG
product line
 
                                       19
<PAGE>
increased 56.5% to $17.5 million in 1997, following a 110% increase in 1996.
Other product lines within EDG which are growing include microwave generators,
pulse power tubes, industrial magnetrons and broadcast transmitters.
 
    Gross margins were affected in 1997 by the special charges described below
in "--Cost of Sales and Gross Margins." Excluding the special charges, gross
margins as a percent of sales increased to 30.6% in 1997, compared to 30.4% and
29.3% in 1996 and 1995, respectively. The gross margin percentage improvements
in 1997 and 1996 resulted from heightened focus on pricing policies, proprietary
product lines and value-added services.
 
    SOLID STATE AND COMPONENTS.  SSC operates in several markets, including the
rapidly growing wireless telecommunications industry. Sales increased 9.2% in
1997 to $74.2 million, following a 29.7% increase in 1996. Sales in 1997 were
adversely impacted by the loss of a major vendor which resulted in a $9.6
million decline in sales. The Company has been successful in replacing a portion
of these sales with products from other vendors and the acquisition of
complimentary product lines. In October 1996, the Company purchased Compucon, a
distributor of interconnect devices operating in the northeastern United States
with annual sales prior to the acquisition of $7.9 million. International sales
represented 37.6%, 36.3% and 36.2% of SSC's sales in 1997, 1996 and 1995,
respectively.
 
    Gross margins were affected in 1997 by the special charges described below
in "--Cost of Sales and Gross Margins." Excluding the special charges, gross
margins as a percent of sales were 30.1% in 1997, compared to 30.7% and 31.3% in
1996 and 1995, respectively. The decline in gross margins as a percentage of
sales reflects competitive pricing pressures and a change in product mix.
 
    DISPLAY PRODUCTS GROUP.  DPG sales declined 18.7% in 1997 and 1.0% in 1996.
The 1997 sales decline is largely attributable to the loss of a single customer
in Europe. Sales in both years were hampered by product shortages, primarily for
color cathode ray tubes ("CRTs"), as glass manufacturers were unable to meet
market demand. DPG's product mix had been shifting from monochrome to higher
priced color CRTs for several years. This trend was interrupted in 1997 due to
the aforementioned product shortages, as color CRTs represented 15.6% of units
sold in 1997, compared to 18.0% and 16.0% in 1996 and 1995, respectively.
International sales represented 46.1%, 51.4% and 34.9% of DPG's sales in 1997,
1996 and 1995, respectively.
 
    Gross margins were affected in 1997 by the special charges described below
in "--Cost of Sales and Gross Margins." Excluding the special charges, gross
margins as a percent of sales were 35.1% in 1997 compared to 36.4% and 34.1% in
1996 and 1995, respectively. Industry shortages of color CRTs in 1997 had an
unfavorable effect on product mix and gross margins. Improved gross margins,
comparing 1996 to 1995, reflect the shift in product mix to higher margin color
CRTs.
 
    SECURITY SYSTEMS DIVISION.  SSD specializes in products for the growing
electronic security equipment market, particularly closed circuit television
("CCTV") components and systems. In February 1997, the Company acquired Burtek,
a Canadian security systems distributor with annual sales of $18.0 million. This
acquisition follows the decision by the Company to significantly increase the
SSD sales staff in 1995. These factors contributed to the 47.8% growth in sales
in 1997 and the 86.2% sales growth in 1996. International sales represented
47.7%, 38.8% and 39.3% of SSD's sales in 1997, 1996 and 1995, respectively.
 
    Gross margins were 21.8%, 21.2% and 22.1% of sales in 1997, 1996 and 1995,
respectively. Inventory turnover rates achieved by SSD are higher than the
Company's other SBUs, which mitigates the effect of lower gross margin.
 
                                       20
<PAGE>
    COST OF SALES AND GROSS MARGINS
 
    The following table reconciles product margins to gross margin data (% of
sales) reported in the Statements of Operations:
 
<TABLE>
<CAPTION>
                                                                               1995       1996       1997
                                                                             ---------  ---------  ---------
<S>                                                                          <C>        <C>        <C>
Product margin.............................................................       30.7%      31.0%      29.9%
Overstock provisions.......................................................       (0.5)      (0.1)      (3.0)(1)
Customer returns and scrap.................................................       (0.6)      (0.7)      (0.3)
Manufacturing and warranty costs...........................................       (0.5)      (0.3)      (0.1)
Claim settlement...........................................................       (2.2 (2)        --        --
Other costs................................................................       (0.3)      (0.5)      (0.1)
                                                                             ---------  ---------  ---------
  Gross margin.............................................................       26.6%      29.4%      26.4%
                                                                             ---------  ---------  ---------
                                                                             ---------  ---------  ---------
</TABLE>
 
- ------------------------
 
(1)  IN CONJUNCTION WITH A CORPORATE REORGANIZATION AND REVIEW OF OPERATIONS,
    AND IN RESPONSE TO CHANGED MARKET CONDITIONS, THE COMPANY RE-EVALUATED ITS
    RESERVES FOR OVERSTOCK INVENTORY IN THE THIRD QUARTER OF FISCAL 1997. AS A
    RESULT OF THIS REVIEW, THE COMPANY PROVIDED A $7.2 MILLION CHARGE TO COST OF
    SALES.
 
(2)  IN THE FOURTH QUARTER OF FISCAL 1995, THE COMPANY PAID $4.7 MILLION TO
    SETTLE A MONETARY CLAIM RELATED TO A CONTRACT COMPLETED IN 1989 FOR CERTAIN
    NIGHT-VISION TUBES.
 
    Fluctuations in product margin percentages primarily reflect the shift in
product mix. Lower gross margin SSD sales have increased and higher gross margin
DPG sales have declined as a percent of consolidated sales. Product margins are
also affected by changes in selling prices, product costs and foreign exchange
rate variations.
 
    SELLING, GENERAL AND ADMINISTRATIVE EXPENSES
 
    Selling, general and administrative expenses represented 24.4%, 22.1% and
23.4% of sales in 1997, 1996 and 1995, respectively. In 1997, selling, general
and administrative expenses includes $3.8 million in special charges for
severance and other costs related to a corporate reorganization. Excluding the
special charges, 1997 selling, general and administrative expenses were 22.9% of
sales and increased $5.6 million over 1996, reflecting business acquisitions and
the expansion of the EDG medical and SSC sales forces. Selling, general and
administrative expenses in 1996 increased $4.3 million over 1995 as a result of
expansion of the SSC and SSD sales forces and incentive payments on higher gross
margins.
 
    OTHER (INCOME) EXPENSE
 
    Interest expense increased to $7.6 million in 1997 compared to $6.6 million
and $6.5 million in 1996 and 1995, respectively, primarily due to higher
borrowing levels. Investment income declined to $392,000 in 1997 from $1.2
million in 1996 and $1.9 million in 1995 as a result of lower investment levels
and lower realized capital gains. Fluctuations in foreign exchange and other
expenses primarily reflect changes in the value of the U.S. dollar relative to
foreign currencies. A general strengthening of the dollar in fiscal 1997, and to
a lesser extent in 1996, resulted in net foreign exchange losses, while the
weakening of the dollar in fiscal 1995 generated exchange gains for Richardson.
 
    INCOME TAX PROVISION
 
    The effective income tax rates for the Company were 63.1%, 32.5% and 5.7% in
fiscal 1997, 1996 and 1995, respectively. The effective rate of the 1997 income
tax benefit differs from the statutory rate of 34% due to the utilization of
foreign operating losses where no tax benefit was recorded in prior years, the
Company's foreign sales corporation benefit on export sales and state income
taxes. The 1995 rate differs from the U.S. statutory rate of 34% as a result of
the carryback of the $4.7 million contract settlement to prior years at a 46%
statutory rate.
 
                                       21
<PAGE>
    NET INCOME (LOSS) AND PER SHARE AMOUNTS
 
    The comparability of net income (loss) and net income (loss) per share for
1997, 1996 and 1995 is affected by several unusual charges. In 1997, the special
charge for severance and other costs related to a corporate reorganization and
the re-evaluation of certain reserves reduced net income by $6.7 million, or
$.56 per share. In addition, the extraordinary loss resulting from the write-off
of the original issuance costs on convertible debentures which were exchanged
reduced net income by $488,000, or $.04 per share. In 1995, the settlement of a
1989 contract dispute resulted in a reduction in net income of $2.3 million, or
$.20 per share. Additionally in 1995, the Company recorded an extraordinary
gain, net of tax, of $527,000, or $.05 per share, on the repurchase of certain
of its convertible debentures.
 
FINANCIAL CONDITION
 
    LIQUIDITY
 
    In order to provide rapid response and superior customer service as a
distributor of replacement parts, Richardson maintains relatively high levels of
electron tube, semiconductor and CRT inventories. Some of these products
represent trailing-edge technology which may not be available from other
sources, and may not be currently manufactured. Also, in many cases, the
products are components of production equipment for which immediate availability
is critical to the customer.
 
    Liquidity is provided by the operating activities of the Company, adjusted
for non-cash items, and is reduced by working capital requirements, debt
service, capital expenditures, dividends and capital acquisitions. Comparing
fiscal years, cash provided by (used in) operations was $3.6 million in 1997,
$(7.9) million in 1996 and $(6.7) million in 1995. Additional investments in
working capital to support rising sales were $7.3 million, $22.0 million and
$14.6 million in 1997, 1996 and 1995, respectively. Higher accounts receivable
balances in each year reflect growth in sales. Inventory levels were held
approximately constant in 1997, in spite of higher sales, after increases in
1996 and 1995. Other working capital requirements in 1995 included $6.3 million
for severance and other payments related to the phase-down of certain
manufacturing operations.
 
    Comparing the first nine months of fiscal 1998 to 1997, cash provided by
operations was $9.0 million in 1998, compared to $1.6 million in the prior year.
Working capital changes reduced cash by $2.5 million compared to $6.9 million
the prior year. Accounts payable increased $5.5 million compared to a decline of
$1.0 million, reflecting the timing of inventory purchases. Accounts receivable
increased $4.8 million in the current year, as a result of sales growth.
Business acquisitions, capital expenditures and dividend payments were funded
primarily by cash generated by operations or borrowings under the Company's
credit facilities.
 
    At May 31, 1997, the Company had net operating loss carryforwards of $14.5
million for U.S. federal and state income tax purposes which are available to
offset future tax liabilities. Earnings levels are expected to be sufficient to
utilize these carryforwards before they expire.
 
    The Company has proposed a plan to the Illinois Environmental Protection
Agency to monitor and process soil and groundwater at the LaFox facility.
Contamination is believed to have resulted from practices previously employed at
the site. The present value of the estimated future remediation costs was
$631,000 at February 28, 1998 and was included as an accrued liability in the
Company's financial statements at that date.
 
    After the application of the net proceeds from the sale of Common Stock by
the Company in this Offering, the Company believes that cash generated from
operations and amounts available under its credit agreements will be sufficient
for the Company to meet its working capital and capital expenditure needs for
its operations as presently conducted for the foreseeable future. See
"Financing." The Company's growth strategy includes growth through acquisitions.
The net proceeds from the sale of Common Stock by the Company in this Offering,
together with cash generated from operations, may not be
 
                                       22
<PAGE>
adequate to finance such acquisitions and the Company may be required to seek
additional financing. Further, there can be no assurance that other financing
would be available in amounts and on terms acceptable to the Company.
 
    FINANCING
 
    In the first quarter of 1997, the Company amended its $25.0 million senior
revolving credit note agreement to increase the credit line to $35.0 million and
in November 1997 extended its maturity to January 31, 1999. Effective March 1,
1998, this facility was replaced by a new $50.0 million revolving credit
agreement which expires March 1, 2001. The loan bears interest at prime or 100
basis points over the London InterBank Offering Rate, at the Company's option.
 
    On February 15, 1997, the Company exchanged $40.0 million of new 8 1/4%
convertible debentures for an equivalent face value of its outstanding 7 1/4%
convertible debentures. See Note F to the Consolidated Financial Statements. The
principal purpose of the exchange was to improve the Company's future liquidity
and capital position by refinancing a sufficient number of the debentures to
eliminate sinking fund requirements until December 15, 2004.
 
    To complete the acquisition of Burtek, the Company entered into a revolving
credit agreement and term loan aggregating $6.0 million. An additional $5.5
million was borrowed under this agreement in August 1997 to finance the
acquisition of Security Services International. At February 28, 1998, $8.5
million remained outstanding under this agreement. The loan bears interest at
the Canadian prime rate and expires March 1, 2001.
 
    In connection with the Company's debt agreements, certain restrictions exist
relating to the purchase of treasury stock and the payment of cash dividends and
other distributions on the Company's Common Stock. At March 1, 1998, $10.0
million was free of such restrictions. Annual dividend payments approximate $1.9
million. The policy regarding payment of dividends is reviewed periodically by
the Board of Directors in light of the Company's operating needs and capital
structure.
 
QUARTERLY RESULTS OF OPERATIONS
 
    The following table presents unaudited summarized quarterly operating
results for the Company for each of the four quarters in fiscal 1997 and the
first three quarters of fiscal 1998. Third quarter 1997 results include
valuation reserve adjustments and severance and other costs which reduced gross
margin by $7.2 million, operating income by $11.0 million and net income by $6.7
million, as described in Note B to the Consolidated Financial Statements. Such
quarterly results of operations are not necessarily indicative of the results of
operations for any future period.
 
<TABLE>
<CAPTION>
                                                                FISCAL 1997                            FISCAL 1998
                                                 ------------------------------------------  -------------------------------
                                                   FIRST     SECOND      THIRD     FOURTH      FIRST     SECOND      THIRD
(IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)          8/31/96   11/30/96    2/28/97    5/31/97    8/31/97   11/30/97    2/28/98
                                                 ---------  ---------  ---------  ---------  ---------  ---------  ---------
<S>                                              <C>        <C>        <C>        <C>        <C>        <C>        <C>
Net sales......................................  $  57,544  $  62,167  $  64,163  $  71,265  $  71,600  $  78,646  $  73,196
Gross margin...................................     16,783     18,738     11,171     20,772     20,638     22,348     20,860
Operating income (loss)........................      3,449      4,687     (7,952)     4,947      4,828      5,642      4,851
Net income (loss) before extraordinary item....      1,293      1,932     (6,053)     1,823      1,808      2,740      2,182
Extraordinary loss, net of tax.................         --         --       (488)        --         --         --         --
Net income (loss)..............................      1,293      1,932     (6,541)     1,823      1,808      2,740      2,182
Net income (loss) per share before
 extraordinary item - diluted..................  $     .11  $     .16  $    (.51) $     .15  $     .15  $     .22  $     .17
Net income (loss) per share - diluted..........  $     .11  $     .16  $    (.55) $     .15  $     .15  $     .22  $     .17
Average shares outstanding.....................     12,209     12,121     11,908     12,067     12,228     12,575     12,626
</TABLE>
 
                                       23
<PAGE>
CURRENCY FLUCTUATIONS
 
    The Company's foreign denominated assets and liabilities are cash, accounts
receivable, inventory and accounts payable, primarily in member countries of the
European community and, to a lesser extent, in Canada, Asia/Pacific and Latin
America. The Company monitors its foreign exchange exposure and may enter into
forward contracts to hedge significant transactions. Other tools which may be
used to manage foreign exchange exposures include the use of currency clauses in
sales contracts and the use of local debt to offset asset exposures.
 
IMPACT OF YEAR 2000
 
    The year 2000 issue is the result of computer programs which are written
using two digits rather than four to define the applicable year. Such programs
may be incapable of correctly processing information beginning in the year 2000;
which could be read as 1900 or 2000. The Company's current computer database
correctly stores date stamps which include four digit years. Based on a recent
assessment, the Company anticipates its systems will function properly with
respect to dates in the year 2000 and thereafter. In addition, the Company does
not anticipate significant year 2000 issues relating to interface systems with
third parties. Based upon the foregoing, the Company does not currently expect
that the year 2000 issue will have a material impact on its financial condition
or results of operations.
 
                                       24
<PAGE>
                                    BUSINESS
 
INTRODUCTION AND BUSINESS STRATEGY
 
    Richardson Electronics, Ltd. is a specialized international distributor of
electronic components, equipment and assemblies primarily for niche industrial
applications. Its products include electron tubes, microwave generators, radio
frequency ("RF") and microwave components, power semiconductors, data display
monitors and electronic security products and systems. These products are used
to control, switch or amplify electrical power or signals, or as display,
recording or alarm devices in a variety of industrial, communication, medical
and scientific applications. Richardson differentiates itself by providing
engineered solutions to its customers. Its capabilities extend beyond simple
product distribution to include specialty product manufacturing and systems
integration and include value-added services such as component assembly,
prototype design and manufacture, testing, kitting and logistics.
 
    The Company's objective is to be the preeminent international supplier of
niche electronic components to industrial and commercial users. To fulfill this
objective, the Company employs the following basic strategies:
 
    CAPITALIZE ON ENGINEERING AND MANUFACTURING EXPERTISE.  Richardson believes
that its success is largely attributable to its core engineering and
manufacturing competency and skill in identifying cost competitive solutions for
its customers. Historically, the Company's primary business was the distribution
and manufacture of electron tubes and it continues to be a major distributor of
these products. Today, the Company out-sources manufacturing requirements for
products sold in volume, but retains its engineering and manufacturing
expertise, leveraging this knowledge in finding engineered solutions for the
customers' applications, not only in electron tube technology but in each of the
product areas in which it specializes. Approximately 45% of the Company's sales
are derived from products the Company electronically or physically modifies or
sells under its own brand names.
 
    SPECIALIZE IN SELECTED NICHE MARKETS.  The Company specializes in selected
niche markets which demand technical service and where price is not the primary
competitive factor. Richardson seldom competes against commodity distributors.
In many parts of its business, the Company's principal competitors are not other
distributors but rather original equipment manufacturers ("OEMs"). The Company
offers engineered solutions to its customers including the design, prototype
manufacturing and/or electrical or mechanical modification and distribution of
approximately 80,000 products ranging in price from $1 to $100,000 each. The
Company estimates that over 60% of its sales are attributable to products
intended for replacement and repair applications, in contrast to use as
components in original equipment.
 
    LEVERAGE CUSTOMER BASE.  The Company strives to grow by offering new
products to its existing customer base. The Company has followed the migration
of its customers from electron tubes to newer technologies primarily
semiconductors. Sales of products other than electron tubes represented 61.2% of
sales in the nine-month period ended February 28, 1998, compared to 35.3% five
years ago.
 
    MAINTAIN SUPERIOR CUSTOMER SERVICE.  The Company maintains more than 300,000
part numbers in its inventory data base. More than 80% of all orders received by
6:00 p.m. are shipped complete the same day.
 
    PROVIDE GLOBAL SERVICE.  Richardson has kept pace with the globalization of
the electronics industry, and addresses the growing demands in lesser developed
countries for modern business and industrial equipment, as well as related
parts, service and technical assistance. Today, the Company's operations are
worldwide in scope through 88 sales offices, including 31 located outside of
North America. In fiscal 1997, 48.5% of sales were derived from outside the
United States.
 
    MAINTAIN STATE-OF-THE-ART INFORMATION SYSTEMS.  Through a global,
information systems network, all offices have real-time access to the Company's
database including customer information, product cross-referencing, competitive
market analysis, stock availability and quotation activity. Customers have
on-line
 
                                       25
<PAGE>
access to product information via Richardson's web site. The Company offers
electronic data interchange to those customers requiring this type of service.
 
GROWTH STRATEGY
 
    Richardson's long range plan for growth and profit maximization is defined
in three broad categories: internal growth, continuous operational improvement
and acquisitions. Each category is discussed in the following paragraphs:
 
    INTERNAL GROWTH.  The Company believes that, in most circumstances, internal
growth provides the best means of expanding its business. Both geographic and
product line expansion have and will be employed. In many instances,
Richardson's original product line, electron tubes, provides the foundation for
establishing new customer relationships, particularly in developing countries
where older technologies are still predominately employed. From that base, the
Company can identify and capitalize on new market opportunities for its other
products. Over the last five years the Company has expanded its sales offices
from 22 to 88 to support its new business development efforts.
 
    Expansion of the Company's product offerings is an on-going program. Of
particular note, the following areas have generated significant recent sales
gains: microwave generators; medical imaging components; amplifiers,
transmitters and pallets for wireless communication; and CCTV security systems.
Additional opportunities currently being explored include flat panel displays,
monitors and solar energy power tubes.
 
    CONTINUOUS OPERATIONAL IMPROVEMENT.  During the last two years, the Company
embarked on a vigorous program to improve operating efficiencies and asset
utilization. Incentive programs were revised to heighten Richardson managers'
commitment to these goals. As a result, selling, general and administrative
expenses as a percent of sales were reduced from 23.4% in fiscal 1995 to 21.7%
in the first nine months of fiscal 1998. Inventory turns improved from 1.7 to
2.1 over the same period. Additional programs are on-going. The Company believes
European logistics and stocking levels may offer additional opportunities for
cost savings.
 
    ACQUISITIONS.  The Company has a successful record of acquiring and
integrating businesses. Since 1980, 23 companies or significant product lines
have been acquired by the Company. The Company evaluates acquisition
opportunities on an ongoing basis. The Company's acquisition criteria require
that a target provide either (i) product line growth opportunities permitting
Richardson to leverage its existing customer base or (ii) additional geographic
coverage of Richardson's existing product offerings. In the last two years, the
Company's acquisition pace has accelerated with the purchases of six businesses
including, most significantly, Tubemaster (medical imaging--EDG), Compucon
(interconnect devices for RF applications--SSC) and Burtek and Security Service
International (security systems--SSD).
 
STRATEGIC BUSINESS UNITS
 
    The marketing, sales, product management and purchasing functions of
Richardson are organized as four strategic business units: Electron Device Group
("EDG"), Solid State and Components ("SSC"), Display Products Group ("DPG") and
Security Systems Division ("SSD"). Common logistics, information systems,
finance, legal, human resources and general administrative functions support the
entire organization. The Company is highly centralized with most corporate
functions located at its administrative headquarters and principal stocking
facility in LaFox, Illinois.
 
    ELECTRON DEVICE GROUP
 
    EDG's principal products, electron tubes, are used to control, switch,
oscillate or amplify electrical power. This technology has been used for more
than 80 years in electronic circuitry throughout the industrialized world. With
such a vast installed base, replacement applications represent EDG's primary
 
                                       26
<PAGE>
focus. In certain situations, including high power broadcasting and industrial
equipment, electron tubes are the only economical technology capable of meeting
power requirements or withstanding severe environmental or other operating
conditions.
 
    EDG serves a multitude of industries including automotive, avionics,
communications, marine, plastics, rubber, steel and textile. Several major
applications include dielectric and induction heating, motor speed controls,
radar, resistance welding equipment and television and radio broadcast
equipment. Microwave generator systems are designed and assembled by the Company
for use in the manufacture of wafers for the semiconductor industry and other
industrial heating applications.
 
    In addition to the industries set forth above, Richardson believes the
increased emphasis on containment of medical costs offers significant
opportunities to supply the diagnostic medical imaging market, estimated by the
Company at $900 million. EDG distributes high voltage switch tubes, x-ray tubes
and image intensifiers used in x-ray imaging equipment and specialty tubes for
analytical equipment, as well as camera tubes, photomultipliers, switch tubes,
magnetrons, hydrogen thyratrons and imaging equipment to the medical industry.
In the last several years, the Company has capitalized on its engineering skill,
expanding its product offering to include assistance in systems integration and
upgrades of existing medical equipment to incorporate state-of-the-art imaging
systems. In 1996, Richardson purchased two North American x-ray tube reloading
facilities. During 1997, the Company continued its growth in the medical imaging
market and established a European facility to supply the European market with
reloaded x-ray tubes. Additionally, EDG has broadened its product offerings to
include microwave generators used in semiconductor wafer fabrication and other
industrial heating applications.
 
    Certain sectors of the electron tube market in which the Company
participates are modestly contracting due to the continued substitution of
semiconductor technology for traditional electron tube applications. EDG is
expanding its customer base beyond North America and Europe. As industrialized
countries convert to solid state, the used equipment employing tube technology
is being redeployed to lesser developed areas of the world. Richardson's global
expansion is, in part, to capitalize on this opportunity. The annual global
market for electron tubes served by EDG is estimated by the Company to be more
than $3.0 billion. As a result of product line and global expansion, EDG sales
increased in each of the last three years.
 
    The following is a description of EDG's major product groups:
 
    POWER AMPLIFIER / OSCILLATOR TUBES are vacuum or gas-filled tubes used in
applications where current or voltage amplification and/or oscillation is
required. Some areas of use are induction heating, diathermy equipment,
communications and radar systems and power supplies for voltage regulation or
amplification.
 
    X-RAY TUBES AND X-RAY IMAGE INTENSIFIERS are glass and glass/metal vacuum
tubes which generate high-frequency radiation for use in industrial, analytical
and medical equipment. Stationary anode x-ray tubes are used primarily for
inspection and non-destructive testing of solid materials and in
crystallography. Rotating anode x-ray tubes are primarily used in medical
applications, including fluoroscopy and computer-aided tomography (CAT-scan).
 
    INDUSTRIAL RECEIVING TUBES are vacuum tubes used to regulate or amplify
small amounts of power in a wide variety of electrical and electronic equipment.
Communications, medical instrumentation, consumer electronics, audiophile and
industrial controls are typical applications for this product.
 
    MICROWAVE GENERATORS incorporate magnetrons which are high vacuum oscillator
tubes used to generate energy at microwave frequencies. The pulsed magnetron is
predominantly used to generate high energy microwave signals for radar
applications. Magnetrons are also used in vulcanizing rubber, in the manufacture
of wafers for the semiconductor industry and other industrial heating
applications such as microwave ovens and by the medical industry for
sterilization.
 
                                       27
<PAGE>
    IGNITRONS are mercury pool tubes used to control the flow of large amounts
of electrical current. Their primary applications are in welding equipment,
power conversion, fusion research and power rectification equipment.
 
    HYDROGEN THYRATRONS are electron tubes capable of high speed and high
voltage switching. They are used to control the power in laser and radar
equipment and in linear accelerators for cancer treatment.
 
    THYRATRONS AND RECTIFIERS are vacuum or gas-filled tubes used to control the
flow of electrical current. Thyratrons are used to control ignitrons, electric
motor speed controls, theatrical lighting and machinery such as printing presses
and various types of medical equipment. Rectifiers are used to restrict electric
current flow to one direction in power supply applications.
 
    SOLID STATE AND COMPONENTS
 
    SSC focuses its broad product offerings on two specialized markets. SSC
serves many of the same customers and industries as EDG. Because of the
Company's expertise in electron tube technology, it developed a strong
competency in wireless communications and industrial applications requiring high
power. SSC sells (i) Radio Frequency ("RF") and microwave components and (ii)
power semiconductors and related components. In addition to the distribution of
products, SSC provides design, prototype assembly, kitting, testing and other
essential services to these markets. SSC's RF and microwave components are used
by the emerging wireless and telecommunications markets as well as Richardson's
traditional communications, broadcast and avionics customers. SSC's power
semiconductors and related components serve industrial markets in power
conversion applications.
 
    The majority of SSC's business is with OEMs. Because time-to-market is so
critical in today's electronics industry, OEMs are outsourcing engineering
design-in of devices and components. Richardson employs its core engineering
expertise and distribution competency in wireless and industrial applications to
meet customer requirements for design-in and prototype assembly of silicon
controlled rectifier assemblies, amplifiers, pallets and transmitters.
 
    In October 1996, the Company acquired Compucon, a distributor of
inter-connect devices operating in the northeastern United States. The
acquisition brought to the Company a new product line and management with the
specialized knowledge of its applications. The Company believes that it can
achieve significant growth in this line by expanding Compucon's regional
specialization through its worldwide sales network.
 
    The following is a description of SSC's major product groups:
 
    RF POWER TRANSISTORS are solid-state, high-frequency power amplifiers used
in broadcast, cellular, aircraft and satellite communications and in many types
of electronic instrumentation. The Company designs and provides prototype
assemblies of amplifiers and pallets incorporating RF power transistors. In many
circumstances, the customer prefers to acquire the complete assembly as opposed
to the discrete transistor.
 
    HIGH VOLTAGE AND POWER CAPACITORS are used in industrial, avionics, medical
and broadcast applications for filtering, high-current by-pass, feed-through
capacitance for harmonic attenuation, pulse shaping, grid and plate blocking,
tuning of tank circuits, antenna coupling and energy discharge.
 
    SILICON CONTROLLED RECTIFIERS ("SCRS"), HEAT SINK ASSEMBLIES AND POWER
SEMICONDUCTOR MODULES are used in many industrial control applications because
of their ability to switch large amounts of power at high speeds. These silicon
power devices are capable of operating at up to 4,000 volts at 2,000 amperes.
 
    INTER-CONNECT DEVICES are passive components used to connect all types of
electronic equipment including those employing RF technology.
 
                                       28
<PAGE>
    DISPLAY PRODUCTS GROUP
 
    DPG sells data display and instrumentation cathode ray tubes ("CRTs") that
are used in data display, marine, medical, radar and avionic applications. It
recently expanded its product line to include flat panel displays and monitors.
DPG's primary market is users of replacement CRTs and related components,
principally large manufacturing and service companies. Its customer base also
includes both independent and original equipment service organizations.
Richardson estimates annual factory sales of CRTs in the global market to be $12
billion. DPG offers a cost effective alternative to purchasing a complete data
display monitor by replacing only the defective CRT. In addition to product
sales, DPG provides engineered solutions to its customers including; system
integration, extensive cross-referencing and other value-added capabilities that
enable DPG to offer off-the-shelf availability for more than 200,000
manufacturers' part numbers from an inventory of approximately 200 standard
CRTs.
 
    Computer terminals and monitors, broadcast monitors, viewfinders and
TelePrompTers-Registered Trademark-, radar and instrumentation displays are some
of the many product applications. Large mainframe systems, using multiple data
display terminals, represent the largest market served by DPG. Typical users
include hospitals, airports, airlines, brokerage offices, banks, television
studios, utilities and assembly lines.
 
    The following is a description of DPG's major product groups:
 
    CATHODE RAY TUBES are vacuum tubes which convert an electrical signal into a
visual image to display information on computer terminals or televisions. CRTs
are used in various environments, including hospitals, financial institutions,
airports and numerous other applications wherever electronic data is shared by
large user groups. The product line includes both monochrome and color tubes.
 
    DATA DISPLAY MONITORS are peripheral components incorporating a color or
monochrome CRT capable of displaying an analog or digitally generated video
signal.
 
    FLAT PANEL DISPLAYS are display monitors incorporating a liquid crystal
display or plasma panel, rather than a CRT, typically a few inches in depth and
ranging from 10" to 42" measured diagonally.
 
    SECURITY SYSTEMS DIVISION
 
    SSD serves the commercial security and surveillance industry with a primary
emphasis on closed circuit television ("CCTV") systems and components. SSD's
strategy is to leverage Richardson's existing customer base of FORTUNE 500
customers and other large end-users, as opposed to security dealers or
retailers. SSD's principal value-added service is system design. The Company
believes heightened concerns over crime and the increasing incidence of
liability claims, industrial and commercial organizations are expanding the use
of CCTV systems to monitor and document activities in a wide range of
applications. Industry sources estimate that North American wholesale sales of
CCTV and related security equipment were $750 million in 1997 with a projected
annual growth rate of 10% through 2000. In addition to its CCTV product
offerings, SSD provides electronic components for burglar and fire detection
systems, access control systems and commercial sound systems.
 
    Technology is changing continuously in the electronic surveillance industry.
SSD offers its customers engineered solutions including systems integration,
education and training. These engineered solutions assure SSD's customers remain
at the forefront of the industry in terms of product knowledge and end user
requirements.
 
    SSD's sales increased significantly in 1996 and 1997. Acquisitions and a
significant increase in SSD's field sales force were principally responsible for
these significant sales gains. In February 1997, the Company acquired Burtek and
in August 1997 acquired Security Services International, both of which are
security systems distributors operating in Canada, with combined annual sales of
$38 million.
 
    The following is a description of SSD's major product groups:
 
                                       29
<PAGE>
    CCTV PRODUCTS which include cameras, lenses, monitors, scanners, time lapse
recorders and associated accessories, are used in surveillance applications and
for monitoring hazardous environments in the workplace.
 
    BURGLAR AND FIRE DETECTION SYSTEMS are devices used to detect unauthorized
access to an area or the presence of smoke or fire.
 
    COMMERCIAL SOUND SYSTEMS are sound reproduction components used in
background music, paging and telephonic interconnect systems.
 
DISTRIBUTION AND MARKETING
 
    The Company purchases vacuum tubes, RF and power semiconductors, related
electronic components and electronic security products and systems from various
sources, including Burle Industries, Clinton Electronics, Communication and
Power Industries ("CPI"), Covimag, Ericsson, General Electric, Huber & Suhner,
Jennings, Litton, M/A-COM, MPD, New Japan Radio, Orion/Daewoo, Panasonic, Pelco,
Philips, Powerex, Samsung, Samtell, Sanyo, SGS THOMSON, Semtech, Sensormatic,
Sony, Teletube, Toshiba, Triton Services, and Varian Associates. No single
outside supplier currently accounts for more than 10% of the Company's purchases
in any year, other than CPI, which accounted for 10.3%, 12.6% and 16.6% of
purchases in fiscal 1997, 1996 and 1995, respectively.
 
    In 1991 the Company settled an antitrust suit with the U.S. Department of
Justice related to its participation in the electron tube manufacturing
industry. As a consequence, certain of its manufacturing activities became
uneconomic and were divested or discontinued. Covimag is the entity formed to
acquire the Company's former Brive, France manufacturing operation. Formal
transfer of ownership occurred in January 1995. Covimag is managed by the same
individuals previously employed by the Company at this facility. Under an
evergreen agreement, the Company negotiates a purchase commitment on an annual
basis. Covimag is highly dependent on Richardson, which is its primary customer.
Settlement of purchases under the contract are at standard terms. Except for the
supply contract, Richardson has no other financial commitment to or from
Covimag. Relationships under the supply contract are believed by the Company to
be satisfactory.
 
    In addition to the agreement with Covimag, the Company has marketing
distribution agreements with various manufacturers in the electron tube,
semiconductor and CCTV industries. The most significant distributor agreement is
with CPI under which the Company is the exclusive distributor of power grid
tubes throughout the world, with the exception of the United States and certain
Eastern European countries. In these areas, however, the Company remains the
only CPI stocking distributor.
 
    Customer orders are taken by the regional sales offices and generally
directed to one of Richardson's principal distribution facilities in LaFox,
Illinois; Houston, Texas; Vancouver, British Columbia; or Lincoln, England.
There are 28 additional stocking locations throughout the world. The Company
utilizes a sophisticated data processing network which provides on-line,
real-time interconnection of all sales offices and central distribution
operations. Information on stock availability, cross-reference information,
customers and competitive market analyses are instantly obtainable throughout
the entire distribution network.
 
MANUFACTURING
 
    The Company distributes its proprietary products principally under the trade
names "National," "Cetron," "RF Gain" and "Amperex." Approximately 22% of the
Company's sales are from products it manufactures or modifies through
value-added services, primarily at its LaFox, Illinois facility. The Company
also sells products under these brand names made by independent manufacturers to
the Company's specifications.
 
    The products currently manufactured by the Company, or subcontracted on a
proprietary basis for the Company, include thyratrons and rectifiers, power
tubes, ignitrons, microwave generators, solar collector
 
                                       30
<PAGE>
power tubes, electronic display tubes, phototubes, SCR assemblies, spark gap
tubes, RF amplifiers, transmitters and pallet assemblies. Richardson reloads and
remanufactures medical x-ray tube housings. The materials used in the
manufacturing process consist of glass bulbs and tubing, nickel, stainless steel
and other metals, plastic and metal bases, ceramics and a wide variety of
fabricated metal components.
 
EMPLOYEES
 
    As of February 28, 1998, the Company employed 798 individuals on a full-time
basis. Of these, 471 are located in the United States, including 61 employed in
administrative and clerical positions, 312 in sales and distribution and 98 in
value-added and product manufacturing. The Company's international subsidiaries
employ an additional 327 individuals engaged in administration, sales and
distribution. All of Richardson's employees are non-union. The Company's
relationship with its employees is considered to be good.
 
COMPETITION
 
    Richardson believes that, on a global basis, it is a significant distributor
of electron tubes, RF and power semiconductors and subassemblies, CRTs and
security systems. For many of its product offerings, the Company competes
against the OEM for sales of replacement parts and system upgrades to service
existing installed equipment. In addition, the Company competes worldwide with
other general line distributors and other distributors of electronic components.
 
PATENTS AND TRADEMARKS
 
    The Company holds or licenses certain manufacturing patents and trademark
rights, including the trademarks "National," "Cetron" and "Amperex." The Company
believes that although the patents and trademarks obtained have value, they will
not determine the Company's success, which depends principally upon its core
engineering capability, marketing technical support, product delivery and the
quality and economic value of its products.
 
PROPERTIES
 
    The Company's corporate facility and largest distribution center is owned by
the Company and is located on approximately 300 acres in LaFox, Illinois,
consisting of approximately 255,000 square feet of manufacturing, warehouse and
office space. Richardson also owns a building containing approximately 45,000
square feet of warehouse space on 1.5 acres in Geneva, Illinois. Owned
facilities outside of the United States are located in England, Spain and Italy.
 
    The Company also maintains branch sales offices in or near major cities
throughout the world, including 62 locations in North America, 12 in Europe, 9
in the Far East / Pacific Rim and 3 in Latin America. The Company leases
production facilities in Texas, Virginia and the Netherlands for its medical
tube reloading operation. The Company also leases a facility from a trust, of
which Edward J. Richardson, Chairman of the Board of the Company, is the
principal beneficiary. Such facility is used by SSD as its sales office and
warehouse. Under the terms of this lease, the Company is obligated to make
rental payments of $68,705 per year, expiring in 1999. The lease is on terms no
less favorable to the Company than similar leases which would be available from
unrelated third parties.
 
LITIGATION
 
    The Company is a defendant in PANACHE BROADCASTING OF PENNSYLVANIA V.
RICHARDSON ELECTRONICS, LTD. in United States District Court, Northern District
of Illinois, filed in 1990. The complaint purports to be a class action on
behalf of all persons and businesses in the United States who purchased electron
power tubes from one or more of the defendant corporations at any time since
February 26, 1986. The complaint
 
                                       31
<PAGE>
alleges antitrust violations and seeks treble damages, injunctive relief and
attorneys fees. The Company has denied the material allegations. The case
remains primarily in the preliminary discovery stage.
 
    The Company is also a defendant in ARIUS, INC. V. RICHARDSON ELECTRONICS,
LTD. pending in state court in Orlando, Florida. The complaint filed in 1995
alleges a breach of a confidentiality agreement between Richardson and Arius and
other causes of action against Richardson and three employees. The court entered
an order prohibiting, among other things, contact by Richardson and one of its
employees with Arius customers, except in the ordinary course of business.
Shortly after entry of this order, Arius filed a Chapter 7 bankruptcy petition
and ceased to be a going concern. In early 1998, Arius' bankruptcy trustee filed
a motion seeking to penalize Richardson for having made sales to alleged Arius
customers subsequent to the date Arius filed its bankruptcy petition. Richardson
is vigorously contesting this motion and has asserted, among other things, that
it had no contact with alleged Arius customers except in the ordinary course of
business and that Arius' bankruptcy terminated Arius' customer relationships.
 
    From time to time the Company is involved in other litigation arising in the
normal course of its business which is not expected to have a material adverse
effect on the Company.
 
                                       32
<PAGE>
                                   MANAGEMENT
 
EXECUTIVE OFFICERS AND DIRECTORS
 
    The following table sets forth certain information regarding the executive
officers and members of the Board of Directors of the Company.
 
<TABLE>
<CAPTION>
NAME                                     AGE      POSITION(S)
- -----------------------------------      ---      -----------------------------------------------------------------------
<S>                                  <C>          <C>
Edward J. Richardson...............          56   Chairman of the Board and Chief Executive Officer
 
Bruce W. Johnson...................          57   President, Chief Operating Officer and Director
 
William J. Garry...................          50   Vice President of Finance, Chief Financial Officer and Director
 
Bart F. Petrini....................          59   Executive Vice President-Electron Device Group
 
Norman A. Hilgendorf...............          37   Vice President-Solid State and Components
 
Charles J. Acurio..................          38   Executive Vice President-Display Products Group
 
Flint Cooper.......................          36   Executive Vice President-Security Systems Division
 
Robert Prince......................          36   Executive Vice President of Worldwide Sales
 
Pierluigi Calderone................          40   Vice President and Managing Director of European Operations
 
William G. Seils...................          62   Senior Vice President, General Counsel and Secretary
 
Joseph C. Grill....................          53   Vice President-Human Resources
 
Arnold R. Allen....................          66   Director
 
Jacques Bouyer.....................          69   Director
 
Kenneth J. Douglas.................          75   Director
 
Scott Hodes........................          60   Director
 
Ad Ketelaars.......................          41   Director
 
Harold L. Purkey...................          53   Director
 
Samuel Rubinovitz..................          68   Director
</TABLE>
 
    Mr. Richardson has been employed by the Company or its predecessor since
1961, holding several positions. He was Chairman of the Board, President and
Chief Executive Officer from September 1989 until November 1996, when Mr.
Johnson became President. Mr. Richardson continues to hold the offices of
Chairman of the Board and Chief Executive Officer.
 
    Mr. Johnson has been President, Chief Operating Officer and Director since
joining the Company in November 1996. Prior thereto, from January 1992 until
January 1996, he was president of Premier Industrial Corporation, a New York
Stock Exchange listed company which was acquired by Farnell Ltd. in April 1996.
He was executive vice president of Premier from February 1987 until January
1992. Premier is a full service business to business supplier of electronic
components for industrial and consumer products, essential maintenance and
repair products for industrial, commercial and institutional applications and
manufactured high-performance fire-fighting equipment.
 
    Mr. Garry has been Vice President of Finance, Chief Financial Officer and
Director since joining the Company in June 1994. Prior to joining the Company he
was vice president of finance and chief financial officer and a director of GEO
International Corporation of Chicago, Illinois from August 1986 until May 1994.
GEO International Corporation filed a voluntary petition for bankruptcy
protection in October 1993 and emerged from bankruptcy under a plan of
reorganization effective May 12, 1995.
 
                                       33
<PAGE>
    Mr. Petrini has been Executive Vice President - EDG since February 1998. He
was Vice President - EDG from April 1994 until February 1998. From June 1989
until joining Richardson in April 1994, he was a consultant with Petrini, Frank
& Co.
 
    Mr. Hilgendorf has been Vice President - SSC since January 1998. He joined
the Company in May 1994 and has served as Product Manager and Business Unit
Manager in SSC from May 1994 until January 1998. From June 1990 until May 1994
he was employed by W. W. Grainger, Inc.
 
    Mr. Acurio has been Executive Vice President - DPG since February 1998. He
was Vice President - DPG from April 1993 until February 1998 and prior thereto
held the titles of CRT Division Manager and DPG Strategic Business Unit Manager
since June 1988.
 
    Mr. Cooper has been Executive Vice President - SSD since joining the Company
in November 1994. He was director of CCTV sales with Arius, Inc. from February
1991 until November 1994 and purchasing agent at ADT Security Systems, a
distributor of electronic security equipment, from August 1988 to January 1991.
 
    Mr. Prince has been Executive Vice President of Worldwide Sales since
February 1998 and was Vice President of Worldwide Sales from November 1996 until
February 1998. He was Vice President of Sales from October 1992 until November
1996 and held several other positions since joining the Company in November
1978.
 
    Mr. Calderone has been Vice President and Managing Director of European
Operations since March 1998. He joined the Company in July 1990 as District
Sales Manager for Italy and served as Regional Sales Manager of Italy from
February 1991 until March 1998.
 
    Mr. Seils has been Senior Vice President since January 1992 and General
Counsel and Secretary since May 1986. Prior to joining the Company in 1986, he
was a partner in the law firm of Arvey, Hodes, Costello and Burman, Chicago,
Illinois.
 
    Mr. Grill has been Vice President - Human Resources since October 1993 and
was Vice President - Corporate Administration from January 1992 until October
1993. He served in other office capacities of the Company since joining it in
October 1987.
 
    Mr. Allen has been a Director of the Company since September 1985 when he
also joined the Company as its President and Chief Operating Officer. He retired
as President of the Company in September 1989. Since his retirement Mr. Allen
has been a management consultant and presently provides management consulting
services to Richardson. He served as Chairman of the Strategic Planning
Committee of the Company's Board of Directors from April 1991 until April 1992.
 
    Mr. Bouyer has been a Director of the Company since 1990. He served as
chairman of the board of Philips Composants of Paris, France, engaged in the
manufacture and sale of electronic components and a subsidiary of N.V. Philips
of The Netherlands, from April 1, 1990 until January 1, 1994 when he became
honorary chairman of the board and a director until December 31, 1995. Mr.
Bouyer also was vice chairman of the BIPE Institute for Economic and Market
Research from 1981 until 1997. He has been a consultant in business strategies
and management since January 1994. Mr. Bouyer is serving Richardson as an
independent management consultant principally with respect to European matters.
He is also a director of LTX Corporation.
 
    Mr. Douglas has been a Director of the Company since 1987. He was vice
chairman of Dean Foods Company for the period from December 1988 to September
1992, when he retired. Prior to becoming vice chairman, he served as chairman of
Dean Foods for many years. He is now the chairman of the board of West Suburban
Hospital Medical Center. He is also a director of Andrew Corporation.
 
    Mr. Hodes has been a Director of the Company since 1983 and is a partner at
the law firm of Ross & Hardies, which firm provides legal services to the
Company.
 
                                       34
<PAGE>
    Mr. Ketelaars has been a Director of the Company since April 1996 and
presently serves the Company as an employee of certain foreign subsidiaries. He
joined Richardson as Vice President and Managing Director of Europe in May 1993
and resigned from that position effective May 31, 1996 to become chief executive
officer of EnerTel, a new telecommunications company established by Dutch
electric utility companies and CATV companies. Prior to joining Richardson he
was general manager of Philips Printed Circuit Boards since 1988 and product
group manager professional tubes of Philips Components since 1987.
 
    Mr. Purkey has been a Director of the Company since 1994. He has been
president of Forum Capital Markets L.P. since May 1997 and senior managing
director of such company since May 1994. From July 1990 until February 1994 he
was employed by Smith Barney Shearson, holding the position of senior managing
director and manager of the convertible bond department.
 
    Mr. Rubinovitz has been a Director of the Company since 1984. He also serves
Richardson as a consultant. He was executive vice president of EG&G, Inc., a
diversified manufacturer of instruments and components, from April 1989 until
his retirement in January 1994. He is also chairman of the board of directors of
LTX Corporation, and a director of KLA-Tencor Corporation and Kronos, Inc.
 
                                       35
<PAGE>
                       PRINCIPAL AND SELLING STOCKHOLDERS
 
    The following table sets forth certain information concerning the beneficial
ownership of the Common Stock as of January 31, 1998 and as adjusted to reflect
the sale of 1,500,000 shares of Common Stock by the Company and the sale of
1,500,000 shares of Common Stock by the Selling Stockholder, by (i) each person
known by the Company to be the beneficial owner of more than 5% of the
outstanding Common Stock, (ii) the Selling Stockholder, (iii) each director of
the Company, (iv) each of the executive officers of the Company and (v) all
executive officers and directors of the Company as a group. Since Class B Common
Stock is convertible into Common Stock the number of shares listed as owned
under the Common Stock column in the table also includes the number of shares of
Class B Common Stock owned by such person.
 
    Edward J. Richardson, Chairman of the Board and Chief Executive Officer is
offering to sell 1,500,000 shares of Common Stock (and an additional 225,000
shares if the Underwriters elect to exercise their over-allotment option). No
other stockholder of the Company is selling any shares in this Offering.
 
<TABLE>
<CAPTION>
                                                         COMMON STOCK AND CLASS B COMMON STOCK
                                                                   BENEFICIALLY OWNED
                                                PRIOR TO OFFERING                       AFTER OFFERING
                                       ------------------------------------  ------------------------------------
                                        NUMBER OF                  TOTAL      NUMBER OF                  TOTAL
                                        SHARES OF     PERCENT     VOTING      SHARES OF     PERCENT     VOTING
      NAME OF BENEFICIAL OWNER          COMMON (1)   OF CLASS   PERCENT (2)   COMMON (1)   OF CLASS   PERCENT (2)
- -------------------------------------  ------------  ---------  -----------  ------------  ---------  -----------
<S>                                    <C>           <C>        <C>          <C>           <C>        <C>
Edward J. Richardson.................    5,856,521(3)     48.2%      83.6%     4,356,521       31.9%       77.2%
Scott Hodes..........................       43,424(4)         *          *        43,424           *           *
Samuel Rubinovitz....................       40,431(5)         *          *        40,431           *           *
Arnold R. Allen......................       76,223(6)         *       1.0%        76,223           *           *
Kenneth J. Douglas...................       46,344(7)         *          *        46,344           *           *
Jacques Bouyer.......................       37,000(8)         *          *        37,000           *           *
William J. Garry.....................       32,428(9)         *          *        32,428           *           *
Harold L. Purkey.....................       17,000(10)         *          *       17,000           *           *
Ad Ketelaars.........................       44,800(11)         *          *       44,800           *           *
Bruce W. Johnson.....................       20,250(12)         *          *       20,250           *           *
Bart F. Petrini......................       29,683           *           *        29,683           *           *
Norman A. Hilgendorf.................        1,652           *           *         1,652           *           *
Charles J. Acurio....................       12,828(13)         *          *       12,828           *           *
Flint Cooper.........................        8,885           *           *         8,885           *           *
Robert Prince........................       36,177           *           *        36,177           *           *
Pierluigi Calderone..................        5,400(14)         *          *        5,400           *           *
William G. Seils.....................       60,276(15)         *          *       60,276           *           *
Joseph C. Grill......................       47,638           *           *        47,638           *           *
Royce & Associates, Inc..............    1,107,686(16)     12.4%      12.4%    1,107,686       10.6%       10.6%
  Royce Management Company
  and Charles M. Royce
  1414 Avenue of the Americas
  New York, New York 10019
T. Rowe Price Associates, Inc........      743,652(17)      8.3%       8.3%      743,652        7.1%        7.1%
  100 East Pratt Street
  Baltimore, Maryland 21202
Loomis Sayles & Company, L.P.            1,009,240(18)     10.2%      10.2%    1,009,240        8.9%        8.9%
  One Financial Center
  Boston, MA 02111
</TABLE>
 
                                       36
<PAGE>
<TABLE>
<CAPTION>
                                                         COMMON STOCK AND CLASS B COMMON STOCK
                                                                   BENEFICIALLY OWNED
                                                PRIOR TO OFFERING                       AFTER OFFERING
                                       ------------------------------------  ------------------------------------
                                        NUMBER OF                  TOTAL      NUMBER OF                  TOTAL
                                        SHARES OF     PERCENT     VOTING      SHARES OF     PERCENT     VOTING
      NAME OF BENEFICIAL OWNER          COMMON (1)   OF CLASS   PERCENT (2)   COMMON (1)   OF CLASS   PERCENT (2)
- -------------------------------------  ------------  ---------  -----------  ------------  ---------  -----------
<S>                                    <C>           <C>        <C>          <C>           <C>        <C>
Kalmar Investments, Inc. ............      517,614(19)      5.8%       5.8%      517,614        4.9%        4.9%
  Barley Mill House
  3701 Kenner Pike
  Greenville, DE 19807
Investment Advisors, Inc. ...........      479,700(20)      5.4%       5.4%      479,700        4.6%        4.6%
  3700 First Bank Place,
  Box 357
  Minneapolis, MN 55440
Executive Officers and Directors as a    6,416,960       50.8%       85.8%     4,916,960       34.8%       79.3%
  group (18 persons)
</TABLE>
 
- ------------------------
 
(*) Less than 1%.
 
 (1) Except as noted, beneficial ownership of each of the shares listed is
     comprised of either sole investment and sole voting power, or investment
     power and voting power that is shared with the spouse of the Director or
     officer, or voting power that is shared with the Trustees of the Company's
     Employees Stock Ownership Plan ("ESOP") with respect to shares identified
     as allocated to the individual's ESOP account.
 
 (2) Common Stock is entitled to one vote per share and Class B Common Stock is
     entitled to ten votes per share. Computation assumes that Class B Common
     Stock held or subject to acquisition pursuant to stock option is not
     converted into Common Stock.
 
 (3) Includes 3,191,421 shares of Common Stock which would be issued upon
     conversion of Mr. Richardson's Class B Common Stock (which represents 98.4%
     of such Class), 23,006 shares of Common Stock allocated to the account of
     Mr. Richardson under the ESOP and 804 shares of Common Stock which would be
     issued upon conversion of $17,000 principal amount of the Corporation's
     7 1/4% Convertible Subordinated Debentures, and 4,611 shares of Common
     Stock which would be issued upon conversion of $83,000 principal amount of
     the Corporation's 8 1/4% Convertible Senior Subordinated Debentures owned
     by a Trust of which Mr. Richardson is a co-trustee and as such shares
     investment and voting power. Does not include 10,900 shares of Common Stock
     held by William G. Seils as custodian for Mr. Richardson's sons, Alexander
     and Nicholas, as to which Mr. Richardson disclaims beneficial ownership.
 
 (4) Includes 3,712 shares of Common Stock which would be issued upon conversion
     of Mr. Hodes' Class B Common Stock. Also includes 35,000 shares of Common
     Stock to which Mr. Hodes holds stock options exercisable within 60 days.
 
 (5) Includes 825 shares of Common Stock which would be issued upon conversion
     of Mr. Rubinovitz' Class B Common Stock. Also includes 35,000 shares of
     Common Stock to which Mr. Rubinovitz holds stock options exercisable within
     60 days.
 
 (6) Includes 37,393 shares of Common Stock to which Mr. Allen holds stock
     options exercisable within 60 days and an additional 37,393 shares of
     Common Stock which would be issued upon conversion of 37,393 shares of
     Class B Common Stock as to which he also holds stock options exercisable
     within 60 days.
 
 (7) Includes 1,347 shares of Common Stock which would be issued upon conversion
     of Mr. Douglas' Class B Common Stock. Also includes 35,000 shares of Common
     Stock to which Mr. Douglas holds stock options exercisable within 60 days.
 
                                       37
<PAGE>
 (8) Includes 35,000 shares of Common Stock to which Mr. Bouyer holds stock
     options exercisable within 60 days.
 
 (9) Includes 17,000 shares of Common Stock to which Mr. Garry holds stock
     options exercisable within 60 days. Also includes 1,485 shares of Common
     Stock allocated to the account of Mr. Garry under the ESOP.
 
 (10) Includes 15,000 shares of Common Stock as to which Mr. Purkey holds stock
      options exercisable within 60 days.
 
 (11) Includes 44,800 shares of Common Stock as to which Mr. Ketelaars holds
      stock options exercisable within 60 days.
 
 (12) Includes 250 shares allocated to the account of Mr. Johnson under the
      ESOP. Does not include an additional 55,000 shares under options which are
      not yet vested.
 
 (13) Includes 7,500 shares of Common Stock as to which Mr. Acurio holds stock
      options exercisable within 60 days and 5,228 shares of Common Stock
      allocated to the account of Mr. Acurio under the ESOP.
 
 (14) Includes 1,900 shares of Common Stock as to which Mr. Calderone holds
      stock options exercisable within 60 days.
 
 (15) Includes 50,970 shares of Common Stock as to which Mr. Seils holds stock
      options exercisable within 60 days. Also includes 8,123 shares of Common
      Stock allocated to the account of Mr. Seils under the ESOP. Does not
      include 10,900 shares of Common Stock held by Mr. Seils as custodian for
      Mr. Richardson's sons, Alexander and Nicholas.
 
 (16) Charles M. Royce may be deemed a controlling person of Royce & Associates,
      Inc. ("Royce") and Royce Management Company ("RMC") which own 112,516
      shares of Common Stock and as such may be deemed to beneficially own the
      shares of Common Stock beneficially owned by Royce and RMC. Mr. Royce does
      not own any shares outside of Royce and RMC, and disclaims beneficial
      ownership of the shares held by Royce and RMC. Information disclosed in
      this table was obtained by reviewing Schedule 13G filed jointly by Royce,
      RMC and Mr. Royce on February 4, 1998.
 
 (17) These securities are owned by various individual and institutional
      investors including T. Rowe Price Small Cap Value Fund, Inc. which owns
      743,652 shares, representing 8.1% of the shares outstanding, which T. Rowe
      Price Associates, Inc. ("Price Associates") serves as investment adviser
      with power to direct investments and/or sole power to vote the securities.
      For purposes of the reporting requirements of the Securities Exchange Act
      of 1934, Price Associates is deemed to be a beneficial owner of such
      securities; however, Price Associates expressly disclaims that it is, in
      fact, the beneficial owner of such securities. Information disclosed in
      this table was obtained by reviewing Schedule 13G jointly filed by Price
      Associates and T. Rowe Price Small Cap Value Fund, Inc. on February 12,
      1998.
 
 (18) Loomis Sayles & Company, L.P. ("Loomis"), an investment advisor, shares
      the power to dispose of the shares and shares the power to vote 255,434
      shares. Clients of Loomis have the economic interest, but no one client
      has such an interest relating to more than 5% of the class. Loomis
      indicates that the shares reported for Loomis relate to such party's
      ownership of the Company's convertible debentures. Information disclosed
      in this table was obtained by reviewing Schedule 13G filed by Loomis on
      February 12, 1998.
 
 (19) Kalmar Investments, Inc. is an investment advisor having sole power to
      dispose of these shares. Information disclosed in this table was obtained
      by reviewing Schedule 13G filed by Kalmer Investments, Inc. on January 20,
      1998.
 
 (20) Investment Advisors, Inc. is an investment advisor reporting with respect
      to shares held by various custodian banks for various clients none of
      which hold more than 5% of the Common Stock, and shared voting and
      dispositive power with respect to 134,300 of such shares. Information
      disclosed in this table was obtained by reviewing Schedule 13G filed by
      Investment Advisors, Inc. on March 10, 1998.
 
                                       38
<PAGE>
                          DESCRIPTION OF CAPITAL STOCK
                                 AND DEBENTURES
 
    The Company is presently authorized to issue 30,000,000 shares of Common
Stock, par value $.05 per share ("Common Stock"), 10,000,000 shares of Class B
Common Stock, par value $.05 per share ("Class B Common Stock") and 5,000,000
shares of Preferred Stock, par value $1.00 per share ("Preferred Stock"). The
Preferred Stock may be issued in series at the election of the Board of
Directors which may fix the terms of each such series without further
stockholder action. No Preferred Stock is presently outstanding. Shares of Class
B Common Stock are subject to conversion into shares of Common Stock on a share
for share basis as described below. See "--Terms of Common Stock and Class B
Common Stock" below.
 
    The Company has $40,000,000 principal amount of 8 1/4% Convertible Senior
Subordinated Debentures due June 15, 2006 (the "8 1/4% Debentures"), and
$30,825,000 principal amount of 7 1/4% Convertible Subordinated Debentures due
December 15, 2006 (the "7 1/4% Debentures"), presently outstanding (the 8 1/4%
Debentures and the 7 1/4% Debentures are sometimes jointly referred to as the
"Debentures").
 
    The statements relating to the Common Stock, Class B Common Stock and
Debentures are summaries and do not purport to be complete. Such summaries use
terms defined in and are qualified in their entirety by express reference to
Article Fourth of the Restated Certificate of Incorporation of the Company and
the indentures under which the Debentures are issued.
 
TERMS OF COMMON STOCK AND CLASS B COMMON STOCK
 
    Except for voting by class in instances required by law, holders of Common
Stock and Class B Common Stock vote with holders of Preferred Stock (if any are
issued with voting rights) as a single class on all matters including the
election of directors, with each share of Common Stock having one vote and each
share of Class B Common Stock having ten votes. There is no cumulative voting in
the election of directors and stockholders voting a majority of the votes
(including Edward J. Richardson, who presently owns shares having approximately
83.6% of the voting power and 77.2% after completion of this Offering) at any
annual meeting will be able to elect all the directors to be elected, and the
minority will not be able to elect any directors.
 
    Subject to the terms and preferences of the Preferred Stock, if any is
issued from time to time and the limitations on cash dividends contained in the
indentures under which the 7 1/4% Debentures and 8 1/4% Debentures are issued,
the Common Stock and the Class B Common Stock rank equally and have the same
rights with respect to dividends and distributions, except that the Class B
Common Stock is entitled to receive 90% of the cash dividend declared and paid
on the Common Stock. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations" and Note F to the Consolidated Financial
Statements and "--Terms of Debentures."
 
    The Common Stock is freely transferable and shares of Common Stock may be
registered as requested by the holder thereof. Pursuant to the terms of the
Company's certificate of incorporation, shares of Class B Common Stock generally
are not freely transferable except to a family member or entity holding for the
benefit of the owner or a family member (a "Permitted Transferee"). A transfer
of Class B Common Stock to any person or entity other than a Permitted
Transferee results in the automatic conversion of such Class B Common Stock into
shares of Common Stock on a share-for-share basis. Shares of Class B Common
Stock are convertible into Common Stock on a share-for-share basis at all times
at the option of the holder thereof. Shares of Common Stock are not convertible
into shares of Class B Common Stock.
 
    If at any time the number of issued and outstanding shares of Class B Common
Stock falls below 10% of the aggregate number of issued and outstanding shares
of Common Stock, Class B Common Stock and Preferred Stock, all the outstanding
shares of Class B Common Stock immediately and automatically are converted into
shares of Common Stock.
 
                                       39
<PAGE>
    Pursuant to the terms of the Company's certificate of incorporation, the
Company cannot issue any additional shares of Class B Common Stock, except
pursuant to exercise of options already granted prior to December 10, 1986 under
Richardson's stock purchase or option plans or in connection with stock splits,
stock dividends, reclassifications or other subdivisions, unless such issuance
is authorized by the vote of holders of a majority of the outstanding shares of
Common Stock and Class B Common Stock voting separately as a class.
 
    Stockholders of the Company do not have preemptive or other rights to
subscribe for additional shares of either Common Stock or Class B Common Stock.
Neither the Common Stock nor the Class B Common Stock is callable or subject to
optional or mandatory redemption, except that shares of Class B Common Stock are
subject to automatic conversion into shares of Common Stock as described above.
 
TERMS OF DEBENTURES
 
    The 8 1/4% Debentures mature June 15, 2006 and bear interest at 8 1/4% per
annum, payable on each June 15 and December 15 to holders of record on June 1
and December 1, respectively. They can be converted into Common Stock at $18.00
per share, subject to certain adjustments. They are redeemable at any time at
100% of principal amount plus accrued interest. There are no sinking fund
provisions applicable to the 8 1/4% Debentures. They are unsecured obligations
of the Company, subordinated to all Senior Indebtedness (as defined in the
Indenture under which they are issued) of the Company. The 8 1/4% Debentures
rank senior in right of payment to the 7 1/4% Debentures.
 
    The 7 1/4% Debentures mature December 15, 2006 and bear interest at 7 1/4%
per annum, payable on each June 15 and December 15 to holders of record on June
1 and December 1, respectively. They can be converted into Common Stock at
$21.14 per share, subject to certain adjustments. They are redeemable at any
time at 100% of principal amount plus accrued interest. There is an annual
sinking fund payment of $6,225,000 due on each December 15, however, the Company
has acquired sufficient 7 1/4% Debentures to satisfy such requirement in full
through December 15, 2003. On December 15, 2004, $275,000 will be due and
$6,225,000 will be due on December 15, 2005. The 7 1/4% Debentures are unsecured
obligations of the Company, subordinated to all Senior Indebtedness (as defined
in the indenture under which they are issued) of Richardson.
 
                                       40
<PAGE>
                                  UNDERWRITING
 
    The underwriters named below (the "Underwriters"), acting through their
representatives, Cleary Gull Reiland & McDevitt Inc. and McDonald & Company
Securities, Inc. (the "Representatives"), have severally agreed, subject to the
terms and conditions of the underwriting agreement (the "Underwriting
Agreement") by and among the Company, the Selling Stockholder and the
Underwriters, to purchase from the Company and the Selling Stockholder the
number of shares of Common Stock set forth below opposite their respective
names, at the offering price less the underwriting discounts and commissions set
forth on the cover page of this Prospectus:
 
<TABLE>
<CAPTION>
                                         UNDERWRITERS                                            NUMBER OF SHARES
- -----------------------------------------------------------------------------------------------  -----------------
<S>                                                                                              <C>
Cleary Gull Reiland & McDevitt Inc.............................................................
McDonald & Company Securities, Inc.............................................................
 
                                                                                                 -----------------
      Total....................................................................................       3,000,000
                                                                                                 -----------------
                                                                                                 -----------------
</TABLE>
 
    The Underwriting Agreement provides that the obligations of the Underwriters
to pay for and accept delivery of the shares of Common Stock offered hereby are
subject to certain conditions precedent and that the Underwriters will purchase
all of the Common Stock offered hereby (other than those covered by the
over-allotment option described below) if any such shares are purchased.
 
    The Company and the Selling Stockholder have been advised by the
Representatives that the Underwriters propose to offer the Common Stock to the
public at the offering price set forth on the cover page of this Prospectus and
to certain dealers at such price less a concession not in excess of $      per
share. The Underwriters may allow, and such dealers may reallow, a concession
not in excess of $      per share to certain other dealers. After commencement
of the Offering, the offering price and other selling terms may be changed by
the Underwriters.
 
    Certain of the Underwriters and the selling group members that currently act
as market makers for the Common Stock may engage in "passive market making" in
the Common Stock on the Nasdaq National Market in accordance with Rule 103 of
Regulation M under the Exchange Act. Rule 103 permits, upon satisfaction of
certain conditions, underwriters and selling group members participating in a
distribution that are also Nasdaq market makers in the security being
distributed to engage in limited market making activity when Rule 101 would
otherwise prohibit such activity. Rule 103 prohibits underwriters and selling
group members engaged in passive market making generally from entering a bid or
effecting a purchase at a price that exceeds the highest bid for those
securities displayed on the Nasdaq National Market by a market maker that is not
participating in the distribution of the Common Stock. Each underwriter or
selling group member engaged in passive market making is subject to a daily net
purchase limitation equal to 30% of such entity's average daily trading volume
during the two full consecutive calendar months immediately preceding the date
of the filing of the Registration Statement of which this Prospectus forms a
part.
 
    The Company and the Selling Stockholder have granted the Underwriters an
option, exercisable not later than 30 days after the date of this Prospectus, to
purchase up to 450,000 additional shares of Common Stock from them pro rata, at
the public offering price less the underwriting discounts and commissions set
forth on the cover page of this Prospectus. To the extent that the Underwriters
exercise such option, each of the Underwriters will have a firm commitment to
purchase approximately the same percentage thereof which the number of shares of
Common Stock to be purchased by it shown in the above table bears to the
 
                                       41
<PAGE>
total number of shares offered by the Company and the Selling Stockholder
hereunder, and the Company and the Selling Stockholder will be obligated,
pursuant to the option, to sell such shares to the Underwriters. The
Underwriters may exercise such option only to cover over-allotments made in
connection with the sale of the Common Stock offered hereby. If purchased, the
Underwriters will offer such additional shares on the same terms as those on
which the 3,000,000 shares are being offered.
 
    The Company and the Selling Stockholder have agreed to indemnify the
Underwriters against, and to contribute to losses arising out of, certain civil
liabilities in connection with this Offering, including liabilities under the
Securities Act.
 
    Except in specified circumstances, the Company, the Selling Stockholder, and
the Company's executive officers and directors have agreed not to offer, sell,
transfer, pledge, contract to do the same, or otherwise dispose of any of their
shares of Common Stock or stock equivalents for a period of 120 days after the
closing date of this Offering without the prior written consent of Cleary Gull
Reiland & McDevitt Inc.
 
    The foregoing includes a summary of the principal terms of the Underwriting
Agreement and does not purport to be complete. Reference is made to the
Underwriting Agreement that is on file as an exhibit to the Registration
Statement of which this Prospectus forms a part.
 
                                 LEGAL MATTERS
 
    Certain legal matters in connection with the shares of Common Stock offered
hereby will be passed upon for the Company by Ross & Hardies, Chicago, Illinois.
Scott Hodes, a partner in Ross & Hardies, is also a Director of the Company and
beneficially owns 43,424 shares of Common Stock. Certain legal matters related
to the Offering will be passed upon for the Underwriters by McDermott, Will &
Emery, Chicago, Illinois.
 
                                    EXPERTS
 
    The consolidated financial statements of Richardson Electronics, Ltd. at May
31, 1997 and 1996, and for each of the three years in the period ended May 31,
1997, appearing in this Prospectus and Registration Statement have been audited
by Ernst & Young LLP, independent auditors, as set forth in their report thereon
appearing elsewhere herein, and are included in reliance upon such report given
upon the authority of such firm as experts in accounting and auditing.
 
                             AVAILABLE INFORMATION
 
    The Company is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and, in accordance
therewith, files reports, proxy statements and other information with the
Securities and Exchange Commission (the "Commission"). Such reports, proxy
statements and other information filed by the Company may be inspected and
copied at the public reference facilities maintained by the Commission at Room
1024, 450 Fifth Street, N.W., Judiciary Plaza, Washington, D.C. 20549, and at
the following Regional offices of the Commission: Chicago Regional Office, 500
West Madison Street, Suite 1400, Chicago, Illinois 60661; and New York Regional
Office, 7 World Trade Center, Suite 1300, New York, New York 10048. Copies of
such material may also be obtained at prescribed rates from the Public Reference
Section of the Commission at its principal office at 450 Fifth Street, N.W.,
Judiciary Plaza, Washington, D.C. 20549. In addition, electronically filed
registration statements, reports, proxy statements and other information
regarding the Company may be obtained on the Internet from the Commission's Web
site at http://www.sec.gov. The Common Stock is traded on the Nasdaq National
Market and certain of the Company's reports, proxy materials and other
information may be available for inspection at the offices of the National
Association of Securities Dealers, Inc., 1801 K Street, N.W., Washington, D.C.
20006.
 
                                       42
<PAGE>
    This Prospectus, which constitutes a part of a registration statement on
Form S-2 (the "Registration Statement") filed by the Company with the Commission
under the Securities Act, omits certain of the information set forth in the
Registration Statement. Reference is hereby made to the Registration Statement
and to the exhibits and schedules thereto for further information with respect
to the Company and the securities offered hereby. Statements contained herein
concerning the provisions of any contract or documents are necessarily summaries
of such documents, and each such statement is qualified in its entirety by
reference to the copy of the applicable document filed with the Commission,
although the Company believes such summaries accurately describe all material
provisions of such documents. Copies of the Registration Statement and the
exhibits and schedules thereto are on file at the offices of the Commission and
may be obtained upon payment of the fee prescribed by the Commission, or may be
examined without charge at the public reference facilities of the Commission
described above.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
    The following documents filed by the Company with the Commission are
incorporated by reference in this Prospectus: (i) Annual Report on Form 10-K for
the year ended May 31, 1997; (ii) Quarterly Reports on Form 10-Q and Form 10-Q/A
for the quarters ended August 31, 1997, November 30, 1997 and February 28, 1998;
and (iii) Proxy Statement for the Company's Annual Meeting of Stockholders held
on October 7, 1997.
 
    The Company will furnish without charge to each person to whom a copy of
this Prospectus is delivered, including any beneficial owner, upon written or
oral request, a copy of any or all of the documents incorporated by reference as
a part of the Registration Statement (other than exhibits to such documents,
except such exhibits as are specifically incorporated by reference into the
documents that this Prospectus incorporates). Requests should be directed to the
principal executive office of Richardson, 40W267 Keslinger Road, LaFox, Illinois
60147; Attention: Investor Relations, telephone number (630) 208-2371, fax (630)
208-2950, E-mail [email protected].
 
                                       43
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                                                PAGE
                                                                                                                -----
 
<S>                                                                                                          <C>
REPORT OF INDEPENDENT AUDITORS.............................................................................         F-2
 
CONSOLIDATED FINANCIAL STATEMENTS
 
  Consolidated Balance Sheets as of May 31, 1996 and 1997 and February 28, 1998 (unaudited)................         F-3
 
  Consolidated Statements of Operations for the years ended May 31, 1995, 1996 and 1997 and the nine month
    periods ended February 28, 1997 and 1998 (unaudited)...................................................         F-4
 
  Consolidated Statements of Cash Flows for the years ended May 31, 1995, 1996 and 1997 and the nine month
    periods ended February 28, 1997 and 1998 (unaudited)...................................................         F-5
 
  Consolidated Statements of Stockholders' Equity for the years ended May 31, 1995, 1996 and 1997 and the
    nine month period ended February 28, 1998 (unaudited)..................................................         F-6
 
  Notes to the Consolidated Financial Statements...........................................................         F-7
</TABLE>
 
                                      F-1
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
                         REPORT OF INDEPENDENT AUDITORS
 
Stockholders and Directors
Richardson Electronics, Ltd.
LaFox, Illinois
 
    We have audited the accompanying consolidated balance sheets of Richardson
Electronics, Ltd. and subsidiaries as of May 31, 1997 and 1996, and the related
consolidated statements of operations, cash flows and stockholders' equity for
each of the three years in the period ended May 31, 1997. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.
 
    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
    In our opinion, the financial statements referred to above present fairly,
in all material respects, the consolidated financial position of Richardson
Electronics, Ltd. and subsidiaries at May 31, 1997 and 1996, and the
consolidated results of their operations and cash flows for each of the three
years in the period ended May 31, 1997, in conformity with generally accepted
accounting principles.
 
                                          /s/ Ernst & Young LLP
 
Chicago, Illinois
July 8, 1997, except for
"Earnings per Share" in Note A
as to which the date is February 28, 1998
 
                                      F-2
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
                          CONSOLIDATED BALANCE SHEETS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                                                 MAY 31,
                                                                                         ------------------------
                                                                                            1996         1997
                                                                                         -----------  -----------  FEBRUARY 28,
                                                                                                                       1998
                                                                                                                   ------------
                                                                                                                   (UNAUDITED)
<S>                                                                                      <C>          <C>          <C>
                                                            ASSETS
 
CURRENT ASSETS
 
Cash and equivalents...................................................................  $     6,784  $    10,012   $    6,886
 
Receivables, less allowance of $1,461, $2,102 and $1,775...............................       48,232       53,333       58,786
 
Inventories............................................................................       94,327       92,194       93,777
 
Other..................................................................................        8,062       10,497        9,998
                                                                                         -----------  -----------  ------------
 
    TOTAL CURRENT ASSETS...............................................................      157,405      166,036      169,447
 
Investments............................................................................        2,190        2,152        2,776
 
Property, plant and equipment, net.....................................................       16,054       17,526       18,140
 
Other assets...........................................................................        4,509        6,800        9,291
                                                                                         -----------  -----------  ------------
 
    TOTAL ASSETS.......................................................................  $   180,158  $   192,514   $  199,654
                                                                                         -----------  -----------  ------------
                                                                                         -----------  -----------  ------------
 
                                             LIABILITIES AND STOCKHOLDERS' EQUITY
 
CURRENT LIABILITIES
 
Accounts payable.......................................................................  $    14,503  $    12,766   $   18,037
 
Accrued liabilities....................................................................        9,751       12,449       10,183
                                                                                         -----------  -----------  ------------
 
    TOTAL CURRENT LIABILITIES..........................................................       24,254       25,215       28,220
 
Long-term debt.........................................................................       92,025      107,275      105,623
 
Deferred income taxes..................................................................        1,087          434        1,600
                                                                                         -----------  -----------  ------------
 
    TOTAL LIABILITIES..................................................................      117,366      132,924      135,443
 
STOCKHOLDERS' EQUITY
 
Common Stock, $.05 par value...........................................................          428          437          449
 
Class B Common Stock, convertible, $.05 par value......................................          162          162          162
 
Preferred Stock, $1.00 par value.......................................................      --           --            --
 
Additional paid-in capital.............................................................       52,185       53,512       55,549
 
Retained earnings......................................................................       12,430        9,082       14,396
 
Foreign currency translation adjustment................................................       (2,413)      (3,603)      (6,345)
                                                                                         -----------  -----------  ------------
 
      TOTAL STOCKHOLDERS' EQUITY.......................................................       62,792       59,590       64,211
                                                                                         -----------  -----------  ------------
 
      TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY.......................................  $   180,158  $   192,514   $  199,654
                                                                                         -----------  -----------  ------------
                                                                                         -----------  -----------  ------------
</TABLE>
 
                SEE NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.
 
                                      F-3
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
                     CONSOLIDATED STATEMENTS OF OPERATIONS
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                                                                    FIRST NINE
                                                                                   FISCAL YEAR ENDED MAY 31,        MONTHS(1)
                                                                                  ----------------------------  ------------------
                                                                                    1995      1996      1997      1997      1998
                                                                                  --------  --------  --------  --------  --------
                                                                                                                (UNAUDITED)
<S>                                                                               <C>       <C>       <C>       <C>       <C>
NET SALES.......................................................................  $208,118  $239,667  $255,139  $183,874  $223,442
Cost of products sold...........................................................   152,785   169,123   187,675   137,182   159,596
                                                                                  --------  --------  --------  --------  --------
      Gross margin..............................................................    55,333    70,544    67,464    46,692    63,846
Selling, general and administrative expenses....................................    48,674    52,974    62,333    46,508    48,525
                                                                                  --------  --------  --------  --------  --------
      OPERATING INCOME..........................................................     6,659    17,570     5,131       184    15,321
Other (income) expense:
    Interest expense............................................................     6,473     6,624     7,622     5,588     6,218
    Investment income...........................................................    (1,863)   (1,238)     (392)     (249)     (534)
    Foreign exchange and other..................................................      (582)      173       626       173        27
                                                                                  --------  --------  --------  --------  --------
                                                                                     4,028     5,559     7,856     5,512     5,711
                                                                                  --------  --------  --------  --------  --------
      Income (loss) before income taxes and extraordinary item..................     2,631    12,011    (2,725)   (5,328)    9,610
Income tax provision (benefit)..................................................       150     3,900    (1,720)   (2,500)    2,880
                                                                                  --------  --------  --------  --------  --------
      Income (loss) before extraordinary item...................................     2,481     8,111    (1,005)   (2,828)    6,730
Extraordinary gain (loss), net of tax...........................................       527     --         (488)     (488)    --
                                                                                  --------  --------  --------  --------  --------
      NET INCOME (LOSS).........................................................  $  3,008  $  8,111  $ (1,493) $ (3,316) $  6,730
                                                                                  --------  --------  --------  --------  --------
                                                                                  --------  --------  --------  --------  --------
INCOME (LOSS) PER SHARE--BASIC:
  Before extraordinary item.....................................................  $    .22  $    .70  $   (.08) $   (.24) $    .56
  Extraordinary gain (loss), net of tax.........................................       .05     --         (.04)     (.04)    --
                                                                                  --------  --------  --------  --------  --------
    Net income (loss) per share.................................................  $    .27  $    .70  $   (.12) $   (.28) $    .56
                                                                                  --------  --------  --------  --------  --------
                                                                                  --------  --------  --------  --------  --------
  Average shares outstanding....................................................    11,425    11,659    11,892    11,886    12,096
                                                                                  --------  --------  --------  --------  --------
                                                                                  --------  --------  --------  --------  --------
INCOME (LOSS) PER SHARE--DILUTED:
  Before extraordinary item.....................................................  $    .21  $    .68  $   (.08) $   (.24) $    .54
  Extraordinary gain (loss), net of tax.........................................       .05     --         (.04)     (.04)    --
                                                                                  --------  --------  --------  --------  --------
    Net income (loss) per share.................................................  $    .26  $    .68  $   (.12) $   (.28) $    .54
                                                                                  --------  --------  --------  --------  --------
                                                                                  --------  --------  --------  --------  --------
  Average shares outstanding....................................................    11,566    12,002    11,892    11,886    12,476
                                                                                  --------  --------  --------  --------  --------
                                                                                  --------  --------  --------  --------  --------
Dividends per common share......................................................  $    .16  $    .16  $    .16  $    .12  $    .12
                                                                                  --------  --------  --------  --------  --------
                                                                                  --------  --------  --------  --------  --------
</TABLE>
 
- ------------------------
 
(1)  FOR THE NINE-MONTH PERIODS ENDED FEBRUARY 28, 1997 AND 1998, RESPECTIVELY.
 
                SEE NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.
 
                                      F-4
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)
<TABLE>
<CAPTION>
                                                                                                                  FIRST
                                                                                                                  NINE
                                                                                 FISCAL YEAR ENDED MAY 31,      MONTHS(1)
                                                                             ---------------------------------  ---------
                                                                                1995        1996       1997
                                                                             ----------  ----------  ---------    1997
                                                                                                                ---------
                                                                                                                (UNAUDITED)
<S>                                                                          <C>         <C>         <C>        <C>
OPERATING ACTIVITIES:
Net income (loss)..........................................................  $    3,008  $    8,111  $  (1,493) $  (3,316)
  Adjustments to reconcile net income (loss) to cash provided by (used in)
    operating activities:
      Depreciation.........................................................       2,669       2,709      2,627      1,973
      Amortization of intangibles and financing costs......................         427         360      1,318      1,091
      Deferred income taxes................................................       1,310       2,338     (3,305)    (3,026)
      Stock contribution to employee ownership plan........................         500         500        800        800
      Special charges......................................................      --          --         11,000     11,000
                                                                             ----------  ----------  ---------  ---------
      Net adjustments......................................................       4,906       5,907     12,440     11,838
                                                                             ----------  ----------  ---------  ---------
Changes in working capital, net of currency translation effects and
  business acquisitions:
      Receivables..........................................................      (7,215)     (5,310)    (4,277)    (3,549)
      Inventories..........................................................      (5,600)    (12,920)       406       (922)
      Other current assets.................................................        (429)      1,567        253       (845)
      Accounts payable.....................................................       5,079      (3,448)    (3,719)      (974)
      Accrued liabilities..................................................      (6,437)     (1,843)        28       (600)
                                                                             ----------  ----------  ---------  ---------
      Net changes in working capital.......................................     (14,602)    (21,954)    (7,309)    (6,890)
                                                                             ----------  ----------  ---------  ---------
      NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES..................      (6,688)     (7,936)     3,638      1,632
                                                                             ----------  ----------  ---------  ---------
FINANCING ACTIVITIES:
  Proceeds from borrowings.................................................       8,000      22,200     57,890     56,918
  Payments on debt.........................................................      (6,784)    (19,679)   (42,640)   (40,123)
  Proceeds from sale of common stock.......................................         145       1,713        536        218
  Cash dividends...........................................................      (1,779)     (1,822)    (1,855)    (1,389)
                                                                             ----------  ----------  ---------  ---------
      NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES..................        (418)      2,412     13,931     15,624
                                                                             ----------  ----------  ---------  ---------
INVESTING ACTIVITIES:
  Business acquisitions....................................................      --          (1,450)    (9,902)    (9,409)
  Capital expenditures.....................................................      (2,703)     (2,352)    (4,004)    (2,947)
  Sales of investments.....................................................      22,118      11,425      3,582      3,141
  Purchases of investments.................................................     (11,335)     (6,660)    (3,613)    (3,181)
  Other....................................................................         438         194       (404)       (99)
                                                                             ----------  ----------  ---------  ---------
      NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES..................       8,518       1,157    (14,341)   (12,495)
                                                                             ----------  ----------  ---------  ---------
      INCREASE (DECREASE) IN CASH AND EQUIVALENTS..........................       1,412      (4,367)     3,228      4,761
Cash and equivalents at beginning of year..................................       9,739      11,151      6,784      6,784
                                                                             ----------  ----------  ---------  ---------
      CASH AND EQUIVALENTS AT END OF PERIOD................................  $   11,151  $    6,784  $  10,012  $  11,545
                                                                             ----------  ----------  ---------  ---------
                                                                             ----------  ----------  ---------  ---------
 
<CAPTION>
 
                                                                                1998
                                                                             ----------
 
<S>                                                                          <C>
OPERATING ACTIVITIES:
Net income (loss)..........................................................  $    6,730
  Adjustments to reconcile net income (loss) to cash provided by (used in)
    operating activities:
      Depreciation.........................................................       2,606
      Amortization of intangibles and financing costs......................         366
      Deferred income taxes................................................       1,508
      Stock contribution to employee ownership plan........................         285
      Special charges......................................................      --
                                                                             ----------
      Net adjustments......................................................       4,765
                                                                             ----------
Changes in working capital, net of currency translation effects and
  business acquisitions:
      Receivables..........................................................      (4,758)
      Inventories..........................................................        (862)
      Other current assets.................................................          68
      Accounts payable.....................................................       5,504
      Accrued liabilities..................................................      (2,460)
                                                                             ----------
      Net changes in working capital.......................................      (2,508)
                                                                             ----------
      NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES..................       8,987
                                                                             ----------
FINANCING ACTIVITIES:
  Proceeds from borrowings.................................................      14,531
  Payments on debt.........................................................     (15,943)
  Proceeds from sale of common stock.......................................       1,764
  Cash dividends...........................................................      (1,416)
                                                                             ----------
      NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES..................      (1,064)
                                                                             ----------
INVESTING ACTIVITIES:
  Business acquisitions....................................................      (6,262)
  Capital expenditures.....................................................      (3,201)
  Sales of investments.....................................................       3,003
  Purchases of investments.................................................      (3,432)
  Other....................................................................      (1,157)
                                                                             ----------
      NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES..................     (11,049)
                                                                             ----------
      INCREASE (DECREASE) IN CASH AND EQUIVALENTS..........................      (3,126)
Cash and equivalents at beginning of year..................................      10,012
                                                                             ----------
      CASH AND EQUIVALENTS AT END OF PERIOD................................  $    6,886
                                                                             ----------
                                                                             ----------
</TABLE>
 
- ------------------------
 
(1)  FOR THE NINE-MONTH PERIODS ENDED FEBRUARY 28, 1997 AND 1998, RESPECTIVELY.
 
                SEE NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.
 
                                      F-5
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                       (SHARES AND DOLLARS IN THOUSANDS)
<TABLE>
<CAPTION>
                                                                                         SHARES ISSUED
                                                                                    ------------------------             ADDITIONAL
                                                                                                   CLASS B       PAR       PAID-IN
                                                                                      COMMON       COMMON       VALUE      CAPITAL
                                                                                    -----------  -----------  ---------  -----------
 
<S>                                                                                 <C>          <C>          <C>        <C>
BALANCE JUNE 1, 1994..............................................................       8,056        3,248   $     565   $  49,352
 
Shares contributed to ESOP........................................................         133       --               7         493
Shares issued under ESPP and stock option plan....................................          35       --               1         144
Conversion of Class B shares to common shares.....................................           1           (1)     --          --
Dividends.........................................................................      --           --          --          --
Currency translation..............................................................      --           --          --          --
Net income........................................................................      --           --          --          --
                                                                                         -----        -----   ---------  -----------
BALANCE MAY 31, 1995..............................................................       8,225        3,247         573      49,989
 
Shares contributed to ESOP........................................................          69       --               3         497
Shares issued under ESPP and stock option plan....................................         265       --              14       1,699
Conversion of Class B shares to common shares.....................................           3           (3)     --          --
Dividends.........................................................................      --           --          --          --
Currency translation..............................................................      --           --          --          --
Net income........................................................................      --           --          --          --
                                                                                         -----        -----   ---------  -----------
BALANCE MAY 31, 1996..............................................................       8,562        3,244         590      52,185
Shares contributed to ESOP........................................................          84       --               5         795
Shares issued under ESPP and stock option plan....................................          74       --               4         532
Conversion of Class B shares to common shares.....................................           1           (1)     --          --
Dividends.........................................................................      --           --          --          --
Currency translation..............................................................      --           --          --          --
Net loss..........................................................................      --           --          --          --
                                                                                         -----        -----   ---------  -----------
BALANCE MAY 31, 1997..............................................................       8,721        3,243         599      53,512
 
Shares contributed to ESOP........................................................          34       --               2         283
Shares issued under stock option plan.............................................         212       --              10       1,754
Conversion of Class B shares to common shares.....................................           1           (1)     --          --
Dividends.........................................................................      --           --          --          --
Currency translation..............................................................      --           --          --          --
Net income........................................................................      --           --          --          --
                                                                                         -----        -----   ---------  -----------
BALANCE FEBRUARY 28, 1998(1)......................................................       8,968        3,242   $     611   $  55,549
                                                                                         -----        -----   ---------  -----------
                                                                                         -----        -----   ---------  -----------
 
<CAPTION>
 
                                                                                     RETAINED    FOREIGN
                                                                                     EARNINGS   CURRENCY     TOTAL
                                                                                    ----------  ---------  ----------
<S>                                                                                 <C>         <C>        <C>
BALANCE JUNE 1, 1994..............................................................  $    4,912  $  (2,256) $   52,573
Shares contributed to ESOP........................................................      --         --             500
Shares issued under ESPP and stock option plan....................................      --         --             145
Conversion of Class B shares to common shares.....................................      --         --          --
Dividends.........................................................................      (1,779)    --          (1,779)
Currency translation..............................................................      --          1,707       1,707
Net income........................................................................       3,008     --           3,008
                                                                                    ----------  ---------  ----------
BALANCE MAY 31, 1995..............................................................       6,141       (549)     56,154
Shares contributed to ESOP........................................................      --         --             500
Shares issued under ESPP and stock option plan....................................      --         --           1,713
Conversion of Class B shares to common shares.....................................      --         --          --
Dividends.........................................................................      (1,822)    --          (1,822)
Currency translation..............................................................      --         (1,864)     (1,864)
Net income........................................................................       8,111     --           8,111
                                                                                    ----------  ---------  ----------
BALANCE MAY 31, 1996..............................................................      12,430     (2,413)     62,792
Shares contributed to ESOP........................................................      --         --             800
Shares issued under ESPP and stock option plan....................................      --         --             536
Conversion of Class B shares to common shares.....................................      --         --          --
Dividends.........................................................................      (1,855)    --          (1,855)
Currency translation..............................................................      --         (1,190)     (1,190)
Net loss..........................................................................      (1,493)    --          (1,493)
                                                                                    ----------  ---------  ----------
BALANCE MAY 31, 1997..............................................................       9,082     (3,603)     59,590
Shares contributed to ESOP........................................................      --         --             285
Shares issued under stock option plan.............................................      --         --           1,764
Conversion of Class B shares to common shares.....................................      --         --          --
Dividends.........................................................................      (1,416)    --          (1,416)
Currency translation..............................................................      --         (2,742)     (2,742)
Net income........................................................................       6,730     --           6,730
                                                                                    ----------  ---------  ----------
BALANCE FEBRUARY 28, 1998(1)......................................................  $   14,396  $  (6,345) $   64,211
                                                                                    ----------  ---------  ----------
                                                                                    ----------  ---------  ----------
</TABLE>
 
- ------------------------
 
(1)  ACTIVITY AFTER MAY 31, 1997 AND THE FEBRUARY 28, 1998 BALANCES ARE
    UNAUDITED.
 
                SEE NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.
 
                                      F-6
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
              (ALL INFORMATION AS OF FEBRUARY 28, 1998 AND FOR THE
           NINE MONTHS ENDED FEBRUARY 28, 1997 AND 1998 IS UNAUDITED)
 
NOTE A--SIGNIFICANT ACCOUNTING POLICIES
 
    PRINCIPLES OF CONSOLIDATION: The consolidated financial statements include
the accounts and operations of the Company and its subsidiaries. All significant
intercompany transactions are eliminated.
 
    INTERIM INFORMATION:  The consolidated interim financial statements as of
February 28, 1998 and for the nine-month periods ended February 28, 1997 and
1998 included herein are unaudited. Such information reflects all adjustments,
consisting solely of normal recurring adjustments, which in the opinion of
management are necessary for a fair presentation of the consolidated balance
sheet as of February 28, 1998 and the consolidated results of operations and
cash flows for the nine-month periods ended February 28, 1997 and 1998.
 
    USE OF ESTIMATES:  The preparation of financial statements in conformity
with generally accepted accounting principles requires the Company's management
to make estimates and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amounts of revenues and expenses
during the reporting period. Actual results could differ from those estimates.
 
    CASH EQUIVALENTS:  The Company considers short-term investments that have a
maturity of three months or less, when purchased, to be cash equivalents. The
carrying amounts reported in the balance sheet for cash and equivalents
approximate the fair market value of these assets.
 
    INVENTORIES:  Inventories are stated at the lower of cost or market.
Inventory costs determined using the last-in, first-out ("LIFO") method
represent 84.2%, 78.5% and 76.5% of total inventories at May 31, 1996, May
31,1997 and February 28, 1998, respectively. For the remaining inventories, cost
is determined on the first-in, first-out ("FIFO") method. If the FIFO method had
been used for all inventories, the cost of inventories would have been increased
by $5.7 million at May 31, 1996, $4.7 million at May 31, 1997 and $4.7 million
at February 28, 1998. However, as a result of the increase in overstock reserves
recorded in 1997, the LIFO carrying value of all inventories approximated market
value at May 31, 1997 and at February 28, 1998. Substantially all inventories
represent finished goods held for sale.
 
    PROPERTY, PLANT AND EQUIPMENT:  Property, plant and equipment are stated at
cost. Provisions for depreciation are computed principally using the
straight-line method for financial reporting purposes. Property, plant and
equipment consist of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                  MAY 31,
                                                            --------------------  FEBRUARY 28,
                                                              1996       1997         1998
                                                            ---------  ---------  ------------
<S>                                                         <C>        <C>        <C>
Land and improvements.....................................  $   2,624  $   2,620   $    2,618
Buildings and improvements................................     18,052     18,251       18,355
Machinery and equipment...................................     22,020     25,098       27,812
                                                            ---------  ---------  ------------
  Property at cost........................................     42,696     45,969       48,785
Accumulated depreciation..................................    (26,642)   (28,443)     (30,645)
                                                            ---------  ---------  ------------
Property, net.............................................  $  16,054  $  17,526   $   18,140
                                                            ---------  ---------  ------------
                                                            ---------  ---------  ------------
</TABLE>
 
                                      F-7
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE A--SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
    FOREIGN CURRENCY TRANSLATION:  Foreign currency transactions and financial
statements are translated into U. S. dollars at current rates, except that
revenues, costs and expenses are translated at average rates during each
reporting period. Gains and losses resulting from foreign currency transactions
are included in income currently. Foreign currency transaction gains (losses)
reflected in operations were $316,000, $(228,000) and $(563,000), in 1995, 1996,
and 1997, respectively, and were $(269,000) and $(318,000) for the first nine
months of fiscal 1997 and 1998. Gains and losses resulting from translation of
foreign subsidiary financial statements are credited or charged directly to a
separate component of shareholders' equity.
 
    REVENUE RECOGNITION:  Revenues are recorded upon shipment.
 
    INCOME TAXES:  Deferred tax assets and liabilities are established for
differences between financial reporting and tax accounting of assets and
liabilities and are measured using the marginal tax rates.
 
    STOCK-BASED COMPENSATION:  The Company accounts for its stock option plans
in accordance with Accounting Principles Board ("APB") Opinion No. 25,
"ACCOUNTING FOR STOCK ISSUED TO EMPLOYEES", and related interpretations. As
such, compensation expense is recorded on the date of grant only if the current
market price of the underlying stock exceeded the exercise price. On January 1,
1996, the Financial Accounting Standards Board issued Statement ("SFAS") No. 123
"ACCOUNTING FOR STOCK-BASED COMPENSATION", which requires estimation of the fair
value of options granted to employees. As permitted by SFAS No. 123, the Company
has elected to present this estimated fair value information in Note I, and to
continue to apply APB Opinion No. 25 for the determination of compensation
expense.
 
    EARNINGS PER SHARE:  Net income (loss) per share amounts and average shares
outstanding for all periods presented have been restated in accordance with SFAS
No. 128 "EARNINGS PER SHARE", which became effective December 1997. The
restatement of primary earnings per share to basic earnings per share resulted
in increases in net income per share of $.01 in 1995 and $.02 in 1996. Under
SFAS No. 128, net income per share is reported by two amounts: basic earnings
per share and diluted earnings per share. Basic earnings per share is calculated
by dividing net income (loss) by the weighted average number of Common and Class
B Common shares outstanding. Diluted earnings per share is calculated by
dividing net income (loss) by basic shares outstanding and share equivalents
that would arise from the exercise of dilutive stock options. The per share
amounts presented in the Statement of Operations were based on the following
amounts (in thousands):
 
<TABLE>
<CAPTION>
                                                           FISCAL YEAR ENDED MAY 31,      FIRST NINE MONTHS
                                                        -------------------------------  --------------------
                                                          1995       1996       1997       1997       1998
                                                        ---------  ---------  ---------  ---------  ---------
<S>                                                     <C>        <C>        <C>        <C>        <C>
NUMERATOR FOR BASIC AND DILUTED EPS:
  Net income (loss) before extraordinary item.........  $   2,481  $   8,111  $  (1,005) $  (2,828) $   6,730
  Extraordinary loss, net of income taxes.............        527     --           (488)      (488)    --
                                                        ---------  ---------  ---------  ---------  ---------
    Net income (loss).................................  $   3,008  $   8,111  $  (1,493) $  (3,316) $   6,730
                                                        ---------  ---------  ---------  ---------  ---------
                                                        ---------  ---------  ---------  ---------  ---------
DENOMINATOR FOR BASIC EPS:
  Shares outstanding at beginning of period...........     11,303     11,472     11,806     11,806     11,964
  Additonal shares for options exercised..............        122        187         86         80        132
                                                        ---------  ---------  ---------  ---------  ---------
    Weighted average shares outstanding...............     11,425     11,659     11,892     11,886     12,096
                                                        ---------  ---------  ---------  ---------  ---------
                                                        ---------  ---------  ---------  ---------  ---------
DENOMINATOR FOR DILUTED EPS:
  Weighted average shares outstanding.................     11,425     11,659     11,892     11,886     12,096
  Effect of dilutive stock options....................        141        343     --         --            380
                                                        ---------  ---------  ---------  ---------  ---------
    Adjusted average shares outstanding...............     11,566     12,002     11,892     11,886     12,476
                                                        ---------  ---------  ---------  ---------  ---------
                                                        ---------  ---------  ---------  ---------  ---------
</TABLE>
 
                                      F-8
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE A--SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
    Out-of-the money (exercise price higher than market price) stock options and
the Company's 8 1/4% and 7 1/4% convertible debentures were excluded from the
calculation because they were anti-dilutive. In-the-money stock options were
excluded from the calculation for the fiscal 1997 full year and first nine-month
period because the Company had a net loss.
 
    RECLASSIFICATIONS:  Certain amounts in the 1995 and 1996 financial
statements have been reclassified to conform to the 1997 presentation. Certain
amounts in the fiscal 1997 nine-month interim financial statements have been
reclassified to conform to the fiscal 1998 nine-month interim presentation.
 
NOTE B--SPECIAL CHARGES AND EXTRAORDINARY ITEMS
 
    In the third quarter of fiscal 1997, the Company re-evaluated its reserve
estimates in light of changed market conditions and provided for severance and
other costs associated with a corporate reorganization. Inventory reserve
adjustments of $7.2 million were included in cost of sales, and provisions for
accounts receivable, severance and other costs of $3.8 million were included in
selling, general and administrative expense. Collectively, these charges
amounted to $11.0 million pre-tax or $6.7 million, net of tax, reducing earnings
per share by $.56.
 
    Also in the third quarter of fiscal 1997, the Company recorded an $800,000
extraordinary charge for the write-off of unamortized debt issuance costs
associated with the Company's 7 1/4% convertible subordinated debentures, which
were exchanged for a new issue (See Note F). Net of tax, the charge was
$488,000, or $.04 per share.
 
    In 1995 the Company recorded as a charge to cost of sales a $4.7 million
payment to the U. S. Government in return for a release of monetary claims in
connection with a contract completed in 1989. Also during fiscal 1995, the
Company repurchased $4.9 million at face value of its 7 1/4% convertible
debentures for $4.0 million. Net of unamortized deferred financing costs of
$90,000, and income taxes of $337,000, an extraordinary gain of $527,000 was
recorded.
 
NOTE C--ACQUISITIONS
 
    Several business acquisitions were made in fiscal 1997. In October 1996, the
SSC business unit acquired Compucon Distributors, Inc., a distributor of
interconnect devices operating in the northeastern United States. In February
1997, the SSD unit acquired Burtek Systems, Inc., a security systems distributor
operating in Canada with annual sales of $18.0 million. The Company also
acquired two smaller companies operating in the wireless communications and
diagnostic medical imaging markets, respectively.
 
    In August 1997, the Company acquired the assets and liabilities of Security
Service International, Inc. (SSI), a Canadian distributor of security systems
with annual sales of $20.0 million.
 
    Each of the acquisitions was accounted for by the purchase method, and
accordingly, their results of operations are included in the consolidated
statements of operations from the respective dates of acquisition. The impact of
these acquisitions on results of operations was not significant and would not
have been significant if they had been included for the entire year.
 
                                      F-9
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE D--MARKETING AGREEMENTS
 
    The Company is party to several marketing distribution agreements with
various manufacturers in the electron tube and semiconductor businesses. The
most significant is a distribution agreement with Communications and Power
Industries, Inc., formerly the Electron Device Group of Varian Associates, Inc.
Product sales under this distribution agreement accounted for 17.2%, 14.8%, and
13.0%, of net sales in fiscal 1995, 1996, and 1997, respectively.
 
    As part of the divestiture of the Company's Brive, France, manufacturing
operations in 1994, the Company entered into a supply agreement with Covimag, S.
A., the corporation created by the local management group to continue operating
the Brive facility. Under this agreement, the Company must purchase electron
tubes valued at approximately $11.0 million per year through calendar 1997.
Under a successor agreement, the purchase commitment is negotiated on an annual
basis and requires the Company to acquire $8.3 million in calendar 1998.
 
NOTE E--INVESTMENTS
 
    SFAS No. 115, "ACCOUNTING FOR CERTAIN INVESTMENTS IN DEBT AND EQUITY
SECURITIES" requires investments to be classified as trading, available-for-sale
or held-to-maturity. Management has determined these investments are properly
classified as available-for-sale. The investment portfolio at May 31, 1996, May
31, 1997 and February 28, 1998 is stated at fair value based on quoted market
prices or dealers' quotes and consists of securities available-for-sale, as
follows (in thousands).
 
<TABLE>
<CAPTION>
                                                                                    GROSS        GROSS      ESTIMATED
                                                                                 UNREALIZED   UNREALIZED      FAIR
                                                                        COST        GAINS       LOSSES        VALUE
                                                                      ---------  -----------  -----------  -----------
<S>                                                                   <C>        <C>          <C>          <C>
At May 31, 1996:
  Equity securities.................................................  $   1,571   $     174    $     (29)   $   1,716
  Bonds--one year or less...........................................        510      --              (36)         474
                                                                      ---------       -----   -----------  -----------
    Total investments...............................................  $   2,081   $     174    $     (65)   $   2,190
                                                                      ---------       -----   -----------  -----------
                                                                      ---------       -----   -----------  -----------
At May 31, 1997:
  Equity securities.................................................  $   1,766   $     206    $    (190)   $   1,782
  Bonds--one year or less...........................................        370      --           --              370
                                                                      ---------       -----   -----------  -----------
    Total investments...............................................  $   2,136   $     206    $    (190)   $   2,152
                                                                      ---------       -----   -----------  -----------
                                                                      ---------       -----   -----------  -----------
At February 28, 1998:
  Equity securities.................................................  $   1,861   $     237    $     (47)   $   2,051
  Bonds--six to ten years...........................................        101          12       --              113
  Bonds--one year or less...........................................        612      --           --              612
                                                                      ---------       -----   -----------  -----------
    Total investments...............................................  $   2,574   $     249    $     (47)   $   2,776
                                                                      ---------       -----   -----------  -----------
                                                                      ---------       -----   -----------  -----------
</TABLE>
 
    Interest and dividend income are accrued as earned. Gains and losses on the
investment portfolio are recognized in income when securities are sold or to
reflect a decline in market value estimated by management to be of a permanent
nature. Investment income includes capital gains of $1.2 million, $1.1 million,
and $47,000 in fiscal 1995, 1996 and 1997 and $80,000 and $421,000 for the first
nine months of fiscal 1997 and 1998. Of these amounts, sales of equity
securities generated gains of $1.0 million, $1.1
 
                                      F-10
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE E--INVESTMENTS (CONTINUED)
million, $30,000 in fiscal 1995, 1996 and 1997 and $88,000 and $421,000 for the
first nine months of fiscal 1997 and 1998, respectively.
 
NOTE F--DEBT FINANCING
 
    Long-term debt consists of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                  MAY 31,
                                                           ---------------------  FEBRUARY 28,
                                                             1996        1997         1998
                                                           ---------  ----------  ------------
<S>                                                        <C>        <C>         <C>
8 1/4% Convertible debentures due June 2006..............  $  --      $   40,000   $   40,000
7 1/4% Convertible debentures due December 2006               70,825      30,825       30,825
Floating-rate revolving credit facility due January 1999
  (6.6% at May 31, 1997 and 6.9% at February 28, 1998)...     21,200      30,332       26,332
Revolving credit and term loan due January 1999
  (4.6% at May 31, 1997 and 5.4% at February 28, 1998)...     --           5,704        8,461
Other....................................................     --             414            5
                                                           ---------  ----------  ------------
  Long-term debt.........................................  $  92,025  $  107,275   $  105,623
                                                           ---------  ----------  ------------
                                                           ---------  ----------  ------------
</TABLE>
 
    On February 15, 1997, the Company exchanged $40.0 million of new 8 1/4%
convertible debentures for an equivalent face value of its outstanding 7 1/4%
convertible debentures. The new debentures are payable at maturity in June 2006,
and are convertible to common stock at $18.00 per share. The principal purpose
of the exchange was to improve the Company's future liquidity and capital
position by refinancing a sufficient number of the 7 1/4% convertible debentures
to eliminate sinking fund requirements until December 15, 2004. The 8 1/4%
convertible debentures are subordinated to senior debt.
 
    The 7 1/4% convertible debentures are unsecured and subordinated to other
long-term debt, including the 8 1/4% convertible debentures. Each $1,000
debenture is convertible into the Company's Common Stock at any time prior to
maturity at $21.14 per share. The Company is required to make sinking fund
payments of $3.9 million in 2004 and $6.2 million in 2005.
 
    In November 1995, the Company entered into a $25.0 million senior revolving
credit note agreement. Subsequent amendments increased this line to $35.0
million and extended the maturity date to January 1999. The Company has replaced
this agreement effective March 1, 1998 with a new $50.0 million floating-rate
revolving credit facility from its primary lender. The loan bears interest at
prime or 100 basis points over LIBOR, at the Company's option, and expires March
1, 2001.
 
    To complete the acquisition of Burtek, a subsidiary of the Company entered
into a revolving credit and term loan agreement aggregating $6.0 million with a
Canadian affiliate of the Company's primary bank. The loan is guaranteed by the
Company and bears interest at the Canadian prime rate. The amount of this
agreement was increased to $12.4 million in August 1997 to facilitate the
acquisition of Security Services International, Inc. and, in conjunction with
the terms of the aforementioned $50.0 million facility, the maturity date was
extended to March 1, 2001.
 
    Financial covenants under the debt agreements set benchmark levels for
tangible net worth, debt to tangible net worth ratio and annual debt service
coverage and restrict the use of retained earnings for the
 
                                      F-11
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE F--DEBT FINANCING (CONTINUED)
payment of dividends or purchase of treasury stock. As of May 31, 1997 and March
1, 1998, $18.3 million and $10.0 million, respectively, were free of such
restrictions.
 
    Aggregate maturities of debt under currently effective agreements during the
next five fiscal years at May 31, 1997 were $36.5 million in 1999 and at
February 28, 1998 were $34.8 million in 2001. Cash payments for interest were
$6.5 million, $6.4 million, and $7.5 million in 1995, 1996, and 1997,
respectively, and $6.5 million and $7.5 million for the first nine months of
fiscal 1997 and 1998.
 
    In the following table, the fair values of the Company's 7 1/4% and 8 1/4%
convertible debentures are based on quoted market prices. However, trading in
the Company's bonds is infrequent and, therefore, quoted market prices may not
be indicative of the fair market value of the entire issue. The fair values of
the bank term loans are based on carrying value, adjusted for market interest
rate changes and are as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                   MAY 31, 1996          MAY 31, 1997         FEBRUARY 28, 1998
                                               --------------------  ---------------------  ---------------------
                                               CARRYING     FAIR      CARRYING     FAIR      CARRYING     FAIR
                                                 VALUE      VALUE      VALUE       VALUE      VALUE       VALUE
                                               ---------  ---------  ----------  ---------  ----------  ---------
<S>                                            <C>        <C>        <C>         <C>        <C>         <C>
7 3/4% Convertible debentures                  $  70,825  $  59,847  $   30,825  $  24,044  $   30,825  $  25,585
8 1/4% Convertible debentures                     --         --          40,000     31,800      40,000     37,200
Floating-rate revolving loan.................     21,200     21,200      30,332     30,330      26,332     26,332
Revolving credit and term loan...............     --         --           5,704      5,704       8,461      8,461
Other........................................     --         --             414        414           5          5
                                               ---------  ---------  ----------  ---------  ----------  ---------
    Total....................................  $  92,025  $  81,047  $  107,275  $  92,292  $  105,623  $  97,583
                                               ---------  ---------  ----------  ---------  ----------  ---------
                                               ---------  ---------  ----------  ---------  ----------  ---------
</TABLE>
 
NOTE G--INCOME TAXES
 
    The components of income (loss) before income taxes and extraordinary item
are (in thousands):
 
<TABLE>
<CAPTION>
                                                           FISCAL YEAR ENDED MAY 31,      FIRST NINE MONTHS
                                                        -------------------------------  --------------------
                                                          1995       1996       1997       1997       1998
                                                        ---------  ---------  ---------  ---------  ---------
<S>                                                     <C>        <C>        <C>        <C>        <C>
United States.........................................  $     781  $   9,954  $  (4,558) $  (7,119) $   7,530
Foreign...............................................      1,850      2,057      1,833      1,791      2,080
                                                        ---------  ---------  ---------  ---------  ---------
Income (loss) before taxes and extraordinary item.....  $   2,631  $  12,011  $  (2,725) $  (5,328) $   9,610
                                                        ---------  ---------  ---------  ---------  ---------
                                                        ---------  ---------  ---------  ---------  ---------
</TABLE>
 
                                      F-12
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE G--INCOME TAXES (CONTINUED)
    The provision (credit) for income taxes differs from income taxes computed
at the federal statutory tax rate of 34% as a result of the following items:
 
<TABLE>
<CAPTION>
                                                                                  FISCAL YEAR ENDED          FIRST NINE MONTHS
                                                                                       MAY 31,
                                                                           -------------------------------  --------------------
                                                                             1995       1996       1997       1997       1998
                                                                           ---------  ---------  ---------  ---------  ---------
<S>                                                                        <C>        <C>        <C>        <C>        <C>
Federal statutory rate...................................................       34.0%      34.0%      34.0%      34.0%      34.0%
Effect of:
  State income taxes, net of federal tax benefit.........................       (1.4)       3.5       11.3       11.0        2.5
  FSC benefit on export sales............................................      (10.4)      (3.2)      12.3        7.6       (6.6)
  Realization of tax benefit on
    prior years' foreign losses..........................................     --           (2.5)      14.7        1.6       (0.6)
  Foreign vs. U.S. rates.................................................        6.8     --           (7.5)      (2.9)       0.7
  Claim settlement taxed at 46%
    carry back year statutory rate.......................................      (22.8)    --         --         --         --
  Other..................................................................       (0.5)       0.7       (1.7)      (4.3)    --
                                                                           ---------  ---------  ---------  ---------  ---------
Effective tax rate.......................................................        5.7%      32.5%      63.1%      47.0%      30.0%
                                                                           ---------  ---------  ---------  ---------  ---------
                                                                           ---------  ---------  ---------  ---------  ---------
</TABLE>
 
    In 1994, the Company recorded a provision of $21.4 million for the
disposition of its Brive, France manufacturing facility. Tax benefits of $8.0
million will be realized if the disposition of these French operations is
treated as an ordinary loss for U. S. federal tax purposes. A tax benefit of
$5.0 million was recorded in 1994 based upon alternative tax strategies. The
Company's U. S. federal tax return has been examined for 1994 and submitted to
the Congressional Joint Committee on Taxation recommending no change to the
Company's ordinary loss position on this issue.
 
    In 1995, due to the timing and nature of a claim settlement (see Note B),
the Company utilized a ten-year carryback provision permitted by the Internal
Revenue Service. The Company's U. S. federal tax returns have been examined
through 1995. As part of this examination, in December, 1997, the Internal
Revenue Service contested the Company's carryback of the aforementioned claim
settlement. The Company is appealing the IRS position. However, if the Company
were ultimately unsuccessful, the claim would be available for carryforward at
the then current statutory rate and the impact on the Company's financial
position and results of operations would not be material.
 
                                      F-13
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE G--INCOME TAXES (CONTINUED)
    The provisions (credits) for income taxes before extraordinary item consist
of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                   FISCAL YEAR ENDED MAY 31,      FIRST NINE MONTHS
                                                                -------------------------------  --------------------
                                                                  1995       1996       1997       1997       1998
                                                                ---------  ---------  ---------  ---------  ---------
<S>                                                             <C>        <C>        <C>        <C>        <C>
Currently payable:
  Federal.....................................................  $  (1,930) $   1,158  $     299  $    (362) $     298
  State.......................................................       (150)       139     --            (65)       100
  Foreign.....................................................      1,250        274        609        (93)       974
                                                                ---------  ---------  ---------  ---------  ---------
    Total currently payable...................................       (830)     1,571        908       (520)     1,372
                                                                ---------  ---------  ---------  ---------  ---------
Deferred:
  Federal.....................................................      1,386      1,806     (2,626)    (2,541)     1,621
  State.......................................................         93        498       (441)      (420)       238
  Foreign.....................................................       (499)        25        439        981       (351)
                                                                ---------  ---------  ---------  ---------  ---------
    Total deferred............................................        980      2,329     (2,628)    (1,980)     1,508
                                                                ---------  ---------  ---------  ---------  ---------
Income tax provision (benefit) before extraordinary item......  $     150  $   3,900  $  (1,720) $  (2,500) $   2,880
                                                                ---------  ---------  ---------  ---------  ---------
                                                                ---------  ---------  ---------  ---------  ---------
</TABLE>
 
    Deferred income taxes reflect the net tax effects of temporary differences
between the carrying amounts of assets and liabilities for financial reporting
purposes and the amounts used for income tax purposes. Non-current deferred tax
assets and liabilities are offset on the balance sheet within tax jurisdictions.
Significant components of the Company's deferred tax assets and liabilities are
as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                    AT MAY 31, 1996           AT MAY 31, 1997         AT FEBRUARY 28, 1998
                                                ------------------------  ------------------------  ------------------------
                                                  CURRENT    NONCURRENT     CURRENT    NONCURRENT     CURRENT    NONCURRENT
                                                 ASSET(1)     LIABILITY    ASSET(1)     LIABILITY    ASSET(1)     LIABILITY
                                                -----------  -----------  -----------  -----------  -----------  -----------
<S>                                             <C>          <C>          <C>          <C>          <C>          <C>
Deferred tax assets:
  Operating loss carryforward.................   $  --        $   1,440    $  --        $   1,778    $  --        $     868
  Intercompany profit in inventory............       1,611       --            1,422       --            1,343       --
  Inventory valuation.........................       3,462       --            6,312       --            5,971       --
  Environmental and other reserves............      --              600       --            1,368       --            1,188
  Other, net..................................          17          271           14       --               14       --
                                                -----------  -----------  -----------  -----------  -----------  -----------
    Net deferred tax assets...................       5,090        2,311        7,748        3,146        7,328        2,056
Deferred tax liabilities:
  Accelerated depreciation....................      --           (3,398)      --           (3,516)      --           (3,514)
  Other, net..................................      --           --           --              (64)      --             (142)
                                                -----------  -----------  -----------  -----------  -----------  -----------
    Net deferred tax..........................   $   5,090    $  (1,087)   $   7,748    $    (434)   $   7,328    $  (1,600)
                                                -----------  -----------  -----------  -----------  -----------  -----------
                                                -----------  -----------  -----------  -----------  -----------  -----------
</TABLE>
 
- ------------------------
 
(1)  INCLUDED IN OTHER CURRENT ASSETS ON THE BALANCE SHEET
 
                                      F-14
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE G--INCOME TAXES (CONTINUED)
    Operating loss carryforwards of $14.5 million for U. S. tax purposes expire
in 2009 and 2010. Net income taxes paid (refunds received) were $(361,000),
$(1.1 million) and $523,000 in 1995, 1996, and 1997, respectively, and $29,000
and $341,000 for the first nine months of fiscal 1997 and 1998.
 
NOTE H--ACCRUED LIABILITIES
 
    Accrued liabilities consist of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                               MAY 31,
                                                      --------------------------  FEBRUARY 28,
                                                          1996          1997          1998
                                                      ------------  ------------  ------------
<S>                                                   <C>           <C>           <C>
Compensation and payroll taxes......................   $    3,558    $    4,320    $    4,944
Interest............................................        2,690         2,849         1,589
Income taxes........................................          314           712           742
Other accrued expenses..............................        3,189         4,568         2,908
                                                      ------------  ------------  ------------
  Accrued liabilities...............................   $    9,751    $   12,449    $   10,183
                                                      ------------  ------------  ------------
                                                      ------------  ------------  ------------
</TABLE>
 
NOTE I--STOCKHOLDERS' EQUITY
 
    The Company has authorized 30,000,000 shares of Common Stock, 10,000,000
shares of Class B Common Stock, and 5,000,000 shares of Preferred Stock. The
Class B Common Stock has ten votes per share and generally votes together with
the Common Stock. The Class B Common Stock has transferability restrictions;
however, it may be converted into Common Stock on a share-for-share basis at any
time. With respect to dividends and distributions, shares of common stock and
Class B common stock rank equally and have the same rights, except that Class B
Common Stock is limited to 90% of the amount of Common Stock cash dividends.
 
    Total common stock issued and outstanding was 8,721,315 shares at May 31,
1997 and 8,967,891 shares At February 28, 1998. An additional 9,387,743 shares
of common stock at May 31, 1997 and 9,144,170 shares at February 28, 1998 have
been reserved for future issuance under the Employee Stock Purchase and Option
Plans and potential conversion of the convertible debentures and Class B Common
Stock.
 
    The Employee Stock Purchase Plan ("ESPP") provides substantially all
employees an opportunity to purchase common stock of the Company at 85% of the
stock price at the beginning of the year or the end of the year, whichever is
lower. The plan has reserved 120,687 shares for future issuance.
 
    The Employees' 1996 Incentive Compensation Plan authorizes the issuance of
up to 800,000 shares as incentive stock options, non-qualified stock options or
stock awards. Under this plan and predecessor plans, 1,939,005 shares at May 31,
1997 and 1,696,879 shares at February 28, 1998 were reserved for future
issuance. The Plan authorizes the granting of incentive stock options at the
fair market value at the date of grant. Generally, these options become
exercisable over staggered periods and expire up to ten years from the date of
grant.
 
    Under the 1996 Stock Option Plan for Non-Employee Directors and a
predecessor plan, 400,000 shares at May 31, 1997 and at February 28, 1998 have
been reserved for future issuance relating to stock options exercisable based on
the passage of time. Each option is exercisable over a period from its date of
grant at the market value on the grant date and expires after ten years.
 
                                      F-15
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE I--STOCKHOLDERS' EQUITY (CONTINUED)
    The Company applies APB Opinion No. 25 and related interpretations in
accounting for its option plans. Accordingly, no compensation expense has been
recognized for the Company's option plans in the accompanying Consolidated
Statement of Operations. Applying SFAS No. 123 requires the calculation of the
fair value of options at the date of grant using certain assumptions. The fair
value of options granted was $2.81, $3.17 and $3.59 in 1996, 1997 and 1998,
respectively. In addition, the option value of shares offered under the ESPP was
$1.14, $1.50 and $1.19 in 1996, 1997 and 1998, respectively. The fair value of
each option grant is estimated on the date of grant using the Black-Scholes
option-pricing model with the following assumptions used for grants: $.16 annual
dividend rate, expected annual standard deviation of stock price of 40%, risk
free interest rate of 5.6%, 5.2% and 5.5% in 1996, 1997 and 1998, respectively,
and weighted average expected life of 6.0, 6.0 and 6.6 years, in 1996, 1997 and
1998, respectively. Had compensation cost for the Company's option plans and
stock purchase plan been determined consistent with SFAS No. 123, the Company's
net income (loss) and net income (loss) per share on a diluted basis would have
been as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                                AS REPORTED                PRO FORMA
                                                                          ------------------------  ------------------------
                                                                          NET INCOME       PER      NET INCOME       PER
                                                                            (LOSS)        SHARE       (LOSS)        SHARE
                                                                          -----------  -----------  -----------  -----------
<S>                                                                       <C>          <C>          <C>          <C>
Fiscal 1996.............................................................   $   8,111    $     .68    $   7,977    $     .66
Fiscal 1997.............................................................      (1,493)        (.12)      (1,800)        (.15)
Fiscal 1997 first nine months...........................................      (3,316)        (.28)      (3,557)        (.30)
Fiscal 1998 first nine months...........................................       6,730          .54        6,353          .51
</TABLE>
 
    The effect of applying SFAS No. 123 in this pro forma disclosure is not
indicative of the effects on future years, because SFAS No. 123 does not apply
to grants issued prior to fiscal 1996.
 
                                      F-16
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE I--STOCKHOLDERS' EQUITY (CONTINUED)
    A summary of the share activity and weighted average exercise prices for the
Company's option plans is as follows:
 
<TABLE>
<CAPTION>
                                                                             OUTSTANDING            EXERCISABLE
                                                                        ---------------------  ---------------------
                                                                          SHARES      PRICE      SHARES      PRICE
                                                                        ----------  ---------  ----------  ---------
<S>                                                                     <C>         <C>        <C>         <C>
At June 1, 1994.......................................................   1,104,111  $    8.00     544,137  $    8.44
Granted...............................................................     296,100       4.02
Exercised.............................................................      (9,000)      3.88
Cancelled.............................................................     (57,918)     11.45
                                                                        ----------
At May 31, 1995.......................................................   1,333,293       6.99   1,055,499       7.02
Granted...............................................................     263,450       7.40
Exercised.............................................................    (245,141)      5.71
Cancelled.............................................................     (99,758)      9.91
                                                                        ----------
At May 31, 1996.......................................................   1,251,844       7.10     855,404       7.16
Granted...............................................................     285,800       8.00
Exercised.............................................................     (33,030)      4.82
Cancelled.............................................................     (15,812)      7.72
                                                                        ----------
At May 31, 1997.......................................................   1,488,802       7.31     936,112       7.21
Granted...............................................................     251,300       8.50
Exercised.............................................................    (204,844)      6.40
Cancelled.............................................................     (98,559)      7.26
                                                                        ----------
At February 28, 1998..................................................   1,436,699       7.62     787,159       7.44
                                                                        ----------
                                                                        ----------
</TABLE>
 
    The following table summarizes information about stock options outstanding
as of May 31, 1997 and February 28, 1998:
 
<TABLE>
<CAPTION>
                                                                    OUTSTANDING                        EXERCISABLE
                                                         ----------------------------------  -------------------------------
EXERCISE PRICE RANGE                                        SHARES       PRICE      LIFE      SHARES      PRICE      LIFE
- -------------------------------------------------------  ------------  ---------  ---------  ---------  ---------  ---------
<S>                                                      <C>           <C>        <C>        <C>        <C>        <C>
AT MAY 31, 1997:
  $3.75 to $5.25.......................................       181,826  $    4.16        7.1    135,826  $    4.03        7.1
  $6.00 to $7.50.......................................       563,360       6.66        6.5    371,080       6.41        5.7
  $8.00 to $8.125......................................       650,053       8.02        6.8    351,643       8.04        4.8
  $10.813 to $12.95....................................        93,563      12.45        5.6     77,563      12.79        4.9
                                                         ------------                        ---------
    Total..............................................     1,488,802       7.31        6.7    936,112       7.21        5.5
                                                         ------------                        ---------
                                                         ------------                        ---------
AT FEBRUARY 28, 1998:
  $3.75 to $5.25.......................................       142,877  $    4.27        6.5    108,877  $    4.16        6.5
  $6.00 to $7.50.......................................       468,970       6.80        6.4    299,370       6.64        5.4
  $8.00 to $8.50.......................................       731,289       8.18        7.3    301,349       8.03        5.2
  $10.813 to $12.95....................................        93,563      12.45        5.1     77,563      12.79        4.5
                                                         ------------                        ---------
    Total..............................................     1,436,699       7.62        6.7    787,159       7.44        5.4
                                                         ------------                        ---------
                                                         ------------                        ---------
</TABLE>
 
                                      F-17
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE J--EMPLOYEE RETIREMENT PLANS
 
    The Company's domestic employee retirement plans consist of a profit sharing
plan and a stock ownership plan ("ESOP"). Annual contributions in cash or
Company stock are made at the discretion of
the Board of Directors. In addition, the profit sharing plan has a 401(k)
provision whereby the Company matches 50% of employee contributions up to 4% of
base pay. Charges to expense for discretionary and matching contributions to
these plans were $745,000, $1.1 million and $992,000 in 1995, 1996 and 1997,
respectively and were $953,000 and $1,050,000 for the first nine months of
fiscal 1997 and 1998. Stock contributions to the ESOP were $500,000, $500,000
and $800,000 in 1995, 1996 and 1997, respectively, based on the stock price at
the date contributed. Shares are included in the calculation of earnings per
share, and dividends are paid to the ESOP from the date the shares are
contributed. Foreign employees are covered by a variety of primarily government
mandated programs.
 
NOTE K--INDUSTRY AND MARKET INFORMATION
 
    The Company operates in one industry as a distributor of electronic
components, including vacuum tubes, semiconductors and other products. The
Company invoices its customers and ships from two primary geographic locations:
North America (which services the U. S., Canada, Latin America, and the Far
East) and Europe (in thousands).
 
<TABLE>
<CAPTION>
                                                           FISCAL YEAR ENDED MAY 31,         FIRST NINE MONTHS
                                                       ----------------------------------  ----------------------
                                                          1995        1996        1997        1997        1998
                                                       ----------  ----------  ----------  ----------  ----------
<S>                                                    <C>         <C>         <C>         <C>         <C>
SALES:
  North America......................................  $  186,103  $  211,912  $  223,277  $  159,619  $  195,017
  Less intersegment transfers........................      15,316      21,778      18,728      12,485      15,102
                                                       ----------  ----------  ----------  ----------  ----------
    To unaffiliated customers........................     170,787     190,134     204,549     147,134     179,915
                                                       ----------  ----------  ----------  ----------  ----------
  Europe.............................................      49,244      51,987      54,946      40,025      47,563
  Less intersegment transfers........................      11,913       2,454       4,356       3,285       4,036
                                                       ----------  ----------  ----------  ----------  ----------
    To unaffiliated customers........................      37,331      49,533      50,590      36,740      43,527
                                                       ----------  ----------  ----------  ----------  ----------
      Consolidated...................................  $  208,118  $  239,667  $  255,139  $  183,874  $  223,442
                                                       ----------  ----------  ----------  ----------  ----------
                                                       ----------  ----------  ----------  ----------  ----------
OPERATING INCOME:
  North America......................................  $    6,187  $   13,040  $    1,999  $   (2,809) $   11,124
  Europe.............................................       1,984       6,263       4,949       4,171       5,328
  Corporate expenses.................................      (1,512)     (1,733)     (1,817)     (1,178)     (1,131)
                                                       ----------  ----------  ----------  ----------  ----------
    Consolidated.....................................  $    6,659  $   17,570  $    5,131  $      184  $   15,321
                                                       ----------  ----------  ----------  ----------  ----------
                                                       ----------  ----------  ----------  ----------  ----------
IDENTIFIABLE ASSETS:
  North America......................................  $  142,031  $  143,536  $  148,026  $  155,898  $  157,647
  Europe.............................................      21,653      32,794      34,905      33,449      37,330
  Corporate assets...................................       9,830       3,828       9,583       6,915       4,677
                                                       ----------  ----------  ----------  ----------  ----------
    Consolidated.....................................  $  173,514  $  180,158  $  192,514  $  196,262  $  199,654
                                                       ----------  ----------  ----------  ----------  ----------
                                                       ----------  ----------  ----------  ----------  ----------
</TABLE>
 
    Intersegment transfers originate mainly from the United States or Europe and
are accounted for on an "arm's length" basis with profits eliminated in
consolidation. Export sales shipped directly from the
 
                                      F-18
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE K--INDUSTRY AND MARKET INFORMATION (CONTINUED)
United States were $38.7 million, $37.9 million and $36.3 million in 1995, 1996,
and 1997, respectively, and $27.4 million and $29.3 million for the first nine
months of fiscal 1997 and 1998.
 
    Operating income was reduced by $11.0 million in North America in the third
quarter of fiscal 1997 for valuation reserve adjustments, severance and other
costs and by $4.7 million in North America in 1995 for the payment of a claim
settlement, as described in Note B. Corporate assets consist primarily of cash
and investments.
 
    The Company sells its products to companies in diversified industries and
performs periodic credit evaluations of its customers' financial condition.
Terms are generally on open account, payable net 30 days in North America and
Latin America, and vary throughout Europe and the Far East. Estimates of credit
losses are recorded in the financial statements based on periodic reviews of
outstanding accounts and actual losses have been consistently within
management's estimates.
 
    Sales by product line and by geographic destination are summarized in
Management's Discussion and Analysis.
 
NOTE L--LITIGATION
 
    On June 19, 1990, the Company was served with a complaint in PANACHE
BROADCASTING OF PENNSYLVANIA, INC. V. RICHARDSON ELECTRONICS, LTD.; VARIAN
ASSOCIATES, INC.; AND VARIAN SUPPLY COMPANY (VASCO--A JOINT VENTURE BETWEEN THE
COMPANY AND VARIAN ASSOCIATES, INC.), in U. S. District Court for the Eastern
Division of Pennsylvania alleging violations of Sections 1 and 2 of the Sherman
Act and Section 7 of the Clayton Act. This action purports to be a class action
on behalf of all persons and businesses in the U. S. "who purchased electron
power tubes from one or more of the defendant corporations at any time" since
the formation of VASCO. The suit seeks treble damages alleged to be in excess of
$100,000, injunctive relief, and attorneys' fees. The litigation has been
transferred to the U. S. District Court for the Northern District of Illinois,
Eastern Division as cause No. 90C6400, and is in the discovery stage. The Court
has not determined whether the action may be maintained on behalf of a class.
The Company is defending itself against this action. It is not possible at this
time to predict the outcome of this legal action.
 
NOTE M--SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)
 
    Summarized quarterly financial data for 1996, 1997 and the first nine months
of fiscal 1998 follow. There were no material fourth quarter adjustments in 1997
or 1996. Third quarter 1997 results include valuation reserve adjustments and
severance and other costs which reduced gross margin by $7.2 million
 
                                      F-19
<PAGE>
                 RICHARDSON ELECTRONICS, LTD. AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
NOTE M--SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) (CONTINUED)
and net income by $6.7 million, or $.56 per share, as described in Note B (in
thousands, except per share amounts).
 
<TABLE>
<CAPTION>
                                                            FIRST     SECOND      THIRD      FOURTH      TOTALS
                                                          ---------  ---------  ---------  ----------  ----------
<S>                                                       <C>        <C>        <C>        <C>         <C>
FISCAL 1996:
  Net sales.............................................  $  57,201  $  61,669  $  56,367  $   64,430  $  239,667
  Gross margin..........................................     17,138     17,934     16,816      18,656      70,544
  Net income............................................      1,730      2,240      1,821       2,320       8,111
  Net income per share--diluted.........................  $     .15  $     .19  $     .15  $      .19  $      .68
FISCAL 1997:
  Net sales.............................................  $  57,544  $  62,167  $  64,163  $   71,265  $  255,139
  Gross margin..........................................     16,783     18,738     11,171      20,772      67,464
  Net income (loss) before extraordinary item...........      1,293      1,932     (6,053)      1,823      (1,005)
  Extraordinary loss, net of tax........................     --         --           (488)     --            (488)
  Net income (loss).....................................      1,293      1,932     (6,541)      1,823      (1,493)
  Net income (loss) per share before extraordinary
    item--diluted.......................................  $     .11  $     .16  $    (.51) $      .15  $     (.08)
  Net income (loss) per share--diluted..................  $     .11  $     .16  $    (.55) $      .15  $     (.12)
FISCAL 1998:
  Net sales.............................................  $  71,600  $  78,646  $  73,196              $  223,442
  Gross margin..........................................     20,638     22,348     20,860                  63,846
  Net income............................................      1,808      2,740      2,182                   6,730
  Net income per share--diluted.........................  $     .15  $     .22  $     .17              $      .54
</TABLE>
 
    The 1996, 1997 and first two quarters of 1998 have been restated to comply
with SFAS No. 128.
 
                                      F-20
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
    NO DEALER, SALESPERSON OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATION IN CONNECTION WITH THIS OFFERING OTHER
THAN THOSE CONTAINED IN THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION
OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE
COMPANY, THE SELLING STOCKHOLDER, OR ANY UNDERWRITER. THIS PROSPECTUS DOES NOT
CONSTITUTE AN OFFER TO SELL OR A SOLICITATION OF AN OFFER TO BUY ANY SECURITY
OTHER THAN THE SHARES OF COMMON STOCK OFFERED BY THIS PROSPECTUS, NOR DOES IT
CONSTITUTE AN OFFER TO SELL OR A SOLICITATION OF ANY OFFER TO BUY THE SHARES OF
COMMON STOCK BY ANYONE IN ANY JURISDICTION IN WHICH SUCH OFFER OR SOLICITATION
IS NOT AUTHORIZED OR IN WHICH THE PERSON MAKING SUCH OFFER OR SOLICITATION IS
NOT QUALIFIED TO DO SO, OR TO ANY PERSON TO WHOM IT IS UNLAWFUL TO MAKE SUCH
OFFER OR SOLICITATION. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE
HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THERE HAS
BEEN NO CHANGE IN THE AFFAIRS OF THE COMPANY SINCE THE DATE HEREOF OR THAT THE
INFORMATION CONTAINED HEREIN IS CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATE
HEREOF.
 
                              -------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Prospectus Summary........................................................    3
Risk Factors..............................................................    8
Use of Proceeds...........................................................   12
Capitalization............................................................   13
Price Range of Common Stock...............................................   14
Dividend Policy...........................................................   14
Selected Consolidated Financial Data......................................   15
Management's Discussion and Analysis of Financial Condition and Results of
  Operations..............................................................   17
Business..................................................................   25
Management................................................................   33
Principal and Selling Stockholders........................................   36
Description of Capital Stock and Debentures...............................   39
Underwriting..............................................................   41
Legal Matters.............................................................   42
Experts...................................................................   42
Available Information.....................................................   42
Incorporation of Certain Documents by Reference...........................   43
Index to Consolidated Financial Statements................................  F-1
</TABLE>
 
                                3,000,000 SHARES
 
                                     [LOGO]
 
                                  COMMON STOCK
 
                               -----------------
 
                              P R O S P E C T U S
 
                               -----------------
 
                                  CLEARY GULL
                            REILAND & MCDEVITT INC.
 
                               MCDONALD & COMPANY
                                SECURITIES, INC.
 
                                         , 1998
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
 
<TABLE>
<CAPTION>
                                                                                     TOTAL
                                                                                    EXPENSE
                                                                                 -------------
<S>                                                                              <C>
Securities and Exchange Commission Registration Fee............................  $   13,612.41
NASD Fees......................................................................      22,614.38
Accounting Fees and Expenses(1)................................................      50,000.00
Legal Fees and Expenses(1).....................................................      80,000.00
Printing(1)....................................................................      90,000.00
Miscellaneous(1)...............................................................     143,773.21
                                                                                 -------------
      Total....................................................................  $  400,000.00
                                                                                 -------------
                                                                                 -------------
</TABLE>
 
- ------------------------
 
(1)  Estimated
 
ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
    Provisions relating to indemnification of officers and directors of the
Registrant are found in Articles Sixth and Seventh of its Certificate of
Incorporation, in Article VII of its by-laws and in Section 145 of the General
Corporation Law of the State of Delaware.
 
    Section 145 of the General Corporation Law of the State of Delaware provides
as follows:
 
    Section 145. Indemnification of officers, directors, employees and agents;
insurance
 
    (a) A corporation shall have the power to indemnify any person who was or is
a party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding, whether civil, criminal, administrative or
investigative (other than an action by or in the right of the corporation) by
reason of the fact that the person is or was a director, officer, employee or
agent of the corporation, or is or was serving at the request of the corporation
as a director, officer, employee or agent of another corporation, partnership,
joint venture, trust or other enterprise, against expenses (including attorneys'
fees), judgments, fines and amounts paid in settlement actually and reasonably
incurred by him in connection with such action, suit or proceeding if the person
acted in good faith and in a manner the person reasonably believed to be in or
not opposed to the best interests of the corporation, and, with respect to any
criminal action or proceeding, had no reasonable cause to believe the person's
conduct was unlawful. The termination of any action, suit or proceeding by
judgment, order, settlement, conviction, or upon a plea of nolo contendere or
its equivalent, shall not, of itself, create a presumption that the person did
not actin good faith and in a manner which the person reasonably believes to be
in or not opposed to the best interests of the corporation, and, with respect to
any criminal action or proceeding, had reasonable cause to believe that his
conduct was unlawful.
 
    (b) A corporation shall have power to indemnify any person who was or is a
party or is threatened to be made a party to any threatened, pending or
completed action or suit by or in the right of the corporation to procure a
judgment in its favor by reason of the fact that the person is or was a
director, officer, employee or agent of the corporation, or is or was serving at
the request of the corporation as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or other enterprise
against expenses (including attorneys' fees) actually and reasonably incurred by
the person in connection with the defense or settlement of such action or suit
if the person acted in good faith and in a manner the person reasonably believed
to be in or not opposed to the best interests of the corporation and except that
no indemnification shall be made in respect of any claim, issue or matter as to
which such
 
                                      S-1
<PAGE>
person shall have been adjudged to be liable to the corporation unless and only
to the extent that the Court of Chancery or the court in which such action or
suit was brought shall determine upon application that, despite the adjudication
of liability but in view of all the circumstances of the case, such person is
fairly and reasonably entitled to indemnity for such expenses which the Court of
Chancery or such other court shall deem proper.
 
    (c) To the extent that a present or former director or officer of a
corporation has been successful on the merits or otherwise in defense of any
action, suit or proceeding referred to in subsections (a) and (b), or in defense
of any claim, issue or matter therein, the person shall be indemnified against
expenses (including attorneys' fees) actually and reasonably incurred by such
person in connection therewith.
 
    (d) Any indemnification under subsections (a) and (b) (unless ordered by a
court) shall be made by the corporation only as authorized in the specific case
upon a determination that indemnification of the present or former director,
officer, employee or agent is proper in the circumstances because the person has
met the applicable standard of conduct set forth in subsections (a) and (b) of
this section. Such determination shall be made with respect to a person who is a
director or officer at the time of such determination, (1) by a majority vote of
the directors who are not parties to such action, suit or proceeding, even
though less than a quorum, or (2) by a committee of such directors designated by
majority vote of such directors even though less than a quorum, or (3) if there
are no such directors or if such directors so direct, by independent legal
counsel in a written opinion, or (4) by the stockholders.
 
    (e) Expenses (including attorneys' fees) incurred by an officer or director
in defending any civil, criminal, administrative or investigative action, suit
or proceeding may be paid by the corporation in advance of the final disposition
of such action, suit or proceeding upon receipt of an undertaking by or on
behalf of such director or officer to repay such amount if it shall ultimately
be determined that such person is not entitled to be indemnified by the
corporation as authorized in this section. Such expenses (including attorneys'
fees) incurred by former directors and officers or other employees and agents
may be so paid upon such terms and conditions, if any, as the corporation deems
appropriate.
 
    (f) The indemnification and advancement of expenses provided by or granted
pursuant to, the other subsections of this section shall not be deemed exclusive
of any other rights to which those seeking indemnification or advancement of
expenses may be entitled under any by-law, agreement, vote of stockholders or
disinterested directors or otherwise, both as to action in such person's
official capacity and as to action in another capacity while holding such
office.
 
    (g) A corporation shall have power to purchase and maintain insurance on
behalf of any person who is or was a director, officer, employee or agent of the
corporation, or is or was serving at the request of the corporation as a
director, officer, employee or agent of another corporation, partnership, joint
venture, trust or other enterprise against any liability asserted against such
person and incurred by such person in any such capacity, or arising out of such
person's status as such, whether or not the corporation would have the power to
indemnify such person against such liability under this section.
 
    (h) For purposes of this section, references to "the corporation" shall
include, in addition to the resulting corporation, any constituent corporation
(including any constituent of a constituent) absorbed in a consolidation or
merger which, if its separate existence had continued, would have had power and
authority to indemnify its directors, officers, and employees or agents, so that
any person who is or was a director, officer, employee or agent of such
constituent corporation, or is or was serving at the request of such constituent
corporation as a director, officer, employee or agent of another corporation,
partnership, joint venture, trust or other enterprise, shall stand in the same
position under this section with respect to the resulting or surviving
corporation as such person would have with respect to such constituent
corporation if its separate existence had continued.
 
    (i) For purpose of this section, references to "other enterprise" shall
include employee benefit plans; references to "fines" shall include any excise
taxes assessed on a person with respect to an employee
 
                                      S-2
<PAGE>
benefit plan; and references to "serving at the request of the corporation"
shall include any service as a director, officer, employee or agent of the
corporation which imposes duties on, or involves services by, such director,
officer, employee, or agent with respect to an employee benefit plan, its
participants or beneficiaries and a person who acted in good faith and in a
manner such person reasonably believed to be in the interest of the participants
and beneficiaries of an employee benefit plan shall be deemed to have acted in a
manner "not opposed to the best interest of the corporation" as referred to in
this section.
 
    (j) The indemnification and advancement of expenses provided by, or granted
pursuant to, this section shall, unless otherwise provided when authorized or
ratified, continue as to a person who has ceased to be a director, officer,
employee or agent and shall inure to the benefit of the heirs, executors and
administrators of such a person.
 
    (k) The Court of Chancery is hereby vested with exclusive jurisdiction to
hear and determine all actions for advancement of expenses or indemnification
brought under this section or under any by-law, agreement, vote of stockholders
or disinterested directors, or otherwise. The Court of Chancery may summarily
determine a corporation's obligation to advance expenses (including attorneys'
fees).
 
Articles Sixth and Seventh of Registrant's Certificate of Incorporation provides
as follow:
 
    SIXTH: The Corporation shall, to the full extent permitted by Section 145 of
the General Corporation Law of Delaware, as amended from time to time,
indemnify, advance payment of expenses on behalf of and purchase and maintain
insurance against liability on behalf of all persons for whom it may take each
such respective action pursuant to such Section.
 
    SEVENTH: No Director of the Corporation shall be liable to the Corporation
or its stockholders for monetary damages for breach of fiduciary duty as a
Director, except for liability (i) for any breach of the Director's duty of
loyalty to the Corporation or its stockholders, (ii) for acts or omissions not
in good faith or which involve intentional misconduct or a knowing violation of
law, (iii) under Section 174 of the General Corporation Law of Delaware, or (iv)
for any transaction from which the Director derived an improper personal
benefit. No amendment to or repeal of this Article SEVENTH shall apply to or
have any effect on the liability or alleged liability of any Director of the
Corporation for or with respect to any acts or omissions of such Director
occurring prior to such amendment.
 
    Article VII of the Registrant's By-laws contains additional provisions
regarding indemnification.
 
    The Company maintains a liability insurance policy for its directors and
officers and for the Company providing coverage of claims in excess of certain
minimum retained limits at an annual expense of approximately $255,000.
 
    The Underwriting Agreement contains certain provisions for the
indemnification by the Underwriters of the Company, the Selling Stockholder and
the Company's directors and officers who signed the Registration Statement
against civil liabilities under the Securities Act.
 
ITEM 16.  EXHIBITS
 
    See Exhibit Index attached hereto on page E-1.
 
ITEM 17.  UNDERTAKINGS
 
    Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
registrant pursuant to the foregoing provisions, or otherwise, the registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable. In the event that a claim for indemnification against
such liabilities (other than the payment by the registrant of expenses incurred
or paid by a director, officer or controlling person of the registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in
 
                                      S-3
<PAGE>
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.
 
    The undersigned registrant hereby undertakes that:
 
    (1) For purposes of determining any liability under the Securities Act of
1933, the information omitted from the form of prospectus filed as part of this
registration statement in reliance upon Rule 430A and contained in a form of
prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4) or 497(h)
under the Securities Act shall be deemed to be part of this registration
statement as of the time it was declared effective.
 
    (2) For the purpose of determining any liability under the Securities Act of
1933, each post-effective amendment that contains a form of prospectus shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.
 
                                      S-4
<PAGE>
                                   SIGNATURES
 
    Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-2 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of LaFox, State of Illinois, on March 31, 1998.
 
<TABLE>
<S>                             <C>  <C>
                                RICHARDSON ELECTRONICS, LTD.
 
                                By:           /s/ EDWARD J. RICHARDSON
                                     -----------------------------------------
                                                Edward J. Richardson
                                               CHAIRMAN OF THE BOARD
 
                                By:             /s/ WILLIAM J. GARRY
                                     -----------------------------------------
                                                  William J. Garry
                                     VICE PRESIDENT AND CHIEF FINANCIAL OFFICER
</TABLE>
 
    Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed below by the following persons in the
capacities and on the dates indicated. Further, KNOW ALL MEN BY THESE PRESENTS,
that each person whose signature appears below hereby constitutes and appoints
Edward J. Richardson, William J. Garry and William G. Seils, and each of them
severally, his true and lawful attorney-in-fact and agent with full power of
substitution and resubstitution, for him and in his name, place and stead, in
any and all capacities, and on behalf of registrant, to sign any and all
amendments (including post-effective amendments or any abbreviated registration
statement, and any amendment thereto, filed pursuant to Rule 462(b)) to this
registration statement, and to file the same, with all exhibits thereto, and
other documents in connection therewith, with the Securities and Exchange
Commission, granting unto such attorneys-in-fact and agents full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises, as fully to all intents and purposes as
they might or could do in person, hereby ratifying and confirming all that such
attorneys-in-fact and agents, or any of them, or their substitutes, may lawfully
do or cause to be done by virtue hereof.
 
<TABLE>
<CAPTION>
             NAME                         TITLE                    DATE
- ------------------------------  --------------------------  -------------------
 
<C>                             <S>                         <C>
   /s/ EDWARD J. RICHARDSON     Chairman of the Board
- ------------------------------    (principal executive        March 31, 1998
     Edward J. Richardson         officer) and Director
 
     /s/ BRUCE W. JOHNSON
- ------------------------------  President and Director        March 31, 1998
       Bruce W. Johnson
 
                                Vice President and Chief
     /s/ WILLIAM J. GARRY         Financial Officer
- ------------------------------    (principal financial and    March 31, 1998
       William J. Garry           accounting officer) and
                                  Director
</TABLE>
 
                                      S-5
<PAGE>
<TABLE>
<CAPTION>
             NAME                         TITLE                    DATE
- ------------------------------  --------------------------  -------------------
 
<C>                             <S>                         <C>
       /s/ SCOTT HODES
- ------------------------------  Director                      March 31, 1998
         Scott Hodes
 
    /s/ SAMUEL RUBINOVITZ
- ------------------------------  Director                      March 31, 1998
      Samuel Rubinovitz
 
     /s/ ARNOLD R. ALLEN
- ------------------------------  Director                      March 31, 1998
       Arnold R. Allen
 
    /s/ KENNETH J. DOUGLAS
- ------------------------------  Director                      March 31, 1998
      Kenneth J. Douglas
 
      /s/ JACQUES BOUYER
- ------------------------------  Director                      March 31, 1998
        Jacques Bouyer
 
     /s/ HAROLD L. PURKEY
- ------------------------------  Director                      March 31, 1998
       Harold L. Purkey
 
       /s/ AD KETELAARS
- ------------------------------  Director                      March 31, 1998
         Ad Ketelaars
</TABLE>
 
                                      S-6
<PAGE>
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
EXHIBIT NO                                        DESCRIPTION                                          FILING METHOD
- -----------  --------------------------------------------------------------------------------------  -----------------
<S>          <C>                                                                                     <C>
         1   Form of Underwriting Agreement                                                                      E
 
      3(b)   By-laws of the Company, as amended incorporated by reference to the Company's Annual               NA
               Report on Form 10-K for the fiscal year ended May 31, 1997.
 
      4(a)   Restated Certificate of Incorporation of the Company, incorporated by reference to                 NA
               Appendix B to the Proxy Statement/ Prospectus dated November 13, 1986, incorporated
               by reference to the Company's Registration Statement on Form S-4 Commission File No.
               33-8696.
 
      4(b)   Specimen forms of Common Stock and Class B Common Stock certificates of the Company                NA
               incorporated by reference to Exhibit 4(a) to the Company's Registration Statement on
               Form S-1, Commission File No. 33-10834.
 
      4(c)   Indenture between the Company and Continental Illinois National Bank and Trust Company             NA
               of Chicago (including form of 7 1/4% Convertible Subordinated Debentures due
               December 15, 2006) incorporated by reference to Exhibit 4(b) to the Company's Annual
               Report on Form 10-K for the fiscal year ended May 31, 1987.
 
   4(c)(1)   First Amendment to the Indenture between the Company and First Trust of Illinois, a                NA
               National Association, as successor to Continental Illinois National Bank and Trust
               Company of Chicago, dated February 18, 1997, incorporated by reference to Exhibit
               4(a) to the Company's Quarterly Report on Form 10-Q for the quarter ended February
               28, 1997.
 
      4(d)   Indenture between the Company and American National Bank and Trust Company, as                     NA
               Trustee, for 8 1/4% Convertible Senior Subordinated Debentures due June 15, 2006
               (including form of 8 1/4% Convertible Senior Subordinated Debentures due June 15,
               2006) incorporated by reference to Exhibit 10 of the Company's Schedule 13E-4, filed
               February 18, 1997.
 
         5   Opinion of Ross & Hardies regarding legality                                                        E
 
     10(a)   $35,000,000 Amended and Restated Senior Revolving Credit Note Facility Agreement dated             NA
               August 20, 1996 with American National Bank and Trust Company incorporated by
               reference to Exhibit 10 to the Company's Quarterly Report on Form 10-Q for the
               quarter ended August 31, 1997.
 
  10(a)(1)   Second Amended Agreement regarding $35,000,000 Amended and Restated Senior Revolving               NA
               Credit and Note Facility Agreement made as of November 28, 1997 between Richardson
               Electronics, Ltd. as Borrower and American National Bank and Trust Company as
               Lender, incorporated by reference to Exhibit 10 to the Company's Quarterly Report on
               Form 10-Q for the quarter ended November 30, 1997.
 
  10(a)(2)   Loan Agreement dated as of March 1, 1998 among Richardson Electronics, Ltd., various               NA
               lending institutions and American National Bank and Trust Company of Chicago as
               Agent, establishing a $50,000,000 Credit Facility, incorporated by reference to
               Exhibit 10(a) of the Company's Quarterly Report on Form 10-Q for the quarter ended
               February 28, 1998.
</TABLE>
 
                                      S-7
<PAGE>
<TABLE>
<CAPTION>
EXHIBIT NO                                        DESCRIPTION                                          FILING METHOD
- -----------  --------------------------------------------------------------------------------------  -----------------
<S>          <C>                                                                                     <C>
     10(b)   Industrial Building Lease, dated April 10, 1996 between the Company and the American               NA
               National Bank and Trust Company, as trustee under Trust No. 56120 dated 2-23-83
               incorporated by reference to Exhibit 10(b) to the Company's Annual Report on Form
               10-K for the fiscal year ended May 31, 1996.
 
     10(c)   Revolving credit agreement and term loan dated February 18, 1997 between Richardson                NA
               Electronics Acquisition Corporation and First Chicago NBD Bank, Canada, together
               with guarantee of the Company, incorporated by reference to Exhibit 10(a) to the
               Company's Quarterly Report on Form 10-Q for the quarter ended February 28, 1997.
 
  10(c)(1)   Second Amending Agreement made as of August 22, 1997 between Burtek Systems Inc. as                NA
               Borrower and First Chicago NBD Bank, Canada as Lender and Richardson Electronics,
               Ltd. as Guarantor, incorporated by reference to Exhibit 10 to the Company's
               Quarterly Report on Form 10-Q for the quarter ended August 31, 1997.
 
  10(c)(2)   Amended and Restated Credit Agreement made as of March 1, 1998 between Burtek Systems              NA
               Inc. as Borrower and First Chicago NBD Bank, Canada as Lender and Richardson
               Electronics, Ltd. and Guarantor, incorporated by reference to Exhibit 10(b) to the
               Company's Quarterly Report on Form 10-Q for the quarter ended February 28, 1998.
 
     10(d)   The Corporate Plan for Retirement                                                                  NA
 
             The Profit Sharing / 401(k) Plan
 
             Fidelity Basic Plan Document No. 07 dated June 1, 1996, incorporated by reference to               NA
               Exhibit 10(d) to the Company's Annual Report on Form 10-K for the fiscal year ended
               May 31, 1996
 
     10(e)   The Company's Amended and Restated Incentive Stock Option Plan effective April 8, 1987             NA
               incorporated by reference to Exhibit 10(m) to the Company's Annual Report on Form
               10-K for the fiscal year ended May 31, 1987.
 
  10(e)(1)   First Amendment to the Company's Amended and Restated Incentive Stock Option Plan                  NA
               effective April 11, 1989 incorporated by reference to Exhibit 10(l)(1) to the
               Company's Annual Report on Form 10-K for the fiscal year ended May 31, 1989.
 
  10(e)(2)   Second Amendment to the Company's Amended and Restated Incentive Stock Option Plan                 NA
               effective April 11, 1989 incorporated by reference to Exhibit 10(l)(2) to the
               Company's Annual Report on Form 10-K for the fiscal year ended May 31, 1991.
 
  10(e)(3)   Third Amendment to the Company's Amended and Restated Incentive Stock Option Plan                  NA
               effective April 11, 1989 dated August 15, 1996, incorporated by reference to the
               Company's Proxy Statement used in connection with its Annual Meeting of Stockholders
               held October 1, 1996.
 
     10(f)   The Company's Amended and Restated Employees Stock Purchase Plan, incorporated by                  NA
               reference to the Company's Proxy Statement used in connection with its Annual
               Meeting of Stockholders held October 2, 1985.
</TABLE>
 
                                      S-8
<PAGE>
<TABLE>
<CAPTION>
EXHIBIT NO                                        DESCRIPTION                                          FILING METHOD
- -----------  --------------------------------------------------------------------------------------  -----------------
<S>          <C>                                                                                     <C>
  10(f)(1)   First Amendment to Amended and Restated Employees Stock Purchase Plan, incorporated by             NA
               reference to Appendix D to the Company's Proxy Statement/Prospectus dated November
               13, 1986 included in its Registration Statement on Form S-4, Commission File No.
               33-8696.
 
  10(f)(2)   Second Amendment to Amended and Restated Employees Stock Purchase Plan, incorporated               NA
               by reference to Appendix E to the Company's Proxy Statement/Prospectus dated
               November 13, 1986 included in its Registration Statement on Form S-4, Commission
               File No. 33-8696.
 
  10(f)(3)   Third Amendment to Amended and Restated Employees Stock Purchase Plan incorporated by              NA
               reference to Exhibit 10(m)(3) to the Company's Annual Report on Form 10-K for the
               fiscal year ended May 31, 1990.
 
  10(f)(4)   Fourth Amendment to Amended and Restated Employees Stock Purchase Plan incorporated by             NA
               reference to Exhibit 10(m)(4) to the Company's Annual Report on Form 10-K for the
               fiscal year ended May 31, 1991.
 
  10(f)(5)   Fifth Amendment to Amended and Restated Employees Stock Purchase Plan incorporated by              NA
               reference to Exhibit 10(m)(5) to the Company's Annual Report on Form 10-K for the
               fiscal year ended May 31, 1991.
 
  10(f)(6)   Sixth Amendment to Amended and Restated Employees Stock Purchase Plan dated August 15,             NA
               1996, incorporated by reference to the Company's Proxy Statement used in connection
               with its Annual Meeting of Stockholders held October 1, 1996.
 
     10(g)   Richardson Electronics, Ltd. Employees 1996 Stock Purchase Plan incorporated by                    NA
               reference to Appendix A of the Company's Proxy Statement dated September 3, 1996 for
               its Annual Meeting of Stockholders held on October 1, 1996.
 
     10(h)   Employees Stock Ownership Plan and Trust Agreement, effective as of June 1, 1987,                  NA
               dated July 14, 1994, incorporated by reference to Exhibit 10(f) to the Company's
               Annual Report on Form 10-K for the fiscal year ended May 31, 1994.
 
  10(h)(1)   First Amendment to Employees Stock Ownership Plan and Trust Agreement, dated July 12,              NA
               1995, incorporated by reference to Exhibit 10(g)(1) to the Company's Annual Report
               on Form 10-K for the fiscal year ended May 31, 1995.
 
  10(h)(2)   Second Amendment to Employees Stock Ownership Plan and Trust Agreement, dated July 12,             NA
               1995, dated April 10, 1996, incorporated by reference to the Company's Proxy
               Statement used in connection with its Annual Meeting of Stockholders held October 1,
               1996.
 
     10(i)   Stock Option Plan for Non-Employee Directors incorporated by reference to Appendix A               NA
               to the Company's Proxy Statement dated August 30, 1989 for its Annual Meeting of
               Stockholders held on October 18, 1989.
 
     10(j)   Richardson Electronics, Ltd. 1996 Stock Option Plan for Non-Employee Directors,                    NA
               incorporated by reference to Appendix C of the Company's Proxy Statement dated
               September 3, 1996 for its Annual Meeting of Stockholders held on October 1, 1996.
</TABLE>
 
                                      S-9
<PAGE>
<TABLE>
<CAPTION>
EXHIBIT NO                                        DESCRIPTION                                          FILING METHOD
- -----------  --------------------------------------------------------------------------------------  -----------------
<S>          <C>                                                                                     <C>
     10(k)   The Company's Employees' Incentive Compensation Plan incorporated by reference to                  NA
               Appendix A to the Company's Proxy Statement dated August 31, 1990 for its Annual
               Meeting of Stockholders held on October 9, 1990.
 
  10(k)(1)   First Amendment to Employees Incentive Compensation Plan incorporated by reference to              NA
               Exhibit 10(p)(1) to the Company's Annual Report on Form 10-K for the fiscal year
               ended May 31, 1991.
 
  10(k)(2)   Second Amendment to Employees Incentive Compensation Plan dated August 15, 1996,                   NA
               incorporated by reference to the Company's Proxy Statement used in connection with
               its Annual Meeting of Stockholders held October 1, 1996.
 
     10(l)   Richardson Electronics, Ltd. Employees' 1994 Incentive Compensation Plan incorporated              NA
               by reference to Exhibit A to the Company's Proxy Statement dated August 31, 1994 for
               its Annual Meeting of Stockholders held on October 11, 1994.
 
  10(l)(1)   First Amendment to the Richardson Electronics, Ltd. Employees' 1994 Incentive                      NA
               Compensation Plan dated August 15, 1996, incorporated by reference to the Company's
               Proxy Statement used in connection with its Annual Meeting of Stockholders held
               October 1, 1996.
 
     10(m)   Richardson Electronics, Ltd. 1996 Incentive Compensation Plan incorporated by                      NA
               reference to Appendix B of the Company's Proxy Statement dated September 3, 1996 for
               its Annual Meeting of Stockholders held on October 1, 1996.
 
     10(n)   Correspondence outlining Agreement between the Company and Arnold R. Allen with                    NA
               respect to Mr. Allen's employment by the Company, incorporated by reference to
               Exhibit 10(v) to the Company's Annual Report on Form 10-K, for the fiscal year ended
               May 31, 1985.
 
  10(n)(1)   Letter dated February 3, 1992 between the Company and Arnold R. Allen outlining Mr.                NA
               Allen's engagement as a consultant by the Company, incorporated by reference to
               Exhibit 10 (r)(1) to the Company's Annual Report on Form 10-K, for the fiscal year
               ended May 31, 1992.
 
  10(n)(2)   Letter dated April 1, 1993 between the Company and Arnold R. Allen regarding Mr.                   NA
               Allen's engagement as consultant by the Company, incorporated by reference to
               Exhibit 10(i)(2) to the Company's Annual Report on Form 10-K for the fiscal year
               ended May 31, 1994.
 
     10(o)   Letter dated January 14, 1992 between the Company and Jacques Bouyer setting forth the             NA
               terms of Mr. Bouyer's engagement as a management consultant by the Company for
               Europe, incorporated by reference to Exhibit 10(t)(1) to the Company's Annual Report
               on Form 10-K for the fiscal year ended on May 31, 1992.
 
  10(o)(1)   Letter dated January 15, 1992 between the Company and Jacques Bouyer setting forth the             NA
               terms of Mr. Bouyer's engagement as a management consultant by the Company for the
               United States, incorporated by reference to Exhibit 10(t)(1) to the Company's Annual
               Report on Form 10-K for the fiscal year ended on May 31, 1992.
</TABLE>
 
                                      S-10
<PAGE>
<TABLE>
<CAPTION>
EXHIBIT NO                                        DESCRIPTION                                          FILING METHOD
- -----------  --------------------------------------------------------------------------------------  -----------------
<S>          <C>                                                                                     <C>
     10(p)   Letter dated January 13, 1994 between the Company and Samuel Rubinovitz setting forth              NA
               the terms of Mr. Rubinovitz' engagement as management consultant by the Company
               incorporated by reference to Exhibit 10(m) to the Company's Annual Report on Form
               10-K for the fiscal year ended on May 31, 1994.
 
     10(q)   Letter dated April 4, 1994 between the Company and Bart F. Petrini setting forth the               NA
               terms of Mr. Petrini's employment by the Company, incorporated by reference to
               Exhibit 10(o) to the Company's Annual Report on Form 10-K for the fiscal year ended
               on May 31, 1994.
 
     10(r)   Letter dated May 20, 1994 between the Company and William J. Garry setting forth the               NA
               terms of Mr. Garry's employment by the Company, incorporated by reference to Exhibit
               10(p) to the Company's Annual Report on Form 10-K for the fiscal year ended on May
               31, 1994.
 
     10(s)   Letter dated October 17, 1994 between the Company and Flint Cooper setting forth the               NA
               terms of Mr. Cooper's employment by the Company, incorporated by reference to
               Exhibit 10 to the Company's Quarterly Report on Form 10-Q for the quarter ended
               November 30, 1994.
 
     10(t)   Agreement dated January 16, 1997 between the Company and Dennis Gandy setting forth                NA
               the terms of Mr. Gandy's employment by the Company, incorporated by reference to
               Exhibit 10(b) to the Company's Quarterly Report on Form 10-Q for the quarter ended
               February 28, 1997.
 
     10(u)   Agreement dated March 21, 1997 between the Company and David Gilden setting forth the              NA
               terms of Mr. Gilden's employment by the Company, incorporated by reference to
               Exhibit 10(c) to the Company's Quarterly Report on Form 10-Q for the quarter ended
               February 28, 1997.
 
     10(v)   Employment agreement dated as of November 7, 1996 between the Company and Bruce W.                 NA
               Johnson incorporated by reference to Exhibit (c)(4) of the Company's Schedule 13
               E-4, filed December 18, 1996.
 
     10(w)   Employment Agreement dated as of January 26, 1998 between the Company and Norman                   NA
               Hilgendorf, incorporated by reference to Exhibit 10(c) of the Company's Quarterly
               Report on Form 10-Q for the quarter ended February 28, 1998.
 
     10(x)   Employment contract dated May 10, 1993 as amended March 23, 1998 between the Company               NA
               and Pierluigi Calderone incorporated by reference to Exhibit 10(d) of the Company's
               Quarterly Report on Form 10-Q for the quarter ended February 28, 1998.
 
     10(y)   The Company's Directors and Officers Liability Insurance Policy issued by Chubb Group              NA
               of Insurance Companies Policy Number 8125-64-60A, incorporated by reference to
               Exhibit 10(u) to the Company's Annual Report on Form 10-K for the fiscal year ended
               May 31, 1991.
 
  10(y)(1)   The Company's Directors and Officers Liability Insurance Policy renewal issued by                  NA
               Chubb Group of Insurance Companies Policy Number 8125-64-60E, incorporated by
               reference to Exhibit 10(t)(1) to the Company's Annual Report on Form 10-K for the
               fiscal year ended May 31, 1996.
</TABLE>
 
                                      S-11
<PAGE>
<TABLE>
<CAPTION>
EXHIBIT NO                                        DESCRIPTION                                          FILING METHOD
- -----------  --------------------------------------------------------------------------------------  -----------------
<S>          <C>                                                                                     <C>
  10(y)(2)   The Company's Excess Directors and Officers Liability and Corporate Indemnification                NA
               Policy issued St. Paul Mercury Insurance Company Policy Number 900DX0216,
               incorporated by reference to Exhibit 10(t)(2) to the Company's Annual Report on Form
               10-K for the fiscal year ended May 31, 1996.
 
  10(y)(3)   The Company's Directors and Officers Liability Insurance Policy issued by CNA                      NA
               Insurance Companies Policy Number DOX600028634, incorporated by reference to Exhibit
               10(t)(3) to the Company's Annual Report on Form 10-K for the fiscal year ended May
               31, 1996.
 
     10(z)   Distributor Agreement, executed August 8, 1991, between Registrant and Varian                      NA
               Associates, Inc., incorporated by reference to Exhibit 10(d) of the Company's
               Current Report on Form 8-K for September 30, 1991.
 
  10(z)(1)   Amendment, dated as of September 30, 1991, between Registrant and Varian Associates,               NA
               Inc., incorporated by reference to Exhibit 10(e) of the Company's Current Report on
               Form 8-K for September 30, 1991.
 
  10(z)(2)   First Amendment to Distributor Agreement between Varian Associates, Inc. and the                   NA
               Company as of April 10, 1992, incorporated by reference to Exhibit 10(v)(5) of the
               Company's Annual Report on Form 10-K for the fiscal year ended May 31, 1992.
 
  10(z)(3)   Consent to Assignment and Assignment dated August 4, 1995 between Registrant and                   NA
               Varian Associates Inc., incorporated by reference to Exhibit 10(s)(4) of the
               Company's Annual Report on Form 10-K for the fiscal year ended May 31, 1995.
 
  10(z)(4)   Final Judgment, dated April 1, 1992, in the matter of United States of America v.                  NA
               Richardson Electronics, Ltd., filed in the United States District Court for the
               Northern District of Illinois, Eastern Division, as Docket No. 91 C 6211
               incorporated by reference to Exhibit 10(v)(7) to the Company's Annual Report on Form
               10-K for the fiscal year ended May 31, 1992.
 
    10(aa)   Trade Mark License Agreement dated as of May 1, 1991 between North American Philips                NA
               Corporation and the Company incorporated by reference to Exhibit 10(w)(3) of the
               Company's Annual Report on Form 10-K for the fiscal year ended May 31, 1991.
 
    10(bb)   Agreement among Richardson Electronics, Ltd., Richardson Electronique S.A., Covelec                NA
               S.A. (now known as Covimag S.A.), and Messrs. Denis Dumont and Patrick Pertzborn,
               delivered February 23, 1995, translated from French, incorporated by reference to
               Exhibit 10(b) to the Company's Report on Form 8-K dated February 23, 1995.
 
    10(cc)   Settlement Agreement by and between the United States of America and Richardson                    NA
               Electronics, Ltd. dated May 31, 1995 incorporated by reference to Exhibit 10(a) to
               the Company's Report on Form 8-K dated May 31, 1995.
 
     23(a)   Consent of Independent Auditors.                                                                    E
 
     23(b)   Consent of Ross & Hardies.                                                                         E+
</TABLE>
 
- ------------------------
 
NA Previously filed.
 
+   Included in Exhibit 5.
 
                                      S-12

<PAGE>
                             RICHARDSON ELECTRONICS, LTD.


                         3,000,000 SHARES OF COMMON STOCK (*)

                                UNDERWRITING AGREEMENT

                                _______________, 1998


CLEARY GULL REILAND & McDEVITT INC.
MCDONALD & COMPANY SECURITIES, INC.
  As Representatives of the Several Underwriters
  Identified in Schedule II Annexed Hereto
c/o Cleary Gull Reiland & McDevitt Inc.
100 East Milwaukee Avenue
Milwaukee, WI 53202

Ladies and Gentlemen:

     SECTION 1.  INTRODUCTORY.  Richardson Electronics, Ltd., a Delaware
corporation (the "Company"), and Edward J. Richardson (the "Selling
Stockholder") propose to sell 3,000,000 shares (the "Firm Shares") of common
stock, $.05 par value per share (the "Common Stock"), to the several
underwriters identified in Schedule II annexed hereto (the "Underwriters"), who
are acting severally and not jointly.  In addition, the Company and the Selling
Stockholder have agreed to grant to the Underwriters an option to purchase up to
450,000 additional shares of Common Stock (the "Optional Shares") as provided in
section 6 hereof.  The Firm Shares and, to the extent such option is exercised,
the Optional Shares are hereinafter collectively referred to as the "Shares."

     You, as representatives of the Underwriters (the "Representatives"), have
advised the Company and the Selling Stockholder that the Underwriters propose to
make a public offering of their respective portions of the Shares as soon
hereafter as in your judgment is advisable and that the public offering price of
the Shares initially will be $_____ per share.

     The Company and the Selling Stockholder hereby confirm their respective
agreements with the Underwriters and each other as follows:


- ------------------
(*)  PLUS AN OPTION TO ACQUIRE UP TO 450,000 ADDITIONAL SHARES OF COMMON STOCK
     FROM THE COMPANY AND THE SELLING SHAREHOLDERS TO COVER OVER-ALLOTMENTS.

<PAGE>

     SECTION 2.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  The Company
represents and warrants to, and agrees with, the several Underwriters, and shall
be deemed to represent and warrant to the several Underwriters on each Closing
Date (as hereinafter defined), that:

          (a)  Each of the Company and the subsidiaries of the Company that are
     listed on Exhibit 21 of the Company's most recent Annual Report on Form
     10-K incorporated by reference into the Registration Statement (as
     hereinafter defined) (individually, a "Subsidiary" and collectively, the
     "Subsidiaries") has been duly incorporated and is validly existing as a
     corporation and in good standing under the laws of its jurisdiction of
     incorporation, with full corporate power and authority to own, lease and
     operate its properties and to conduct its business as presently conducted
     and described in the Prospectus (as hereinafter defined) and the
     Registration Statement; each of the Company and the Subsidiaries is duly
     registered and qualified to do business as a foreign corporation under the
     laws of, and is in good standing as such in, each jurisdiction in which
     such registration or qualification is required, except where the failure to
     so register or qualify would not have a material adverse effect on the
     condition (financial or other), business, property, net worth, results of
     operations or prospects of the Company and the Subsidiaries, taken as a
     whole ("Material Adverse Effect"); and no proceeding has been instituted in
     any such jurisdiction revoking, limiting or curtailing, or seeking to
     revoke, limit or curtail, such power and authority or qualification. 
     Complete and correct copies of the certificate of incorporation, articles
     of incorporation, or other organizational documents, as amended or restated
     (the "Articles of Incorporation") and by-laws, as amended or restated
     ("By-laws"), of the Company and each of the Subsidiaries or the equivalent
     documents to the Articles of Incorporation and By-laws for those
     Subsidiaries which have been formed in jurisdictions in which Articles of
     Incorporation and By-laws are not applicable, as in effect on the date
     hereof have been delivered to the Representatives, and no changes thereto
     will be made on or subsequent to the date hereof and prior to each Closing
     Date.

          (b)  The shares of Common Stock issued and outstanding immediately
     prior to the issuance and sale of the Shares hereunder as set forth in the
     Prospectus have been duly authorized and validly issued, are fully paid and
     nonassessable and conform to the description thereof contained in the
     Prospectus and the Registration Statement.  There are no preemptive,
     preferential or, except as described in the Prospectus, other rights to
     subscribe for or purchase any shares of Common Stock (including the
     Shares), and no shares of Common Stock have been issued in violation of
     such rights.  The Shares to be issued and sold to the Underwriters have
     been duly authorized and, when issued, delivered and paid for pursuant to
     this Agreement, will be validly issued, fully paid and nonassessable and
     will conform to the description thereof contained in the Prospectus and the
     Registration Statement.  The delivery of certificates for the Shares to be
     issued and sold hereunder and payment therefor pursuant to the terms of
     this Agreement will pass valid title to such Shares to the Underwriters,
     free and clear of any lien, claim, encumbrance or defect in title.  Except
     as described in the Prospectus, there are no 

                                           -2-

<PAGE>

     outstanding options, warrants or other rights of any description, 
     contractual or otherwise, entitling any person to be issued any class of 
     security by the Company or any Subsidiary, and there are no holders of 
     Common Stock or other securities of the Company or any Subsidiary, or of
     securities that are convertible or exchangeable into Common Stock or other
     securities of the Company or any Subsidiary, that have rights to the 
     registration of such Common Stock or securities under the Securities Act 
     of 1933, as amended, and the regulations thereunder (together, the "Act")
     or the securities laws or regulations of any of the states (the "Blue 
     Sky Laws"). 

          (c)  Except for the Subsidiaries, and as otherwise set forth in the
     Prospectus or Schedule 2(c) hereto, the Company has no subsidiaries and
     does not own any equity interest in or control, directly or indirectly, any
     other corporation, limited liability company, partnership, joint venture,
     association, trust or other business organization.  Except as set forth on
     Schedule 2(c) hereto, the Company owns directly or indirectly all of the
     issued and outstanding capital stock of each Subsidiary, free and clear of
     any and all liens, claims, encumbrances or security interests, and all such
     capital stock has been duly authorized and validly issued and is fully paid
     and nonassessable.  There are no outstanding options, warrants or other
     rights of any description, contractual or otherwise, entitling any person
     to subscribe for or purchase any shares of capital stock of any Subsidiary.

          (d)  The Company has full corporate power and authority to enter into
     and perform this Agreement, and the execution and delivery by the Company
     of this Agreement and the performance by the Company of its obligations
     hereunder and the consummation of the transactions described herein, have
     been duly authorized with respect to the Company by all necessary corporate
     action and will not: (i) violate any provisions of the Articles of
     Incorporation or By-laws of the Company or any Subsidiary; (ii) violate any
     provisions of, or result in the breach, modification or termination of, or
     constitute a default under, any provision of any agreement, lease,
     franchise, license, indenture, permit, mortgage, deed of trust, evidence of
     indebtedness or other instrument to which the Company or any Subsidiary is
     a party or by which the Company or any Subsidiary, or any property owned or
     leased by the Company or any Subsidiary, may be bound or affected; (iii)
     violate any statute, ordinance, rule or regulation applicable to the
     Company or any Subsidiary, or order or decree of any court, regulatory or
     governmental body, arbitrator, administrative agency or instrumentality of
     the United States or other country or jurisdiction having jurisdiction over
     the Company or any Subsidiary; or (iv) result in the creation or imposition
     of any lien, charge or encumbrance upon any property or assets of the
     Company or any Subsidiary.  No consent, approval, authorization or other
     order of any court, regulatory or governmental body, arbitrator,
     administrative agency or instrumentality of the United States or other
     country or jurisdiction is required for the execution and delivery of this
     Agreement by the Company, the performance of its obligations hereunder or
     the consummation of the transactions contemplated hereby, except for
     compliance with the Act, the Securities Exchange Act of 1934, as amended,
     and the regulations thereunder (together, the "Exchange Act"), the Blue Sky
     Laws 

                                       -3-

<PAGE>

     applicable to the public offering of the Shares by the several 
     Underwriters and the clearance of such offering and the underwriting
     arrangements evidenced hereby with the National Association of Securities
     Dealers, Inc. (the "NASD").  This Agreement has been duly executed and
     delivered by and on behalf of the Company and is a valid and binding
     agreement of the Company enforceable against the Company in accordance with
     its terms.

          (e)  A registration statement on Form S-2 (Reg. No. 333-______) with
     respect to the Shares, including a preliminary form of prospectus, has been
     carefully prepared by the Company in conformity with the requirements of
     the Act and has been filed with the Securities and Exchange Commission (the
     "Commission"). The conditions for use of Form S-2, set forth in the General
     Instructions thereto, have been satisfied.  Such registration statement, as
     finally amended and revised at the time such registration statement was or
     is declared effective by the Commission (including the information
     contained in the form of final prospectus, if any, filed with the
     Commission pursuant to Rule 424(b) and Rule 430A under the Act and deemed
     to be part of the registration statement if the registration statement has
     been declared effective pursuant to Rule 430A(b)) and as thereafter amended
     by post-effective amendment, if any, is herein referred to as the
     "Registration Statement." The related final prospectus in the form first
     filed with the Commission pursuant to Rule 424(b) or, if no such filing is
     required, as included in the Registration Statement, or any supplement
     thereto, is herein referred to as the "Prospectus." The prospectus subject
     to completion in the form included in the Registration Statement at the
     time of the initial filing of the Registration Statement with the
     Commission, and each such prospectus as amended from time to time until the
     date of the Prospectus, is referred to herein as the "Preliminary
     Prospectus."  Reference made herein to each Preliminary Prospectus or the
     Prospectus, as amended or supplemented, shall include all documents and
     information incorporated by reference therein under the Exchange Act.  The
     Company has prepared and filed such amendments to the Registration
     Statement since its initial filing with the Commission, if any, as may have
     been required to the date hereof, and will file such additional amendments
     thereto as may hereafter be required.  There have been delivered to the
     Representatives two signed copies of the Registration Statement and each
     amendment thereto, if any, including one copy of any document filed under
     the Exchange Act and deemed to be incorporated by reference into the
     Registration Statement, together with one copy of each exhibit filed
     therewith or incorporated by reference therein, and such number of
     conformed copies for each of the Underwriters of the Registration Statement
     and each amendment thereto, if any (but without exhibits), and of each
     Preliminary Prospectus and of the Prospectus as the Representatives have
     requested.

          (f)  Neither the Commission nor any state securities commission has
     issued any order preventing or suspending the use of any Preliminary
     Prospectus, nor, to the knowledge of the Company, have any proceedings for
     that purpose been initiated or threatened, and each Preliminary Prospectus
     filed with the Commission as part of the Registration Statement as
     originally filed or as part of any amendment or supplement thereto complied
     when so filed with the requirements of the Act and, as of its date, did not
     include any untrue statement of a material fact or omit to state a material
     fact required 

                                        -4-

<PAGE>

     to be stated therein or necessary to make the statements therein not 
     misleading.  As of the effective date of the Registration Statement, and
     at all times subsequent thereto up to each Closing Date, the Registration
     Statement and the Prospectus contained or will contain all statements that
     are required to be stated therein in accordance with the Act and conformed
     or will conform in all respects to the requirements of the Act, and neither
     the Registration Statement nor the Prospectus included or will include any
     untrue statement of a material fact or omitted or will omit to state a 
     material fact required to be stated therein or necessary to make the 
     statements, therein not misleading.  Neither the Company, nor to the 
     Company's knowledge, any person that controls, is controlled by (including
     the Subsidiaries) or is under common control with the Company, has 
     distributed or will distribute prior to each Closing Date any offering
     material in connection with the offering and sale of the Shares other than
     a Preliminary Prospectus, the Prospectus, the Registration Statement or
     other materials permitted by the Act and provided to the Representatives.

          (g)  The documents that are incorporated by reference in each
     Preliminary Prospectus, the Prospectus or the Registration Statement or
     from which information is so incorporated by reference, when they became
     effective or were filed with the Commission, as the case may be, compiled
     with the requirements of the Act or the Exchange Act, as applicable, and
     when read together with the other information included in such Preliminary
     Prospectus, the Prospectus or the Registration Statement, as the case may
     be, do not contain an untrue statement of a material fact or omit to state
     a material fact required to be stated therein or necessary to make the
     statements therein, in light of the circumstances under which they were
     made, not misleading.

          (h)  Ernst & Young LLP, which has expressed its opinion with respect
     to the audited consolidated financial statements filed with the Commission
     or incorporated by reference and included as a part of each Preliminary
     Prospectus, the Prospectus or the Registration Statement are independent
     accountants as required by the Act.

          (i)  The consolidated financial statements and the related notes
     thereto included or incorporated by reference in each Preliminary
     Prospectus, the Prospectus and the Registration Statement present fairly
     the financial position, results of operations and cash flows of the Company
     as of their respective dates or for the respective periods covered thereby,
     all in conformity with generally accepted accounting principles
     consistently applied throughout the periods involved.  The financial
     statement schedules, if any, included in the Registration Statement present
     fairly the information required to be stated therein on a basis consistent
     with the consolidated financial statements of the Company contained
     therein.  The Company had an outstanding capitalization as set forth in the
     Registration Statement and under "Capitalization" in the Prospectus as of
     the date indicated therein, and there has been no material change thereto
     since such date except as disclosed in the Prospectus. The financial and
     statistical information and data relating to the Company in each
     Preliminary Prospectus, the Prospectus and the Registration Statement are
     accurately presented and prepared on a basis consistent with the audited

                                       -5-

<PAGE>

     consolidated financial statements and books and records of the Company. 
     The consolidated financial statements and schedules and the related notes
     thereto included or incorporated by reference in each Preliminary
     Prospectus, the Prospectus or the Registration Statement are the only such
     financial statements and schedules required under the Act to be set forth
     therein.

          (j)  Neither the Company nor any Subsidiary is, nor with the giving of
     notice or passage of time or both, would be, in violation or in breach of:
     (i) its respective Articles of Incorporation, or By-laws; (ii) any statute,
     ordinance, order, rule or regulation applicable to the Company or such
     Subsidiary; (iii) any order or decree of any court, regulatory body,
     arbitrator, administrative agency or other instrumentality of the United
     States or other country or jurisdiction having jurisdiction over the
     Company or such Subsidiary; or (iv) any provision of any agreement, lease,
     franchise, license, indenture, permit, mortgage, deed of trust, evidence of
     indebtedness or other instrument to which the Company or such Subsidiary is
     a party or by which any property owned or leased by the Company or such
     Subsidiary is bound or affected, except, in the cases of clauses (ii) and
     (iv) above, for such violations or breaches that would not have a Material
     Adverse Effect.  Neither the Company nor any Subsidiary has received notice
     of any violation of any applicable statute, ordinance, order, rule or
     regulation applicable to the Company or any Subsidiary.  The Company and
     each Subsidiary have obtained and hold, and are in compliance with, all
     permits, certificates, licenses, approvals, registrations, franchises,
     consents and authorizations of governmental or regulatory authorities
     required under all laws, rules and regulations in connection with their
     businesses (hereinafter "permit" or "permits") except where such failure
     would not have a Material Adverse Effect, and all of such permits are in
     full force and effect; and the Company and each Subsidiary have fulfilled
     and performed all of their respective obligations with respect to each such
     permit and no event has occurred which would result in, or after notice or
     lapse of time would result in, revocation or termination of any such permit
     or result in any other impairment of the rights of the holder of such
     permit.  Neither the Company nor any Subsidiary is or has been (by virtue
     of any action, omission to act, contract to which it is a party or other
     occurrence) in violation of any applicable foreign, federal, state,
     municipal or local statutes, laws, ordinances, rules, regulations or orders
     (including those relating to environmental protection, occupational safety
     and health and equal employment practices) heretofore or currently in
     effect, the violation of which could have a Material Adverse Effect.

          (k)  There are no legal or governmental proceedings or investigations
     pending or, to the knowledge of the Company, threatened to which the
     Company or any Subsidiary is or may be a party or to which any property
     owned or leased by the Company or any Subsidiary is or may be subject,
     including, without limitation, any such proceedings that are related to
     environmental or employment discrimination matters, which are required to
     be described in the Registration Statement or the Prospectus which are not
     so described, or which question the validity of this Agreement or any
     action taken or to be taken pursuant hereto.  Except as described in the
     Registration Statement or the Prospectus, 

                                   -6-

<PAGE>

     neither the Company nor any Subsidiary: (i) is in violation of any statute,
     ordinance, rule or regulation, or any decision, order or decree of any 
     court, regulatory body, arbitrator, administrative agency or other 
     instrumentality of the United States or other country or jurisdiction 
     having jurisdiction over the Company or such Subsidiary relating to the 
     use, disposal or release of hazardous or toxic substances or relating to 
     the protection or restoration of the environmental or human exposure to 
     hazardous or toxic substances (collectively, "environmental laws"); 
     (ii) owns or operates any real property contaminated with any substance
     that is subject to any environmental laws; (iii) is liable for any 
     off-site disposal or contamination pursuant to any environmental laws; or
     (iv) is subject to any claim relating to any environmental laws, which 
     violation, contamination, liability or claim identified in (i) through 
     (iv) above could have a Material Adverse Effect.

          (l)  There is no transaction, relationship, obligation, agreement or
     other document required to be described in the Registration Statement or
     the Prospectus or to be filed or deemed to be filed as an exhibit to the
     Registration Statement by the Act, which has not been described or filed as
     required.  All such contracts or agreements to which the Company or any
     Subsidiary is a party have been duly authorized, executed and delivered by
     the Company or such Subsidiary, constitute valid and binding agreements of
     the Company or such Subsidiary, and are enforceable by and against the
     Company or such Subsidiary, in accordance with the respective terms
     thereof, subject to bankruptcy, insolvency, and moratorium laws and other
     principles of equity.

          (m)  The Company or a Subsidiary has good and valid title to all
     property and assets reflected as owned by the Company or such Subsidiary in
     the Company's consolidated financial statements included or incorporated by
     reference in the Registration Statement (or the Prospectus), free and clear
     of all liens, claims, mortgages, security interests or other encumbrance of
     any kind or nature whatsoever except those, if any, reflected in such
     financial statements (or elsewhere in the Registration Statement or the
     Prospectus).  All property (real and personal) held or used by the Company
     or a Subsidiary under leases, licenses, franchises or other agreements is
     held by the Company or such Subsidiary under valid, subsisting, binding and
     enforceable leases, franchises, licenses or other agreements.

          (n)  Neither the Company nor, to the Company's knowledge, any person
     that controls, is controlled by (including the Subsidiaries) or is under
     common control with the Company has taken or will take, directly or
     indirectly, any action designed to cause or result in, or which
     constituted, or which could cause or result in, stabilization or
     manipulation, under the Exchange Act or otherwise, of the price of any
     security of the Company to facilitate the sale or resale of the Common
     Stock.

          (o)  Except as described in the Registration Statement or the
     Prospectus, since the respective dates as of which information is given in
     the Registration Statement or the Prospectus and prior to each Closing
     Date: (i) neither the Company nor any Subsidiary has or will have incurred
     any liability or obligation, direct or contingent, or entered into 

                                         -7-

<PAGE>

     any transaction, that is material to the Company, except in the ordinary
     course of business; (ii) except for regular quarterly dividends paid in the
     ordinary course of business, if any, the Company has not and will not have
     paid or declared any dividend or other distribution with respect to its
     capital stock and neither the Company nor any Subsidiary is or will be
     delinquent in the payment of principal or interest on any outstanding debt
     obligation; and (iii) there has not been and will not have been any change
     in the capital stock, any material change in the indebtedness of the
     Company or any Subsidiary, or any change or development involving or which
     could be expected to involve, a Material Adverse Effect, whether or not
     arising from transactions in the ordinary course of business.

          (p)  Neither the Company nor any person that controls, is controlled
     by (including the Subsidiaries) or is under common control with the Company
     has, directly or indirectly: (i) made any unlawful contribution to any
     candidate for political office, or failed to disclose fully any
     contribution in violation of law; or (ii) made any payment to any federal,
     state or foreign governmental officer or official, or other person charged
     with similar public or quasi-public duties, other than payments required or
     permitted by the laws of the United States or any jurisdiction thereof or
     applicable foreign jurisdictions.

          (q)  The Company or a Subsidiary owns or possesses adequate rights to
     use all patents, patent applications, trademarks, service marks, trade
     names, trademark registrations, service mark registrations, copyrights and
     licenses presently used in or necessary for the conduct of its business or
     ownership of its properties, and neither the Company nor any Subsidiary has
     violated or infringed upon the rights of others, or received any notice of
     conflict with the asserted rights of others, in respect thereof, except
     where such violation would not have a Material Adverse Effect.

          (r)  The Company or a Subsidiary has in place and effective such
     policies of insurance, with limits of liability in such amounts, as are
     normal and prudent in the ordinary course of the business of the Company
     and its Subsidiaries.

          (s)  No labor dispute with the employees of the Company or any
     Subsidiary, which dispute could reasonably be expected to result in a
     Material Adverse Effect, exists or, to the knowledge of the Company, is
     imminent, and neither the Company nor any Subsidiary is a party to any
     collective bargaining agreement and, to the knowledge of the Company, no
     union organizational attempts are pending.  There has been no change in the
     relationship of the Company or any Subsidiary with any of its principal
     suppliers, manufacturers, contractors or customers resulting in or that
     could result in a Material Adverse Effect.

          (t)  Neither the Company nor any Subsidiary is an "investment
     company", an "affiliated person" of, or "promoter" or "principal
     underwriter" for, an "investment company", as such terms are defined in the
     Investment Company Act of 1940, as amended.


                                  -8-
<PAGE>

          (u)  Except for (i) an appeal which the Company will file with respect
     to an anticipated Notice of Deficiency from the Internal Revenue Service
     contesting the Company's utilization of a ten-year carryback provision
     contained in the Internal Revenue Code, which appeal, if unsuccessful,
     would not have a Material Adverse Effect on the Company, and (ii) a 
     value-added tax assessment by the French government with respect to the
     disposition of the Brive facility which is being contested by the Company,
     which assessment, if paid, would not have a Material Adverse Effect on the
     Compnay, all federal, state and local tax returns required to be filed by
     or on behalf of the Company or any Subsidiary have been filed (or are the
     subject of valid extension) with the appropriate federal, state and local
     authorities, and all such tax returns, as filed, are accurate in all
     material respects; all federal, state and local taxes (including estimated
     tax payments) required to be shown on all such tax returns or claimed to be
     due from or with respect to the business of the Company or such Subsidiary
     have been paid or reflected as a liability on the financial statements of
     the Company or such Subsidiary for appropriate periods; all deficiencies
     asserted as a result of any federal, state or local tax audits have been
     paid or finally settled, and no issue has been raised in any such audit
     which, by application of the same or similar principles, reasonably could
     be expected to result in a proposed deficiency for any other period not so
     audited; no state of facts exist or has existed which would constitute
     grounds for the assessment of any tax liability with respect to the periods
     which have not been audited by appropriate federal, state or local
     authorities; there are no outstanding agreements or waivers extending the
     statutory period of limitation applicable to any federal, state or local
     tax return of any period; and neither the Company nor any Subsidiary has
     ever been a member of an affiliated group of corporations filing
     consolidated federal income tax returns, other than a group of which the
     Company is and has been the common parent.

          (v)  Except for the Company's group health, life, disability or other
     welfare plan and its contributory or noncontributory defined contribution
     retirement plan and defined benefit retirement plans listed as Exhibits to
     the Company's most recent Annual Report on Form 10-K (collectively, the
     "Plans"), neither the Company nor any Subsidiary is a participating
     employer or plan sponsor with respect to any employee pension benefit plan
     as defined in Section 3(2) of the Employee Retirement Income Security Act
     of 1974, as amended ("ERISA"), or any employee welfare benefit plan as
     defined in Section 3(l) of ERISA, including, without limitation, any
     multiemployer welfare or pension plan.  With respect to the Plans, the
     Company is in substantial compliance with all applicable regulations,
     including ERISA and the Code.  With respect to each defined benefit
     retirement plan, such plan does not have benefit liabilities (as defined in
     Section 4001(a)(16) of ERISA) exceeding the assets of the plan.  The
     Company or the administrator of each of the Plans, as the case may be, has
     timely filed the reports required to be filed by ERISA and the Code in
     connection with the maintenance of the Plans, and no facts, including,
     without limitation, any "reportable event" as defined by ERISA and the
     regulations thereunder, exist in connection with the Plans which, under
     applicable law, would constitute grounds for the termination of any of the
     Plans by the Pension Benefit Guaranty Corporation or for the appointment by
     the appropriate United 

                                     -9-

<PAGE>

     States District Court of a trustee to administer any of the Plans.

          (w)  The Company and each Subsidiary maintain a system of internal
     accounting controls sufficient to provide reasonable assurances that: (i)
     transactions are executed in accordance with management's general or
     specific authorizations; (ii) transactions are recorded as necessary to
     permit preparation of consolidated financial statements in conformity with
     generally accepted accounting principles and to maintain accountability for
     assets; (iii) access to assets is permitted only in accordance with
     management's general or specific authorizations; and (iv) the recorded
     accountability for assets is compared with existing assets at reasonable
     intervals and appropriate action is taken with respect to any differences.

          (x)  None of the Company, any Subsidiary, any officer or director of
     the Company or any Subsidiary, or, to the Company's knowledge, any person
     who owns, of record or beneficially, any class of securities issued by the
     Company is: (i) an officer, director or partner of any brokerage firm,
     broker or dealer that is a member of the NASD ("NASD Member"); or (ii)
     directly or indirectly, a "person associated with" an NASD member or an
     "affiliate", of an NASD member, as such terms are used in the NASD Rules of
     the Association.  

          (y)  The Common Stock has been registered pursuant to Section 12(g) of
     the Exchange Act.  The Company has prepared and filed with the Commission a
     registration statement for the Common Stock pursuant to Section 12(g) of
     the Exchange Act.  Such registration statement either has been declared
     effective by the Commission under the Exchange Act or will be declared
     effective by the Commission prior to or concurrently with the commencement
     of the public offering of the Shares.  The Common Stock has been approved
     for designation upon notice of issuance as a Nasdaq National Market
     security on The Nasdaq Stock Market ("Nasdaq") concurrently with the
     effectiveness of the Registration Statement.

          (z)  All offers and sales of the securities of the Company and each
     Subsidiary prior to the date hereof were made in compliance with the Act
     and all other applicable state and federal laws or regulations.

          (aa)  Except with respect to Shares of Common Stock sold to the
     Company in connection with a "cashless exercise" relating to any of the
     Company's stock option plans, the Company has obtained for the benefit of
     the Underwriters the agreement, enforceable by Cleary Gull Reiland &
     McDevitt Inc. ("Cleary Gull"), of each of the officers and directors of
     the Company, and each of the stockholders of the Company who are listed on
     Schedule III hereof, who owns of record the number of shares of Common
     Stock set forth on Schedule III opposite such stockholder's name, that for
     a period of 120 days after the date of the Prospectus, such persons will
     not, without the prior written consent of Cleary Gull, directly or
     indirectly, offer, sell, transfer, or pledge, contract to sell, transfer or
     pledge, or cause or in any way permit to be sold, transferred, pledged, or
     otherwise 

                                       -10-

<PAGE>

     disposed of, except where shares of Common Stock are required to
     be pledged by the Selling Stockholder pursuant to an existing line of
     credit with American National Bank, which line of credit shall not be
     increased, any: (i) shares of Common Stock; (ii) rights to purchase shares
     of Common Stock (including, without limitation, shares of Common Stock that
     may be deemed to be beneficially owned by any such stockholder in
     accordance with the applicable regulations of the Commission and shares of
     Common Stock that may be issued upon the exercise of a stock option,
     warrant or other convertible security); or (iii) securities that are
     convertible or exchangeable into shares of Common Stock. 

          (bb)  A copy of the Custody Agreement executed by the Selling
     Stockholder and a copy of the Selling Stockholder's Selling Stockholder's
     Questionnaire have been furnished to counsel for the Underwriters prior to
     the date hereof, along with such other information as such counsel may
     reasonably request in connection with their review thereof.

     A certificate signed by any officer of the Company and delivered to the
Representatives or to counsel for the Underwriters shall be deemed a
representation and warranty by the Company to the Underwriters as to the matters
covered thereby.  A certificate delivered by the Company to its counsel for
purposes of enabling such counsel to render the opinion referred to in section
10(d) will also be furnished to the Representatives and counsel for the
Underwriters and shall be deemed to be additional representations and warranties
to the Underwriters by the Company as to the matters covered thereby.

     SECTION 3.  REPRESENTATIONS AND WARRANTIES OF THE SELLING STOCKHOLDER.  The
Selling Stockholder represents and warrants to and agrees with the several
Underwriters and the Company, and shall be deemed to represent and warrant to
the several Underwriters and the Company on each Closing Date, that:

          (a)  The Selling Stockholder has duly executed a custody agreement
     ("Custody Agreement") naming __________________ as custodian ("Custodian")
     of the Shares of the Selling Stockholder for the purpose of selling such
     Shares to the Underwriters on each Closing Date and receiving payment
     therefor.

          (b)  All consents, approvals, authorizations and orders necessary for
     the execution and delivery by the Selling Stockholder of this Agreement and
     the Custody Agreement  and for the sale and delivery of the Shares to be
     sold by the Selling Stockholder hereunder, as set forth on Schedule I
     annexed hereto, have been obtained.  The Selling Stockholder has, and at
     the time of delivery thereof hereunder the Selling Stockholder will have,
     good and valid title to the Shares proposed to be sold by the Selling
     Stockholder hereunder, free and clear of all voting trust arrangements,
     liens, encumbrances, security interests, equities, and claims, other than
     any created by the Custody Agreement or this Agreement for the benefit of
     the Underwriters.  The Selling Stockholder has full right, power and
     authority to enter into this Agreement and the Custody Agreement and to
     sell, 

                                  -11-

<PAGE>

     assign, transfer and deliver such Shares hereunder, free and clear of
     all voting trust arrangements, liens, encumbrances, security interests,
     equities, claims and community or marital property rights, other than any
     created by the Custody Agreement or this Agreement for the benefit of the
     Underwriters.  Upon delivery of and payment for such Shares hereunder, the
     Underwriters will acquire good and valid title thereto, free and clear of
     all voting trust arrangements, liens, encumbrances, security interests,
     equities, claims and community or marital property rights.

          (c)  The Selling Stockholder has not distributed and will not
     distribute any Preliminary Prospectus, the Prospectus or any other material
     in connection with the offering and sale of the Shares.  The Selling
     Stockholder has not taken and will not take, directly or indirectly, any
     action designed to or which could cause or result in, under the Exchange
     Act or otherwise, stabilization or manipulation of the price of any
     security of the Company to facilitate the sale or resale of the Common
     Stock.

          (d)  The execution, delivery and performance by the Selling
     Stockholder of this Agreement and the Custody Agreement will not, if
     applicable, result in the violation of any provisions of the Articles of
     Incorporation, By-laws or other governing documents of the Selling
     Stockholder, or constitute a breach, or be in contravention, of any
     provision of any agreement, franchise, license, indenture, mortgage, deed
     of trust or other instrument to which the Selling Stockholder is a party or
     by which the Selling Stockholder or the Selling Stockholder's property may
     be bound or affected, or any statute, rule or regulation applicable to the
     Selling Stockholder, or violate any order or decree of any court,
     regulatory body, administrative agency or other governmental body having
     jurisdiction over the Selling Stockholder or any of the Selling
     Stockholder's property.  No consent, approval, authorization or other order
     of any court, regulatory body, administrative agency or other governmental
     body is required for the execution and delivery of, and performance under,
     this Agreement by the Selling Stockholder or the consummation by the
     Selling Stockholder of the transactions contemplated by this Agreement,
     except for compliance with the Act, the Exchange Act, the Blue Sky Laws
     applicable to the public offering of the Shares by the Underwriters and the
     clearance of such offering with the NASD.   The Selling Stockholder hereby
     represents and warrants that the Custody Agreement has been duly executed
     and delivered by or on behalf of the Selling Stockholder to the
     Representatives.

          (e)  This Agreement and the Custody Agreement are each valid and
     binding agreements of the Selling Stockholder enforceable in accordance
     with their respective terms, subject to bankruptcy, insolvency, and
     moratorium laws and other principles of equity.

          (f)  The Selling Stockholder has deposited in custody, under the
     Custody Agreement, certificates in negotiable form for the Shares to be
     sold hereunder by the Selling Stockholder as set forth opposite the Selling
     Stockholder's name on Schedule I annexed hereto (including the maximum
     number of Optional Shares set forth on Schedule 

                                       -12-

<PAGE>

     1) for the purpose of further delivery pursuant to this Agreement.  The
     Selling Stockholder agrees that the Shares of the Selling Stockholder on
     deposit with the Custodian are subject to the interests of the Company and
     the Underwriters, that the arrangements made for such custody, pursuant to
     the Custody Agreement, are to that extent irrevocable, and that the 
     obligations of the Selling Stockholder hereunder and under the Custody 
     Agreement shall not be terminated, except as provided in this Agreement and
     the Custody Agreement, by any act of the Selling Stockholder, by operation
     of law, by the death or incapacity of the Selling Stockholder or, by the 
     occurrence of any other event.  If any Selling Stockholder should die or 
     become incapacitated, or if any other event should occur before the 
     delivery of the Shares hereunder, the certificates for Shares then on 
     deposit with the Custodian shall, to the extent such Shares are purchased
     by the Underwriters, be delivered by the Custodian in accordance with the
     terms and conditions of this Agreement and the Custody Agreement as if 
     such death, incapacity, or other event had not occurred, regardless of 
     whether or not the Custodian shall have received notice thereof.  The 
     Selling Stockholder represents that the Custodian has been authorized to
     receive and acknowledge receipt of the proceeds of sale of the Shares sold
     by the Selling Stockholder against delivery thereof and otherwise to act
     on behalf of the Selling Stockholder.

          (g)  Insofar as it relates to the Selling Stockholder, each
     Preliminary Prospectus, as of its date, has conformed in all material
     respects with the requirements of the Act and, as of its date, has not
     included any untrue statement of a material fact or omitted to state a
     material fact necessary to, make the statements therein not misleading; and
     on the effective date of the Registration Statement and at all times
     subsequent thereto up to each Closing Date, (i) the Registration Statement
     and the Prospectus, as they relate to the Selling Stockholder, did or will
     conform to the requirements of the Act, and (ii) neither the Registration
     Statement nor the Prospectus as it relates to the Selling Stockholder did
     or will include any untrue statement of a material fact or omit to state
     any material fact required to be stated therein or necessary to make the
     statements therein not misleading.

          (h)  To the knowledge of the Selling Stockholder, the representations
     and warranties of the Company set forth in section 2 hereof are true and
     correct.

          (i)  The information contained in the Selling Stockholder's Selling
     Stockholders' Questionnaire completed in connection with the Company's
     public offering and delivered to the Representatives was, as of the date of
     such questionnaire, and is, as of the date of this Agreement, true and
     correct.

     A certificate signed by or on behalf of the Selling Stockholder as such and
delivered to the Representatives or to counsel for the Underwriters shall be
deemed a representation and warranty by the Selling Stockholder to the
Underwriters as to the matters covered thereby.  A certificate delivered by or
on behalf of the Selling Stockholder to counsel for the Selling Stockholder for
purposes of enabling such counsel to render the opinion referred in Section
10(e) will also be furnished to the Representatives and counsel for the
Underwriters and shall be 


                                       -13-

<PAGE>


deemed to be additional representations and warranties to the Underwriters by 
the Selling Stockholder as to the matters covered thereby.

     SECTION 4.  REPRESENTATION OF UNDERWRITERS.  The Representatives will act
as the representatives for the several Underwriters in connection with the
public offering of the Shares, and any action under or in respect of this
Agreement taken by the Representatives will be binding upon all of the
Underwriters.

     SECTION 5.  INFORMATION FURNISHED BY THE UNDERWRITERS.  The information set
forth in the last paragraph on the outside front cover page of the Prospectus
concerning the terms of the offering by the Underwriters, the paragraph on the
inside front cover page of the Prospectus relating to stabilization practices
and passive market making, and the concession and reallowance amounts appearing
under the caption "Underwriting" in the Prospectus constitute all of the
information furnished to the Company by and on behalf of the Underwriters for
use in connection with the preparation of the Registration Statement and the
Prospectus, as such information is referred to in this Agreement.

     SECTION 6.  PURCHASE, SALE AND DELIVERY OF SHARES.

          (a)  On the basis of the representations, warranties and agreements
     herein contained, and subject to the terms and conditions herein set forth,
     the Company agrees to sell to the Underwriters identified in Schedule II
     annexed hereto 1,500,000 Firm Shares, and each of the Underwriters agrees,
     severally and not jointly, to purchase from the Company the number of Firm
     Shares as hereinafter set forth at the price per share of $________.  The
     obligation of each Underwriter to the Company shall be to purchase from the
     Company that number of full Firm Shares which (as nearly as practicable in
     full shares as determined by the Representatives) bears the same proportion
     to the number of Firm Shares to be sold by the Company as the number of
     shares set forth opposite the name of such Underwriter in Schedule II
     annexed hereto bears to the total number of Firm Shares to be purchased by
     all of the Underwriters under this Agreement.

          (b)  On the basis of the representations, warranties and agreements
     herein contained, and subject to the terms and conditions herein set forth,
     the Selling Stockholder agrees, to sell to the Underwriters that number of
     full Firm Shares set forth opposite the name of the Selling Stockholder in
     Schedule I annexed hereto (a total of 1,500,000 shares), and each of the
     Underwriters agrees, severally and not jointly, to purchase from the
     Selling Stockholder the number of Firm Shares as hereinafter set forth at
     the same purchase price per share as stated in the preceding paragraph. The
     obligation of each Underwriter to the Selling Stockholder shall be to
     purchase from the Selling Stockholder that number of full Firm Shares which
     (as nearly as practicable in full shares as determined by the
     Representatives) bears the same proportion to the number of Firm Shares to
     be sold by the Selling Stockholder as the number of shares set forth
     opposite the name of such Underwriter in Schedule II annexed hereto bears
     to the total number of Firm Shares to be purchased by all of the
     Underwriters under this Agreement.

                                       -14-

<PAGE>

          (c)  On the First Closing Date (as hereinafter defined), the Company
     and the Custodian on behalf of the Selling Stockholder will deliver to the
     Representatives, at the offices of Cleary Gull Reiland & McDevitt Inc.,
     100 East Milwaukee Avenue, Milwaukee, WI 53202, or through the facilities
     of The Depository Trust Company, for the accounts of the several
     Underwriters, certificates representing the Firm Shares to be sold by them
     against payment of the purchase price therefor by wire transfer of
     immediately available funds to the accounts specified by the Company and
     the Selling Stockholder.  As referred to in this Agreement, the "First
     Closing Date" shall be on the third full business day after the date of the
     Prospectus, at 9:00 a.m., Milwaukee, Wisconsin time, or at such other date
     or time not later than ten full business days after the date of the
     Prospectus as the Representatives, the Company and the Selling Stockholder
     may agree.  The certificates for the Firm Shares to be so delivered will be
     in denominations and registered in such names as the Representatives
     request by notice to the Company and the Selling Stockholder, or either of
     them, prior to the First Closing Date, and such certificates will be made
     available for checking and packaging at 9:00 a.m., Milwaukee, Wisconsin
     time on the first full business day preceding the First Closing Date at a
     location to be designated by the Representatives.

          (d)  In addition, on the basis of the representations, warranties and
     agreements herein contained, and subject to the terms and conditions herein
     set forth, the Company and the Selling Stockholder hereby agree to sell to
     the Underwriters, and the Underwriters, severally and not jointly, shall
     have the right at any time within thirty days after the date of the
     Prospectus to purchase up to 225,000 Optional Shares from the Company and
     up to 225,000 Optional Shares from the Selling Stockholder at the purchase
     price per share to be paid for the Firm Shares, for use solely in covering
     any over-allotments made by the Underwriters in the sale and distribution
     of the Firm Shares. The option granted hereunder may be exercised upon
     notice by the Representatives to the Company and the Selling Stockholder,
     or either of them, within thirty days after the date of the Prospectus
     setting forth the aggregate number of Optional Shares to be purchased by
     the Underwriters and sold by the Company and the Selling Stockholder, the
     names and denominations in which the certificates for such shares are to be
     registered and the date and place at which such certificates will be
     delivered.  Such date of delivery (the "Second Closing Date") shall be
     determined by the Representatives, provided that the Second Closing Date,
     which may be the same as the First Closing Date, shall not be earlier than
     the First Closing Date and, if after the First Closing Date, shall not be
     earlier than three nor later than ten full business days after delivery of
     such notice to exercise.  The number of Optional Shares to be sold by the
     Company pursuant to such notice shall equal that number of full Optional
     Shares which (as nearly as practicable in full shares as determined by the
     Representatives) bears the same proportion to the number of Optional Shares
     to be purchased by the Underwriters as the number of Firm Shares to be sold
     by the Company under this Agreement bears to the total number of Firm
     Shares.  The number of Optional Shares to be sold by the Selling
     Stockholder pursuant to such notice shall equal that number of full
     Optional Shares which (as nearly as practicable in full shares as
     determined by the Representatives) bears the same proportion to the number
     of 

                                       -15-

<PAGE>


     Optional Shares to be purchased by the Underwriters as the number of
     Firm Shares to be sold by the Selling Stockholder bears to the total number
     of Firm Shares.  Certificates for the Optional Shares will be made
     available for checking and packaging at 9:00 a.m., Milwaukee, Wisconsin
     time, on the first full business day preceding the Second Closing Date at a
     location to be designated by the Representatives.  The manner of payment
     for and delivery of (including the denominations of and the names in which
     certificates are to be registered) the Optional Shares shall be the same as
     for the Firm Shares.

          (e)  The Representatives have advised the Company and the Selling
     Stockholder that each Underwriter has authorized the Representatives to
     accept delivery of the Shares and to make payment therefor.  It is
     understood that the Representatives, individually and not as
     representatives of the Underwriters, may (but shall not be obligated to)
     make payment for any Shares to be purchased by any Underwriter whose funds
     shall not have been received by the Representatives by the First Closing
     Date or the Second Closing Date, as the case may be, for the account of
     such Underwriter, but any such payment shall not relieve such Underwriter
     from any obligation under this Agreement.  As referred to in this
     Agreement, "Closing Date" shall mean either the First Closing Date or the
     Second Closing Date.

     SECTION 7.  COVENANTS OF THE COMPANY.  The Company covenants and agrees
with the several Underwriters that:

          (a)  If the effective time of the Registration Statement is not prior
     to the execution and delivery of this Agreement, the Company will use its
     best efforts to cause the Registration Statement to become effective at the
     earliest possible time and, upon notification from the Commission that the
     Registration Statement has become effective, will so advise the
     Representatives and counsel to the Underwriters promptly.  If the effective
     time of the Registration Statement is prior to the execution and delivery
     of this Agreement and any information shall have been omitted therefrom in
     reliance upon Rule 430A, the Company, at the earliest possible time, will
     furnish the Representatives with a copy of the Prospectus to be filed by
     the Company with the Commission to comply with Rule 424(b) and Rule 430A
     under the Act and, if the Representatives do not object to the contents
     thereof, will comply with such Rules.  Upon compliance with such Rules, the
     Company will so advise the Representatives promptly.  The Company will
     advise the Representatives and counsel to the Underwriters and the Selling
     Stockholder promptly of the issuance by the Commission or any state
     securities commission of any stop order suspending the effectiveness of the
     Registration Statement or of the institution of any proceedings for that
     purpose, or of any notification of the suspension of qualification of the
     Shares for sale in any jurisdiction or the initiation or threatening of any
     proceedings for that purpose, and will also advise the Representatives and
     counsel to the Underwriters and the Selling Stockholder promptly of any
     request of the Commission for amendment or supplement of the Registration
     Statement, of any Preliminary Prospectus or of the Prospectus, or for
     additional information, and the Company will not file any amendment or
     supplement to the Registration Statement (either before or after it becomes
     effective), 

                                       -16-

<PAGE>

     to any Preliminary Prospectus or to the Prospectus (including a prospectus
     filed pursuant to Rule 424(b)), or file any document under the Exchange 
     Act in the time period from the execution of this Agreement through the 
     First Closing Date with respect to the Firm Shares, or from the time of 
     notice by the Representatives exercising the option to purchase the
     Optional Shares through the Second Closing Date with respect to the
     Optional Shares, without first providing the Underwriters with a copy prior
     to such filing (with a reasonable opportunity to review such amendment or
     supplement) or if the Representatives object to such filing.

          (b)  If, at any time when a prospectus relating to the Shares is
     required by law to be delivered in connection with sales by an Underwriter
     or dealer, any event occurs as a result of which the Prospectus would
     include an untrue statement of a material fact, or would omit to state any
     material fact required to be stated therein or necessary to make the
     statements therein, in the light of the circumstances under which they were
     made, not misleading, or if it is necessary at any time to supplement the
     Prospectus to comply with the Act, the Company promptly will advise the
     Representatives and counsel to the Underwriters and the Selling Stockholder
     thereof and will promptly prepare and file with the Commission, at its
     expense, an amendment to the Registration Statement which will correct such
     statement or omission or an amendment which will effect such compliance;
     and, if any Underwriter is required to deliver a prospectus after the
     effective date of the Registration Statement, the Company, upon request of
     the Representatives, will prepare promptly such prospectus or prospectuses
     as may be necessary to permit compliance with the requirements of Section
     10(a)(3) of the Act. The Company consents to the use, in accordance with
     the provisions of the Act and with the Blue Sky Laws of the jurisdictions
     in which the Shares are offered by the several Underwriters and by dealers,
     of each Preliminary Prospectus.

          (c)  Neither the Company nor any Subsidiary will, prior to the Second
     Closing Date, if any, incur any liability or obligation, direct or
     contingent, or enter into any material transaction, other than in the
     ordinary course of business, or enter into any transaction with an
     "affiliate," as defined in Rule 405 under the Act, which is required to be
     described in the Prospectus pursuant to Item 404 of Regulation S-K under
     the Act, except as described in the Prospectus.

          (d)  Except with respect to Shares of Common Stock acquired in
     connection with a "cashless exercise" relating to any of the Company's
     stock option plans, neither the Company nor any Subsidiary will, prior to
     the Second Closing Date, if any, acquire any of the Common Stock nor,
     except for the Company's regular quarterly dividend paid int eh ordinary
     course of business, if any, will the Company declare or pay any dividend or
     make any other distribution upon its Common Stock payable to stockholders
     of record on a date prior to such earlier date, except as described in the
     Prospectus.

          (e)  The Company will make generally available to its security holders
     and the Representatives an earnings statement as soon as practicable, but
     in no event later than 

                                       -17-

<PAGE>

     sixty days after the end of its fiscal quarter in which the first 
     anniversary of the effective date of the Registration Statement occurs,
     covering a period of twelve consecutive calendar months beginning after
     the effective date of the Registration Statement, which will satisfy the
     provisions of the last paragraph of Section 11(a) of the Act and Rule 158
     promulgated thereunder.

          (f)  During such period as a prospectus is required by law to be
     delivered in connection with sales by an Underwriter or dealer, the Company
     will furnish to the Representatives, at the expense of the Company, copies
     of the Registration Statement, the Prospectus, any Preliminary Prospectus
     and all amendments and supplements to any such documents, including any
     document filed under the Exchange Act and deemed to be incorporated by
     reference in the Registration Statement, in each case as soon as available
     and in such quantities as the Representatives may reasonably request.

          (g)  The Company will apply the net proceeds from the sale of the
     Shares to be sold by it hereunder for the purposes set forth in the
     Prospectus.

          (h)  The Company will cooperate with the Representatives and counsel
     to the Underwriters in qualifying or registering the Shares for sale under
     the Blue Sky Laws of such jurisdictions as the Representatives designates,
     and will continue such qualifications or registrations in effect so long as
     reasonably requested by the Representatives to effect the distribution of
     the Shares.  The Company shall not be required to qualify as a foreign
     corporation or to file a general consent to service of process in any such
     jurisdiction where it is not presently qualified.  In each jurisdiction
     where any of the Shares shall have been qualified as provided above, the
     Company will file such reports and statements as may be required to
     continue such qualification for a period of not less than one year from the
     date of the Prospectus.  The Company shall promptly prepare and file with
     the Commission, from time to time, such reports as may be required to be
     filed by the Act and the Exchange Act, and the Company shall comply in all
     respects with the undertakings given by the Company in connection with the
     qualification or registration of the Shares for offering and sale under the
     Blue Sky Laws.

          (i)  During the period of three years from the date of the Prospectus,
     the Company will furnish to each of the Representatives and to each of the
     other Underwriters who may so request, as soon as available, each report,
     statement or other document of the Company or its Board of Directors mailed
     to its stockholders or filed with the Commission, and such other
     information concerning the Company as the Representatives may reasonably
     request.

          (j)  The Company shall deliver the requisite notice of issuance to
     Nasdaq and shall take all necessary or appropriate action within its power
     to maintain the authorization for trading of the Common Stock as a Nasdaq
     National Market security, or take such action to authorize the Common Stock
     for listing on the New York Stock Exchange or the American Stock Exchange,
     for a period of at least thirty-six months after the date of the

                                       -18-

<PAGE>


     Prospectus. 

          (k)  Except for (i) awards pursuant to the Mrs. Richardson Stock Award
     Program, (ii) the Company's contribution of shares of its Common Stock to
     the Company's ESOP or profit sharing plans, (iii) the issuance and sale by
     the Company of Common Stock upon exercise of presently existing outstanding
     stock options, (iv) the sale of the Shares to be sold by the Company
     pursuant to this Agreement, (v) the grant of employee stock options
     pursuant to the Company's stock option plan listed as Exhibits in the
     Company's most recent Annual Report on Form 10-K, copies of which are filed
     as exhibits to the Registration Statement or incorporated by reference, and
     provided that none of such options shall be exercisable during the 120-day
     period herein described and (vi) shares of Common Stock issued upon
     conversion of the Company's currently outstanding convertible debt, the
     Company shall not, for a period of 120 days after the date of the
     Prospectus, without the prior written consent of Cleary Gull, directly or
     indirectly, offer, sell or otherwise dispose of, contract to sell or
     otherwise dispose of, or cause or in any way permit to be sold or otherwise
     disposed of, any: (i) shares of Common Stock; (ii) rights to purchase
     shares of Common Stock; or (iii) securities that are convertible or
     exchangeable into shares of Common Stock.

          (l)  The Company will maintain a transfer agent and, if required by
     law or the rules of The Nasdaq Stock Market or any national securities
     exchange on which the Common Stock is listed, a registrar (which, if
     permitted by applicable laws and rules, may be the same entity as the
     transfer agent) for its Common Stock.  The Company shall, as soon as
     practicable after the date hereof, use its best efforts to obtain listing
     in Standard and Poor's Stock Guide, or such other recognized securities
     manuals for which it may qualify for listing, and the Company shall use its
     best efforts to maintain such listings for at least five years after the
     First Closing Date.

          (m)  If at any time when a prospectus relating to the Shares is
     required to be delivered under the Act, any rumor, publication or event
     relating to of affecting the Company shall occur as a result of which, in
     the opinion of Cleary Gull, the market price of the Common Stock has been
     or is likely to be materially affected (regardless of whether such rumor,
     publication or event necessitates a supplement to the Prospectus), the
     Company will, after written notice from Cleary Gull advising the Company of
     any of the matters set forth above, promptly consult with Cleary Gull
     concerning the advisability and substance of, and, if the Company and
     Cleary Gull jointly determine that it is appropriate, disseminate, a press
     release or other public statement responding to or commenting on, such
     rumor, publication or event.

          (n)  The Company will comply or cause to be complied with the
     conditions to the obligations of the Underwriters in section 10 hereof.

     SECTION 8.  COVENANTS OF THE SELLING STOCKHOLDER.  The Selling Stockholder
covenants and agrees with the several Underwriters and the Company as follows: 

                                       -19-

<PAGE>

          (a)  If the effective time of the Registration Statement is not prior
     to the execution and delivery of this Agreement, the Selling Stockholder
     will cooperate to the extent necessary to cause the Registration Statement
     to become effective at the earliest possible time; and the Selling
     Stockholder will do and perform all things to be done and performed by the
     Selling Stockholder prior to each Closing Date, pursuant to this Agreement
     or the Custody Agreement.

          (b)  The Selling Stockholder agrees to deliver to the Custodian on or
     prior to the First Closing Date a properly completed and executed United
     States Treasury Department Form W-9 (or other applicable substitute form or
     statement specified by Treasury Department regulations in lieu thereof).

          (c)  The Selling Stockholder will pay all federal and other taxes, if
     any, on the transfer or sale of the Shares being sold by the Selling
     Stockholder to the Underwriters.

          (d)  For a period of 120 days after the date of the Prospectus, the
     Selling Stockholder will not, without the prior written consent of Cleary
     Gull, directly or indirectly, offer, sell, transfer, or pledge, contract to
     sell, transfer or pledge or cause or in any way permit to be sold,
     transferred, pledged or otherwise disposed of any: (i) shares of Common
     Stock; (ii) rights to purchase shares of Common Stock (including, without
     limitation, shares of Common Stock that may be deemed to be beneficially
     owned by the Selling Stockholder in accordance with the rules and
     regulations of the Commission and shares of Common Stock that may be issued
     upon exercise of a stock option, warrant or other convertible security); or
     (iii) securities that are convertible or exchangeable into shares of Common
     Stock. For a period of one year after the date of the Prospectus, the
     Selling Stockholder will not, without the prior written consent of Cleary
     Gull, exercise or cause to be exercised, directly or indirectly, any rights
     to initiate the registration of Common Stock under the Act or Blue Sky
     Laws. 

          (e)  The Selling Stockholder will furnish any documents, instruments
     or other information which the Representatives may reasonably request in
     connection with the sale and transfer of the Shares to the Underwriters.

     SECTION 9.  PAYMENT OF EXPENSES.  Whether or not the transactions
contemplated hereunder are consummated or this Agreement becomes effective, or
if this Agreement is terminated for any reason, the Company will pay the costs,
fees and expenses incurred in connection with the public offering of the Shares.
Such costs, fees and expenses to be paid by the Company include, without
limitation:

          (a)  All costs, fees and expenses (excluding the expenses incurred by
     the Underwriters and the legal fees and disbursements of counsel for the
     Underwriters, but including such fees and disbursements described in
     subsection (b) of this section 9) incurred in connection with the
     performance of the Company's obligations hereunder, including without
     limiting the generality of the foregoing: the registration fees related to


                                       -20-

<PAGE>

     the filing of the Registration Statement with the Commission; the fees and
     expenses related to the quotation of the Shares on Nasdaq or other national
     securities exchange; the fees and expenses of the Company's counsel,
     accountants, transfer agent and registrar; the costs and expenses incurred
     in connection with the preparation, printing,. shipping and delivery of the
     Registration Statement, each Preliminary Prospectus and the Prospectus
     (including all exhibits and financial statements) and all agreements and
     supplements provided for herein, this Agreement and the Custody Agreement,
     including, without limitation, shipping expenses via overnight delivery
     and/or courier service to comply with applicable prospectus delivery
     requirements; and the costs and expenses associated with the production of
     materials related to, and travel expenses incurred by the management of the
     Company in connection with, the various meetings to be held between the
     Company's management and prospective investors.

          (b)  All registration fees and expenses, including legal fees and
     disbursements of counsel for the Underwriters incurred in connection with
     qualifying or registering all or any part of the Shares for offer and sale
     under the Blue Sky Laws and the clearing of the public offering and the
     underwriting arrangements evidenced hereby with the NASD.

          (c)  All fees and expenses related to printing of the certificates for
     the Shares, and all transfer taxes, if any, with respect to the sale and
     delivery of the Shares to the Underwriters.  Notwithstanding the foregoing,
     the Selling Stockholder shall be solely responsible for any transfer or
     sales tax imposed upon the transfer and sale of the Selling Stockholder's
     Shares to the Underwriters and for the Selling Stockholder's respective pro
     rata share of all fees and expenses of the Custodian.  All costs and
     expenses incident to the performance of the Selling Stockholder's
     obligations hereunder which are not otherwise specifically provided for in
     this section will be borne and paid solely by the Selling Stockholder.  In
     the event the Selling Stockholder shall fail to pay the Selling
     Stockholder's pro rata share of the costs, fees and expenses described in
     this section within five days after demand by the Representatives therefor,
     the Company shall be obligated to pay such costs, fees and expenses on
     demand.

     SECTION 10.  CONDITIONS TO THE OBLIGATIONS OF THE UNDERWRITERS.  The
obligations of the several Underwriters under this Agreement shall be subject to
the accuracy of the representations and warranties on the part of the Company
and the Selling Stockholder herein set forth as of the date hereof and as of
each Closing Date, to the accuracy of the statements of the Company's officers
and the Selling Stockholder made pursuant to the provisions hereof, to the
performance by the Company and the Selling Stockholder of their respective
obligations hereunder, and to the following additional conditions, unless waived
in writing by the Representatives:

          (a)  The Registration Statement shall have been declared effective by
     the Commission not later than 5:30 p.m., Washington, D.C. time, prior to
     the date on the date of this Agreement, or such later time as shall have
     been consented to by the Representatives, which consent shall be deemed to
     have been given if the Registration 


                                       -21-

<PAGE>

     Statement shall have been declared effective on or before the date and 
     time requested in the acceleration request submitted on behalf of the 
     Representatives pursuant to Rule 461 under the Act; all filings required
     by Rules 424(b) and 430A under the Act shall have been timely made; no 
     stop order suspending the effectiveness of the Registration Statement 
     shall have been issued by the Commission or any state securities 
     commission nor, to the knowledge of the Company, shall any proceedings
     for that purpose have been initiated or threatened; and any request of
     the Commission or any state securities commission for inclusion of 
     additional information in the Registration Statement, or otherwise,
     shall have been complied with to the satisfaction of the Representatives. 

          (b)  Since the dates as of which information is given in the
     Registration Statement:

               (i)  there shall not have occurred any change or development
          involving, or which could be expected to involve, a Material Adverse
          Effect, whether or not arising from transactions in the ordinary
          course of business; and

               (ii)  the Company shall not have sustained any loss or
          interference from any labor dispute, strike, fire, flood, windstorm,
          accident or other calamity (whether or not insured) or from any court
          or governmental action, order or decree,

     the effect of which on the Company, in any such case described in clause
     (i) or (ii) above, is in the opinion of the Representatives so material and
     adverse as to make it impracticable or inadvisable to proceed with the
     public offering or the delivery of the Shares on the terms and in the
     manner contemplated in the Registration Statement and the Prospectus.

          (c)  The Representatives shall not have advised the Company that the
     Registration Statement or the Prospectus contains an untrue statement of
     fact that, in the opinion of the Representatives or counsel for the
     Underwriters, is material, or omits to state a fact that, in the opinion of
     the Representatives or such counsel, is material and is required to be
     stated therein or necessary to make the statements therein not misleading.

          (d)  The Representatives shall have received an opinion of Ross &
     Hardies, counsel for the Company addressed to the Representatives, as the
     representatives of the Underwriters, and dated the First Closing Date or
     the Second Closing Date, as the case may be, to the effect that:

               (i)  The Company has been duly incorporated and is validly
          existing as a corporation and in good standing under the laws of its
          jurisdiction of incorporation, with full corporate power and authority
          to own, lease and operate its properties and conduct its business as
          presently conducted and as described in the Prospectus and the
          Registration Statement; the Company is duly registered and qualified
          to do business as a foreign corporation under the laws of, and is in
          good 


                                       -22-

<PAGE>

          standing as such in, each jurisdiction in which such registration
          or qualification is required, except where the failure to so register
          or qualify would not have a Material Adverse Effect;

               (ii)  The authorized capital stock of the Company consists of
          30,000,000 shares of Common Stock, par value $.05 per share,
          10,000,000 shares of Class B Common Stock, par value $.05, and
          5,000,000 shares of Preferred Stock, par value $1.00 per share, and
          all such stock conforms as to legal matters to the descriptions
          thereof in the Prospectus and the Registration Statement;

               (iii)  The issued and outstanding shares of capital stock of the
          Company immediately prior to the issuance and sale of the Shares to be
          sold by the Company hereunder have been duly authorized and validly
          issued, are fully paid and nonassessable, and there are no preemptive,
          preferential or, except as described in the Prospectus, other rights
          to subscribe for or purchase any shares of capital stock of the
          Company, and, to such counsel's knowledge, no shares of capital stock
          of the Company have been issued in violation of such rights;

               (iv)  To such counsel's knowledge, except for the Subsidiaries,
          the Company has no subsidiaries, and the Company does not own any
          equity interest in or control, directly or indirectly, any other
          corporation, limited liability company, partnership, joint venture,
          association, trust or other business organization except as described
          in the Prospectus, the Registration Statement and  Schedule 2(c)
          hereto; each Subsidiary has been duly incorporated and is validly
          existing as a corporation in good standing under the laws of its
          jurisdiction of incorporation, with full corporate power and authority
          to own, lease and operate its properties and to conduct its business
          as presently conducted and as described in the Prospectus and the
          Registration Statement; each Subsidiary is duly registered or
          qualified to do business as a foreign corporation under the laws of,
          and is in good standing as such in, each jurisdiction in which such
          registration or qualification is required, except where the failure to
          so register or qualify would not have a Material Adverse Effect; the
          issued and outstanding shares of the capital stock of each Subsidiary
          have been duly authorized and validly issued, are fully paid and
          nonassessable and there are no preemptive, preferential or, to such
          counsel's knowledge, other rights to subscribe for or purchase any
          shares of capital stock of any Subsidiary, and to such counsel's
          knowledge, no shares of capital stock of any Subsidiary have been
          issued in violation of such rights; the Company owns directly and, to
          such counsel's knowledge, beneficially all of the issued and
          outstanding capital stock of each Subsidiary, free and clear of any
          and all liens, claims, encumbrances and security interests;

               (v)  The certificates for the Shares to be delivered hereunder
          are in due and proper form and conform to the requirements of
          applicable law; and when duly countersigned by the Company's transfer
          agent, and delivered to the 

                                      -23-

<PAGE>

          Representatives or upon the order of the Representatives against 
          payment of the agreed consideration therefor in accordance with the
          provisions of this Agreement, the Shares to be sold by the Company 
          represented thereby will be duly authorized and validly issued, 
          fully paid and nonassessable, and free of any preemptive, preferential
          or other rights to subscribe for or purchase shares of Common Stock;

               (vi)  The Registration Statement has become effective under the
          Act, and to such counsel's knowledge, no stop order suspending the
          effectiveness of the Registration Statement has been issued and no
          proceedings for that purpose have been initiated or are threatened
          under the Act or any Blue Sky Laws; the Registration Statement and the
          Prospectus and any amendment or supplement thereto, including any
          document incorporated by reference in the Registration Statement,
          (except for the financial statements and other statistical or
          financial data included therein as to which such counsel need express
          no opinion) comply as to form in all material respects with the
          requirements of the Act; the conditions for use of Form S-2, set forth
          in the General Instructions thereto, have been satisfied; no facts
          have come to the attention of such counsel which lead it to believe
          that either the Registration Statement or the Prospectus or any
          amendment or supplement thereto, including any document incorporated
          by reference in the Registration Statement, contains any untrue
          statement of a material fact or omitted or will omit to state a
          material fact required to be stated therein or necessary to make the
          statements therein not misleading or that the Prospectus, as of the
          First Closing Date or the Second Closing Date, as the case may be,
          contained any untrue statement of a material fact or omitted or will
          omit to state a material fact required to be stated therein or
          necessary to make the statements therein not misleading in light of
          the circumstances under which they were made (except for the financial
          statements and other financial data included therein as to which such
          counsel need express no opinion); to such counsel's knowledge, there
          are no legal or governmental proceedings pending or threatened,
          including, without limitation, any such proceedings that are related
          to environmental or employment discrimination matters, required to be
          described in the Registration Statement or the Prospectus which are
          not so described or which question the validity of this Agreement or
          any action taken or to be taken pursuant thereto, nor is there any
          transaction, relationship, agreement, contract or other document of a
          character required to be described in the Registration Statement or
          the Prospectus or to be filed as an exhibit to or incorporated by
          reference in the Registration Statement by the Act, which is not
          described, filed or incorporated by reference as required;

               (vii)  The Company has full corporate power and authority to
          enter into and perform this Agreement; the performance of the
          Company's obligations hereunder and the consummation of the
          transactions described herein have been duly authorized by the Company
          by all necessary corporate action and this Agreement has been duly
          executed and delivered by and on behalf of the Company, and is a
          legal, valid and binding agreement of the Company enforceable 

                                       -24-

<PAGE>

          against the Company in accordance with its terms, except that rights 
          to indemnity or contribution may be limited by applicable law and 
          except as enforceability of this Agreement may be limited by 
          bankruptcy, insolvency, reorganization, moratorium or similar laws 
          affecting creditors' rights generally, and by equitable principles 
          limiting the right to specific performance or other equitable relief;
          no consent, approval, authorization or other order or decree of any 
          court, regulatory or governmental body, arbitrator, administrative 
          agency or other instrumentality of the United States or other country
          or jurisdiction having jurisdiction over the Company is required for
          the execution and delivery of this Agreement or the consummation of 
          the transactions contemplated by this Agreement (except for compliance
          with the Act, the Exchange Act, applicable Blue Sky Laws and the
          clearance of the underwriting arrangements by the NASD);

               (viii)  The execution, delivery and performance of this Agreement
          by the Company will not: (A) violate any provisions of the Articles of
          Incorporation or By-laws of the Company or any Subsidiary; (B) to such
          counsel's knowledge, violate any provisions of, or result in the
          breach, modification or termination of, or constitute a default under,
          any agreement, lease, franchise, license, indenture, permit, mortgage,
          deed of trust, other evidence of indebtedness or other instrument to
          which the Company or any Subsidiary is a party or by which the Company
          or such Subsidiary, or any of their respective owned or leased
          property is bound, and which is filed or incorporated by reference as
          an exhibit to the Registration Statement; or (C) violate any statute,
          ordinance, rule, or regulation of any regulatory or governmental body,
          or to such counsel's knowledge, any order or decree of any court,
          arbitrator, administrative agency or other instrumentality of the
          United States or other country or jurisdiction having jurisdiction
          over the Company or any Subsidiary (assuming compliance with all
          applicable federal and state securities laws);

               (ix)  To such counsel's knowledge, except as described in the
          Prospectus, there are no holders of Common Stock or other securities
          of the Company, or securities that are convertible or exchangeable
          into Common Stock or other securities of the Company, that have rights
          to the registration of such securities under the Act or any Blue Sky
          Laws;

               (x)  The Common Stock has been designated for inclusion as a
          National Market security on The Nasdaq Stock Market and is registered
          under the Exchange Act;

               (xi)  Neither the Company nor any Subsidiary is, nor with the
          giving of notice or passage of time or both would be, in violation of
          its respective Articles of Incorporation or By-laws or, to such
          counsel's knowledge, in default in any material respect in the
          performance of any agreement, lease, franchise, license, permit,
          mortgage, deed of trust, evidence of indebtedness or other instrument,
          or 


                                       -25-

<PAGE>

          any other document that is filed as an exhibit to or incorporated
          by reference in the Registration Statement, to which the Company or
          any Subsidiary is subject or bound;

               (xii)  Neither the Company nor any Subsidiary is an "investment
          company", an "affiliated person" of, or "promoter" or "principal
          underwriter" for, an "investment company", as such terms are defined
          in the Investment Company Act of 1940, as amended, and, upon its
          receipt of any proceeds from the sale of the Shares, the Company will
          not become or be deemed to be an "investment company" thereunder;

               (xiii)  The description or incorporation by reference in the
          Registration Statement and the Prospectus of statutes, law,
          regulations, legal and governmental proceedings, and contracts and
          other legal documents described or incorporated by reference therein
          fairly and correctly present, in all material respects, the
          information required to be included therein by the Act; and

               (xiv)  All offers and sales by the Company of its capital stock
          before the date hereof were at all relevant times duly registered
          under or exempt from the registration requirements of the Act, and
          were duly registered under or the subject of an available exemption
          from the registration requirements of any applicable Blue Sky Laws.

     In rendering such opinion, counsel for the Company may rely, to the extent
counsel deems such reliance proper, as to matters of fact upon certificates of
officers of the Company and of governmental officials, and copies of all such
certificates shall be furnished to the Representatives and for the Underwriters
on or before each Closing Date.  Such opinion may incorporate reasonable
exclusions and qualifications.

          (e)  The Representatives shall have received an opinion from Ross &
     Hardies, counsel for the Selling Stockholder, dated the First Closing Date
     or the Second Closing Date, as the case may be, to the effect that:

               (i)  Each of this Agreement and the Custody Agreement has been
          duly authorized, executed and delivered by or on behalf of the Selling
          Stockholder and such agreement constitutes the valid and binding
          agreement of the Selling Stockholder, enforceable in accordance with
          its respective terms, except that rights to indemnity or contribution
          thereunder may be limited by applicable law and except as
          enforceability of such agreement may be limited by bankruptcy,
          insolvency, reorganization, moratorium or similar laws generally
          affecting the rights of creditors and by equitable principles limiting
          the right to specific performance or other equitable relief;

               (ii)  The execution and delivery of this Agreement and the
          Custody 

                                       -26-

<PAGE>

          Agreement and the consummation of the transactions herein and
          therein contemplated will not, if applicable, result in the violation
          of any provisions of the Articles of Incorporation, By-laws or other
          governing documents of the Selling Stockholder, or constitute a
          breach, or to such counsel's knowledge, be in contravention, of any
          provision of any agreement, franchise, license, indenture, mortgage,
          deed of trust or other instrument to which the Selling Stockholder is
          a party or by which the Selling Stockholder or the Selling
          Stockholder's property may be bound or affected, or any statute, rule
          or regulation applicable to the Selling Stockholder, or to such
          counsel's knowledge, violate any order or decree of any court,
          regulatory or governmental body, administrative body or
          instrumentality of the United States or other jurisdiction having
          jurisdiction over the Selling Stockholder or any of the Selling
          Stockholder's property, which violation would reasonably be expected
          to have a material adverse effect on the condition (financial or
          otherwise), business, properties, net worth or results of operations
          of the Selling Stockholder;

               (iii)  To such counsel's knowledge, the Selling Stockholder has
          full legal right, power and authority, and has secured any consent,
          approval, authorization and order required to enter into and perform
          this Agreement and the Custody Agreement and to sell, assign, transfer
          and deliver title to the Shares to be sold by the Selling Stockholder
          as provided herein; and upon delivery to the Underwriters or upon the
          order of the Representatives against payment of the agreed
          consideration therefor in accordance with the provisions of this
          Agreement, to such counsel's knowledge, the Underwriters will acquire
          good and marketable title to the Shares to be sold hereunder by the
          Selling Stockholder, free and clear of all voting trust arrangements,
          liens, encumbrances, security interests, equities, claims and
          community or marital property rights; and

               (iv)  To such counsel's knowledge, the information concerning the
          Selling Stockholders contained in the Prospectus under the caption
          "Principal and Selling Stockholders" complies in all material respects
          with the Act.

     In rendering such opinion, counsel for the Selling Stockholder may rely, to
the extent counsel deems such reliance proper, as to matters of fact upon
certificates of the Selling Stockholder, and copies of all such certificates
shall be furnished to the Representatives and counsel for the Underwriters on or
before each Closing Date.  Such opinion may incorporate reasonable exclusions
and qualifications.

          (f)  The Representatives shall have received an opinion of McDermott,
     Will & Emery, counsel for the Underwriters, dated the First Closing Date or
     the Second Closing Date, as the case may be, with respect to the issuance
     and sale of the Shares by the Company, the Registration Statement and other
     related matters as the Representatives may require, and the Company shall
     have furnished to such counsel such documents and shall have exhibited to
     them such papers and records as they request for the purpose of 

                                       -27-

<PAGE>

     enabling them to pass upon such matters.

          (g)  The Representatives shall have received on each Closing Date, a
     certificate of Edward J. Richardson, Chairman and Chief Executive Officer,
     and Bruce W. Johnson, President and Chief Operating Officer, of the
     Company, to the effect that:

               (i)  The representations and warranties of the Company set forth
          in section 2 hereof are true and correct as of the date of this
          Agreement and as of the date of such certificate, and the Company has
          complied with all the agreements and satisfied all the conditions to
          be performed or satisfied by it at or prior to the date of such
          certificate;

               (ii)  The Commission has not issued an order preventing or
          suspending the use of the Prospectus or any Preliminary Prospectus or
          any amendment or supplement thereto; no stop order suspending the
          effectiveness of the Registration Statement has been issued; and to
          the knowledge of the respective signatories, no proceedings for that
          purpose have been initiated or are pending or contemplated under the
          Act or under the Blue Sky Laws of any jurisdiction;

               (iii)  Each of the respective signatories has carefully examined
          the Registration Statement and the Prospectus, and any amendment or
          supplement thereto, including any documents filed under the Exchange
          Act and deemed to be incorporated by reference in the Registration
          Statement, and such documents contain all statements required to be
          stated therein, and do not include any untrue statement of a material
          fact or omit to state any material fact required to be stated therein
          or necessary to make the statements therein not misleading, and since
          the date on which the Registration Statement was initially filed, no
          event has occurred that was required to be set forth in an amended or
          supplemented prospectus or in an amendment to the Registration
          Statement that has not been so set forth; and

               (iv)  Since the date on which the Registration Statement was
          initially filed with the Commission, there shall not have occurred any
          change or development involving, or which could be expected to
          involve, a Material Adverse Effect, whether or not arising from
          transactions in the ordinary course of business, except as disclosed
          in the Prospectus and the Registration Statement as heretofore amended
          or (but only if the Representatives expressly consent thereto in
          writing) as disclosed in an amendment or supplement thereto filed with
          the Commission and delivered to the Representatives after the
          execution of this Agreement; since such date and except as so
          disclosed or in the ordinary course of business, the Company has not
          incurred any liability or obligation, direct or indirect, or entered
          into any transaction which is material to the Company; since such date
          and except as so disclosed, there has not been any change in the
          outstanding capital stock of the Company, or any change that is
          material to the Company in the short-term debt or long-term debt of
          the Company; since such date and except as so disclosed 

                                       -28-

<PAGE>

          or as contemplated in this Agreement, the Company has not acquired any
          of the Common Stock or other capital stock of the Company nor has the
          Company declared or paid any dividend, or made any other distribution,
          upon its outstanding Common Stock payable to stockholders of record on
          a date prior to such Closing Date; since such date and except as so
          disclosed, the Company has not incurred any material contingent
          obligations, and no material litigation is pending or threatened
          against the Company; and, since such date and except as so disclosed,
          the Company has not sustained any material loss or interference from
          any strike, fire, flood, windstorm, accident or other calamity
          (whether or not insured) or from any court or governmental action,
          order or decree.

     The delivery of the certificate provided for in this subsection (g) shall
be and constitute a representation and warranty of the Company as to the facts
required in the immediately foregoing clauses (i), (ii), (iii) and (iv) to be
set forth in said certificate.

          (h)  The Representatives shall have received a certificate from the
     Selling Stockholder, dated the First Closing Date or the Second Closing
     Date, as the case may be, to the effect that: (i) the representations and
     warranties of the Selling Stockholder in Section 3 of this Agreement are
     true and correct as of the date of this Agreement and as of the date of
     such certificate, as if again made on and as of such Closing Date, and the
     Selling Stockholder has complied with all of the agreements and satisfied
     all of the conditions to be performed or satisfied by the Selling
     Stockholder at or prior to such Closing Date; and (ii) the Selling
     Stockholder has no reason to believe that the Registration Statement or any
     amendment thereto, including any documents filed under the Exchange Act and
     deemed to be incorporated by reference in the Registration Statement, at
     the time it was declared effective by the Commission contained any untrue
     statement of a material fact or omitted to state any material fact required
     to be stated therein or necessary to make the statements therein not
     misleading, or that the Prospectus, as amended or supplemented, including
     any documents filed under the Exchange Act and deemed to be incorporated by
     reference in the Registration Statement, contains any untrue statement of a
     material fact or omits to state a material fact necessary to make the
     statements therein, in the light of the circumstances under which they were
     made, not misleading.

          (i)  At the time this Agreement is executed and also on each Closing
     Date, there shall be delivered to the Representatives a letter addressed to
     the Representatives, as the representatives of the Underwriters, from Ernst
     & Young LLP, the Company's independent accountants, the first letter to be
     dated the date of this Agreement, the second letter to be dated the First
     Closing Date and the third letter (if applicable) to be dated the Second
     Closing Date, which shall be in form and substance satisfactory to the
     Representatives and shall contain information as of a date within five days
     of the date of such letter.  There shall not have been any change or
     decrease set forth in any of the letters referred to in this subsection (i)
     which makes it impracticable or inadvisable in the judgment of the
     Representatives to proceed with the public offering or purchase of the

                                       -29-

<PAGE>

     Shares as contemplated hereby. 

          (j)  The Shares shall have been qualified or registered for sale under
     the Blue Sky Laws of such jurisdictions as shall have been specified by the
     Representatives, the underwriting terms and arrangements for the offering
     shall have been cleared by the NASD, and the Common Stock shall have been
     designated for inclusion as a Nasdaq National Market security on the Nasdaq
     Stock Market and shall have been registered under the Exchange Act.

          (l)  Such further certificates and documents as the Representatives
     may reasonably request (including certificates of officers of the Company).

     All such opinions, certificates, letters and documents shall be in
compliance with the provisions hereof only if they are satisfactory to the
Representatives and to McDermott, Will & Emery, counsel for the Underwriters. 
The Company and the Selling Stockholder shall furnish the Representatives with
such manually signed or conformed copies of such opinions, certificates, letters
and documents as the Representatives may reasonably request.

     If any condition to the Underwriters' obligations hereunder to be satisfied
prior to or at either Closing Date is not so satisfied, this Agreement at the
election of the Representatives will terminate upon notification to the Company
and the Selling Stockholder, or any one of them, without liability on the part
of any Underwriter, including the Representatives, the Company or the Selling
Stockholder except for the provisions of section 7(n) hereof, the expenses to be
paid by the Company and the Selling Stockholder pursuant to section 9 hereof and
except to the extent provided in section 12 hereof.

     SECTION 11.  MAINTAIN EFFECTIVENESS OF REGISTRATION STATEMENT.  The Company
will use its best efforts and the Selling Stockholder will use his best efforts
to prevent the issuance of any stop order suspending the effectiveness of the
Registration Statement, and, if such stop order is issued, to obtain as soon as
possible the lifting thereof.

     SECTION 12.  INDEMNIFICATION.

          (a)  The Company and the Selling Stockholder, jointly and severally,
     subject to  the last paragraph of this Section 12, agree to indemnify and
     hold harmless each Underwriter and each person, if any, who controls any
     Underwriter within the meaning of the Act or the Exchange Act, from and
     against any losses, claims, damages, expenses, liabilities or actions in
     respect thereof ("Claims"), joint or several, to which such Underwriter or
     each such controlling  person may become subject under the Act, the
     Exchange Act, Blue Sky Laws or other federal or state statutory laws or
     regulations, at common law or otherwise (including payments made in
     settlement of any litigation), insofar as such Claims arise out of or are
     based upon any breach of any representation, warranty or covenant made by
     the Company in this Agreement, or any untrue statement or alleged untrue
     statement of any material fact contained in the Registration Statement, 


                                       -30-

<PAGE>
     
     any Preliminary Prospectus, the Prospectus or any amendment or supplement
     thereto, or in any application filed under any Blue Sky Law  or other
     document executed by the Company for that purpose or based upon written
     information  furnished by the Company and filed in any state or other
     jurisdiction to qualify any or all of the  Shares under the securities laws
     thereof (any such document, application or information being  hereinafter
     called a "Blue Sky Application") or arise out of or are based upon the
     omission or  alleged omission to state therein a material fact required to
     be stated therein or necessary to  make the statements therein not
     misleading.  The Company and the Selling Stockholder, jointly and
     severally, subject to the last paragraph of this Section 12, agree to
     reimburse each Underwriter and each such controlling person for any legal
     fees or other expenses incurred by such Underwriter or any such controlling
     person in connection with investigating or defending any such Claim;
     provided, however, that the Company and the Selling Stockholder will not be
     liable in any such case to the extent that: (i) any such Claim arises out
     of or is based upon an untrue statement or alleged untrue statement or
     omission  or alleged omission made in the Registration Statement, any
     Preliminary Prospectus, the Prospectus or supplement thereto or in any Blue
     Sky Application in reliance upon and in conformity with the written
     information furnished to the Company pursuant to section 5 of this 
     Agreement or (ii) such statement or omission was contained or made in any
     Preliminary Prospectus and corrected in the Prospectus and (1) any such
     Claim suffered or incurred by any Underwriter (or any person who controls
     any Underwriter) resulted from an action, claim or suit by any person who
     purchased Shares which are the subject thereof from such Underwriter in the
     offering, and (2) such Underwriter failed to deliver or provide a copy of
     the Prospectus to such person at or prior to the confirmation of the sale
     of such Shares, unless such failure was due to failure by the Company to
     provide copies of the Prospectus to the Underwriters as required by this
     Agreement.  The indemnification obligations of the Company and the Selling
     Stockholder as provided above are in addition to and in no way limit any
     liabilities the Company and the Selling Stockholder may otherwise have.

          (b)  The Selling Stockholder, agrees to indemnify and hold harmless
     each Underwriter and each controlling person from and against any Claims to
     which such Underwriter or each such controlling person may become subject
     under the Act, the Exchange Act, Blue Sky laws or other federal or state
     statutory laws or regulations, at common law or otherwise (including
     payments made in settlement of any litigation), insofar as such Claims
     arise out of or are based upon any breach of any representations, warranty
     or covenant made by the Selling Stockholder in this Agreement.

          (c)  Each Underwriter, severally and not jointly, will indemnify and
     hold harmless the Company, each of its directors and each of its officers
     who signs the Registration Statement, and each person, if any, who controls
     the Company within the meaning of the Act or the Exchange Act and the
     Selling Stockholder against any Claim to which the Company, or any such
     director, officer, controlling person or Selling Stockholder may become
     subject under the Act, the Exchange Act, Blue Sky Laws or other federal or
     state statutory laws or regulations, at common law or otherwise (including
     payments made in 


                                       -31-

<PAGE>

     settlement of any litigation, if such settlement is effected with the 
     written consent of such Underwriter and Cleary Gull), insofar as such 
     Claim arises out of or is based upon any untrue or alleged untrue statement
     of any material fact contained in the Registration Statement, any 
     Preliminary Prospectus, the Prospectus, or any amendment or supplement 
     thereto, or in any Blue Sky Application, or arises out of or is based 
     upon the omission or alleged omission to state therein a material
     fact required to be stated therein or necessary to make the statements
     therein not misleading, in each case to the extent, but only to the extent,
     that such untrue statement or alleged untrue statement or omission or
     alleged omission was made in the Registration Statement, any Preliminary
     Prospectus, the Prospectus, or any amendment or supplement thereto, or in
     any Blue Sky Application, in reliance solely upon and in conformity with
     the written information furnished by the Representatives to the Company
     pursuant to section 5 of this Agreement.  Each Underwriter will severally
     reimburse any legal fees or other expenses incurred by the Company, or any
     such director, officer, controlling person or Selling Stockholder in
     connection with investigating or defending any such Claim, and from any and
     all Claims solely resulting from failure of an Underwriter to deliver a
     Prospectus, if the person asserting such Claim purchased Shares from such
     Underwriter and a copy of the Prospectus (as then amended if the Company
     shall have furnished any amendments thereto) was not sent or given by or on
     behalf of such Underwriter to such person, at or prior to the written
     confirmation of the sale of the Shares to such person, and if the
     Prospectus (as so amended) would have cured the defect giving rise to such
     Claim.  The indemnification obligations of each Underwriter as provided
     above are in addition to any liabilities any such Underwriter may otherwise
     have.  Notwithstanding the provisions of this section, no Underwriter shall
     be required to indemnify or reimburse the Company, or any officer,
     director, controlling person or the Selling Stockholder in an aggregate
     amount in excess of the total price at which the Shares purchased by any
     such Underwriter hereunder were offered to the public, less the amount of
     any damages such Underwriter has otherwise been required to pay by reason
     of such untrue or alleged untrue statement or omission or alleged omission.

          (d)  The Selling Stockholder agrees to indemnify and hold harmless the
     Company, each of its directors and each of its officers who signs the
     Registration Statement, and each person, if any, controlling the Company
     within the meaning of the Act or the Exchange Act to the same extent as the
     foregoing indemnity from the Company to each Underwriter set forth in
     subsection (a) of this section.  In case any Claim shall be brought or
     asserted against the Company, its directors, such officers or any such
     controlling person, in respect of which indemnity may be sought against the
     Selling Stockholder, the Selling Stockholder shall have the rights and
     duties given to the Company, and the Company, such directors or officers
     and any such controlling person shall have the rights and duties given to
     the Underwriters by subsection (a) of this section.

          (e)  Promptly after receipt by an indemnified party under this section
     of notice of the commencement of any action in respect of a Claim, such
     indemnified party will, if a Claim in respect thereof is to be made against
     an indemnifying party under this section, 


                                       -32-

<PAGE>

     notify the indemnifying party in writing of the commencement thereof,
     but the omission so to notify the indemnifying party will not relieve
     an indemnifying party from any liability it may have to any indemnified
     party under this section or otherwise, except to the extent that the 
     failure to so notify the indemnifying party causes such party prejudice.
     In case any such action is brought against any indemnified party, and such
     indemnified party notifies an indemnifying party of the commencement 
     thereof, the indemnifying party will be entitled to participate in and, to
     the extent that he, she or it may wish, jointly with all other indemnifying
     parties, similarly notified, to assume the defense thereof, with counsel 
     reasonably satisfactory to such indemnified party; provided, however, if 
     the defendants in any such action include both the indemnified party and 
     any indemnifying party and the indemnified party shall have reasonably 
     concluded that there may be legal defenses available to the indemnified 
     party and/or other indemnified parties which are different from or 
     additional to those available to any indemnifying party, the indemnified
     party or parties shall have the right to select separate counsel to 
     assume such legal defenses and to otherwise participate in the defense
     of such action on behalf of such indemnified party or parties.

          (f)  Upon receipt of notice from the indemnifying party to such
     indemnified party of the indemnifying party's election to assume the
     defense of such action and upon approval by the indemnified party of
     counsel selected by the indemnifying party, the indemnifying party will not
     be liable to such indemnified party under this section for any legal fees
     or other expenses subsequently incurred by such indemnified party in
     connection with the defense thereof, unless:

               (i)  the indemnified party shall have employed separate counsel
          in connection with the assumption of legal defenses in accordance with
          the proviso to the last sentence of subsection (e) of this section (it
          being understood, however, that the indemnifying party shall not be
          liable for the legal fees and expenses of more than one separate
          counsel, approved by Cleary Gull, if one or more of the Underwriters
          or their controlling persons are the indemnified parties);

               (ii)  the indemnifying party shall not have employed counsel
          reasonably satisfactory to the indemnified party to represent the
          indemnified party within a reasonable time after the indemnified
          party's notice to the indemnifying party of commencement of the
          action; or

               (iii)  the indemnifying party has authorized the employment of
          counsel at the expense of the indemnifying party.

          (g)  If the indemnification provided for in this section is
     unavailable to an indemnified party under subsection (a), (b), (c) or (d)
     hereof in respect of any Claim referred to therein, then each indemnifying
     party, in lieu of indemnifying such indemnified party, shall, subject to
     the limitations hereinafter set forth, contribute to the amount paid or
     payable by such indemnified party as a result of such Claim:

                                       -33-

<PAGE>
               (i)  in such proportion as is appropriate to reflect the relative
          benefits received by the Company, the Selling Stockholder and the
          Underwriters from the offering of the Shares; or

               (ii)  if the allocation provided by clause (i) above is not
          permitted by applicable law, in such proportion as is appropriate to
          reflect not only the relative benefits referred to in clause (i)
          above, but also the relative fault of the Company, the Selling
          Stockholder and the Underwriters in connection with the statements or
          omissions which resulted in such Claim, as well as any other relevant
          equitable considerations.

     The relative benefits received by each of the Company, the Selling
Stockholder and the Underwriters shall be deemed to be in such proportion so
that the Underwriters are responsible for that portion represented by the
percentage that the amount of the underwriting discounts and commissions per
share appearing on the cover page of the Prospectus bears to the public offering
price per share appearing thereon, and the Company, and the Selling Stockholder,
are responsible for the remaining portion.  The relative fault of the Company,
the Selling Stockholder and the Underwriters shall be determined by reference
to, among other things, whether the untrue or alleged untrue statement of a
material fact or the omission or alleged omission to state a material fact
relates to information supplied by the Company, the Selling Stockholder, or the
Underwriters and the parties' relative intent, knowledge, access to information
and opportunity to correct or prevent such statement or omission.  The amount
paid or payable by a party as a result of the Claims referred to above shall be
deemed to include, subject to the limitations set forth in subsections (e) and
(f) of this section, any legal or other fees or expenses reasonably incurred by
such party in connection with investigating or defending any action or claim.

          (h)  The Company, the Selling Stockholder and the Underwriters agree
     that it would not be just and equitable if contribution pursuant to this
     section were determined by pro rata or per capita allocation (even if the
     Underwriters were treated as one entity for such purpose) or by any other
     method or allocation which does not take into account the equitable
     considerations referred to in subsection (f) of this section.
     Notwithstanding the other provisions of this section, no Underwriter shall
     be required to contribute any amount that is greater than the amount by
     which the total price at which the Shares underwritten by it and
     distributed to the public were offered to the public exceeds the amount of
     any damages which such Underwriter has otherwise been required to pay by
     reason of such untrue or alleged untrue statement or omission or alleged
     omission.  No person guilty of fraudulent misrepresentation (within the
     meaning of section 11(f) of the Act) shall be entitled to contribution from
     any person who was not guilty of such fraudulent misrepresentation.  The
     Underwriters' obligations to contribute pursuant to this section are
     several in proportion to their respective underwriting commitments and not
     joint.

          (i)  Notwithstanding any provision of this section 12 to the contrary,
     the liability of the Selling Stockholder arising under this section 12
     shall not exceed the purchase price 

                                       -34-

<PAGE>

     received by the Selling Stockholder from the Underwriters for the Shares 
     sold by the Selling Stockholder.

     SECTION 13.  DEFAULT OF UNDERWRITERS.  It shall be a condition to the
obligations of each Underwriter to purchase the Shares in the manner as
described herein, that, except as hereinafter provided in this section, each of
the Underwriters shall purchase and pay for all the Shares agreed to be
purchased by such Underwriter hereunder upon tender to the Representatives of
all such Shares in accordance with the terms hereof.  If any Underwriter or
Underwriters default in their obligations to purchase Shares hereunder on either
the First Closing Date or the Second Closing Date and the aggregate number of
Shares which such defaulting Underwriter or Underwriters agreed but failed to
purchase does not exceed ten percent (10%) of the total number of Shares which
the Underwriters are obligated to purchase on such Closing Date, the
Representatives may make arrangements for the purchase of such Shares by other
persons, including any of the Underwriters, but if no such arrangements are made
by such Closing Date the nondefaulting Underwriters shall be obligated
severally, in proportion to their respective commitments hereunder, to purchase
the Shares which such defaulting Underwriters agreed but failed to purchase on
such Closing Date.  If any Underwriter or Underwriters so default and the
aggregate number of Shares with respect to which such default or defaults occur
is greater than ten percent (10%) of the total number of Shares which the
Underwriters are obligated to purchase on such Closing Date, and arrangements
satisfactory to the Representatives for the purchase of such Shares by other
persons are not made within thirty-six hours after such default, this Agreement
will terminate without liability on the part of any nondefaulting Underwriter,
the Company, and the Selling Stockholder except to the extent provided in
section 12 hereof.

     In the event that Shares to which a default relates are to be purchased by
the nondefaulting Underwriters or by another party or parties, the
Representatives shall have the right to postpone the First Closing Date or the
Second Closing Date, as the case may be, for not more than seven business days
in order that the necessary changes in the Registration Statement, Prospectus
and any other documents, as well as any other arrangements, may be effected.  As
used in this Agreement, the term "Underwriter" includes any person substituted
for an Underwriter under this Section.  Nothing herein will relieve a defaulting
Underwriter from liability for its default.

     SECTION 14.  EFFECTIVE DATE.  This Agreement shall become effective upon
the execution and delivery of this Agreement by the parties hereto.  Such
execution and delivery shall include an executed copy of this Agreement sent by
telecopier, facsimile transmission or other means of transmitting written
documents.

     SECTION 15.  TERMINATION.  Without limiting the right to terminate this
Agreement pursuant to any other provision hereof, this Agreement may be
terminated by the Representatives prior to or on the First Closing Date and the
over-allotment option from the Company and the Selling Stockholder referred to
in section 6 hereof, if exercised, may be cancelled by the Representatives at
any time prior to or on the Second Closing Date, if in the judgment of the
Representatives, payment for and delivery of the Shares is rendered
impracticable or inadvisable 

                                       -35-

<PAGE>

because:

          (a)  additional governmental restrictions, not in force and effect on
     the date hereof, shall have been imposed upon trading in securities
     generally or minimum or maximum prices shall have been generally
     established on the New York Stock Exchange or the American Stock Exchange,
     or trading in securities generally shall have been suspended or materially
     limited on either such exchange or on The Nasdaq Stock Market or a general
     banking moratorium shall have been established by either federal or state
     authorities in New York, Florida, Illinois or Wisconsin;

          (b)  any event shall have occurred or shall exist which makes untrue
     or incorrect in any material respect any statement or information contained
     in the Registration Statement or which is not reflected in the Registration
     Statement but should be reflected therein to make the statements or
     information contained therein not misleading in any material respect; or

          (c)  an outbreak or escalation of hostilities or other national or
     international calamity or any substantial change in political, financial or
     economic conditions shall have occurred or shall have accelerated to such
     extent, in the judgment of the Representatives, as to have a material
     adverse effect on the financial markets of the United States, or to make it
     impracticable or inadvisable to proceed with completion of the sale of and
     payment for the Shares as provided in this Agreement.

     Any termination pursuant to this Section shall be without liability on the
part of any Underwriter to the Company or the Selling Stockholder, or on the
part of the Company or the Selling Stockholder to any Underwriter, except for
expenses to be paid by the Company and the Selling Stockholder pursuant to
section 9 hereof or reimbursed by the Company pursuant to section 7(n) hereof
and except as to indemnification to the extent provided in section 12 hereof.

     SECTION 16.  REPRESENTATIONS AND INDEMNITIES TO SURVIVE DELIVERY.  The
respective indemnities, agreements, representations, warranties, covenants and
other statements of the Company, of its officers or directors, of the Selling
Stockholder, and of the several Underwriters set forth in or made pursuant to
this Agreement will remain in full force and effect, regardless of any
investigation made by or on behalf of any Underwriter, Selling Stockholder or
the Company or any of its or their partners, officers, directors or any
controlling person, as the case may be, and will survive delivery of and payment
for the Shares sold hereunder.

     SECTION 17.  NOTICES.  All communications hereunder will be in writing and,
if sent to the Representatives, will be mailed, delivered, telecopied (with
receipt confirmed) or telegraphed and confirmed to Cleary Gull Reiland &
McDevitt Inc. at 100 East Milwaukee Avenue, Milwaukee, WI 53202, Attention:
John R. Peterson, Managing Director, with a copy to Timothy R.M. Bryant, Esq.,
McDermott, Will & Emery, 227 W. Monroe Street, Chicago, Illinois 60606 and if
sent to the Company, will be mailed, delivered, telecopied (with receipt
confirmed) or telegraphed and confirmed to the Company at Richardson
Electronics, Attention:  Edward J. 

                                       -36-

<PAGE>

Richardson with a copy to Ross & Hardies, 150 N. Michigan Avenue, Suite 2500, 
Chicago, Illinois 60601 and, if sent to the Selling Stockholder, will be 
mailed, delivered, telecopied (with receipt confirmed) or telegraphed and 
confirmed, in care of the Company, with copies to Ross & Hardies, 150 N. 
Michigan Avenue, Suite 2500, Chicago, Illinois 60601;.

     SECTION 18.  SUCCESSORS.  This Agreement will inure to the benefit of and
be binding upon the parties hereto and their respective successors, personal
representatives and assigns, and to the benefit of the officers and directors
and controlling persons referred to in section 12 hereof and no other person
will have any right or obligation hereunder.  The term "successors" shall not
include any purchaser of the Shares as such from any of the Underwriters merely
by reason of such purchase.

     SECTION 19.  PARTIAL UNENFORCEABILITY.  If any section, paragraph, clause
or provision of this Agreement is for any reason determined to be invalid or
unenforceable, such determination shall not affect the validity or
enforceability of any other section, paragraph clause or provision hereof.

     SECTION 20.  APPLICABLE LAW; COUNTERPARTS.  This Agreement shall be
governed by and construed in accordance with the internal laws of the State of
Wisconsin without reference to conflict of law principles thereunder.  This
Agreement may be signed in various counterparts which together shall constitute
one and the same instrument, and shall be effective when at least one
counterpart hereof shall have been executed by or on behalf of each party
hereto.

     If the foregoing is in accordance with your understanding of our agreement,
kindly sign and return to us the enclosed duplicates hereof, whereupon it will
become a binding agreement among the Company, the Selling Stockholder and the
several Underwriters, including the Representatives, all in accordance with its
terms.

                              Very truly yours,

                              RICHARDSON ELECTRONICS, LTD.


                              By: ______________________________

                                  _____________________, President


                              

                              THE SELLING STOCKHOLDER:


                              By:  ____________________________
                                   Edward J. Richardson


                                       -37-

<PAGE>


                                        -38-

<PAGE>

The foregoing Underwriting
Agreement is hereby confirmed
and accepted as of the date
first above written.

CLEARY GULL REILAND & McDEVITT INC.
MCDONALD & COMPANY SECURITIES, INC.

By:  Cleary Gull Reiland & McDevitt Inc.
     Acting as Representatives of the several
     Underwriters (including themselves) identified
     in Schedule II annexed hereto.

By:  ______________________________________ 
     Authorized Representative


                                      -39-

<PAGE>



                             RICHARDSON ELECTRONICS, LTD.

                                      SCHEDULE I



                              NUMBER OF                     NUMBER OF
                              FIRM SHARES                OPTIONAL SHARES


The Company          __________________________      ________________________
                                                           
Edward J. Richardson



<PAGE>

                             RICHARDSON ELECTRONICS, LTD.


                                     SCHEDULE II



     
                                                     NUMBER OF FIRM SHARES
NAME OF UNDERWRITER                                    TO BE PURCHASED
Cleary Gull Reiland & McDevitt Inc. . . . . . . .  . . . . . . . . . . 
McDonald & Company Securities, Inc.  . . . . . . .  . . . . . . . . . . 


<PAGE>

                             RICHARDSON ELECTRONICS, LTD.

                                     SCHEDULE III

<PAGE>

                                                 Exhibit 5


                               March 31, 1998


Richardson Electronics, Ltd.
40W267 Keslinger Road
LaFox, Illinois 60147

     Re: Registration Statement on Form S-2

Ladies and Gentlemen:

     We refer to the Registration Statement on Form S-2 (the "Registration 
Statement") being filed by Richardson Electronics, Ltd., a Delaware 
corporation (the "Company"), with the Securities and Exchange Commission 
under the Securities Act of 1933, as amended (the "Securities Act"), relating 
to the offer and sale of up to 3,450,000 shares of Common Stock, $0.05 par 
value per share (the "Common Stock") of the Company (including a 15% 
underwriter's over-allotment option) of which up to 1,725,000 will be sold by 
the Company and up to 1,725,000 will be sold by the Selling Stockholder.

     Each term used herein that is defined in the Registration Statement and 
not otherwise defined herein shall have the meaning specified in the 
Registration Statement.

     We are familiar with the proceedings to date with respect to the proposed 
offering of the Common Stock and have examined such records, documents and 
questions of law, and satisfied ourselves as to such matters of procedure, 
law and fact, as we have considered relevant and necessary as a basis for the 
opinion expressed in this letter. In such examination, we have assumed the 
genuineness of all signatures, the authenticity of all documents submitted 
to us as originals, the conformity to orginals of all documents submitted to 
us as certified copies or photocopies and the authenticity of the originals 
of such copied or photocopied documents.

     Based on the foregoing, and subject to the qualifications set forth 
hereinafter, we are of the opinion that:

    1. The Company is duly incorporated and validly existing under the laws 
of the State of Delaware.

<PAGE>

Richardson Electronics, Ltd.
March 31, 1998
Page 2

     2. The Common Stock has been duly authorized and, when issued and sold 
by the Company in accordance with the Registration Statement, will be legally 
issued, fully paid and nonassessable shares of Common Stock of the Company.

    We express no opinion as to the application of the securities or blue sky 
laws of the various states to the issuance of the Common Stock.

    We hereby consent to the reference to our firm under the caption "Legal 
Matters" in the Registration Statement and the related Prospectus, and to the 
filing of this opinion as an Exhibit to the Registration Statement.

                                      Very truly yours,


                                      ROSS & HARDIES



                                      By: /s/ David S. Guin
                                         ------------------------------
                                           A Partner

<PAGE>

                                                            Exhibit 23(a)



                        Consent of Independent Auditors

We consent to the reference to our firm under the captions "Selected 
Consolidated Financial Data" and "Experts" in the Registration Statement on 
Form S-2 and related Prospectus of Richardson Electronics Ltd. for the 
registration of 3,450,000 shares of its common stock and to the inclusion of 
and incorporation by reference therein of our report dated July 8, 1997 
(except for "Earnings per Share" in Note A as to which the date is February 
28, 1998) with respect to the consolidated financial statements of Richardson 
Electronics Ltd. incorporated by reference in its Annual Report (Form 10-K) 
for the year ended May 31, 1997 and the related schedule included therein, 
filed with the Securities and Exchange Commission.

                                     /s/ Ernst & Young LLP


Chicago, Illinois
March 30, 1998




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