Exhibit 21

                           SUBSIDIARIES
                                OF
                   RICHARDSON ELECTRONICS, LTD.


               Richardson Electronics Canada, Ltd.     Canada                   

               Richardson Electronics (Europe) Ltd.    United Kingdom           

               RESA, SNC                               France                   

               Richardson France SNC                   France

               Richardson Electronics Italy SRL        Italy                    

               Richardson Electronics Iberica, S.A.    Spain                    

               Richardson Electronics GmbH             Germany             

               Richardson Electronics Japan K.K.       Japan                    

               Richardson Electronics Pte Ltd.         Singapore           

               Richardson Electronics S.A. de C.V.     Mexico    

               Richardson Electronics Benelux B.V.     The Netherlands

               Richardson Electronics do Brasil Ltda.  Brasil

               Richardson Electronics Pty Limited      Australia

               Tubemaster, Inc.                        United States