EXHIBIT 23 Consent of Independent Auditors We consent to the incorporation by reference in the Registration Statement on Form S-8 pertaining to the Richardson Electronics, Ltd. Employees' 1999 Stock Purchase Plan, of our report dated July 14, 1998, with respect to the consolidated financial statements of Richardson Electronics, Ltd. incorporated by reference in its Annual Report on Form 10-K for the year ended May 31, 1998 and the related financial statement schedule included therein, filed with the Securities and Exchange Commission. Ernst & Young LLP April 20, 1999 Chicago, Illinois