Richardson Announces Date of First Quarter Fiscal 2009 Conference Call

Richardson Electronics, Ltd. (NASDAQ: RELL) plans to release its financial results for the first quarter ended August 30, 2008, after the close of business on Wednesday, October 8, 2008. The release will be distributed by Business Wire and will be available on the Company’s website at www.rell.com.

On Thursday, October 9, 2008, at 9:00 a.m. CT, Edward J. Richardson, Chairman and Chief Executive Officer, and Kathleen S. Dvorak, Chief Financial Officer, will host a conference call to discuss the Company’s first quarter fiscal 2009 results. A question and answer session will be included as part of the call’s agenda. To listen to the call, please dial 800-688-0796 and enter passcode 47833084 approximately five minutes prior to the start of the call. A replay of the call will be available beginning at 11:00 a.m. CT on October 9, 2008, for seven days. The telephone numbers for the replay are (USA) 888-286-8010 and (International) 617-801-6888; access code 94336648.

About Richardson Electronics

Richardson Electronics, Ltd. is a global provider of engineered solutions and a global distributor of electronic components to the radio frequency (“RF”), wireless and power conversion, electron device, and display systems markets. Utilizing its core engineering and manufacturing capabilities, the Company is committed to a strategy of providing specialized technical expertise and value-added products, or “engineered solutions,” in response to its customers’ needs. These solutions include products which it manufactures or modifies and products which are manufactured to the Company’s specifications by independent manufacturers under its own private labels. Additionally, the Company provides solutions and adds value through design-in support, systems integration, prototype design and manufacturing, testing, and logistics for end products of its customers. Press announcements and other information about Richardson are available at www.rell.com.

Richardson Electronics common stock trades on the NASDAQ Global Market under the ticker symbol RELL.