Richardson Electronics, Ltd. is a specialized global provider of engineered solutions serving the radio frequency (RF) and wireless communications, industrial power conversion, security and display systems markets. The Company provides engineered solutions to its customers through product manufacturing, systems integration, prototype design and assembly, testing and logistics 

http://www.rell.com
40W267 Keslinger Road, PO Box 393
LaFox, IL 60147
Phone: (630) 208-2200
Fax: (630) 208-2550