SCHAUMBURG, Ill.--(BUSINESS WIRE)--Sparton Corporation (NYSE:SPA) announced that its wholly owned subsidiary, Sparton of Canada, Ltd. completed the acquisition of substantially all of the assets of Stealth.com Inc., a $10 million revenue business (Canadian dollars) on March 16, 2015 in an all-cash transaction. Founded in 1990, Stealth.com, located in Woodbridge, Ontario, is a build-to-order, specialty configurator of high performance ruggedized industrial grade computer systems and peripherals