 Headquartered in Greenlawn, Long Island, New York, since 1955, it had facilities in several other locations in Long Island, including its Wheeler Laboratories facility in Smithtown, New York, manufacturing plants in Riverhead and Little Neck, NY, and a division in Braintree, Massachusetts.The company originally concentrated on the design of electronic circuits and the licensing of patents.Innovations in radio, monochrome and later color television components allowed the company to grow.