Emerson Radio Corporation is one of the United States' largest volume consumer electronics distributors and has a recognized trademark in continuous use since 1912. The company designs, markets, and licenses many product lines worldwide, including products sold, and sometimes licensed, under the brand name G Clef, an homage to Emerson's logo.
Emerson portable AM/FM stereo radio and CD player
Emerson Model 400-3 "Patriot" (1940) radio, made of Catalin
Allen B. DuMont Laboratories, Inc. was an American television equipment manufacturer and broadcasting company. At one point it owned TV stations WABD, KCTY, W2XVT, KE2XDR, & WDTV, as well as WTTG, all former affiliates of its defunct DuMont Television Network.
Dual-beam cathode ray oscilloscope type 322-A, Du Mont Laboratories, early 1950s