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Adcom Admiral Aiwa Akai Altec Lansing Amber Ampex Archer Arvin Astron AT&T Audiotronics Audiovox Aurora Electronics Bang & Olufsen BASF Bentley Blaupunkt Bogen Boman Bose Boston Acoustics Bozak Bradford Canon Cariole Carver Casio Cerwin-Vega Commodore Concord Cornell Dubilier Craig Crosley Decca Denon Dual Electronics Dumont Dynaco Dyn Sonic Eico Electrophonic Electro-Voice Elgin Emerson Empire Fisher Freed Fujifilm Garrard GE Grundig GTE Hafler Hallicrafters Hammond Harman Kardon Hatch Heathkit Hitachi HP Infinity ITT JBL JCPenney Jennings Jensen JVC KEF Kellogg Kenwood KLH Klipsch Knight Lafayette Lennox Litronix Lloyds Luxman Magnavox Magnetek Marantz Maxell Mayfair McIntosh Merit Meriton Mitsubishi Monroe Motorola Mullard NAD Nakamichi Northern Telecom Olivetti Olympic Onkyo Otari Panaphone Panasonic Parasound PAX Pentron Philco Philips Pioneer Polk Audio Precor Pyle Quantegy Quasar RadioShack Radiotron Raytheon RCA Realistic Realtone Revox Rockwell Royal Rubycon Samsung Sangamo Sansui Sanyo Scotch Scott Sears Sharp Sherwood Shure Siemens Silvertone Sony Soundesign Stancor Stewart Stromberg Carlson Svetlana Sylvania Symphonic Tamura Tandberg Tannoy Tascam Teac Technics Tektronix Telefunken Tenna Texas Instruments Thordarson Thorens Toshiba Toyo Triad Truetone Unbranded/Generic Uniden Unisonic UTC Valvo Victor Webcor Weltron Western Electric Westinghouse Yamaha Yaqin Zenith Not Specified