Scope and content:

Sound recording and communication: magnetic tape, reels, machines, heads (non-instrumentation, mostly), phonographs, radios, amplifiers, pre-amps, microphones, speakers, headphones, public address systems, intercoms, motion picture sound, dictation, transcription services, tape duplication, spectrum analysis, tone encoding. See also telecommunications, data, noise measurement, film, video, misc. A/V

Includes Ampex Corp., Amega, Altec Lansing (division of LTV Ling Altec, Inc.), Amperex Electronic Corp., Astro-Science Corp., CBS Laboratories (division of Columbia Broadcasting, Inc.), Cognitronics Corp., DeJur Grundig, Dictaphone Corp., Digidesign Inc., Eastman Kodak Company, Electro-Voice, Ferroxcube Corp., Fidelity Sound Company, General Radio Company ("Experimenter"), Gotham Audio Corp. (+Infotronic Systems Inc. division), International Business Machines Corp. (IBM), International Telephone & Telegraph Corp. (ITT), Korting (division of Matthew Stuart & Company, Inc.), Leach Corp., Lanier Electronic Laboratory, Inc. (Carrivoice), Ledex (Bramco Controls Division), Magne-Head (division of General Instrument Corp.), MagnaSync Corp. (subsidiary of Monogram Industries, Inc.), Memorex Corp., Michigan Magnetics (subsidiary of VSI Corp.), Miles Reproducer Company, Inc., Minnesota Mining & Manufacturing Company (3M), Norelco, Nortronics Co., Inc., Norfolk-Hill, Ltd. (distributor of Stuzzi Memocord), Sony Corporation of America, Switchcraft, Inc., Talk-a-Phone Company, Telex Acoustic Products, Uher Werke, Visual Electronics Corp., Voca Corp., Wollensack (3M-Revere Mincom Division), Zelex Marketing Corp.

Contents

Access and use