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  2. Quadruplex videotape - Wikipedia

    en.wikipedia.org/wiki/Quadruplex_videotape

    The AVR-2 was the most compact of quad VTRs, using conventional 120 volt (V) single-phase household-type AC power to operate, rather than the 208 or 220 V three-phase AC power required by larger quad machines. RCA released later models of quad VTRs as well, such as the TR-22, TR-70, and TR-600. [citation needed]

  3. Reel-to-reel audio tape recording - Wikipedia

    en.wikipedia.org/wiki/Reel-to-reel_audio_tape...

    A reel-to-reel tape recorder (Sony TC-630), typical of a 1970s audiophile device. Reel-to-reel audio tape recording, also called open-reel recording, is magnetic tape audio recording in which the recording tape is spooled between reels. To prepare for use, the supply reel (or feed reel) containing the

  4. Video tape recorder - Wikipedia

    en.wikipedia.org/wiki/Video_tape_recorder

    AMPEX quadruplex VR-1000A, the first commercially released video tape recorder in the late 1950s; quadruplex open-reel tape is 2 inches wide The first portable VTR, the suitcase-sized 1967 AMPEX quadruplex VR-3000 1976 Hitachi portable VTR, for Sony 1" type C; the source and take-up reels are stacked for compactness. However, only one reel is ...

  5. Type A videotape - Wikipedia

    en.wikipedia.org/wiki/Type_A_videotape

    1-inch Type A Helical Scan or SMPTE A is a reel-to-reel helical scan analog recording videotape format developed by Ampex in 1965, that was one of the first standardized reel-to-reel magnetic tape formats in the 1–inch (25 mm) width; most others of that size at that time were proprietary. It was capable of 350 lines.

  6. Videotape - Wikipedia

    en.wikipedia.org/wiki/Videotape

    A 14-inch reel of 2-inch quad videotape compared with a modern-day MiniDV videocassette. Both media store one hour of color video. The first commercial professional broadcast quality videotape machines capable of replacing kinescopes were the two-inch quadruplex videotape (Quad) machines introduced by Ampex on April 14, 1956, at the National Association of Broadcasters convention in Chicago.

  7. Ampex - Wikipedia

    en.wikipedia.org/wiki/Ampex

    Internals of Ampex Fine Line F-44, a 3-head Ampex home-use audio tape recorder, c. 1965 AMPEX model 300 half-inch three-track recorder AMPEX 440 (2tr, 4tr) & 16-track MM 1000. The company's first tape recorder, the Ampex Model 200A, was first shipped in April 1948. The first two units, serial numbers 1 and 2, were used to record Bing Crosby's ...

  8. Type C videotape - Wikipedia

    en.wikipedia.org/wiki/Type_C_videotape

    1-inch Type C Helical Scan or SMPTE C is a professional reel-to-reel analog recording helical scan videotape format co-developed and introduced by Ampex and Sony in 1976. It became the replacement in the professional video and broadcast television industries for the then-incumbent 2-inch quadruplex videotape (2-inch Quad for short) open-reel format.

  9. Quadraphonic open reel tape - Wikipedia

    en.wikipedia.org/wiki/Quadraphonic_open_reel_tape

    This was a consumer, or home format based on the much larger and more expensive professional reel-to-reel tape multitrack recording systems that had been built for recording studios by 1954. [2] Professional four-track machines used either one inch or ½-inch tape at a speed of 15 or 30 inches per second (IPS) for the highest quality sound.