1 inch type A videotape

From Wikipedia, the free encyclopedia

1 inch type A (designated Type A by SMPTE) is an open-reel videotape format developed by Ampex in 1965, that was one of the first standardized open-reel videotape formats in the 1 inch (25 mm) width (most others of that size at that time were proprietary).

Type A was developed as mainly an industrial & institutional format (where it saw the most success). It was not widely used for broadcast television, since it did not meet Federal Communications Commission specifications (at the time) for broadcastable videotape formats (the only format passing the FCC's muster at the time was the then-industry-standard 2 inch Quadruplex).

This format was later replaced by the 1 inch type C videotape, manufactured by Ampex, Sony and Hitachi.


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Industrial & home video media
Magnetic tape

VERA (1952) - 2 inch Quadruplex videotape (1956) - 1 inch type A videotape (1965) - 1/4 inch Akai (1967) - U-matic (1969) - Cartrivision (1972) - Video Cassette Recording (aka VCR) (1972) - V-Cord (1974) - VX (aka "The Great Time Machine") (1974) - Betamax (1975) - 1 inch type B videotape (1976) - 1 inch type C videotape (1976) - VHS (1976) - VK (1977) - SVR (1979) - Video 2000 (1980) - CVC (1980) - VHS-C (1982) - M (1982) - Betacam (1982) - Video8 (1985) - MII (1986) - D1 (1986) - S-VHS (1987) - D2 (1988) - Hi8 (1989) - D3 (1991) - D5 (1994) - Digital-S (D9) (199?) - S-VHS-C (1987) - W-VHS (1992) - DV (1995) - Betacam HDCAM (1997) - D-VHS (1998) - Digital8 (1999) - HDV (2003)
Optical discs

LaserDisc (1978) - Laserfilm (1984) - CD Video - VCD (1993) - DVD-Video (1996) - MiniDVD - CVD (1998) - SVCD (1998) - FMD (2000) - EVD (2003) - FVD (2005) - UMD (2005) - VMD (2006) - HD DVD (2006) - Blu-ray Disc (BD) (2006) - DMD (2006?) - AVCHD (2006) - Tapestry Media (2007) - Total Hi Def (2007) - HVD (TBA) - PH-DVD (TBA) - SVOD (TBA) - Protein-coated disc (TBA) - Two-Photon 3-D (TBA)
Grooved Videodiscs

Baird Television Record aka Phonovision (1927) - TeD (1974) - Capacitance Electronic Disc aka CED (1981) - VHD (1983)
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