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.
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.
Source: Wikipedia "Type A videotape" · CC BY-SA 4.0
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