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Media type | Magnetic Tape |
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Encoding | NTSC, PAL |
Write mechanism | magnetic single-head[1] |
Usage | Video production |
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.[2]