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From a tape transport standpoint, it's possible it's a real thing. The exaggerated distances in the tape path could be to take up slack during FF/RW of much higher tape speed recordings. Absent "logic controlled" transport, the usual way was to add 6+ inches of takeup in the mechanism. Audio decks of the day made do with about 1" of slack take-up.
I believe Pixelvision uses fm recording (of a CCD-captured signal). Data recorders back in the day used fm as well.
Chip
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