NASA NTRS · 19690000339
Helical recorder
Abstract
Tape recorder, using metallic tape, has a minimum of moving parts and no belts. It permits long-term bulk storage in extreme environments, and has less weight and bulk than present recording equipment.
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Cole, P. T., Studer, P. A., Tyler, A. L.. 1969-11-01. Helical recorder. https://ntrs.nasa.gov/citations/19690000339
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