Telemetry magnetic tape recorder/reproducer
R. E. Hadady, Sol Gilman · IRE Transactions on Telemetry and Remote Control · 1957
An entirely new magnetic recorder/reproducer system has been developed for Telemetry use. Designed for 7-track, 1/2″ tape and 14″ reels, it is easily convertible to 1/4″ and 1″ tape (2 to 14 tracks). Primary design features are extreme accuracy (.05% peak to peak wow and flutter), versatility (completely interchangeable Analog, PDM and FM electronics, or any combination of these), and mechanical simplicity and reliability.