NAB tape cartridge eraser and splice finder

Details NAB tape cartridge eraser and splice finder NAB tape cartridge eraser and splice finder

1977-03-31

1979-02-27

Goldberg, Gerald

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

360 66, H01F 1300

Patent

active

041422210

ABSTRACT:
A combined eraser and splice finder for an NAB tape cartridge which comprises apparatus for subjecting an NAB tape cartridge to an initially strong and thereafter diminishing and vanishing oscillating magnetic field for bulk tape erasure and which, independently or at the termination of the erasure cycle, also senses the presence of the tape splice and stops tape travel within the cartridge at a point where subsequent recording can begin immediately behind the splice. The apparatus is capable of erasure without splice-finding or splice-finding without erasure.

REFERENCES:
patent: 2816176 (1957-12-01), Taris et al.
patent: 3548113 (1970-12-01), Althuber
patent: 3938011 (1976-02-01), Littwin

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