Magnetic erasing head

Details Magnetic erasing head Magnetic erasing head

1980-08-28

1982-12-28

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Erase

G11B 527

Patent

active

043665179

ABSTRACT:
A magnetic erasing head for use in a radio receiver/tape recorder combination, includes a housing, a core unit of ferrite and an electrical winding. The housing has an opening which leaves a surface of the core unit free for cooperation with a record carrier to be erased. In order to control the generation of higher harmonics of the erasing frequency which might interfere in particular with radio reception on the medium wave range, the core unit is constructed with an entirely open rear circuit. In other words, the usual closing part is absent.

REFERENCES:
patent: 3846840 (1974-11-01), Childers et al.

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