Stereophonic pickup cartridge

Details Stereophonic pickup cartridge Stereophonic pickup cartridge

1975-07-09

1977-07-19

Cardillo, Jr., Raymond F.

17910041M, 17910041Z, H04R 1112

Patent

active

040370607

ABSTRACT:
A stereophonic pickup cartridge includes both a rod-shaped armature and a disk-shaped armature, both of which magnetically interact with the pole pieces of coils to improve the magnetic efficiency of the cartridge.

REFERENCES:
patent: 3067295 (1962-12-01), Stanton
patent: 3184555 (1965-05-01), Marshall
patent: 3538266 (1970-11-01), Cho
patent: 3576955 (1971-05-01), Obata
patent: 3700829 (1972-10-01), Anneberg et al.
patent: 3761647 (1973-09-01), Nemoto et al.

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