1975-06-11
1977-01-18
Cardillo, Jr., Raymond F.
17910041Z, H04R 1112
Patent
active
040041085
ABSTRACT:
A pick-up cartridge includes an armature being attached with a cantilever having a sound needle at an end composed of two pieces of high magnetic permeable material, each constituting a separate magnetic path, and a piece of magnetically high resistance material interposed between the two pieces of high magnetic material, a magnet provided in a relation opposing to an end of the armature, and an E-shaped yoke provided in opposition to another end of the armature with a detecting coil wound thereon, so that magnetic fluxes created by the magnet are firstly passed through one of the two pieces of the high magnetic permeable material, and on their return, passed through the other piece of the material.
REFERENCES:
patent: 2507708 (1950-05-01), Greener
patent: 3542972 (1970-11-01), Braun
patent: 3627931 (1971-12-01), Matsuda
patent: 3763335 (1973-10-01), Marita
Cardillo, Jr. Raymond F.
Pioneer Electronic Corporation
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