Moving coil type phono cartridge

Details Moving coil type phono cartridge Moving coil type phono cartridge

1980-01-25

1983-05-24

Konick, Bernard

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Mechanical modification or sensing of storage medium

369147, 369172, G11B 330

Patent

active

043853757

ABSTRACT:
An MC type phono cartridge which is simple in construction and easy to assemble and in which the stylus tip may be easily interchanged. The cartridge includes a pair of magnet units and an associated vibration unit. Included in the vibration unit is a cantilever with a stylus tip fixed to one end thereof with a disc-like member fixed to the other end of the cantilever. A string is attached at one end to the cantilever and at the other end to a string member holder which is in turn attached to the supporting member. A damper is disposed between a disc-like member and the supporting member. A pair of induction coils are disposed on the disc-like member. Each of the two magnet units includes a pair of adjacent magnets disposed with like magnetic poles confronting each other with the confronting portions of the magnets spaced from the induction coil at a preset gap. The vibration unit is detachable from the magnet unit for ease of stylus tip interchange.

REFERENCES:
patent: 3991284 (1976-11-01), Braun
patent: 4233476 (1980-11-01), Ikeda
patent: 4237349 (1980-12-01), Hansen et al.
patent: 4272652 (1981-06-01), Ogikubo
patent: 4327433 (1982-04-01), Okura et al.

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