Tone arm mechanism

Details Tone arm mechanism Tone arm mechanism

1979-05-29

1981-11-17

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369215, 369233, 369230, G11B 310

Patent

active

043015280

ABSTRACT:
A tone arm system for a record player is provided having servo-controlled record warp compensation means including a moving coil motor for driving the tone arm vertically and a moving magnet motor for driving the tone arm horizontally in response to servo-currents.

REFERENCES:
patent: 3623734 (1971-11-01), Sakamoto et al.
patent: 4102536 (1978-07-01), Cluris
patent: 4105961 (1978-08-01), Plummer et al.
patent: 4143879 (1979-03-01), Wren
patent: 4214756 (1980-07-01), Ohmura

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