Damper means for damping the resonance of disc record tone arms

Details Damper means for damping the resonance of disc record tone arms Damper means for damping the resonance of disc record tone arms

1976-02-20

1978-12-26

Stephan, Steven L.

Undertaking

274 37, G11B 330

Patent

active

041312848

ABSTRACT:
This invention provides a damper for damping the resonance of a disc record tone arm comprising first and second relatively movable elements in engagement with energy absorbing material. The first element is secured relatively to the tone arm cartridge while the second element engages the record surface so as to be movable relatively thereto. The damper applies resistive force between the record surface and the cartridge to reduce variation in tracking force as the stylus traverses warps in the record surface.

REFERENCES:
patent: 2572712 (1951-10-01), Fisher
patent: 2716551 (1955-08-01), Bachman
patent: 3228700 (1966-01-01), Andrews et al.
patent: 3301565 (1967-01-01), Bachman
patent: 3830505 (1974-08-01), Rabinow

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