Pivoted arm control arrangement

Details Pivoted arm control arrangement Pivoted arm control arrangement

1978-02-02

1980-04-29

Dobeck, B.

Electricity: motive power systems

Miscellaneous

274 23R, 1791004R, 318676, G11B 310

Patent

active

042008280

ABSTRACT:
Apparatus for controlling the movement of a phonograph arm, pivoted for movement in horizontal and vertical planes, so as to maintain a desired stylus pressure. Displacement of the stylus resulting, for example, from passages of heavy modulation is used to generate electrical signals. A feedback system utilizes these signals to control the operation of horizontal and vertical rotational control devices.

REFERENCES:
patent: 3623734 (1971-11-01), Sakamoto
patent: 3731938 (1973-05-01), Wren
patent: 3830505 (1974-08-01), Rabinow

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