Phonograph pick-up arm control arrangement

Details Phonograph pick-up arm control arrangement Phonograph pick-up arm control arrangement

1975-11-25

1978-08-08

Schaefer, Robert K.

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

17910041R, 318112, G05B 1101

Patent

active

041059611

ABSTRACT:
This invention relates to arrangements for use in controlling the movement of a pivoted arm and it has particular, though not exclusive, application in controlling the movement of a phonograph pick-up arm.

REFERENCES:
patent: 2735973 (1956-02-01), Akerman
patent: 2925544 (1960-02-01), Lang
patent: 2930957 (1960-03-01), Cronberger
patent: 3471655 (1969-10-01), Herve
patent: 3623734 (1971-11-01), Sakamoto
patent: 3767848 (1973-10-01), Schuller et al.
patent: 3830505 (1974-08-01), Rabinow
patent: 3857081 (1974-12-01), Gebelein

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