Bidirectional channel skipping tuner drive system with single po

Details Bidirectional channel skipping tuner drive system with single po Bidirectional channel skipping tuner drive system with single po

1976-03-05

1977-11-15

Schaefer, Robert K.

Electricity: motive power systems

Plural diverse motor controls

Motor-reversing

318467, G05B 1101

Patent

active

040587568

ABSTRACT:
A television tuner drive system includes a bidirectional electric motor coupled to a rotatable channel selector. A carryover cam and switch coupled to the motor causes the motor power to be decoupled at each broadcast channel position. A plurality of cams are supported by a rotating drum coupled to the channel selector and coact with a cam follower and single pole switch to override the carryover switch and maintain power coupling to the motor. The drum-supported cams are positionable to selectively coact or clear the cam follower permitting programming of channel stop positions.

REFERENCES:
patent: 2989679 (1961-06-01), Guzskie
patent: 3790956 (1974-02-01), Ichikawa et al.
patent: 3796938 (1974-03-01), Funston
patent: 3831074 (1974-08-01), Smalser

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