AFC defeat mechanism

Details AFC defeat mechanism AFC defeat mechanism

1975-03-31

1976-09-21

Griffin, Robert L.

H04B 106

Patent

active

039821870

ABSTRACT:
A mechanism for driving a television tuner channel indicator located behind a panel and mounted concentrically with a selector shaft and a concentric fine tuning shaft. The driving mechanism includes a two-piece gear housing mounted on the selector shaft for rotation therewith, a driving gear affixed to the fine tuning shaft, a driven gear, and three planetary gears mounted within the housing and engaging the driving and driven gears. The selector shaft passes through the gear housing and engages the coarse tuning mechanism of the tuner. The driven gear engages the fine tuning mechanism of the tuner, and the indicator is attached to the gear housing. The driving mechanism may be provided with apparatus for actuating an AFC defeat switch when the television tuner is being fine tuned or tuned between channels.

REFERENCES:
patent: 2956437 (1960-10-01), Opocensky
patent: 3466549 (1969-09-01), Milnes
patent: 3870961 (1975-03-01), Suzuki

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