Rotary preset tuner

Details Rotary preset tuner Rotary preset tuner

1977-06-24

1979-05-15

Gensler, Paul L.

Tuners

With switching means

Inductor only modified or substituted by switching

74 1041, 74 106, 334 74, H03J 526

Patent

active

041550609

ABSTRACT:
A rotary preset tuner comprising a plurality of adjustable memory slugs, a single tuning member capable of being rotated in any direction, a sliding member connected to variable condenser elements and arranged so as to enable reciprocating movement thereof along guide members, and a sliding member reciprocation means for reciprocating the sliding member by rotating the tuning member. Tuning is provided by rotating the tuning member and reciprocating the sliding member to select a desired one of the plurality of adjustable memory slugs, the sliding member being resiliently abutted against the selected memory slug.

REFERENCES:
patent: 2534768 (1950-12-01), Hall
patent: 2580895 (1952-01-01), De Tar
patent: 2983885 (1961-05-01), Thomson
patent: 3675496 (1972-07-01), Yasuda et al.
patent: 3808896 (1974-05-01), Ogasawara et al.
patent: 3866479 (1975-02-01), Miner

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