UHF Substrate tuner potentiometer

Details UHF Substrate tuner potentiometer UHF Substrate tuner potentiometer

1976-11-08

1978-08-08

Albritton, C. L.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338176, H01C 1040

Patent

active

041059891

ABSTRACT:
A potentiometer assembly for providing DC voltages for tuning the UHF channels of a varactor diode television tuner comprises a housing divided into a plurality of elongated compartments, each having a resistive element associated therewith. Each compartment is configured for slidably maintaining a replaceable contact-carrying carriage member disposed for engaging one of the resistive elements. A threaded shaft is removably associated with and longitudinally disposed within each of the compartments and is operable for driving a carriage member within its compartment to displace its associated contact member along the corresponding resistive element.

REFERENCES:
patent: 2857497 (1958-10-01), Bourns et al.
patent: 2873339 (1959-02-01), Bourns et al.
patent: 2890432 (1959-06-01), Rockafellow
patent: 3412362 (1968-11-01), Woods et al.
patent: 3703699 (1972-11-01), Lahm et al.
patent: 4005381 (1977-01-01), Klug

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