Signal overload protection circuit for varactor tuner

Details Signal overload protection circuit for varactor tuner Signal overload protection circuit for varactor tuner

1975-08-05

1976-09-28

Richardson, Robert L.

Tuners

Tuner unit with electromagnetic operator

Predetermined center frequency selector

325319, 325362, 325368, 325464, 334 15, H04B 118

Patent

active

039834905

ABSTRACT:
An abrupt junction type varactor diode television tuner includes a source of DC tuning voltage supplying bias to the diodes for tuning the tuner to broadcast television signals. The varactor diode in the RF amplifier stage is connected to the source of tuning voltage through a very large resistance which provides automatic signal overload protection.

REFERENCES:
patent: 3600684 (1971-08-01), Cherry
patent: 3613008 (1971-10-01), Jabbar
patent: 3622887 (1971-11-01), Byles

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