Tuners – Tuner unit with electromagnetic operator – Predetermined center frequency selector
Patent
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
Camasto Nicholas A.
Richardson Robert L.
Zenith Radio Corporation
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