Receiver with voltage tunable tuned circuits

Details Receiver with voltage tunable tuned circuits Receiver with voltage tunable tuned circuits

H - Electricity

03

J

365/13

H03J 3/18 (2006.01) H03J 5/02 (2006.01) H03J 7/02 (2006.01) H03J 7/26 (2006.01)

Patent

CA 1047660

ABSTRACT OF THE DISCLOSURE A receiver tuning circuit in which without opera- tion of extra switches a change-over can be made from tuning by means of a continuously varying tuning voltage to tuning by means of one of a number of adjusted tuning voltages by using a capacitor controlled by an automatic tuning corre- tion current source circuit for obtaining said voltage, and an automatic switch comprising a time-constant circuit for applying during a time determined by the time-constant cir- cuit the desired tuning voltages to this capacitor upon operation of an operating device with which an adjusted tun- ing voltage is selected for being temporarily supplied to the capacitor by the automatic switch.

220694

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