VHF AND UHF AUTOMATIC GAIN CONTROL CIRCUITRY DERIVED FROM A SINGLE CONTROL VOLTAGE

摘要

A television receiver includes VHF and UHF tuners, each having a separate radio frequency amplifier. The AGC control voltage developed in the receiver and used for VHF gain control is adapted to control the gain of the UHF tuner and to otherwise accommodate the different gain characteristics of the UHF amplifier.