Patent ID: 6864925

Claim:
A television tuner comprising: an input tuning circuit coupled to an input terminal; a high-frequency amplifier supplied with an output of said input tuning circuit; and an interstage tuning circuit supplied with an output of said high-frequency amplifier, each of said input tuning circuit and said interstage tuning circuit including a band-switching tuning circuit having a tuning inductor and a switching diode configured to switch an inductance of the inductor, wherein a power supply voltage is applied to an anode of each of the switching diodes via each of anode-side feed resistors, the anode being DC-grounded via a current-conductor, and wherein a tuning frequency band of each of said input tuning circuit and said interstage tuning circuit is switched by applying one of a high and low level switching voltage to a cathode of each of the switching diodes via each of cathode-side feed resistors.