Improve electronic tuner of intermediate frequency circuit interference killing feature

The utility model relates to an electronic tuner, the purpose is for the connected mode of solving current electronic tuner and whole set easily receives reverse interference that the complete machine produced, leads to the problem that overall machine stability is poor. The utility model discloses an electronic tuner, including first resistance, second resistance, third resistance, first electric capacity, second electric capacity, third electric capacity and fourth electric capacity. Owing to increased first resistance, second resistance, the 3rd resistors's resistance network on prior art's basis, its high impedance characteristic to low frequency signals can guarantee that electronic tuner intermediate frequency signal avoids low frequency signals's interference when transmitting complete machine chip end to, and the abundant filtering of radio -frequency component can be gone up on earth with intermediate frequency signal to high frequency signal's low impedance characteristic to third electric capacity,