FET Audio Mixing and Switching Circuit Diagram

Two or more signals can be switched and /or mixed without annoying clicks by using this fet audio mixer and switch circuit.

Junction-FETs such as the BF245 or 2N3819 already popular in HF circuits but it can also applied to LF circuits.

BF245

You can mute these signals using S1 and S2. The circuit should mute sufficiently any audio from 20 Hz to 20 kHz.

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