Mic Mixer Circuit Diagram
2 Channel Mic Mixer Circuit Diagram is designed for handling high impedance dynamic microphones. Transistor Q1 can be any general purpose PNP transistor like BC177 or BC157B. Resistor R5 biases the transistor while R3 and R4 provide channel isolation.
2 Channel Mic Mixer Circuit Diagram
However, this 2 Channel Mic Mixer Circuit Diagram better the transistor quality better the performance. C1 and C2 perform the job of input coupling and DC isolation while C4 is the output DC decoupling capacitor. Resistors R1 and R2 can be used for the level control of input signals.