Signal-combiner  

Category:
Audio Mixer Circuits
Added on
Aug 10, 2012
This circuit uses buffer stages to prevent channel crosstalk back through the mixer resistor network. The potentiometers used for each stage allow for convenient signal strength adjustment, while maintaining input impedance matching at the 600-0 audio standard.
Signal-combiner - schematic

The feedback resistor R1will permit the output signal gain to be as high as 15 dB.




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