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2 Channel Audio Mixer circuit diagram

2014-11-04 03:13  
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A very simple and easy audio mixer circuit can be build using few common electronic components  .  This audio mixer circuit project has two input channels  . The input signal can be independently controlled using  the R1 and R2 variable resistors.

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The R3 variable resistor offers possibility to fade out one of the signal while the other signal is fading in . The gain of the mixer is provided by the 2N3563 NPN transistor . 
The R4 variable resistor connected at the audio mixers output offer possibility to control the output signal volume .
This electronic audio mixer schematic  need  to be powered by a 9 volts DC power supply .

2 channel audio mixer electronic schematic circuit based on common components