2 INPUT AUDIO MIXER with 2N3904

  
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As simple as it gets. The mixer consists of two transistor-based preamplifiers. The aboriginal one (designated Mike in ) offers college gain. it works able-bodied with a approved activating microphone. The additional one can be acclimated to ascendancy audio ascribe from a band recorder/CD player. [. ]
2 INPUT AUDIO MIXER with 2N3904 - schematic




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