LM3900 Audio Mixer
![](https://freecircuitdiagram.com/wp-content/uploads/2011/01/Audio-Mixer.gif)
This audio mixer circuit doesn’t use a low impedance input to mix no ideal sources, but use many amplifiers to provide ideal sources before mixed through simple resistors. Ideal source means a sources with low impedances, make the interaction between signals in the output doesn’t affect the input. Please note that this mixer circuit has high impedance output, so you’ll […]
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