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Carvin Mixing Console and Powered Mixer Schematics ...
https://carvinaudio.com/pages/mixer-schematics
5 Simple Audio Mixer Circuits Explained - Homemade …
https://www.homemade-circuits.com/4-channel-dj-audio-mixer-circuit-part-1/
The explained circuits below are universal simple audio mixer circuits, that may be customized and upgraded to 5 channel or even 10 channel mixers, as desired by the user. Stereo Audio Mixer The operation stereo audio mixer circuit shown below is straightforward: If a mic is "being used," its output is applied to the MIC input port of the circuit.
Audio Circuit Mixer: 5 Ways of Building an Audio Mixer
https://www.wellpcb.com/audio-circuit-mixer.html
First and foremost, the audio signal enters the circuit through inputs 1 and 2. Secondly, C1 and C2 transmit the signal to VR2 and VR1. Also, you can use FET Q1 to adjust the audio signal. Finally, the modified signal goes through C3 then gets transmitted as an output signal at output pin S.
How to build an audio mixer - CircuitLib
https://www.circuitlib.com/index.php/tutorials/product/39-how-to-build-an-audio-mixer
Build an Audio Mixer - Projects
https://www.allaboutcircuits.com/projects/build-an-audio-mixer/
The full output of the mixer circuit is Vout = -Rf(V1/R1 + V2/R2 + V3/R3 . . . + Vn/Rn). Thus, by making RF larger the gain can be increased. The other option is to make the resistor in the channel(s) smaller, but you are already using a potentiometer that can become very small, thus increasing the size of Rf is a better choice.
4 Channel Portable Audio Mixer Circuit Diagram
http://www.learningelectronics.net/circuits/4-channel-portable-audio-mixer.html
The schematic of this circuit is drawn as a stereo unit to better show the input Main Fader and Pan-Pot connections. The TL062 chip contains two TL061 op-amps into the same 8 pin case and is wired as two virtual-earth mixer amplifiers having a voltage gain of about 4, to compensate for losses introduced in the passive Pan-Pot circuitry.
Making an Audio Mixer : 20 Steps (with Pictures ...
https://www.instructables.com/Making-an-Audio-Mixer/
The right channels can be mixed in identical fashion. You are left with a two channel stereo mixer. This schematic shows the left channels and the right channels being connected together through resistors. The three boxes that look like strange renderings of potted flowers are actually audio jacks with their barrels connected to ground.
Simple Mixer Schematics - ALL ELECTRIC
http://www.all-electric.com/schematic/simp_mix.htm
If we had two signals to be mixed. The first was 2 volts and the second was 3, the output should be the sum of these two voltages. 2+3=5. If on the other handthe two voltages were 2 volts and -3 volts then the output would be -1 volt. We arenow subtracting 3 volts from the +2 volts leaving -3.
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