Single power supply modular audio mixer Schematic and printed circuit board for a single power supply audio mixer, made of a master module and many line in or mic modules.
Mixer: main board The schematic and the printed circuit board for the main board of the single power supply modular audio mixer
Mixer: line input board Schematic and printed circuit board for the line input board, part of the single supply modular audio mixer
Mixer: mic input board Schematic and printed circuit board for the microphone preamplifier board, part of the single power supply modular audio mixer.