The special function of this touch volume control circuit is that after moving your finger away from the sensor(s), the output voltage of IC1 stays at that level. This voltage value is memorized by C2 ...

From a guitar hacking point of view, the two major parts that are interesting to us are the pickups and the volume/tone control circuit that lets you adjust the sound while playing. Today ...

Volume Control: An active volume control circuit with a balanced output eliminates the need for extra circuitry on the line outputs for a shorter signal path with lower noise. Decreasing the value of ...