This circuit produces a signal that has the waveform of the sound produced by or near the banjo. The circuit is from an 80's American documentation. The signal must come from an ordinary guitar.
This grounding test circuit was found in an American 80's documentation. The circuit is for the...
Suggested by General Electric, this circuit with triac is able to reverse the rotation of a motor...
This circuit is from an Italian publication from 1988, but it can be assembled today because the...