Based on Radio Shack 276-137, this circuit was found in the December 1995 issue of Electronics Now magazine. The circuit drives an LED but could use a relay instead.
Due to its low working voltage, this circuit of an old EDN can be associated with a...
This circuit was obtained from a 90s Elektor Electronics f. The output current of each sector is 1...
This circuit produces a signal that has the waveform of the sound produced by or near the banjo....