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.
This circuit performs the multiplication of voltages without considering its signal. The circuit is...
Found in an American publication from the 1980s, this circuit is designed to regulate the voltage of...
This damped oscillator generates percussion sounds played on a small amplifier. The circuit mimics...