This circuit makes use of unusual components today. We found it in General Electric documentation from the 1980s. The circuit operates with modulated optical signals.
The energy that powers this radio's amplifier circuit is obtained from the signal itself. The coil...
Based on the BA1404 integrated circuit, this circuit was found in the July 1992 issue of Radio...
This circuit can linearly control the temperature of showers, taps or heaters up to 2 500 W. The...