This circuit simulates the signal produced by a muscle, serving to adjust medical equipment. The circuit is from the 1968 Mullard. Transistors support modern equivalents.
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...