This circuit was found in the January 1991 issue of Radio Electronics magazine. The circuit uses integrated circuits of the time and the coils depend on the tuned bands.
This circuit can linearly control the temperature of showers, taps or heaters up to 2 500 W. The...
The first configuration we show is a flip-flop that can be triggered using two pressure switches of...
The frequency of this oscillator reaches a few megahertz with the indicated transistor and depends on...