This is one of many possible touch switch configurations using CMOS integrated circuits. The circuit is from a 1980s American documentation. The power source must be isolated.
This circuit was found in the 1969 RCA thyristor manual. The circuit has a limiter (clipping) with two 12...
We found this receiver for medium and short waves in a publication from the 1980s. The medium wave...
This circuit uses a 741 operational amplifier that must be powered by a symmetrical source of 6 to...