This SCR circuit is intended to control an AC load with a low current switch. This switch can be a reed sensor. The load depends on the SCR.
This traditional circuit with the 555 was found in a 1984 documentation. In this oscillator, the...
This basic configuration aof a touch switch controls a relay. Power supply can be 5, 6 or 12 V...
This circuit uses two Raytheon RC4558 operational amplifiers that are similar to the 741. The...