This circuit is from an April 1988 Radio Electronics magazine. The circuit is retriggerable and has complementary outputs.
This circuit turns on an old cassette recorder when the telephone rings, thus enabling the...
This circuit was found in a Poptronics of the 90's. The circuit limits the load current to 0.6 A....
Incandescent lamps and heaters can be controlled by a low power switch using this circuit. The...