This multiple switching power supply was found in the April 1991 issue of Radio Electronics magazine. The MOSFET must be equipped with a heat sink.
This 4-competitor TTL speed game was obtained in a 1980s documentation, but can still be easily...
This powerful sound emitter used in defense to intimidate people was found in a 90s Popular...
This circuit triggers an alarm when the mains power is cut off. The circuit was found in the July...