Institute Newton C. Braga

Circuit Bench

Synchronized Triac Switch (CB26127E)
This zero-crossing circuit was found in the 1989 Radio Electronics Experimenter. The Triac must be...
455kHz Oscillator (CB21137E)
This oscillator uses a small IF transformer taken from an old transistor radio. FET admits...
Street Light (CB16466E)
This circuit is used to run light bulbs around street signs. Incandescent lamps up to 40 W are...