Found in a 1949 Radio Electronics, this 4-tube circuit was fed directly from the mains with a half-wave rectifier.
This circuit was found in a 1970 American publication. The FETs are power types according to the...
This very simple brake light circuit is activated with the brake lights, just connecting it by...
This voltage regulator from STMicroelectronics provides a 1,2 A current in the voltage range from...