This circuit was found in a 1967 RCA publication. The circuit uses components from that time, and can be used with loads up to 240 W.
The CK722 transistor used in this circuit is one of the first commercial types in the world. The...
This automatic dimmer for incandescent lamps was found in a European publication from the 1980s. The...
This traditional doubler configuration with the 555 can be found in other articles on the author’s site....