This circuit supplies 115 VAC (not perfectly sinusoidal) from a car battery. The circuit is from a Radio Electronics from December 1968.
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....