This circuit from Delta Products was published in the May 1974 Radio Electronics magazine. The circuit consists of a capacitive discharge ignition for 12 V vehicles.
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....