This circuit has the spark duration controlled by a 555 timer. The circuit was found in the 1990 special issue of Radio Electronics Experimenter magazine.
This circuit was originally intended for reading movie soundtracks. The circuit is from 1967 and...
This circuit is from an Italian magazine Elettronica 2000 of September 1987. It is a pulsator for...
Published in a February 1978 Radio Electronics magazine article, this digital circuit uses some of...