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 is from old American documentation, using a regulator integrated circuit that is...
Very simple, this radio control circuit for short distances was found in an Electronic Design from...
This CMOS generator with the 4018 IC was found in a November 1976 Radio Electronics magazine. It...