This circuit was found in a Radio Electronics magazine from June 1962. The circuit is for cars of the time with platinum ignition. The indication is made on an analog instrument.
The circuit shown is an AND gate with three inputs using a comparator of the four existing in an...
This circuit, which can only be used with incandescent lamps, is adapted to the common wall...
This passive circuit was found in the March 1995 issue of Elexctonics Now magazine. The circuit is for...