This circuit makes use of a stroboscopic tube, a component that no longer exists today. The circuit is from the 70's and can be adapted to use mains voltage.
This one-digit counter is part f the samples bench of the MultiSIM in one of its versions. The...
The FAN1117A and FAN1117A-5 integrated circuits from Fairchild consist of fixed and adjustable...
This circuit was found in the February 1970 issue of Radio Electronics magazine. The integrated circuit...