This CMOS logic-based circuit was found in the April 1974 issue of Radio Electronics magazine. The circuit is based on a period display and has hour and minute indications.
This circuit is from a 1987 magazine, but it can still be easily assembled, as the components are...
This circuit uses only transistors, producing a pseudo-sequential effect with 6 LEDs. The circuit is...
This circuit is from an Italian publication from 1988 but can still be easily assembled....