This LED bar graph circuit was found in the October 1980 issue of Radio Electronics magazine. The circuit shows how to change the LED drive values.
Found in American documentation from the 90s, this circuit can be used as a shield with the...
This simple TTL electronic dice uses common anode displays. The circuit is from a March 1975 Radio...
This circuit can be found in other projects in this site. When S1 is open the circuit produces...