This indicator with the integrated circuits CA3162E and 3161E was published in the July 1990 issue of Radio Electronics magazine. The circuit can be used as a basis for 3-digit projects.
Suitable for alarm applications, this circuit is a modification of the previous one. We found it...
The game is an adaptation of the real version where the toothpicks taken are replaced by red LEDs...
This old configuration using a germanium transistor was designed to operate with variable...