This circuit was found in the February 1983 issue of Radio Electronics magazine. It is a 4-digit circuit with dedicated integrated circuits, with no power supply indicated.
This is the suggested transmitter circuit for the CB16880E. The emitting LED must be a...
This timer activates a relay after a time interval of up to 15 minutes has elapsed, starting from...
This powerful regulator, shown in the figure is for 5V (TTL) is suggested by Motorola and makes use...