We found this circuit in the February 1983 issue of Radio Electronics magazine. The 4-digit circuit is based on dedicated integrated circuits of the time. The power supply is not shown.
We found this circuit, which should only be used with incandescent lamps. In the Motorola Linear...
We found this circuit in the Radio Electronics magazine of May 1977. The circuit has the frequency...
This pulse-synchronized oscillator was found in a Mullard manual from 1960. The transistors are...