We found this circuit in the October 1978 issue of Radio Electronics magazine. The magazine article describes its assembly. The circuit is a 6-digit circuit using components from the time.
This circuit is designed to control static loads fed by direct voltage. The circuit is from...
The 4046 PLL is uncommon these days. This circuit was found in the August 1994 issue of...
This two-transistor circuit was found in American documentation from the 1990s. The circuit can use...