This circuit is from a 1992 publication and is based on CMOS technology. The circuit is powered by a 6 V source and the displays are of common cathode.
This circuit was found in Japanese documentation from the 1960s. It is a commercial circuit with...
This circuit with 5 V power was suggested by Motorola's Linear Databook of 1990. The circuit has...
This circuit was found in an English magazine from 1977. Signal inputs and outputs must be...