The circuit shown is from Motorola's 1990 Linear Databook. Components are not currently common. An equivalent can be used for the transistor.
This 4-digit counter was found in a 1997 documentation. It uses CMOS integrated circuits and can...
This circuit provides a delay that depends on the components on the RC network. The formula for...
This circuit was found in an Electronics World of 1968. Its purpose in triggering a relay when the...