This circuit was found in a 1970 American publication. The FETs are power types according to the desired output current. The operational can be replaced for modern equivalents.
This circuit for automotive use was found in American documentation from the 90s. The circuit uses...
This circuit was found in Delco documentation from 1966. The components are from that time....
The CMOS TLC555 can be gated from external CMOS circuits using the configuration shown here. The...