Found in a 1980s American documentation, this circuit is based on the common CMOS series activating a relay. The circuit is double-timed.
This circuit was obtained in a 1975 documentation. It is intended for old vehicles that still use...
With this circuit it is possible to select transistors and their compliant test. Or circuit...
This power supply circuit with selectable voltages was found in the June 1979 issue of Radio...