This automotive circuit was found in the September 1992 issue of Radio Electronics magazine. The circuit directly drives a relay that must have a coil resistance greater than 65 ohms.
For triggering high-powered loads connected to the power grid, nothing better than using TRIACs. For...
This tube circuit is from an 80's documentation. The filter is of the selective type and the...
This circuit was obtained in a 90s EDN. The components used are from that time. The voltage...