Found in an Electronic Design from the 80s, this circuit uses an unusual component today, the regulator integrated circuit. MOSFET can be almost any type.
This switched filter was found in the 1969 documentation. The FET should be current-matched and eventually...
This circuit was found in a 90s Electronics Now. The circuit can use a TIC106 for the SCR....
This circuit is from 2005 documentation. It automatically starts an irrigation pump when the...