Found in a 1960s documentation, this circuit uses a transistor to drive a relay as well as a set of neon lamps with high voltage power supply.
November 2016 - Bourns RLB1112V4 series radial inductors are available for immediate supply from...
This circuit was found in a Hands-On Electronics from the 90's. The FET can be any general...
This circuit can be adjusted to time timer intervals up to1 hour using a 2,200 µF capacitor and a...