This circuit was found in a 1967 US documentation. The FET is general purpose and the 6V zener. The circuit has a very fast switching action.
A Jacob's ladder is a high voltage effects device in which a spark passes between two V-shaped...
This 1975 circuit for automotive applications replaces the mechanical vibrator found in old cars...
This circuit can be used as shield or to drive powerful loads from low current switches such as...