This transistorized circuit is powered by a voltage of 6 to 12 V providing high voltage for a neon lamp. The circuit is from a 90's publication. Modern equivalent transistors can be used.
This circuit was found in old FET documentation, but it applies to any modern common JFET. The...
The different aspect of this source is the use of a 12 V lamp as a current regulator together with a...
This circuit makes simultaneous control of two up to 150 W incandescent lamps. The circuit is half wave...