We found this circuit in a 1962 publication by General Electric. The circuit applies to common fluorescents in the 117 V power grid but can be changed to other grid voltages.
This circuit uses a capacitor to store energy. The capacitor is charged by closing S1 by a moment. Them,...
This circuit is both a signal injector and a signal follower. A key selects the operating mode. The...
The difference between this circuit and the previous one is that it uses PNP transistors. The...