This traditional configuration can provide high voltages for an electric fence, for science experiments or for lighting neon and fluorescent lamps. The transistor must be equipped with a heat radiator. For consumption, medium or large batteries or batteries should be used in the supply. The transformer has 110V or 220V primary and 6 to 12V secondary with 100 to 300mA. The C2 capacitor must eventually be changed to obtain the best performance from the circuit.