This circuit can source up to 1,000 V from a 9 V battery. Output current is very low, some microamperes only, but the circuit can be useful in electrostatic experiments or as a ionizer. The source must be cells type C or D, since the current drain is high. The transformer is a type rated to 110 V or 220 V to 6+6 V with 200 to 500 mA.
