This roughly 30Kvdc output power supply was constructed from common materials such as PVC pipe, spark plugs, flyback transformer from discarded TV set and "doorknob" capacitors. Even recycled plastic bottles where used as insulators. The filament output is used the primary at 7-8VDC @ 2A 2Khz pulse. A demo with a solar panel is done to show of effictive this is. (less info)