WYsixK wrote: > What spacing do I need between capacitor plates (air dielectric) for > 12000 volts and where can I find tables for this stuff? > > Thanks! > Michael If you check www.cardwellcondenser.com you'll find specs for their caps at various voltages. They don't go to 12kv but they list a gap of .250 for 9kv. Frank W2FCA