> Now it's my ESD tester. The 50kV output is impressive, and any non- > disposable electronics should stay well clear. An inverter would almost > certainly get fried as it's in the path of the return current. If that is all you are wanting it for why not use a motor vehicle ignition = coil with a capacitor discharge ignition circuit? That would generate that = sort of output voltage, and can generate some fat sparks. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .