i have one of those once for 2EUR or so. really usefull! i measured the grid voltage once, but my fluke multimeter maxed out at 1000V DC (!!!) so its really beefy. if you dont care about safety, you could even cut out that discharge resistor at the capasitor. keeps the voltage up even more. you might want to replace the low-end low voltage capacitor with a real high voltage one. the bigger the better. then this beast really vaporizes whatever it touches.