Hi list, hi Steve, hi Teslalabor, thanks for replies! I would like use a "big" cap to increase the Q of circuit and, in my "novice" opinion the output voltage (proportional to sqrt ( C_prim ) ) should increase. Anyway no problem, I might try with 2.2 nF (32kV)! _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla