Original poster: Kreso Bukvic <kreso.bukvic-at-kc.htnet.hr> Yeha. Finaly work from 30 V bench power supply it makes nice 2 cm sparks to air. YEHA finaly i have a SSTC. Folowing people deserve to be mentioned because this SSTC would never work without them: Terry Fritz and John Tomacic donated parts Steve Ward was tehnical support Yeha Im so excited i cannot wait 220 V Best Regards Kreso Bukvic