For more info of plasma management with application on wireless medecine and free energy, please see http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1256402716
As a reminder, the real plasma secret is to control three parameters in order to make chaos or non-linear or parametric oscillators going beyond classical Maxwell equations of electro-magnetism:
- voltage amplitude of flyback transformer
- pulse length excitation
- frequency of pulse length
N.B. Plasma ball was patented by Nikola Tesla in late 1800's as one plasma device without electrode wear & dangerous ozone O3 coming from air spark gaps.
P.S. Please be careful with fly-back transformer: very high voltage that can kill, strong Back-EMF so make sure to use isolator (4N25 or best IL610) between arduino pins output and mosfet or IGBT driver.