Self oscillating HFSSTC

[曹靖]

Hello guys. I haven't come to the forum to post for a long time. I used IRFP350 to play Self-oscillation HFSSTC in my spare time, and the effect was good to show you. The calcium sodium glass sheet covered graphite rod tip discharge MOSFET is a 400V16A silicon tube in IRFP350. Circuit reference from Steve Ward's HFSSTC

[davekni]

Circuit reference from Steve Ward's HFSSTC

Looks like a circuit Steve used to generate plasma rings in a xenon-filled globe.  Nice adaption to HFSSTC use.

[曹靖]

Looks like a circuit Steve used to generate plasma rings in a xenon-filled globe.  Nice adaption to HFSSTC use.

I couldn't find Steve Ward's article on self oscillating HFSSTC. I only saw the circuit diagram posted by the blogger in the circular plasma ball video. "Steve Ward". It could be due to local area network or other reasons that I couldn't find the results

[PowerTech]

Good result 
Could U please explain, which point in the schematic is connected to breakpoint(flame) ?
Want to reproduce this device.

[曹靖]

Good result 
Could U please explain, which point in the schematic is connected to breakpoint(flame) ?