thank you dave ..
then .. I will start packing properly

final test
clamp diode change
GDT changes

thanks for the response Dave ..
but is it safe to connect directly to the secondary ..?
because with the antenna, I only got a 2cm small arc

Mads ... thank you.
did not think of me about my little transformer ..
okay .. I try to enlarge the transformer and capacitor ..
all this time i just tried how big spark without paying attention to suplay ..

ever i try 220v direct from power supply .. but mosfet explodes ..
with the same circuit, but using transformer, mosfet is safe ..
I do not know why..
 
I will buy a larger transformer
thank you .. a valuable lesson

Hi Mads Barnkob .. best regards.

Thank you for the compliment..
it is true .. i run in low bps,
when bps is high, the spark will shorten ..
well that's why i ask for advice to you all here ..
how to improve this sstc capability ..
without prejudice to its simplicity ..
because this is just an exciter slayer that runs in class E and uses an interrup.
I do not have an oscilloscope .. 
all I raft by looking at schemes scattered on the internet ..
including on your website ...

i try raising bps ..
spark looks shortened ..

OneKone .. best regards.
I inspired your coil .. unfortunately I only have
pvc tube 110mm x 290mm .. and enamel wire 0.25mm ..
i will try to make it after sometime ..

Hello all.. 
I am from Indonesia
this is actually my old project ..
I just add the interrup and raise the voltage ..
please correct and be inputed for better.
sorry .. i am not good at english 
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