I went to the store to buy the diodes and the mosfet and i ended up buying some fuses and an igbt caled irgp30b120kd-e 1200v 30 amps
I was afraid that the irfp250 burned because a spike than i will find how to make a snubber well avoid burning this igbt witch was a bit expensive. .
I will solder everything up and i show you the scope
You will see the spikes... than
i need to add the second diode to create the step charging effect...
than is a matter of inputing voltage up to here the hydrogen will blow out of the bottle...
My friend engineer is going to make some tubes for me i think he will make three tubes sets with 1mm gap...
This way i can vary the capacitance...
The unipolar pulses are really interesting as seems full wave bridge rectified but the pulse is being generated by the collapse of the field in the coil.. as together with the spike...
shortly more to come
wish me luck