Hey Mads, a little update.
My coil is acting completely weird, I'll try to sum it up as best as I can.
I wired it up and I wasn't getting anytning, no power drawn, nothing.
Moving the antenna around however did change something.
For some reason, the only way I can get the coil to do something (and it's just a small corona) is by having the antenna extremely close to the breakout point, so close that it'll just arc into it, which is weird.
But the weirdest behavior was that once I turned off the variac for tests, as soon as I would touch anything (I even got shocked), the coil would fire a small spark.
Even touching the main smoothing capacitor with the multimeter terminals did that.
Thoughts ?

Ok, I adjusted the duty cycle, this is what I get
No load
Resistive load

Well, first of all, hi everyone, and hi Mads! Been a fan of your work for a while, hence why i'm trying to make a teslacoil based on your SSTC II project.
So far I've wound the coil, assembled the driver circuit on breadboard, and assembled the full bridge.
I haven't done too much testing, but I'm trying to get the GDT waveform right.

The tests I've done so far included varying the damping resistors and GDT inductance, by going from 15 turns to 20, did improve it a bit, from this


to this:


The core I'm using is an N30 core, with around 4800 mH of magnetic permeability.
The waveform also seems to change a little with a slight resistive load (around 2A) on the bridge, from the one above to this (which correct me if I'm wrong, is unusable).



This is the waveform i get when the GDT is not connected to the bridge


I think the problem might be a low GDT inductance.
Any suggestions?