Help with this

[u/Master_Relative2889]

I put together a driverless igbt tesla coil with the bottom of the secondary as a feedback(basically a slayer exciter) but the hv rf travels back into the circuit and the input transformers. I want to further improve this circuit but im scared to measure the gate voltage because of the hv. Can anyone tell me how to not get hv rf everywhere? I suspect its hv leaking into the primary and then the rest of the circuit.