I definitely see your point. As you probably guessed I'm a bit skeptical to this entire circuit. There are too many unknown variables here. Ill have a look at the probes but I'm guessing Ill end up bringing it to a proper high voltage lab before turning the darn thing on and try to fix it.

Thanks :) I'm considering using an op-amp buffer circuit in front of the probes rather then expensive active probes. This way I will know what goes in to the picoscope and if anything goes wrong the buffer will blow up rather then the scope. It will probably mess with my signal but I don't need the ...

Hi. I want to measure high voltage signals. Anything from mains 230V up to maybe 5KV or more. It's some sort of crazy resonance circuit. But I am a bit skeptical to hock up my old Picoscope 2204 to that kind of voltage. Do any of you have experience doing this? Can I use a regular high voltage probe?