I also have 10kV 1mA bricks that we save from scrap that I can use for this. We have rather a lot of them and we don't know what to do with them all. Got some 20kV ones too. They scare me more. Arc fault testing was spicy. 

 @d4b81373 I've recently been involved in setting up a test stand for some 20kV power supplies that will deliver a full amp!  It's been interesting, to give it an extremely euphemistic gloss. 

 @73fd1d93 Oooh. Spicy. 

 @73fd1d93 Got a spare psu for that? Asking for me.

I think you were gone before we did a 20kV source supply. 

 @d4b81373 We run them 5 a time in parallel to run 100kW 915MHz magnetrons, so we have a fair few about the place.  I think the 20kV supplies were at least being looked at when I left, but it is a decade ago. 

 @73fd1d93 I have to ask what exactly you were trying to do with that? I have an idea but I like confirmation. 

 @d4b81373 Ask me over a beer. 

 @73fd1d93 I never see you anymore! 

 @d4b81373 Yeah, I don't get out anything like as much as I used to.  Small child will do that! But let me know next time you are out in Chester and I'll shout you a beer and shock you with stories of piss poor high voltage practice 

 @73fd1d93 I doubt you'd shock me.