I have a bunch of HV stuff coming in this week, starting off with this induction coil:
Click to enlarge
I got it from Sci-Supply.com. I'm going to be powering Crookes tubes with it so I didn't pay the extra money for something bigger. Once you get over 15-20kV X-rays become a hazard. I have enough problems already. Like the fact that my Crookes tube order is sitting in a facility in Michigan and not moving. So much for Priority Mail.