For a day or two, I thought the double-NST power supply project might be superseded by something easier and better.
Had stumbled upon a pair of potential transformers at a local industrial auction house.
Nominal high side voltage: 14.4 kV - about the same as my biggest NST's.
Nominal low side voltage: 120 V - easier to deal with than 277 V..
Current limit: none. VA rating: 1500
High-voltage isolation rating: at least 50 kV, maybe it's 100 kV.
Those would be super easy to wire up with full-wave bridge rectifiers on each high side, connected in series, to make a deadly 40 kV (peak) fusor power supply.
Alas, I was too cheap, or not impulsive enough. Somebody else took the lot for $155 at the last minute. Plus 15% buyer's premium and then about 9% sales tax in Alameda County.
This forum is for specialized infomation important to the construction and safe operation of the high voltage electrical supplies and related circuitry needed for fusor operation.