What an idiot
I was. 900 volts with an amp or more of current capacity
behind it is extremely dangerous.
"Self-entertaining" comes to mind :)
Hmmm...
One time we needed a 600V (or so) supply with a very low noise. We filled
a suitable metal tube with those 12V batteries that are about the size of
N cells, all in series. 50 of them in all. The result was a low noise
600V supply, it was also totally lethal!
-tony