18-05-2011, 03:52 PM
Easy, big transformer powered by my variac so the heater voltage could be set appropriately. Heater current is 15.2 amps at 16.8 volts !! I ran it at 10 volts though as I want them to last when I finally implement my sculpture idea ! They produce a wonderful orange glow on 10 volts. Didn't bother with the HT though, had nothing on the bench that would produce 60KV !!
