William Blair wrote:
Would not a
green & red Ne-2 would fit the mood
better.
If you have the HV why not go nixe tube?
I'm trying to use 12V as B+.
Why not go 45V Volts or so... I know you need another supply
but I don't think you can get reasonable load line from 12 volts.
(A quick look at a few random tubes shows you have the tubes
very close to cutoff under -1V on the grid)