Hi Folks.
I too am interested in lighting a few different regulator tubes (0A3, 0B3, 0C3, 0D3) to show differences in fill gas colors and whatnot in nixie/dekatron/analog logic lamp applications. I have a few laying around from various projects and would probably just run them all off of ~200V+ with a limiting resistor, but there's got to be a better way. I'm thinking A/C or reverse polarity for more glow, for starters... I'm trying to finger out what kind of limiting I'd need to use with no resistive load.
Any ideas? Cheap and easy regulator tube glow?
PS the links above are DOA. I'd be glad to post anything I find in one place for reference.