Never on the mesh (yet), but I did see something similar when I had one of the numerals wired as the anode rather than the actual anode (in my defense, the actual anode pin was missing).
I would check that it is wired correctly, including possible shorts. Then check it on a different QTC mother board to see if it is the motherboard. Then check a different type of tube on the original motherboard to see if you get the same effect (another check of the motherboard). I also don't have a bench supply - it is on my list - but in the meantime, I use a NCH Nixie power supply and a breadboard. The power supply is rock solid and the voltage is easily adjustable. Good luck. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/cf231636-a87f-42d3-a67a-516d3249aba6%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.