This Russian website has a little information on them but even there they are not sure of their manufacture and data - they are used in Christmas lighting and also some photo lamps.
https://old-lighting.ru/ru/content/3b-1-gazotron some more items using them: https://old-lighting.ru/ru/exposition/3230/exponat_luminaire /Martin On Wednesday, 16 February 2022 at 20:09:59 UTC+1 andrea....@gmail.com wrote: > Hello everyone, > > I just bought a few of these IN-3B lamps (not the regular IN-3, these are > much longer, see the pictures). > > The problem is that I searched left and right and I couldn't find any info > on them, at all. They don't even have any marking on the glass bulb. > > Does anyone have any info on them or, even better, a datasheet? In the > pictures I was running them at around 1.5mA, but I have no idea whether > this is an acceptable figure for these lamps. > > The blue "haze" in the glass is a camera artifact. In person they have the > regular neon orange color. > > Regards, > > Andrea > > [image: 20220216_193152_small.jpg] > [image: 20220216_193522_small.jpg] > -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/0f73b486-6349-4f6d-ac32-109e465d7bbbn%40googlegroups.com.