You beat me to it, Martin, but it's a good thing I was interrupted before sending my reply. If nothing else these links saved me the trouble of taking photos. 8D
> On Feb 16, 2022, at 4:39 PM, Dekatron42 <[email protected]> wrote: > > 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. Martin, thank you very much for finding that site!!! *_* I have two of those stars. One of my other hobbies is collecting old Christmas lights and I have a number of Soviet "New Year's" (most definitely not "Christmas") lighted decorations. I use a variac and a 1:2 transformer to get 220V RMS. > On Feb 16, 2022, at 2:09 PM, Andrea Zambon <[email protected]> wrote: > > I just bought a few of these IN-3B lamps (not the regular IN-3, these are > much longer, see the pictures). I've seen them referred to as both IN-3V (ИН-3В) and IN-3B (ИН-3Б) on eBay but this Russian site is a gold mine of new info! 22kΩ it is. > The blue "haze" in the glass is a camera artifact. In person they have the > regular neon orange color. My first thought is that the fill gas contains some mercury because the blue glow is coming from the glass itself. I have a mercury spectral lamp and when I first powered it up the glass fluoresced much brighter (in the visible spectrum) than the ionized mercury. Perhaps the power supply I had on hand was supplying too much current. If so, I only used it for a brief time and hopefully no harm was done. Also, digital imagers are sensitive to UV and direct exposure to a UV source can appear as a bright magenta, meaning that UV is either passing through the red filters in the Bayer matrix or that the filter material itself is fluorescing. I need to do some research on that as it spoils my Halloween videos. I have camcorders with both CCD and CMOS imagers and even with the exposure greatly reduced a 15W "black light" fluorescent tube is so bright that the blue and red pixels are fully saturated at 255. Terry Bowman, KA4HJH "The Mac Doctor" "If only you could see what I've seen with your eyes."—Roy Batty, Blade Runner -- 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 [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/F9872A91-5A02-485C-8B8D-0720488D2AE4%40gmail.com.
