Yes, this is the Saratov Factory samples. In 1990, they tried to apply different phosphors. So, at now time Saratov's Factory are destroyed. You can look at the different exhaust tube in comparison with the usual green.
P.S. I also pumped different gases in IN-18 in Russia. https://radiokot.ru/forum/viewtopic.php?f=17&t=153883&view=previous ср, 24 окт. 2018 г. в 19:50, jb-electronics <[email protected]>: > > I think so, they must be some experimental lab samples, I have never seen > these in more than ten years. Jens > > > On 2018-10-24 4:26 a.m., John Snow wrote: > > Interesting. Different phosphor coatings? > > On Tuesday, 23 October 2018 17:24:50 UTC+1, Jens Boos wrote: >> >> Hey folks, >> >> Have you seen these VFD tubes on Ebay? http://www.ebay.com/itm/223200328320 >> >> It looks like a quite rare find, I have never seen those before. >> >> Best wishes >> Jens >> >> >> > -- > 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 post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/5563aa03-03f5-4426-980d-018ff7d5e4bf%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > > > -- > 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 post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/64b7f556-aff2-06a5-fba2-613b75fa21b1%40jb-electronics.de. > For more options, visit https://groups.google.com/d/optout. -- 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 post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAJPO2iKT5pcFg5y60U7ucnuKakSNXwL%3D1G%2BD6yN1sJWXNYcuww%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
