The really small neon bulbs are sometimes stained to add color. On neon signage sometimes gas mixes are used and also various metal halides are mixed with the gasses. The large high voltage vacuum tube rectifiers usually have mercury when ionized neutralizes the space charge. The voltage regulator tube have neon and argon mostly.
On Fri, Jan 10, 2014 at 2:35 PM, Dalibor Farný <[email protected]> wrote: > Hi, from what I saw on internet, the krypton is more white-blue > colour.. The green colour gas is something what I would really like to > try in nixies, especially if it is inert gas.. There are some photos > of discharge in krypton, but who knows how accurate the photo is: > http://www.periodictable.ru/036Kr/Kr_en.html > > Dalibor > > 2014/1/10 Instrument Resources of America <[email protected]>: > > Well Dalibor, now you have me wondering. Last time I actually worked with > > any VR tubes was years ago, and I swear that one of them had a greenish > > color to it. It may have been due to a 'mix" of more than one gas. I'm > going > > to fire up some of the VR tubes that I have and see if I do remember > > correctly or not. Stay tuned for more. Ira. > > > > > > > > > > On 1/10/2014 9:29 AM, Dalibor Farný wrote: > > > > What kind of gas produces green colour? > > > > sent from mobile phone > > > > Dalibor Farny > > www.daliborfarny.com > > > > Dne 10.1.2014 17:41 "Instrument Resources of America" > > <[email protected]> napsal(a): > >> > >> If you'd like other colors you can have white with Xenon filled tubes, > and > >> also orange and green with some of the other gas regulator tubes. Ira. > >> > >> > >> > >> On 1/10/2014 8:08 AM, John Smith wrote: > >> > >> Try some 866 high voltage rectifier tubes...more yummy purple glow.... > >> > >> On Thursday, January 9, 2014 7:19:37 PM UTC-5, [email protected]: > >>> > >>> I acquired a few of these for free (not a bad price), and their faint > >>> purplish glow doesn't produce much of a "wow" factor to show-off. I was > >>> hoping that reverse-polarity would produce more glow; no such luck. > Most of > >>> the interesting glowing is hidden inside the metallic area of the > tube. > >>> Even with higher current, the glow was barely affected. It's so dim > that it > >>> wouldn't even make a decent night-light. > >>> > >>> Any ideas out there ? > >>> > >>> Since these aren't rare tubes (yet...), I'm tempted to repeat an > >>> experiment I did in high school with a 0A2 regulator tube: I cranked > so much > >>> current thru it that the plate glowed red-hot, the glass softened and > due to > >>> the vacuum, and it shrank around the metal. Watching the poor tube > >>> shrivel-up and die made me laugh so hard I cried. > >> > >> -- > >> 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/bcc4a8ac-0110-487c-ac3c-2213e2bffe36%40googlegroups.com > . > >> For more options, visit https://groups.google.com/groups/opt_out. > >> > >> > >> -- > >> 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/52D022A2.4050902%40HUGHES.NET > . > >> For more options, visit https://groups.google.com/groups/opt_out. > > > > -- > > 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/CA%2BnkT5rtF5_jHqkUL2LiPMgCPtsi84wKGZbxrqBmcP0HDiVC%2Bw%40mail.gmail.com > . > > For more options, visit https://groups.google.com/groups/opt_out. > > > > > > -- > > 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/52D03C47.5000003%40HUGHES.NET > . > > > > For more options, visit https://groups.google.com/groups/opt_out. > > > > -- > Dalibor Farny > ---------------------------------------- > phone: +420 724 321 571 > http://www.daliborfarny.com > blog: http://dalibor.farny.cz > > -- > You received this message because you are subscribed to a topic in the > Google Groups "neonixie-l" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/neonixie-l/qv4fJAQ-KDc/unsubscribe. > To unsubscribe from this group and all of its topics, 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/CA%2BnkT5p8qo%2BzseWraXyjtFdppUkZmeztzgz7vF40weJKiDmG6A%40mail.gmail.com > . > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. 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