what kind of gas has a green color ?
i once had a cadmium neon laser,it would not fire a beam but the tube did glow the most fantastic color of green close to aquamarine so try neon cadmium gas mix http://www.visualphotos.com/image/1x6037042/emission_spectrum_of_cadmium http://www.lamptech.co.uk/Spec%20Sheets/Osram%20Spectral%20Cd.htm Helium-Cadmium (HeCd) 325 nm are three examples. These lasers have particularly narrow oscillation linewidths of less than 3 GHz (0.5 picometers),[4] making them candidates for use influorescence suppressed Raman spectroscopy. Instrument Resources of America <iracosa...@hughes.net> Jan 10 08:41AM -0800 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: "Dalibor Farný" <dali...@farny.cz> Jan 10 06:29PM +0100 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" < John Smith <mrstanle...@gmail.com> Jan 10 12:55PM -0500 Most likely Krypton gas...usually the glass is stained to enhance the green color. Instrument Resources of America <iracosa...@hughes.net> Jan 10 10:30AM -0800 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: "Dalibor Farný" <dali...@farny.cz> Jan 10 08:35PM +0100 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 -- Dalibor Farny ---------------------------------------- phone: +420 724 321 571 http://www.daliborfarny.com blog: http://dalibor.farny.cz "gregeb...@hotmail.com" <gregeb...@hotmail.com> Jan 10 12:23PM -0800 If you want green, I suggest green glass and Xenon gas (numerous spectral lines in the green region), and perhaps a bit of Helium. I would avoid Neon because it's mostly yellow/orange/red spectra. John Smith <mrstanle...@gmail.com> Jan 10 03:29PM -0500 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. "Tidak Ada" <offl...@zeelandnet.nl> Jan 10 09:39PM +0100 According to Wiki, Krypton should emit a violetish colour. I guess also UV. So maybe you have seen a krypton discharge lamp with an Uranium glass mantle. The green colour will be due to fluorescence evoked by the UV-light that excites the uranium atoms to send off green light. @Dalibor: Beware of uranium glass it is extreme expensive, however, may be in your country it might still be made (Bohemia?). eric Van: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] Namens John Smith Verzonden: vrijdag 10 januari 2014 18:56 Aan: neonixie-l@googlegroups.com Onderwerp: Re: [neonixie-l] Re: What to do with a 0B3 regulator tube ? Most likely Krypton gas...usually the glass is stained to enhance the green color. On Fri, Jan 10, 2014 at 12:29 PM, Dalibor Farný <dali...@farny.cz> 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" <iracosa...@hughes.net> 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, greg...@hotmail.com wrote: 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. Instrument Resources of America <iracosa...@hughes.net> Jan 10 04:08PM -0800 Well I'm back from checking the following VR tubes in my Hickok, 0A3, 0B3, 0C3, 0D3, and their seven pin miniature equivalents, which in reality I probably didn't need to check. NO green ones. I swear that I remember a green colored VR tube, maybe not at this point. It's heck gettin old, definitely not for sissies. LOL. And,,,,,,NO,,,, I'm NOT confusing it with the green wilamite in shadow eye tubes, (aka electron ray indicators). Anyone out there remember a greenish colored VR tube, or am I losing it? Ira. On 1/10/2014 9:29 AM, Dalibor Farnı wrote: Charles MacDonald <cm...@zeusprune.ca> Jan 10 07:24PM -0500 On 14-01-10 07:08 PM, Instrument Resources of America wrote: > confusing it with the green wilamite in shadow eye tubes, (aka electron > ray indicators). Anyone out there remember a greenish colored VR tube, > or am I losing it? Ira. Different makers probably used different gas mixtures to make their VR tubes. Neon and argon together produce a range of colours depending on the proportions. http://en.wikipedia.org/wiki/Gas-discharge_lamp claims that Krypton will give a green glow. -- Charles MacDonald Stittsville Ontario cm...@zeusprune.ca Just Beyond the Fringe http://Charles.MacDonald.org/tubes No Microsoft Products were used in sending this e-mail. John Smith <mrstanle...@gmail.com> Jan 10 08:01PM -0500 This is getting interesting...never have seen a pure green ionized gas. There is a possibility it may have been a hybrid gas mixture. Since Helium produces a pale yellow and mercury will produce a blue color...possibly it was a mixture of a few types of gases. Also some ionized gas will produce different colors at different energy (voltage ) levels. Pressure also enters the equation. As far as any commercial vacuum tube regulators I have yet to see a pure green color. On Fri, Jan 10, 2014 at 7:08 PM, Instrument Resources of America < John Smith <mrstanle...@gmail.com> Jan 10 08:10PM -0500 I have seen thyratrons glow with a greenish tint though: https://www.youtube.com/watch?v=ZCR-1ELTjaw NeonJohn <j...@neon-john.com> Jan 10 08:14PM -0500 On 01/10/2014 08:01 PM, John Smith wrote: > different colors at different energy (voltage ) levels. Pressure also > enters the equation. As far as any commercial vacuum tube regulators I have > yet to see a pure green color. What we neonists would give for a pure green gas! Unfortunately there isn't one. Krypton does a rather boring greenish tinged dull white. Neon has an excitation state that decays with a green photon but it's very hard to get it that excited without laser light. Copper ion lasers do a beautiful green plasma but that's not something that could be used for display purposes. Unfortunately for the color green, it's either colored glass or phosphor. John -- John DeArmond Tellico Plains, Occupied TN http://www.fluxeon.com <-- THE source for induction heaters http://www.neon-john.com <-- email from here http://www.johndearmond.com <-- Best damned Blog on the net PGP key: wwwkeys.pgp.net: BCB68D77 Instrument Resources of America <iracosa...@hughes.net> Jan 10 05:20PM -0800 Or I hate to mention LED's LOL Ira. On 1/10/2014 5:14 PM, NeonJohn wrote: Instrument Resources of America <iracosa...@hughes.net> Jan 10 05:34PM -0800 Green filters????? Ira On 1/10/2014 5:14 PM, NeonJohn wrote: threeneurons <threeneur...@yahoo.com> Jan 10 11:36PM -0800 You mean these ? <https://lh4.googleusercontent.com/-5JTPn4_3LSE/UtD0HbxGG5I/AAAAAAAAMJc/ixnSQDXbX64/s1600/Green_Nixies.jpg> If it was April 1st, I'd keep you guessing. Just some fun with Photoshop. Ins1 socket John Laturnus <johnlatur...@gmail.com> Jan 10 06:09PM -0800 Hi everyone, I'm working on my first clock and am using ins-1 neon lamps for the dot separators. Does anyone have some advice on a mounting method? I was thinking twist in sockets would be good, but I haven't been able to find a place that sells empty sockets I could solder them into. -john -- 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. 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