Re: [neonixie-l] Re: What to do with a 0B3 regulator tube ?

Fri, 10 Jan 2014 10:31:06 -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:


What kind of gas produces green colour?

sent from mobile phone

Dalibor Farny
www.daliborfarny.com <http://www.daliborfarny.com>


Dne 10.1.2014 17:41 "Instrument Resources of America" 
<[email protected] <mailto:[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] <mailto:[email protected]> 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.


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