Hi,
Aleksander Zawada - whom most of you will know for his homemade Nixie
tubes - uses 1% Argon in Neon. But I do not think that the amount of
Argon in the percent range is too critical, since argon is only a very
small part of the penning mixture and is only used to lower the
breakdown voltage.
What do you think?
I'm having this discussion at the moment with a neon specialist - the
Penning mixture varied, as did the baking, pressure, type of glass&
level of Hg doping. Some tubes had getters which only fire once, so
refilling, which is what I'm investigating, is non trivial. Its a
completely different process to that used for neon signs...
Well, those are industrially made tubes. I am shooting for homegrown
tubes that will last a couple of hundred hours, not more. Those tubes
work without getters and without hg as well.
So I just have to start somewhere, and I think for that purpose the 2%
solution should be fine, right? ;-)
Best regards,
Jens
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