Hi John,
I think I will have to try with my equipment for now - the big
investment I will do is a decent burner, but I cannot afford purchasing
a top-notch pump and so on.
The heaters from Neon John are quite beyond my budget, sadly, but I
guess this is really something that could help me a lot.
As well as getters, this is something I will deal with in the future,
one thing at a time. There is still so much to do. Since I am at the
university, I think getters will not be the problem, though. There are a
lot of friendly chemists I can ask.
I already built a two-terminal glass-feedthrough in a 8mm tube, the next
aim is to turn it into a primitive glow lamp... When I have done that, I
will also start a thorough public documentation on my website.
The 2% Ar in Ne is here, all we need now is a special pressure reducer
and then: let's get ready to rumble! :-)
Best regards,
Jens
Happily, impurities like that probably won't impede getting tubes working at
all. In general, they'll slowly outgas as the tube operates, and make it work
less well. But you should be able to get at least something with the equipment
you have. I'd suggest heating the glass and electrodes (RF heating is ideal
for this) while pumping, then seal off while everything is still pretty warm.
This is easier/cheaper than a vacuum kiln. Our own John Armond sells a very
nice RF heating rig, either complete or in kit form - it's also open source,
but some of the bits require a fair amount of effort to make/obtain.
http://www.neon-john.net/Induction/heater.htm
http://www.fluxeon.com/
I'd also suggest investigating the possibility of a getter, to help clean up
the (intentional) gas in your tubes, and prolong their life.
- John
--
You received this message because you are subscribed to the Google Groups
"neonixie-l" group.
To post to this group, send an email to neonixie-l@googlegroups.com.
To unsubscribe from this group, send email to
neonixie-l+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/neonixie-l?hl=en-GB.
