Hi,
wow, that looks good. I am trying to make smaller steps because I am not
so good with the mechanics. I will build small tubes out of test tubes
first; a glass lathe is nice but for now it is too much for me.
Jens
Hello!
Nice, I am glad You are really working on it, so do I :-) I am
spending all my free time making nixies, not much time to write about
it on blog.. I am now in phase of building glass lathe again, the
previous one was of bad design..
I made several stems from Simax (boro) glass using a lead-in-wires
with tungsten middle sealing part. I tested them on helium leak
detector and some of them are ok! :-) So now I need the lathe to make
the envelopes and seal it..
http://dalibor.farny.cz/wp-content/uploads/2012/09/IMG_8088.jpg
I also did simple experiment with photo-etching of numbers from thin
stainless steel sheet. It works, but the etching proces will have to
be made more even and much much faster to prevent under-etching..
http://dalibor.farny.cz/wp-content/uploads/2012/08/20120804_120302.jpg
I also had to build new transformer spot welder, the capacitor
discharge welder waswaste of time :-( the new one can be adjusted,
tungsten-steel welds are now really easy :-)
Dalibor Farnı
http://dalibor.farny.cz
sent from Samsung Galaxy Pad
Dne 27.9.2012 5:17 "jb-electronics" <[email protected]
<mailto:[email protected]>> napsal(a):
Thanks Michel, I am planning to do all kinds of glow lamps before
I get a real torch, a real colon display would be nice.
Next, I will experiment with the aluminum oxide insulator. Sadly,
it is quite brittle, so if you shake the tube too hard it will
break loose. But I could use this insulator to prevent parts of
wires to glow.
But I doubt that air is going to get any brighter, Argon would
probably yield much better results.
Jens
Nice work Jens!
Would be a good combination, nixie tube clock with glow lamp
colons or
something like that. It doesn't seem as bright as neon but that is
probably because it is a prototype.
Michel
On Sep 27, 7:10 am, jb-electronics
<[email protected] <mailto:[email protected]>>
wrote:
Hi folks,
finally I got my first glow lamp working. It is the third
try, therefore
I call it "GL-LS-3", short for glow lamp lab sample 3. See
two pictures
here:
http://www.jb-electronics.de/tmp/gl-ls-3_1.jpghttp://www.jb-electronics.de/tmp/gl-ls-3_2.jpg
It consists of 9mm soda lime tubing and Dumet wire. The
gas filling is
normal air at 9mbar. It ignites nicely at roughly 550V DC.
I used a simple propane torch for the glass work. Will
switch to a
hand-held oxygen-propane torch in a few months though
(when I have
enough time and money).
I will get my needle valve in two weeks or so, then I will
be able to do
something with neon. Believe it or not: over two months
lead time for a
silly needle valve... Anyway, I hope I will have the tube
making content
prepared for my website by then. It is piling up, but
there is still
much to do.
Best regards
Jens
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