Okay, so I can confirm I'm not the only psycho with crazy aspirations... Using U glass seems like a very cool idea. Watching Dalibor's videos is mesmerizing and I can't imagine the frustration and hours of trial and error he went through. But that's half the fun, right?
A diff pump or turbopump setup and I think a way to bake out the tube to get that last little stubborn fraction of molecules sticking to the inside to release. Keep looking on ebay and you can find pumps and such. I recently sent a deal to a friend I saw at $250 for a small turbopump with controller. Thought about buying it myself as a secondary, but my junk stash is already quite large. I am buying parts to build a functional system for all sorts of experiments and would love to get some glowing tubes at some point. Lasers, nixies, discharge, etc. Just learning machining processes on my 11" Sheldon lathe and South Bend vertical mill, both 1950s vintage. Logan 8" shaper is pretty antique as well. As for mixing your own gas, like setting up an aquarium the larger the vessel and amounts of gas, the easier it will be to control the proportions and get it right or close enough. Maybe a manifold with gases going in at same pressure/flow rates, through same orifice sizes, and solenoid valves controlled by a uprocessor to get the ratio you want? Flow gauges for argon used in welding are easy to come by with a little ball that shows flow rate. These might be calibrated for specific gases. On Tue, Jun 15, 2021 at 4:23 AM ErikPaul <crusader8...@gmail.com> wrote: > So I've been working on making my own nixies, main dream is to produce a > tube using uranium glass tubing in place of your regular boro or soda lime > glass. In sourcing fill gases(not a huge quantity of suppliers who sell in > small quantities to non-commercial) i keep coming across a mix called "K4" > which is 75% neon 25% argon. My question is would the much higher > percentage of argon make the breakdown voltage too high? I found a couple > of Ne-Ar voltage to concentration graphs but the highest Ar % that they > show is 5%, but it looks as though the curve trends upwards with higher %. > My main draw to the K4 is it would remove the need for separate Ne and Ar > valves and inlets. My gut tells me that it won't work well but I figured > I'd chuck the question to the experts(you guys). > > Erik > Here is a link to the graph I mentioned > http://www.lamptech.co.uk/Documents/SO%20Gas.htm > > -- > 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 view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/2b40a2c0-8329-4d6f-9c89-93aeba4e0f61n%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/2b40a2c0-8329-4d6f-9c89-93aeba4e0f61n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAJD4P-h9PjRVp_XcpWkA7mS5Rc-JYvXSADzSOQyKyFz9_-TFbg%40mail.gmail.com.
