On Monday, 23 February 2015 20:39:17 UTC, gregebert wrote: > > ...stuff on bombarding...
In tube manufacture you can easily go down to 1 micron, or about 1/760,000th of an atmosphere - this is done with diffusion pumps - wonderous things that shouldn't really work, but do... You keep the pumps running whilst the tube is baked by the bombarding current - very scary - safety is absolutely key. The gasses & other impurities driven off by the heat are pumped out, and then you backfull to between 5 & 30 Torr (about 1/25th of an atmosphere) with your favourite noble gas/combo, e.g. Ne, Ne+Ar, Ar+Hg, Helium, whatever. There are several good books on neon; See "Neon Techniques" by Strattman. > "Neon Engineer's Notebook" (Fishman & Crook) is very good; I was able to > get a personally signed copy > The best for nixies is definitely Weston, but Grahame Marsh leant me a copy of the 1935, "Neon SIgns" by Miller & Fink - its still almost all accurate - the only things that have changed are some of the electrical safety & the use of asbestos etc Nick -- 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 [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5b7dc409-fa72-4dc5-ac51-9a2c7887d85d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
