OK, that's once the tube is pressurized with the desired gas. However, to cleanse the tube of impurities, it must be baked-out and evacuated to a rather high vacuum. Even at a high vacuum of 1 micron, there are still an extraordinary number of gas molecules present, on the order of 10^16 per liter. For home-made tubes I would actually want to re-evacuate the tube a second time, and refill, to get even more impurities removed. On Thursday, September 14, 2023 at 10:28:06 AM UTC-7 Miles Thatch wrote:
> From he Drive books archive > Nixe Tube Data > NixieGas.pdf > > I was using the following excerpt from this book. Is it wrong or am I > getting something mixed up? > > On Thursday, September 14, 2023 at 11:43:46 AM UTC-4 gregebert wrote: > >> I think you mean 10-50 microns (which is 1000 timer lower), not 10-50 >> Torr. One atmosphere of pressure is 760 Torr (760mm Hg). >> I've seen neon-sign texts stating the need to get below 1 micron for >> proper bombarding, and I imagine nixie tubes are similar. >> >> On Thursday, September 14, 2023 at 6:57:51 AM UTC-7 Nick wrote: >> >>> Look at Dalibor's videos. >>> >>> On Thursday, 14 September 2023 at 12:08:57 UTC+1 [email protected] >>> wrote: >>> >>>> Good day. >>>> >>>> Since we require to reach vacuums of 10 - 50 torr depending on the gas >>>> mixture. What sort of vacuum pumps are we looking at sourcing to achieve >>>> those levels? >>>> >>> -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/ea949a55-26f7-41f0-9118-7f190f9d9fafn%40googlegroups.com.
