In theory that would work if impurities were only gases, but many impurities are not gaseous and require heat to be released from the glass and metal surfaces. I've seen methods described where neon tubes are heated and gas is passed from one end to the other to remove impurities with bombarding.
The reason I never got into neon art was the bombarding process (cooking-out impurities with high-voltage @ lethal current) is too dangerous for my taste. -- 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/c65428ac-4f74-4979-a528-602d1347b9e3%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
