Dekatrons use a getter that is flashed and they contain similar gas mixtures compared with Nixies, as I understand it the getter is there to absorb impurities from the materials used whereas the mercury is there to extend the life of the Nixie as it reduces the sputtering.
/Martin On Tuesday, 15 March 2016 18:23:42 UTC+1, Nick wrote: > > Why would they have a getter? An Hg pill that needs to be vaporized, sure. > But a getter? They are used to remove any stray gas molecules given off by > the glass or internal structures due to heat & time. > > Nixies are gassed tubes by definition - a getter would be > counter-productive - even during baking and initial evacuation prior to > backfilling, you wouldn't use a getter. > > Nick > > > On Monday, 14 March 2016 01:15:28 UTC, jrehwin wrote: >> >> Nixies are not vacuum tubes - they shouldn't have a getter. >> >> >> Actually, some nixies do have a getter, but it's a different kind of >> getter than vacuum tubes use, naturally. Most of the ones with getters use >> "pill" getters, often on the back of the anode, and there's normally no >> "getter flash" on the glass. >> >> >> http://www.tubeclockdb.com/images/stories/2012/in-18-bd/in-18-nixie-clock-6.jpg >> >> - John >> >> -- 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/0c3a86bc-b1f3-4b3a-87f0-ea96d5b0d196%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
