On 3/15/2016 10:45 AM, Dekatron42 wrote:
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 <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 neonixie-l+unsubscr...@googlegroups.com <mailto:neonixie-l+unsubscr...@googlegroups.com>. To post to this group, send email to neonixie-l@googlegroups.com <mailto:neonixie-l@googlegroups.com>. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/0c3a86bc-b1f3-4b3a-87f0-ea96d5b0d196%40googlegroups.com <https://groups.google.com/d/msgid/neonixie-l/0c3a86bc-b1f3-4b3a-87f0-ea96d5b0d196%40googlegroups.com?utm_medium=email&utm_source=footer>.For more options, visit https://groups.google.com/d/optout.
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