The mirroring can be Mercury drops or sometimes when a Nixie doesn't fire up correctly the wires connecting the number glows instead of the number itself and the deposit shows on the glass close to the wires.
Most tubes were switched on for some time in the factory so the bad ones could be weeded out and also so that the ones specified for the military or otherwise long life usage in some circumstances sat for an extra long time so they will sometimes show some extra sputtering. When you turn on a B-5092 Nixie for the first time after it has been stored for very long time you can usually see that it glows along the wires before the number starts to glow. I've bought a few of these in Swedish military plain brown boxes that had an extra seal over the ends so from that seal I know that these had been unopened for a very long time, even though they were checked regularely before that, and some had this kind of sputtering along the wires and some didn't even though they were manufactured at the same time (had the same date stamps). It could be that the Mercury in the tube is binding to the sputtered material making it shinier than usual. /Martin On Monday, 14 March 2016 05:42:13 UTC+1, Alic wrote: > > So, if it's not mirroring from a getter-flash, what is it on the glass > inside all these 122P224? > The top is perfectly clean and transparent as far as I can tell, even on > the used ones I bought. > -- 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. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/08abcaa7-33f4-4309-94b0-ffa1ae0c0df5%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
