Could it be that these CRTs were used in night-vision apparatus? If so, they would have been designed to operate very dimly.
> > >---- Original Message ---- >From: tschw10...@gmail.com >To: neonixie-l@googlegroups.com >Subject: RE: [neonixie-l] Re: OT: Looking for folks interested in >3l01i CRT discussion >Date: Mon, 14 May 2018 07:51:45 -0700 (PDT) > >>Pete, what would explain the low lifespan? Surely the tube wasn't >designed >>to last a month. >> >>Is there some biasing change that would extend the life? Was it >maybe >>designed only for dark room application where the beam current would >be >>much lower? >> >>I just have a hard time understanding such a short lifespan. >> >>Terry >> >>On Monday, May 14, 2018 at 3:09:56 AM UTC-5, petehand wrote: >>> >>> After a couple of weeks the phosphor gets too dim to see in >daylight. I >>> know it's the phosphor because when I adjusted it to move the >ticks to new >>> locations where it had never been scanned, they were bright again. >I put a >>> new tube in and the same thing happened. The phosphor coating is >really >>> really thin, almost transparent. >>> >> >>-- >>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/6f38a608-c69a-4b26-8b18- >2ff48ce22416%40googlegroups.com. >>For more options, visit https://groups.google.com/d/optout. >> $4.95/mo. National Dialup, Anti-Spam, Anti-Virus, 5mb personal web space. 5x faster dialup for only $9.95/mo. No contracts, No fees, No Kidding! See http://www.All2Easy.net for more details! -- 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/380-2201851141811951%40all2easy.net. For more options, visit https://groups.google.com/d/optout.
