as far as I can tell temperature changes were not "radical". packed in solid thick plastic case with no stress. tube pins look straight. will check with magnifying glass. ones that broke when I picked them up developed hairline cracks immediately. one just disengrated. when I get home will post pics and on the others will do a comparison of segments. Thank you guys for your input. will do some more investigation. the only other thing that may be remarkable is the broken ones have no markings. the unbroken ones have the Burroughs b-7971 stamp.
Clarke Sent from Verizon Note 2 On Sep 7, 2017 1:07 PM, "gregebert" <gregeb...@hotmail.com> wrote: > I had none in storage, and the ones I purchased in the past year had no > signs of stress. Is it possible yours were damaged in storage ? I've never > seen glass weaken on it's own. Also, the pins are fairly rigid (unlike > IN-18's which are quite soft) so if there are any bent ones, it suggests > the tube was stressed while stored. > > I suggest you carefully inspect the base for glass-cracks, then bench-test > them. If you are into data-collection, I suggest gathering I-V data for > each segment on each tube, then plotting and comparing. It takes a bit of > time, but I'm glad I did it for mine. > > > -- > You received this message because you are subscribed to a topic in the > Google Groups "neonixie-l" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/neonixie-l/JI3olwmKrh8/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > neonixie-l+unsubscr...@googlegroups.com. > To post to this group, send email to neonixie-l@googlegroups.com. > To view this discussion on the web, visit https://groups.google.com/d/ > msgid/neonixie-l/d4cdb80d-9854-4cba-937e-2e8f26d311ce%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/d4cdb80d-9854-4cba-937e-2e8f26d311ce%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- 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/CAP3Ko%3DutRmT5nR-uCAoc-3zcp77b%3DZf8_2OfFw5%2BbxjQDogp8A%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
