> On Apr 11, 2019, at 1:23 PM, Bill Notfaded <[email protected]> wrote: > > I think Jens is right... usually that means the tubes are hit ie. pretty much > ruined. I took a bunch of old frequency counters and old mulitmeters apart > recently and some of them had this condition. I'm sure many stayed turned on > set on single digits for hours at a time and just got worn out. Some of the > devices tubes were fine... some had almost all the tubes with that silvered > on the inside of glass in front of the cathodes problem.
Same here. I have several pieces of test equipment with six or eight tubes that are virtually opaque in the first decade and fine in the last two. Each decade has a different brightness. Terry Bowman, KA4HJH "The Mac Doctor" -- 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/C60CE303-F9D1-42A4-A757-51F380832ADE%40gmail.com. For more options, visit https://groups.google.com/d/optout.
