I see it now. If I had to guess -- that looks like it might have dripped onto the tube from the packaging. I've seen boxes from the former USSR sealed shut with a brittle glue that yellows, and comes off rather easily with the thumbnail.
Terry On Tuesday, October 24, 2017 at 1:14:07 PM UTC-5, Ben Pye wrote: > > The glue would be on the last photo (184822), top right of the tube. > > The seller does have good feedback, I just wanted to make sure as I bought > some VFDs (IV-21s and another I forget the model of right now) and none of > those had any markings. > > Thanks, > Ben. > > On Tuesday, 24 October 2017 19:08:06 UTC+1, Terry S wrote: >> >> The pins look straight, the red paint could be QC marking. I see only >> minor marks on the pins that are probably from EOL testing. No darkening of >> the glass or any evidence of sustained operation. I didn't see the glue you >> mentioned. >> >> They look like new tubes to me. >> >> Terry >> >> On Tuesday, October 24, 2017 at 12:56:03 PM UTC-5, Ben Pye wrote: >>> >>> I recently picked up some IN-12As to use in a future project off eBay, >>> advertised as NOS. They are with a variety of date codes/OTK marks which >>> was a little strange. Additionally some of them appear to be marked, one >>> has a small amount of red paint, another, what appears to be some sort of >>> glue. On a couple the printed markings are somewhat worn off. I have >>> attached images of some of the questionable tubes. Do these look like they >>> are actually used to you? >>> >>> Thanks, >>> Ben. >>> >> -- 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/3a679761-c536-4906-aa00-d912f91d4df3%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.