Had the same thing with a NOS IN-12B though they do not compare to a NIMO outgassing. I was refunded the cost of the IN-12B and they are readily replaceable. But those metal to glass bonds are not always tenacious. Outgassing has been an issue with vacuum tubes since the dawn of their existence. Tubes were still popular when I was young in the 60's and 70's and I recall my father and grandfather removing tubes occasionally with a milky white top from their TV's (grandfather had a Dumont!).
On Sunday, October 4, 2020 at 8:57:19 AM UTC-4 jörg wrote: > > So, sadly, the tube has sucked air and is cracked somewhere at the pins. -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/b9bdc57d-23e7-42cd-af8d-e05a1b31a662n%40googlegroups.com.
