Quote:
Originally Posted by bgadow
Yes, I never would have thought about it until I was given a NOS RCA crt from the 80s, like a 27". The instructions inside said to evacuate the dud before mailing it by punching a hole in the anode. I usually use a large, sharp-pointed nail though an ice pick would work well. By the second gentle tap I'm usually through.
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I never heard of any CRT firm, that would want the tube back, not under vacuum.
When you turned in a dud for a replacement, the first thing they did was check for vacuum. They used a hand held high voltage probe.
