See below for my comments
You can safely
let the air in (or vacuum out) of a CRT by breaking the
"tit" on the back end of the CRT where the air was evacuated. It may be
covered by the plug for the electrical connections. If it is then just
break the plug off. The glass is very thin there and I've seen may people
just use a karate chop motion with almost any metal object to break the end
of the tit off. That will let the air in and the rest of the tube stays
intact.
I just did that accidentally to a Mac SE. :-( I was trying to remove a
cable from the innards and my hand slipped and wacked the board on the
back of the CRT and skewed it far enough to bust that little tit. Now I
have *more* spare Mac parts.
Hmmm, UPS just "safely let the air in (or vacuum out)" of a TRS-80 Model II
CRT for me by breaking the tit. Wasn't that nice of them?
Anyone know where I can get a replacement (hopefully without spending an
arm and a leg)? What model(s) CRTs will work?
Thanks,
A
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