Quoth Tidak Ada at 2014-04-29 06:13 ...
I once opened a 50 cm B/W picture tube to make a lamp of it. I carefully packed the tube in thick blankets and then filed off the exhaust nipple. About one minute of hissing and the pressure was equilibrated. No danger at all!
Aha! I wanted to get the electron gun and base of a CRT, to re-mount into a longer accelerator structure - was wondering how to break the vacuum safely.
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