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Old 27th May 2019, 10:27 am   #4
Maarten
Dekatron
 
Join Date: Dec 2007
Location: Haarlem, Netherlands
Posts: 4,185
Default Re: CRT lost its tension band

The brand and type of CRT are essential to know. A few pictures would also be very handy to assess the situation. A tension band is heavily tensioned, so the CRT won't just pop out usually. Smaller instrument CRTs may not have the usual construction as the implosion force is less. Does the instrument have a separate window or is the CRT stuck through?

The best way to let off the vacuum in general would indeed be at the pip. If you feel unsafe, you could make sure the front and cone of the tube are well packed.
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