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2467B CRT "burnout"?


 

Hello all,

Recently I aquired a 2467B in very poor shape, thinking I will try to restore it. In doing so I noticed the CRT has some weird "burnout" (or so I am afraid). Posted pictures at

Please can anyone tell me if it is a goner CRT? Should I spend any time on it? I should mention that it powers up and shows some readout, so it is not competly dead (the CRT, not the scope, as the scope does not boot, but that is another problem).

Thank you in advance!

Bogdan


 

Hi Bogdan,?
Every 2467B crt has that black rectangular spot. My guess is that it is the getter that was fired to remove residual gas.?

The tube shows a bright spot, which implies that the tube is not broken, the vacuum is Ok. No sweep though.
Pl get the scope going and see if it works. From my own experience, very hard to burnt out the 2467b crt.? The circuit will switch off the crt trace when nothing happens after a set time.?
Good luck.?
cslim?