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Old 12-09-2010, 10:42 AM
DaveWM DaveWM is offline
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besides the band or safty glass is there a difference in the contsrution of the two?

What I am getting at is "should" a band be added to a CRT that has the safty glass removed.

If they are the same basic CRT just one uses bonded glass and the other has a band, then it would seem that a band should be added if the bonded glass is removed.
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Old 12-09-2010, 05:07 PM
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old_tv_nut old_tv_nut is offline
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Quote:
Originally Posted by DaveWM View Post
besides the band or safty glass is there a difference in the contsrution of the two?

What I am getting at is "should" a band be added to a CRT that has the safty glass removed.

If they are the same basic CRT just one uses bonded glass and the other has a band, then it would seem that a band should be added if the bonded glass is removed.
As far as I know, they would NOT be "the same basic CRT," as I don't think you will find the same part number with a safety glass OR a band - it will be one or the other. Note the danger of implosion of a banded tube when the band is removed. This tells me the banded and unbanded tubes must be basically different. The engineers may have determined that a particular glass kit could be used either way, but I don't know if that has ever been done, unless someone who knows tells us.
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Old 12-26-2010, 09:11 AM
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NewVista NewVista is offline
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Quote:
Originally Posted by DaveWM View Post
"should" a band be added to a CRT that has the safty glass removed.

.
The band was just for the mounting lugs ?
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Old 12-26-2010, 10:11 AM
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marty59 marty59 is offline
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Originally Posted by NewVista View Post
The band was just for the mounting lugs ?
Anybody correct me if I'm wrong here but yes, basically it's there for the mounting lugs to easily facilitate installation/replacement. Most tubes as we know had some sort of strapping set-up that mounted the tube to the bezel. There is the exception of some early Zenith Rectangular tubes that mounted in a "surround" then that was then bolted in, and was a PIA to unseat from the old tube during replacement.

Has anybody noticed any cateract conditions with the band/lug type tubes? With all that strapping and shielding was the use of bonding materials eliminated?

As for releasing tubes of vacuum, I remember a safe way was to drill a hole in the anode button after making sure it would remain discharged!
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