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  #1  
Old 04-03-2009, 11:21 PM
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Eric H Eric H is offline
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Sony Beta Combo, W/a cataract?

Here's a somewhat beat looking example of one of those Sony Combos.

Looks like the tube is getting bubbles around the edge.

I don't think I've seen a Sony before with this problem.

Are they a bonded tube?

http://cgi.ebay.com/1975-Sony-Trinit...3A1|240%3A1309
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  #2  
Old 04-03-2009, 11:28 PM
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I had a late '70's 19" Sony with a similar problem. The set had many problems and I tossed it.
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  #3  
Old 04-04-2009, 11:27 AM
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REAL TVs have TUBES!
 
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All of the '60s-early '80s Sonys had a bonded tube, but it's rare to see a cataract. It may have been in the sun too long, or in other unfavorable elements. I've seen a few of them with those black bubbles, and it's usually ones stored outdoors (or been in a fire).

It's the same tube as all the other 19" Trinitrons from '73 through '78.

Charles
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  #4  
Old 04-04-2009, 01:55 PM
site123a site123a is offline
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I heard people call this "screen rot". I've usually seen this happen to old computer terminal's after they've been stored in a humit garage for a long time.

Like these:
http://www.dvq.com/oldcomp/photos2/1k/adm3a_1.jpg
http://sturgeon.cac.psu.edu/~mloewen...HP2647A-1L.jpg
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  #5  
Old 04-04-2009, 03:26 PM
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Kiwick Kiwick is offline
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Quote:
Originally Posted by kx250rider View Post
All of the '60s-early '80s Sonys had a bonded tube
We never had a trinitron CRT with a bonded safety glass here in Europe, maybe it was a legal requirement in the US back then?
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