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Old 03-19-2010, 06:37 PM
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jhalphen jhalphen is offline
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Join Date: Feb 2007
Location: Paris, France
Posts: 595
Hi Guys!

Bullet replies - tired & getting late here (half-past midnight)

John, Bob, Thank You! Nice & heart-warming good-luck wishes!

For Eric H;
Does the sealing material have to be applied before the baking process?
- Yes

If a tube was a very slow leaker why couldn't it be sealed after the tube cooled down?
- Frit Glass is a paste, it has to be baked at high-temp to become ceramic-hard and therefore vacuum-tight.

For Old_TV_Nut: Could you explain a little more of what we are seeing in the pictures?

You are seeing the rim of the ETF's 15G donor CRT re-sealed with Frit-Glass after leak detection. Really not spectacular, huh! just some beige ceramic-hard glass sealing up this heavy leaker (rust & metal-fatigue cricks under the microscope) - think 1952 De Havilland "Comet" 1st ever passenger jet midair explosions - same process in progress. Only time will tell after complete rebuild and IF it lasts if this was the successful formula.

Best Regards & signing off

jhalphen
Paris/France
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