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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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