Thread: Progress Reports on the ETF Rebuilding Project
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Old 11-29-2014, 03:18 PM
Alastair E Alastair E is offline
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Join Date: Feb 2013
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The article was very specific....

60/40 Thorium/Barium Oxide Coated Cathodes--as used in the majority of CRT's--and certain Electron-Microscopes.....

The art was to keep them hot therefore attack from moisture eliminated.
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