Quote:
Originally Posted by Voxophone
Are the tubes typically 'let down' at atmospheric pressure? Would it be posisble to do this inside a pressurised compartment which is then slowly de-pressurised over a longer period with the tube inside?
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Yes that would work, but the re-gun people I saw doing it just made a small hole in the exhaust tip and let air in, that didn't seem to affect the more modern aluminized tubes, but it did for non aluminized ones. The adhesion of the phosphor to the faceplate may have been poorer in the earlier tubes than a more modern tube. Certainly if a modern tube has its neck snapped off, usually the inrush of air will shake the phosphor off the central screen area.