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Life of SOX lamps

Life of SOX lamps

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Not all of them are like this, heres one out of the same 12, with no blacking.
Click on the photo to zoom in, and you can see the emitter on the cathodes, indicating a new lamp.
Again the one on the left has done about 4 years.

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Filename:X3.JPG
Album name:AngryHorse / Low pressure sodium lamps and lighting.
Keywords:Lamps
File Size:299 KB
Date added:Apr 10, 2011
Dimensions:2048 x 1533 pixels
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LegacyLighting
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Blake


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Aug 31, 2012 at 05:36 PM Author: LegacyLighting
Rich, I'm guessing the one on the left has less getter due to the use?
AngryHorse
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Rich


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Sep 01, 2012 at 04:18 AM Author: AngryHorse
Morning Blake, yes your right, as the lamp run throughout its life the tube gives off gasses that are then absorbed by the getter.
As the getter coat cleans up the gasses it gets smaller until its a little white patch, at which point the lamp will be at EOL.

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