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F40T12 DX Electrode Seen through lamp

F40T12 DX Electrode Seen through lamp

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The same thing happen on the lamp behind it to which is the same type
Weirdly they only appear to be on one side

youtube_a5X2B-sNUxc.jpg youtube_IUbSFndWeN0.jpg IMG_4005.JPG 2F6FCC4D-8DDD-448A-B28F-EDA2789AE342.jpeg

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Filename:IMG_4005.JPG
Album name:F96T12 DD VHO / Fluorescent
Keywords:Lamps
File Size:202 KB
Date added:Apr 23, 2018
Dimensions:1848 x 2464 pixels
Displayed:80 times
Date Time:2018:04:23 14:53:42
DateTime Original:2018:04:23 14:53:42
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rjluna2
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Robert


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Apr 23, 2018 at 03:23 PM Author: rjluna2
Typical of Philips Alto lamps that some of the Phosphor crystal lattice has laid out on the surface of the glass. Here is a couple sample that I have it in use at Thin Phosphor Coating on Alto Lamps.

Pretty, please no more Chinese failure.

suzukir122
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suzukir123
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Apr 24, 2018 at 05:37 PM Author: suzukir122
Sylvania's are notorious for this as well on the non-etch side. You can see the actual filament since there is no shield
guard with them. And it's AWESOME when you can see them during EOL's.. when the end is completely blackened and you
can see the hot spot movement along the electrode, followed by the crazy blue flashing, and the final orange flashing/swirling.

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ace100w120v
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May 05, 2018 at 09:40 PM Author: ace100w120v
Philips did away with the cathode guards on one end some time ago, but kept them on one end in order to hold the mercury analgam dosing capsule.
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