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F28T5/841 cathode glow

F28T5/841 cathode glow

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seems this ballast is on its way out? I've seen a few as they fail they light the cathodes real bright
Robertson 2xF28T5 ballast
also came across a unit that was running 28W lamps on 54W/HO ballasts and was working

20141029_161553_zed20141029_161612_70p.jpg ZedusaTempImage_zed20141029_163552_70p.jpg ZedusaTempImage_zed20141029_191237_70p.jpg 20141027_134749_zed20141027_134806_70p.jpg

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Filename:ZedusaTempImage_zed20141029_191237_70p.jpg
Album name:Alights / Electrical jobs
Keywords:Lamps
File Size:148 KB
Date added:Oct 29, 2014
Dimensions:1537 x 2050 pixels
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themaritimegirl
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Florence


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Oct 29, 2014 at 08:43 PM Author: themaritimegirl
I would think it's the lamp itself ready to go EOL.

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streetlight98
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Oct 30, 2014 at 05:44 PM Author: streetlight98
Hmm this doesn't seem like a normal EOL to me. Maybe the ballast treats EOL lamps differently than most electronic ballasts but this just looks different. Almost like it's sputtering.

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Oct 30, 2014 at 05:53 PM Author: Kev
The 28 and 54W tubes seem to last a decent time but the ballast are the let down. I've seen 28W on 54W gear and The other way around. Tridonic have now made a 28 or 54W ballast somehow it knows what lamps it's running

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Oct 30, 2014 at 05:59 PM Author: ggillis
I find newer T5's(f14t5-f54t5) don't blacken the same at eol as older T5's

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