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Sylvania and GE 3 tubes

Sylvania and GE 3 tubes

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This is a sampling of the 30 plus Sylvania tubes I received plus one GE 3 bulb. All the Sylvania F40s have this etch.

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Filename:1A4DD093-8F68-4F00-A87A-BD0F5523C862.jpeg
Album name:Bluesvan / F40 fluorescent bulbs
Keywords:Lamps
File Size:476 KB
Date added:Sep 08, 2020
Dimensions:2465 x 1841 pixels
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Date Time:2020:09:08 21:54:57
DateTime Original:2020:09:08 21:54:57
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Exposure Time:1/40 sec
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Focal length:3.3 mm
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Fluorescent05
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Zack


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Sep 09, 2020 at 02:07 PM Author: Fluorescent05
Very nice! I think the GE 3 tubes were the first to surpass 3000 lumens.

I can't pretend a stranger is a long awaited friend. -Neal Peart

jercar954
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Oct 20, 2020 at 03:40 PM Author: jercar954
That is correct. It was known as a "Premium 3." Nice Sylvania lamps. They range from 1962-64.

Preheat and T-12 fluorescents forever! Down with LED's and instant start T-8 fluorescents.

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