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Robertson Ballast In Lampi F18T8 Fixture A "Robertson Transformer Company" F15/F20 preheat ballast. This has a long slim design compared to 'standard' F20 preheat ballasts Its also fairly noisy (quite annoying LOL) and is riveted to the fixture (typical in Lampi's) The fixture is [url=http://www.galleryoflights.org/mb/gallery/displayimage.php?pos=-3595] pictured here [/url] Keywords: Gear

Robertson Ballast In Lampi F18T8 Fixture

A "Robertson Transformer Company" F15/F20 preheat ballast.
This has a long slim design compared to 'standard' F20 preheat ballasts
Its also fairly noisy (quite annoying LOL) and is riveted to the fixture (typical in Lampi's)

The fixture is pictured here

CO_LH.jpg _U806BRT.jpg BAL_RF8.jpg A_BAL-S.jpg
File information
Filename:BAL_RF8.jpg
Album name:xmaslightguy / Ballasts
Keywords:Gear
Company and Date Manufactured:Robertson Transformer Company / (date unknown)
Model Number:L15A
Wattage:15/20
Lamp Type:Linear Fluorescent
Filesize:36 KiB
Date added:Apr 14, 2011
Dimensions:800 x 313 pixels
Displayed:176 times
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=6044
Favorites:Add to Favorites

Comment 1 to 5 of 5
Page: 1

GullWhiz   [Apr 14, 2011 at 05:10 AM]
Are you serious?! It looks very classical!
xmaslightguy   [Apr 14, 2011 at 06:06 AM]
Looks more like the shape of a larger fixture's ballast.. except that Its only a little under an inch across, but 4.5" long LOL i've never seen a F20 preheat ballast like this one Smile
DimBulb   [Apr 14, 2011 at 12:31 PM]
I wouldn't mind finding some of those! Sounds like it's the same size as a 4, 6, 8 watt ballast?
xmaslightguy   [Apr 15, 2011 at 01:40 AM]
@DimBulb I _think_ it might be longer, but width/height is the same.
dor123   [Mar 26, 2024 at 11:23 AM]
An European low loss 20W T12 or 18W T8 preheat ballast which is usually larger than a high loss ballast for the same lamps, would be much smaller and shorter than this.

Comment 1 to 5 of 5
Page: 1
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