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GE 20-Watt Two-lamp Preheat Ballast

GE 20-Watt Two-lamp Preheat Ballast

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One of the ballasts out of one of my Moe Bros. lights. Removed to read the date code. Date code 0G.

All four ballasts in both fixtures have the same date code.

IMG_1674.JPG IMG_1671.JPG 58G692.JPG IMG_1669.JPG

Light Information

Light Information

Manufacturer:General Electric
Model Reference:58G692
Lamp
Lamp Type:Linear Fluorescent
Shape/Finish:T12
Fixture
Ballast Type:Magnetic Preheat
Socket Type:Medium Bi-Pin (G13)
Electrical
Wattage:2x20
Voltage:118
Current:.7 amps
Physical/Production
Factory Location:USA

File information

File information

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Filename:58G692.JPG
Album name:icefoglights / Fluorescent Lights
Keywords:Gear
File Size:78 KB
Date added:Nov 21, 2010
Dimensions:1024 x 576 pixels
Displayed:309 times
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-49838
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DieselNut
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John


jonathon.graves johng917 GeorgiaJohn
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Nov 21, 2010 at 12:37 AM Author: DieselNut
Technically, these are not the "Tulamp" style, as they do not have the yellow starter circuit running through the ballast as a "lead" lamp. These are more like the "AD-LITE" style, or the ones in my vintage F40 halfpiper.
Here is a 2 x 15 "TULAMP" one I have:
http://www.lighting-gallery.net/gallery/displayimage.php?pos=-41718
Here is the AD-LITE one that is more the style of the ones in our MOE BROS lights:
http://www.lighting-gallery.net/gallery/displayimage.php?pos=-41888
BUT....It is not always the case, as this one is called "TULAMP", yet has separate starter circuits, independent of the ballast:
http://www.lighting-gallery.net/gallery/displayimage.php?pos=-42406
And of course one of our all time favorites, the F40 "TULAMP":
http://www.lighting-gallery.net/gallery/displayimage.php?pos=-41714

Preheat Fluorescents forever!
I love diesel engines, rural/farm life and vintage lighting!

icefoglights
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GoL
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Nov 21, 2010 at 02:04 AM Author: icefoglights
Yeah I know. Still seems common to call a preheat ballast that runs two lamps a "tulamp" though, even though it isn't a GE lead/lag ballast with internal starting compensator.

Have you looked at the date code on yours yet?

01010010 01101111 01100010 01100101 01110010 01110100

DieselNut
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jonathon.graves johng917 GeorgiaJohn
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Nov 21, 2010 at 08:06 AM Author: DieselNut
I have not removed mine. What year does your code indicate?

Preheat Fluorescents forever!
I love diesel engines, rural/farm life and vintage lighting!

icefoglights
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GoL
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Nov 23, 2010 at 01:28 AM Author: icefoglights
I downloaded the ballast date code list from the GE website, but they don't go back far enough. I think it maybe February of 1950, but I'm not sure.

01010010 01101111 01100010 01100101 01110010 01110100

DieselNut
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jonathon.graves johng917 GeorgiaJohn
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Nov 23, 2010 at 07:10 AM Author: DieselNut
Wow! Well I would say, since the lights came from the same seller, they were probably sisters!

Preheat Fluorescents forever!
I love diesel engines, rural/farm life and vintage lighting!

icefoglights
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GoL
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Nov 23, 2010 at 10:47 PM Author: icefoglights
I think so. I'd say this narrows the lights down to having been made in 1950. Also makes sense with the lamps being made in 1949. The oddball from '46 could have been a hardware store replacement or old stock that came with the rest of the lamps when they were bought and put up. I feel safe saying the Sylvania lamps were replacements.

01010010 01101111 01100010 01100101 01110010 01110100

DieselNut
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jonathon.graves johng917 GeorgiaJohn
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Nov 23, 2010 at 11:11 PM Author: DieselNut
That is awesome! I have been trying to "cook" that one mercury starved (or contaminated gas) lamp from mine, but it is not doing much so far. It gets VERY hot on a F32T8 ballast wired for double overdrive or a neon transformer, but it never gets up to even half of normal brightness and will still not start on preheat, just continuously cycles the starter.

Preheat Fluorescents forever!
I love diesel engines, rural/farm life and vintage lighting!

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