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Unknown 140w SO/H ballast Removed from column 01 on a road I'm currently working on relighting (to LED - Kill me now) on Thursday 12/01/2017, and running a 90w Osram SOX lamp in a Thorn Alpha 1, is this totally unknown but 100% working ballast for 140w SO/H lamps. At a rough guess it probably dates to late 1940's early 1950's. Shame the capacitor was replaced. The only thing I know about it is that its a HEAVY son of a gun, weighing in at easily 20-25kg. I plan a full restoration on it, but idealy I'd like a new label for it. Sharpie pen is there for size comparison. This is however the only one so far that I've come across, the rest having been replaced, though if anymore are found, I will be rescuing them for the collection.

Unknown 140w SO/H ballast

Removed from column 01 on a road I'm currently working on relighting (to LED - Kill me now) on Thursday 12/01/2017, and running a 90w Osram SOX lamp in a Thorn Alpha 1, is this totally unknown but 100% working ballast for 140w SO/H lamps.
At a rough guess it probably dates to late 1940's early 1950's. Shame the capacitor was replaced. The only thing I know about it is that its a HEAVY son of a gun, weighing in at easily 20-25kg. I plan a full restoration on it, but idealy I'd like a new label for it. Sharpie pen is there for size comparison.
This is however the only one so far that I've come across, the rest having been replaced, though if anymore are found, I will be rescuing them for the collection.

PICT0047~0.JPG PICT0050.JPG PICT0078.jpg PICT0086~0.JPG PICT0474.JPG
File information
Filename:PICT0078.jpg
Album name:Dave / Control gear
Filesize:178 KiB
Date added:14 Jan, 2017
Dimensions:960 x 717 pixels
Displayed:52 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=5130
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Comment 1 to 6 of 6
Page: 1

lampy   [15 Jan, 2017 at 07:41 PM]
has that got crackle finish paint on it? popular in the 40's early 50's
Kev   [15 Jan, 2017 at 11:35 PM]
What a shame that A1's are coming out and shitty led going in
AngryHorse   [17 Jan, 2017 at 08:21 PM]
Classic oldie!, bet theres not many uF left in that capacitor???
sailormoon_01_uk   [26 Oct, 2022 at 08:48 AM]
this looks like a old Philips L3643 Ballast, I have one the same butthe terminal block on mine is black Bakerlite
Dave   [26 Oct, 2022 at 08:22 PM]
Thanks for the info. Might you have an image of the label please? I'd like to replicate it if possible.
sailormoon_01_uk   [28 Oct, 2022 at 07:42 AM]
Yep I'll add a Photo in the Gallery section.

Comment 1 to 6 of 6
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