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Philips L4045BX 40/60w SOX ballast

Philips L4045BX 40/60w SOX ballast

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Philips L4045BX leak transformer for either 40 or 60w SOX bulbs.

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Light Information

Light Information

Manufacturer:Philips
Lamp
Lamp Type:SOX
Physical/Production
Factory Location:Great Britain

File information

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Filename:IMG_9560.jpeg
Album name:cameroncafe10a / Street Lighting
Keywords:Gear
File Size:689 KB
Date added:Sep 08, 2019
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Date Time:2019:09:08 17:45:35
DateTime Original:2019:09:08 17:45:35
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cameroncafe10a
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Sep 08, 2019 at 11:04 AM Author: cameroncafe10a
The main query I have is whether or not the PFC capaictor is needed for running the lamp, or if the only purpose if to improve the power factor. Is it safe to simply wire the ballast to the mains and then connect the lamp to the output of the ballast?

Also, would it be fine running a 35w SOX lamp on this, even though it is desgined for 40/60w SOX?
sailormoon_01_uk
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Sep 08, 2019 at 11:16 AM Author: sailormoon_01_uk
Yes the Capacitor is for Power Factor Correction (13uf 259V connected across the Mains), so this will run the lamp without it

Yes this will run both the 35 and 55 watt SOX and the 26 and 36 watt SOX-E (Economy) Lamps. Re the 40 and 60w SOX these were the rating of the 1st Generation of SOX lamps before they were Re-Rated in the late 1960's.
cameroncafe10a
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Sep 08, 2019 at 11:53 AM Author: cameroncafe10a
oh cool thanks for the info

How old would you say this ballast is then? Early 60s maybe?
AngryHorse
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Sep 08, 2019 at 12:30 PM Author: AngryHorse
Early 60s yes, the SOX name was introduced circa 1964 starting with those ratings 40/60watt, a rare find too as this would be one of the first generation of SOX auto leaks

Current: UK 230V, 50Hz
Power provider: e.on energy
Street lighting in our town: Philips UniStreet LED

"Beauty fades, dumb is forever".......Judge Judy Cheesy

cameroncafe10a
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Sep 08, 2019 at 01:33 PM Author: cameroncafe10a
wow thats cool.

I just wired it up and happy to say that its working perfectly after 50+ years. These things really were built to last... (as I could tell by the weight as it literally weighs a ton)

Can't say the same about most modern ballasts/drivers.
Danny
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Sep 08, 2019 at 03:35 PM Author: Danny
Cool old ballast this. I got one of these in my Lucidor and another in my phosco P224. Lovely old lumps
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