Trad-Lighting Photo Gallery

Home > User galleries > Ria > Low Pressure Sodium Lamps
Return to the thumbnail page FILE 7/1200 Return to start See previous file See next file Skip to end
Early Philips 55W SOX Lamp Here is a Philips 55W SOX lamp, made at Hamilton in Scotland. The cap is porcelain, which I believe marks it as a relatively early example. The date code is hard to see clearly, but looks like 0E, which makes it May 1970. Unfortunately this lamp did not come with a wrapper, so it's not possible to gain any information from that. Keywords: Lamps

Early Philips 55W SOX Lamp

Here is a Philips 55W SOX lamp, made at Hamilton in Scotland. The cap is porcelain, which I believe marks it as a relatively early example. The date code is hard to see clearly, but looks like 0E, which makes it May 1970. Unfortunately this lamp did not come with a wrapper, so it's not possible to gain any information from that.

Easydim20220-240V2060W20Self20Dimming20Lamp.jpg Ekco-Philips_60W_SO-H_Lamp.jpg Early_Philips_55W_SOX.jpg Duro_Test_120V_750W_Reflector_Lamp.jpg 2020-11-29_Silec_V200.jpg
Lamp/Fixture Information
Manufacturer:Philips Lighting
Lamp
Lamp Type:Low Pressure Sodium
Filament/Radiator Type:U-shaped LPS arc tube
Base:Porcelain BY22d
Shape/Finish:Tubular, clear (T50)
Service Life:Not known at present
Burning Position:Horizontal
Electrical
Wattage:55
Voltage:109
Current:0.6A
Physical/Production
Factory Location:Hamilton, Scotland
Fabrication Date:May 1970 (Date code 0E)
File information
Filename:Early_Philips_55W_SOX.jpg
Album name:Ria / Low Pressure Sodium Lamps
Keywords:Lamps
Filesize:278 KiB
Date added:09 Nov 2026
Dimensions:2159 x 1402 pixels
Displayed:6 times
URL:https://trad-lighting.net/gallery/displayimage.php?pid=1454
Favourites:Add to Favourites

Comment 1 to 5 of 5
Page: 1

Drew   [Mon 09 Nov 2026 at 19:55]
Very nice, I didn't even know porcelain based 55W SOXs existed.
Max   [Mon 09 Nov 2026 at 21:06]
The porcelain cap and the square etch are indeed clear evidences of a very early SOX model. That's a nicely made lamp too.
Ria   [Mon 09 Nov 2026 at 23:00]
@Max - Would you agree with my estimate of the date code..?
Max   [Mon 09 Nov 2026 at 23:02]
Yes, this is correct.
Ria   [Mon 09 Nov 2026 at 23:02]
Thanks LPS Bulb Man

Comment 1 to 5 of 5
Page: 1