Photo Gallery

Home > User galleries > Sammi > Mercury Vapour
Return to the thumbnail page FILE 18/684 Return to start See previous file See next file Skip to end
Osram 400W MA lamp Our second MA lamp, completing the set, and it was nice to get the Technical Data on the packaging. Keywords: Lamps

Osram 400W MA lamp


Our second MA lamp, completing the set, and it was nice to get the Technical Data on the packaging.

DSC03096.JPG DSC03149.JPG MA_lamp.jpg DSC02692.JPG IMG_1211.JPG
Lamp/Fixture Information
Manufacturer:Osram
Model Reference:MA/V
Lamp
Lamp Type:Medium Pressure Mercury Vapour
Filament/Radiator Type:Aluminosilicate glass arc tube
Base:E40
Shape/Finish:Tubular
Service Life:14,000 hours
Burning Position:Vertical cap up
Fixture
Ballast Type:Good old magnetic lump
Location:Personal collection
Electrical
Wattage:400W
Voltage:120-150V
Current:3.25A
Optical
Colour Temperature:5400K
Colour Rendering Index:Ra/6
Physical/Production
Dimensions:13 inches long
Factory Location:Shaw, Oldham
Fabrication Date:Date Code 36 (Dec 1952)
File information
Filename:MA_lamp.jpg
Album name:Sammi / Mercury Vapour
Keywords:Lamps
Filesize:387 KiB
Date added:06 Nov 2025
Dimensions:1529 x 2148 pixels
Displayed:10 times
URL:https://trad-lighting.net/gallery/displayimage.php?pid=1030
Favourites:Add to Favourites

Comment 1 to 3 of 3
Page: 1

Max   [Fri 07 Nov 2025 at 18:27]
A good old atmospheric mercury lamp! I wished I had seen those in the wild, it must have been quite a sight, but I was born too late for that. I'd say your lamp is from 1952 given its brass end cap.
Sammi   [Fri 07 Nov 2025 at 22:55]
Thanks Max, I'll amend the info. Love
Max   [Sat 08 Nov 2025 at 13:22]
You're welcome Sammi!

Comment 1 to 3 of 3
Page: 1