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Metrovick 85W SO/H Lamp with amber outer jacket Here is a very rare and interesting lamp. It is a standard 85W SO/H lamp but with an amber outer jacket. I am assuming that it was intended as some form of darkroom safelight. There are no visible date codes unfortunately, on either the jacket, the inner arc tube, or any of the packaging, so if anyone can help with an approximate date, I would very much appreciate it. When lit, the colouring of the outer jacket disappears and it looks like any other LPS lamp in terms of colour (or lack of it..!) The inner arc tube is actually branded Atlas, or at least its wrapper is. Keywords: Lamps

Metrovick 85W SO/H Lamp with amber outer jacket


Here is a very rare and interesting lamp. It is a standard 85W SO/H lamp but with an amber outer jacket. I am assuming that it was intended as some form of darkroom safelight. There are no visible date codes unfortunately, on either the jacket, the inner arc tube, or any of the packaging, so if anyone can help with an approximate date, I would very much appreciate it. When lit, the colouring of the outer jacket disappears and it looks like any other LPS lamp in terms of colour (or lack of it..!) The inner arc tube is actually branded Atlas, or at least its wrapper is.

DSC04870.JPG GEC_280W_Dual_Arc_Tube_SOI-H_Lamp.jpg Metrovick_85W_SO-H.jpg Philips_35W_SOX_Darkroom_Safelight.jpg DSC02858.JPG
Lamp/Fixture Information
Manufacturer:Metropolitan Vickers Ltd / Atlas Lighting
Lamp
Lamp Type:Low Pressure Sodium Type SO/H
Filament/Radiator Type:Removable U-shaped arc tube
Base:BY22d
Shape/Finish:Tubular, clear
Burning Position:Horizontal +/- 20°
Electrical
Wattage:85
Voltage:Measured at 156V
Current:0.6A
Physical/Production
Factory Location:England
Fabrication Date:Unknown - 1950s/60s..?
Application/Use:Darkroom safelight
File information
Filename:Metrovick_85W_SO-H.jpg
Album name:Ria / Low Pressure Sodium Lamps
Keywords:Lamps
Filesize:324 KiB
Date added:Aug 13, 2024
Dimensions:2165 x 1348 pixels
Displayed:19 times
URL:https://trad-lighting.net/gallery/displayimage.php?pid=235
Favorites:Add to Favorites

Comment 1 to 8 of 8
Page: 1

Max   [Aug 13, 2024 at 09:13 PM]
What a superb and unique specimen! Is the Dewar made of mass-tinted glass, or is it just externally coated?
Ria   [Aug 13, 2024 at 09:26 PM]
It's definitely not externally coated, it seems to be tinted glass. I've heard that there is a blue version of this, but I've not come across one.
Max   [Aug 13, 2024 at 09:30 PM]
A blue version? For a monochromatic orange light source??
Tuopeek   [Aug 13, 2024 at 09:52 PM]
I've seen a darkroom housing and filter for this size and type of lamp. However it had a regular SO/H inside. Makes me think the original had been replaced at some point in its use and the filtered lamp was harder to find. Although that should only happen in the Dewar had been broken at some point.
Ria   [Aug 13, 2024 at 10:36 PM]
@Max - I'm only going on what I've been told, can't remember who said it now, one of the LG crowd anyway Wonder
wide-lite 1000   [Aug 15, 2024 at 03:50 AM]
A very interesting lamp Ria
Ria   [Aug 15, 2024 at 02:58 PM]
It is, not too many of them about, only ever seen one other.
Sammi   [Aug 15, 2024 at 03:21 PM]
We thought that we had paid over the odds for this lamp, and a couple of others, but by the time you added in the 'bonus buys' we got when we collected the lamp it was a bargain.! Laughing

Comment 1 to 8 of 8
Page: 1