1960's Atlas 400 watt mercury lamp with end frank

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Filename:	DSC09933.JPG
Album name:	lampy / mercury and sodium lamps vintage
Filesize:	2368 KiB
Date added:	17 Sep, 2015
Dimensions:	2592 x 1944 pixels
Displayed:	35 times
URL:	http://80.229.24.59:9232/gallery/displayimage.php?pid=921
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Comment 1 to 11 of 11

Page: 1

Kev

[17 Sep, 2015 at 10:59 PM]

Where on fucks earth???? Surprised

lampy

[17 Sep, 2015 at 11:01 PM]

did i find that? lol

Danny

[17 Sep, 2015 at 11:03 PM]

lol this is a rare one i thought only the americans had the BT shape mercs

lampy

[17 Sep, 2015 at 11:08 PM]

BT ? is that what this shape lamp is called?

Danny

[17 Sep, 2015 at 11:13 PM]

yes im unsure what it stands for but xmaslightguy may know

Kev

[17 Sep, 2015 at 11:28 PM]

Yes that's what I was thinking don't think I've seen an ATLAS this shape before? Does it work I see in the other picture the lamp has come unstuck from the cap sadly

versalift09

[18 Sep, 2015 at 06:58 AM]

I thought BT was for Borosilicate Tubular referring to the Halide lamps with the bulged glass around the arc tube? Nice lamp Shocked

Andy

[18 Sep, 2015 at 07:45 AM]

Stunning find! BT means bulged tubular I think. Very rare lamp indeed! Cool

AngryHorse

[18 Sep, 2015 at 08:04 AM]

Glue the cap back uo, and jobs a good un Very Happy

lampy

[18 Sep, 2015 at 10:45 PM]

thats intersting, these lights were on a farm, they still lit up too !!! albeit very dim and greeny looking

James

[21 Sep, 2015 at 10:34 PM]

I think Thorn started with the BT bulbs after their 1966 introduction of KolorArc, which was made based on Sylvania's US MetalArc technology. Since Sylvania's early lamps needed the BT bulb, Thorn copied it and presumably standardised the same for Mercury. Until the phosphor was improved, allowing the British-made ED bulbs to be used again.

Comment 1 to 11 of 11

Page: 1