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Raytheon ELSI HEL 400 D Mercury Lamp

Raytheon ELSI HEL 400 D Mercury Lamp

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Raytheon ELSI HEL 400 D Mercury Lamp

Photo taken after about 1 minute of power applied. Smaller lamp is a 125w with yttrium vanadate phosphor.
The phosphor type of the Raytheon is of an older technology and lacks somewhat in red output.
Instead of than starting up with the deep red, this begins with a coolish blue tint. I really could do with getting a spectroscope of some sort.

IMG_1473.JPG IMG_1101.JPG IMG_0992.JPG IMG_1024.JPG

Light Information

Light Information

Manufacturer:Raytheon
Model Reference:HEL 400 D
Lamp
Lamp Type:HPMV
Base:E40
Electrical
Wattage:400
Physical/Production
Factory Location:Italy

File information

File information

Download: Download this File
Filename:IMG_0992.JPG
Album name:Andy / Mercury Lamps
Keywords:Lamps
File Size:231 KB
Date added:Mar 28, 2020
Dimensions:2465 x 1643 pixels
Displayed:66 times
Date Time:2020:02:24 17:53:11
DateTime Original:2020:02:24 17:53:11
Exposure Bias:0 EV
Exposure Time:1/80 sec
FNumber:f 5
Flash:No Flash
Focal length:18 mm
ISO:100
Make:Canon
Model:Canon EOS 550D
White Balance:0
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-175272
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Globe Collector
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Mar 29, 2020 at 02:31 AM Author: Globe Collector
A spectroscope is a "must" for a HID collector. Mine was really expensive back in 1984, c$350 for an Amici prism jobbie, these days you can get similar off the 'net or E-Bay for a third of that.


Bloody interesting mercury lamp...interesting bulb shape reminiscent of early Radium or East German Narva lamps...do you know where the plant was.

James and I discovered a mysterious H.I.D. plant in Italy called "Reoms"...all we have to go on is one photocopy of one page out of a tattered old catalogue...but this looks to be a Reoms product, despite the American b rand name.

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

Andy
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Mar 29, 2020 at 01:11 PM Author: Andy
Thanks Andrew, I was especially pleased to obtain this lamp as I have been searching for an example of an Isothermal shaped Radium MV lamp for a long time with now without luck.
To me this is an even better find as it would appear to be more obscure.
According to a document I found this was made at the Elettronica Sicula S.p.A.(ELSI) factory in Palermo which closed down in March 1968.

I'm always interested in exchanging lamps - message me to see what we can do! Smiley

Globe Collector
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Mar 29, 2020 at 06:27 PM Author: Globe Collector
Wow! a Sicillian Mercury Lamp...if it is true it would be one of the rarest mercury lamps on this site.

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

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