Rare lamps (sunlamps) S-2

Lamp in assy

File information
Filename:	IMG_20210722_220329.jpg
Album name:	SilverRay / Low and medium pressure MV lamps
Manufacturer:	GE
Type/Model:	S-2
Filesize:	2575 KiB
Date added:	17 Nov, 2021
Dimensions:	2555 x 2048 pixels
Displayed:	562 times
URL:	http://80.229.24.59:9232/gallery/displayimage.php?pid=16948
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Comment 1 to 5 of 5

Page: 1

Olav

[17 Nov, 2021 at 07:48 PM]

It is always nice when there is also the original description for the old lamps. Very often this is missing.

Andy

[17 Nov, 2021 at 07:56 PM]

Nice to see your photos on Lamp Room Roman! These must be very rare, especially with the paperwork. Cool

SilverRay

[18 Nov, 2021 at 05:06 AM]

Thank You, Andy Smile

I'm happy to find a safe harbor Smile

eclipsislamps

[18 Nov, 2021 at 10:09 AM]

I think i need to attempt to make a replica of this lamp. What voltage does it take and does it have argon inside?

SilverRay

[18 Nov, 2021 at 12:43 PM]

The LP mercury arc voltage is about 12-15 volts, but the current is relatively big. The filament of this lamp needs about 30V with a less current. But these lamps need a special ballast with increased leakage inductance. So at startup, with the cold lamp, voltage downgrades, the filaments softly warming up, after little time the mercury arc is excites. You can see the filament has a thicker parts where arc is lit. And the other part of filament is hot too when the lamp is lit.
Yes, these lamp is also argon filled.

Comment 1 to 5 of 5

Page: 1