Return to the thumbnail page Display/hide file information See previous file See next file

Mercury arc lamp SVDSh-250 (Дуговая ртутная лампа СВДШ-250)

Mercury arc lamp SVDSh-250 (Дуговая ртутная лампа СВДШ-250)

Click to view full size image

Common view

youtube__NudfDOMAIQ.jpg youtube_LuvXoLn7b34.jpg IMG_20190523_215251.jpg IMG_20190523_215259.jpg

Light Information

Light Information

Manufacturer:MELZ (МЭЛЗ)
Model Reference:SVDSh-250 (СВДШ-250)
Lamp
Lamp Type:High Pressure Mercury
Filament/Radiator Type:Quartz discharge orb
Base:E40
Shape/Finish:Tubular Clear
Fixture
Location:Personal Collection
Electrical
Wattage:250 watts
Voltage:65 .. 80 volts
Current:3,5 .. 4,3 amperes
Physical/Production
Factory Location:Russia, Moscow
Fabrication Date:Febrary 1950

File information

File information

Download: Download this File
Filename:IMG_20190523_215251.jpg
Album name:SilverRay / High and Super High Pressure Mercury lamps (Ртутные лампы высокого и сверхвысокого давления)
Keywords:Lamps
File Size:356 KB
Date added:May 24, 2019
Dimensions:2465 x 1643 pixels
Displayed:77 times
Date Time:2019:05:23 21:52:51
DateTime Original:2019:05:23 21:52:51
Exposure Bias:1 EV
Exposure Time:1/459 sec
FNumber:f 2.65
Flash:Flash
Focal length:3.7 mm
ISO:75
Make:samsung
Model:GT-I9300
Software:NJH47F
White Balance:0
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-159932
Favorites:Add to Favorites
Comments
dor123
Hero Member
*****
Offline

Gender: Male
Posts: 2560
View Gallery
Other loves are computers, office equipment, A/Cs


View Profile WWW Personal Message (Offline)
May 24, 2019 at 02:40 AM Author: dor123
Are you sure that this is a mercury lamp and not a metal halide lamp? The arctube is very short for a 250W high pressure mercury lamp. If this is really a mercury lamp, it can only be a short-arc mercury lamp with mercury pressure of 80 atmospheres. Such lamps usually have no outer bulb, and requires forced cooling, because of the immense load presence on the quartz arctube..

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

rjluna2
Sr. Member
****
Offline

Gender: Male
Posts: 297
View Gallery

Robert


GoL
View Profile Personal Message (Offline)
May 24, 2019 at 05:51 AM Author: rjluna2
It looks like ME class Mercury Vapor bulb to me, dor123.

http://www.lamptech.co.uk/ME.htm

Pretty, please no more Chinese failure.

Max.
Newbie
*
Offline

Posts: 49
View Gallery


View Profile Personal Message (Offline)
May 25, 2019 at 07:38 AM Author: Max.
Thanks for posting! It's nice to finally see how this lamp looks like - I saw a diagram of this particular СВДШ-250 in an old book (Elektrische lichtquellen - Gasentladungslampen, by A.P. Iwanow, 1955). Its light output is 11,500 lm by the way.

Doron, as usual you assume way to much... this СВДШ-250 is a mercury lamp indeed, not a MH one.
SilverRay
Newbie
*
Offline

Gender: Male
Posts: 0
View Gallery


UCSugBKOjSXGHbmMgYI-aUyw
View Profile Personal Message (Offline)
May 25, 2019 at 08:02 AM Author: SilverRay
Thank You, Max.

Too many differences in parameters -- some books did write about 10,000 lm, other books -- 11,500 lm. I don't know neither voltage nor current exactly...
dor123
Hero Member
*****
Offline

Gender: Male
Posts: 2560
View Gallery
Other loves are computers, office equipment, A/Cs


View Profile WWW Personal Message (Offline)
May 25, 2019 at 09:09 AM Author: dor123

Doron, as usual you assume way to much... this СВДШ-250 is a mercury lamp indeed, not a MH one.

So why here I see a trace of liquid metal in the arctube despite it is at full output like SilverRay says?

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

Max.
Newbie
*
Offline

Posts: 49
View Gallery


View Profile Personal Message (Offline)
May 25, 2019 at 09:15 AM Author: Max.

So why here I see a trace of liquid metal in the arctube despite it is at full output like SilverRay says?

Because there are variations in the operating characteristics of these old lamps, especially when they were made entirely by hand. Stop being so literal in your "observations" and think that all you know is the absolute truth and that everybody else must be wrong; you'll do yourself and everybody else a favor... (Silveray, feel free to delete any post that you deem out of topic or annoying, mine or other's - it's your thread).
SilverRay
Newbie
*
Offline

Gender: Male
Posts: 0
View Gallery


UCSugBKOjSXGHbmMgYI-aUyw
View Profile Personal Message (Offline)
May 25, 2019 at 09:49 AM Author: SilverRay
Max, thanks.

I don't wish to delete posts from other members -- I think that every member must have HO.
It's a forum, not a my private web site -- I skip the stupid posts simply.
dor123
Hero Member
*****
Offline

Gender: Male
Posts: 2560
View Gallery
Other loves are computers, office equipment, A/Cs


View Profile WWW Personal Message (Offline)
May 27, 2019 at 01:46 AM Author: dor123

Max, thanks.

I don't wish to delete posts from other members -- I think that every member must have HO.
It's a forum, not a my private web site -- I skip the stupid posts simply.

@SilverRay: My posts in your gallery aren't stuipid. It is Max that gets anrgy at me, even if I ask my thinking as question in your pictures that may be wrong, rather than setting my things as facts, like I did in the past with several of Stanislev pictures.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

SilverRay
Newbie
*
Offline

Gender: Male
Posts: 0
View Gallery


UCSugBKOjSXGHbmMgYI-aUyw
View Profile Personal Message (Offline)
May 27, 2019 at 02:18 AM Author: SilverRay
Well, it's Your humble opinion. But I write types of lamps only when I know them exactly. Why You starts to doubt -- "maybe it's a metal halide lamp", "maybe it's a flash lamp"? These Your thinkings aren't informative, imho.
© 2005-2019 Lighting-Gallery.net | Powered by: Coppermine Photo Gallery