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Osram 400w MA/V: Run Up Sequence Run up sequence of photographs of a 400w Osram medium pressure mercury vapour lamp running on a 400w MBF ballast. Quite an interesting spectacle as the initial discharge fills the entire arc tube and then slowly constricts as the voltage and pressure rises.

Osram 400w MA/V: Run Up Sequence

Run up sequence of photographs of a 400w Osram medium pressure mercury vapour lamp running on a 400w MBF ballast.
Quite an interesting spectacle as the initial discharge fills the entire arc tube and then slowly constricts as the voltage and pressure rises.

IMG_7968.JPG IMG_7984.JPG osram400wMAV.jpg osramtrulite250wmbfu.jpg shitlamp.jpg
File information
Filename:osram400wMAV.jpg
Album name:FrontSideBus / HID: Mercury Vapour
Filesize:12275 KiB
Date added:09 Oct, 2026
Dimensions:6890 x 2048 pixels
Displayed:12 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=25722
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Comment 1 to 3 of 3
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AngryHorse   [09 Oct, 2026 at 06:50 PM]
It seems the MAs get a definite arc path more quickly than the MBs, you can see it, even in they're low pressure stages Cool
Olav   [09 Oct, 2026 at 07:18 PM]
A lovely series of photos showing the fascinating start-up process. I really like it.
Andy   [12 Oct, 2026 at 08:17 AM]
That's really great - You've captured the run up sequence beautifully.

Comment 1 to 3 of 3
Page: 1

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