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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.

osram400wMAV.jpg 387A9362b.JPG 387A9609.JPG 387A5031.jpg 388A6352.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:22 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=25722
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Comment 1 to 4 of 4
Page: 1

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.
AgentHalogen_87   [18 Oct, 2026 at 07:31 PM]
Now that's a great series of photos Cool

Comment 1 to 4 of 4
Page: 1

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