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Uploaded by extralicht on May 13, 2009
Operation of a Hanau mercury vapour discharge lamp with tilt ignition. ~1925.
Science & Technology
Standard YouTube License
Thanks for posting! Very interesting, that you have to turn the lamp to start it!
histelek 1 year ago
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Thanks for posting! Very interesting, that you have to turn the lamp to start it!
histelek 1 year ago