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Registered Member #4762
Joined: Sun May 06 2012, 05:59PM
Location: Russia
Posts: 93
Finally had first light of this thing. 7' 4" (2200 mm) plasma tube, 270 mm diameter. Over 30 kg of borosilicate glass evacuated and then filled with proper inert gas mix. Power supply is a homemade proper high voltage ferrite transformer and a halfbridge from mains. Power consumption is about 300W. 5 more similar size tubes with different colors (green, red, yellow, turquoise, multicolored) to go. Will post updates when/if they're done, but that's not soon, such glass things are too difficult to work with
Registered Member #4762
Joined: Sun May 06 2012, 05:59PM
Location: Russia
Posts: 93
Tube was presented at the local science-related festival for children, along with same size green-white, and smaller red and yellow ones, and other our stuff (plasma balls, jacob ladder, tesla coil, even smaller tubes etc). Some nice photos, oh yeah. Everybody likes nice photos, I hope. Sorry for direct link images, uploading somehow shows an error message and doesn't work today for me.
klugesmith wrote ...
Magnificent work. Are they for museums, or fairs, or just your friends?
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Really large plasma tubes
