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Wine-bottle discharge lamp

Wine-bottle discharge lamp

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High and Low pressure air discharge in a wine bottle. The upper image is air at low pressure. The applied voltage is around 1.5kV. The lower image is closer to atmospheric pressure and the applied voltage is 20kV. The power dissipation is close to 100W so the bottle quickly becomes very hot.

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Manufacturer:me

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Filename:Air_discharge.jpg
Album name:tuopeek / misc
Keywords:Miscellaneous
File Size:70 KB
Date added:Jun 09, 2015
Dimensions:1000 x 879 pixels
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Date Time:2015:06:09 22:35:10
DateTime Original:2015:06:09 10:16:01
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monkeyface
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Jun 09, 2015 at 03:57 PM Author: monkeyface
Nice experiment! It's like a Geissler tube.
How did you seal the bottle's bottom electrode? And from what kind of material are the both electrode made? Aluminium rod?
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Tuopeek-475652085781113 tuopeek1 77334065@N05/
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Jun 09, 2015 at 04:29 PM Author: tuopeek
Thanks, the anode is the bottle cap and the cathode is a small bore copper pipe also used to evacuate the bottle. The pipe is glued in with "araldite". The experiment was originally made to produce "Lenard" rays but it has become internally coated with copper from evapouration of the cathode. I was looking for a suitable resistive load to test a HV power supply and thought of using this.
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Robert


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Jun 09, 2015 at 07:04 PM Author: rjluna2
Interesting phenomenon, Mark

Pretty, please no more Chinese failure.

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Jun 10, 2015 at 03:14 PM Author: Ash
Intersting indeed ! How about filling it with gases (Argon from welding supply, ....)
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Tuopeek-475652085781113 tuopeek1 77334065@N05/
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Jun 10, 2015 at 03:28 PM Author: tuopeek
Yes indeed, something I’d like to try. I think I have some argon left in a bottle for a welder. The trick is to plumb it all together so I can vacuum out the bottle, feed the gas in and vacuum it down again. It would be nice to have other gasses too.
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Jun 10, 2015 at 03:31 PM Author: Ash
Like what ?
tuopeek
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Jun 10, 2015 at 03:33 PM Author: tuopeek
Neon would be great but hard to get.
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Jun 10, 2015 at 07:33 PM Author: themaritimegirl
Very neat? I wonder if this could work and run long term if you lowered the current to a suitable level?

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Tuopeek-475652085781113 tuopeek1 77334065@N05/
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Jun 11, 2015 at 01:32 AM Author: tuopeek
It can run at low current and low pressure but the light output becomes faint. The higher pressure is less stable and I think would not stay constant.
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