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liquid nitrogen?
liquid nitrogen?
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Old 13th July 2004, 01:11 AM   #11
Danielb is offline Danielb  United Kingdom
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Isnt the reason why its so cold is because it compressed?
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Old 13th July 2004, 04:40 AM   #12
Overd0se is offline Overd0se  United States
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true but the lower the temperature the less the noise due to some quantum physics type thing. if the temp was 0k there would be no noise what so ever.
Are you sure that applies here? I doubt you'd get temps much below -40c unless you used cascading compressors or some exotic gas. Not very near abosolute zero. However I did see a liquid helium generator on ebay a few months back...
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Old 13th July 2004, 08:58 PM   #13
bob123 is offline bob123  United Kingdom
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"Isnt the reason why its so cold is because it compressed?"

when you compress a gas it heats up, if you expand a gass it cools down
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Old 14th July 2004, 07:26 AM   #14
Cal Weldon is offline Cal Weldon  Canada
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liquid nitrogen?
My only experience with liquid nitrogen was with the old infrared cameras that you filled up and took night shots for about an hour. It doesnt seem well suited for cooling an amp or W.H.Y because it has to be able to evaporate as it warms and expands or be re-compressed and circulated. Them's the rules 'o' physics. I'm thinking you would probably want to keep a nitrogen compression system outdoors. It's likely to be a noisy sonofagun.

I don't have a handle on the electronics side of the cooling but I'm thining if you use a gas that doesn't require the compression that nitrogen does, then you cut down on the noise of the cooling system. An old fridge on the balcony comes to mind.

Like Trichloromonofluoromethane dude!

Freon 22 if memory serves me correctly. Can you say CFC's?

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