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View Full Version : liquid helium compressor on ebay


zabomb4163
12-12-2003, 10:01 AM
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2580978845&category=45044

not sure if its a good deal, just thought some people here might be interested.

http://www.nmia.com/~cavlon/fseqpt/2003/Q3/9_26a/833.JPG

http://www.nmia.com/~cavlon/fseqpt/2003/Q3/9_26a/832.JPG

not sure how reliable this is but....
http://www.ls.eso.org/lasilla/Telescopes/SEST/html/internal-access/TechDoc/Receivers/IRAM/IRAM%20Coldhead%20&%20Compressor.htm



Keep it running for at about 4 hours until you reach 60-70 K and 15 K in the first two stages. Read the temperatures at 15-minute intervals and write them down.

The normal pressure at the compressor should be about 100 – 110 psig in operation.

Now its time to refill the empty cryo tank and decrease the temperarture down to 4 K.
Marci
12-12-2003, 11:04 AM
er.... that just warrants one big *UCK ME!
xDUCK
12-12-2003, 12:07 PM
I doubt this could really be useful for the type of computer cooling we do here (cooling consumer parts)... As many LN2 users have found out, there is a temperature at which many things simply stop working...

Still, it does look cool. :) But it would probably be more trouble than it's worth.
zabomb4163
12-12-2003, 12:13 PM
it wouldn't be that low under a 200watt load guys.
xDUCK
12-12-2003, 01:21 PM
Originally posted by zabomb4163
it wouldn't be that low under a 200watt load guys.

I know that, but IIRC, a P4 stops operating completely at -13x C...
]JR[
12-12-2003, 01:30 PM
well these retail for $5.5k, and are 200v ish. $10 shipping is a bargin. Although its missing a cold head (see the autocascade design thread)

it will maintain about 100k @ 200w heatload though.

]JR[
bowman1964
12-12-2003, 02:06 PM
Originally posted by ]JR[
well these retail for $5.5k, and are 200v ish. $10 shipping is a bargin. Although its missing a cold head (see the autocascade design thread)

it will maintain about 100k @ 200w heatload though.

]JR[

Look again.thats $10 for packaging.shipping well be truck frieght proberly,it may go ups but doubtful.
depending on where in the country you are.to me it would cost in the neighborhood of $300 just in frieght
zabomb4163
12-12-2003, 04:36 PM
bowman.....is this a good system?
TheDogFather
12-12-2003, 07:16 PM
There was one on Ebay.co.uk (http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=11816&item=2577944620) the other day too.

TDF.
Charles Wirth
12-12-2003, 07:47 PM
That is like my helium compressor.

I have new hoses and cold head too
zabomb4163
12-12-2003, 09:24 PM
dude, you are going to have one sick system...

how far are you from on die cpu testing?
xDUCK
12-13-2003, 01:56 AM
Originally posted by zabomb4163
dude, you are going to have one sick system...

how far are you from on die cpu testing?

It's impossible, the pressure on the chip would be far too great.