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CRYOGENIC TREATMENT

Discussion in 'Sound Science' started by know talent, Jul 9, 2008.
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  1. spookygonk
  2. guitarplayer Contributor
    Hi Kevin,

    Just for reference on the results of this particular experiment:

    How quickly did you cool the objects down?
    How cold did you cool them to (-300F or -320F)?
    How long did you "soak" them at the target temp?
    How quickly did you allow them to return to ambient?

    Just wondering as these things all matter.

    I'm not trying to start a flame war, or bring into question Kevin's methods (I have a great deal of respect for him and his work), I'm just wondering...

    Disclaimer--Yes, I do cryo treatment and offer cryo treated goods. So...

    Peace,

    Lee



    Quote:

    Originally Posted by kevin gilmore /img/forum/go_quote.gif
    Actually there were 3 x SACD's, and all came out fine. One of the
    micro jewel cases had a crack in it, not sure whether or not it was
    cracked beforehand. All the cables and connectors came out fine.

    Turns out one of the 3 baggies i threw in there also did not like the
    cold, and came out very brittle. Not sure why. It was a no-name brand
    anyway.

    I'm expecting the person who had me do the cryo to post here soon.




     
  3. kevin gilmore
    Quote:

    Originally Posted by guitarplayer /img/forum/go_quote.gif
    Hi Kevin,

    Just for reference on the results of this particular experiment:

    How quickly did you cool the objects down?
    How cold did you cool them to (-300F or -320F)?
    How long did you "soak" them at the target temp?
    How quickly did you allow them to return to ambient?




    Well i have virtually infinite control over all the numbers. In this case

    Cool down to 80K at .1K per minute. (about 37 hours total)
    Add liquid nitrogen to 1 inch over what is in the tank. temp = 75K
    Soak for 1 week
    Suck out the liquid nitrogen. (and dump it out on the floor!)
    Warm up at .1K per minute. In fact due to the amount of heat
    added, it actually warms up at the rate of about .08K per minute.

    All numbers computer controlled with multiple eurotherm controllers.
     
  4. guitarplayer Contributor
    Great, thanks for the info. Computer control is a wonderful thing! I like the Eurotherm controllers, although I tend to use Watlow's as I've been using them for years.

    So just to clarify, you released LN2 vapor into the MVE cryo storage container allowing the parts under treatment to cool at about .1K per minute. Once the temp in storage container reached 80K you then allowed (ie., flooded the chamber with) LN2 to cover the parts under treatment?

    Dumping LN2 onto the floor is always fun! Make a hell of a cool fog!

    Peace,

    Lee



    Quote:

    Originally Posted by kevin gilmore /img/forum/go_quote.gif
    Well i have virtually infinite control over all the numbers. In this case

    Cool down to 80K at .1K per minute. (about 37 hours total)
    Add liquid nitrogen to 1 inch over what is in the tank. temp = 75K
    Soak for 1 week
    Suck out the liquid nitrogen. (and dump it out on the floor!)
    Warm up at .1K per minute. In fact due to the amount of heat
    added, it actually warms up at the rate of about .08K per minute.

    All numbers computer controlled with multiple eurotherm controllers.




     
  5. AudioCats
    nice!

    can't wait to read the results! [​IMG]
     
  6. dd051
    CRYO FACE! :>BRRRR
     
  7. AudioCats
    once upon a time there was gonna be a cryo/non-cryo comparison......
     
  8. AudioCats
    once upon a time......
     
  9. tongson
    What happened to them cryo cables?
     
  10. AudioCats
    .... there was gonna be.....
     
  11. -=Germania=-
    You have some splainin' to do.
    [​IMG]
     
  12. TheChoster
    Our audio components is as best as the weakest component in our lines up, but if we wanna go the the molecular level
    Even if our cable was cryogenic treated but our solder or the tips of the connectors weren't, than it become bottleneck there (if we are talking at the molecular level, and the only level were cryogenic treatment seems to make some dubious standing)
    So can we even see sufficient gains?
    My two cents
     
  13. manaox2
    Wow. KG gets no respect. No respect at all.
     
  14. LostOne.TR
    Wonder what happened to the person who got the items.
     
  15. kevin gilmore
    The person is desperately trying to find a piece of music that will
    show a difference between the before and after cables... Evidently
    no such luck yet.

    Offer still open to anyone that wants to try...
    I have a virtually unlimited supply of liquid N2.

    I can even do liquid helium, but that ain't cheap. And you would
    be paying for it.
     
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