RE: in your experience...

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Posted by alan m. kafton (M) on May 23, 2012 at 13:04:28

In Reply to: in your experience... posted by mike1127 on May 22, 2012 at 22:27:20:

Completely safe, with two caveats.

Firstly, know that there are different cryogenic processes performed by differing companies, both as to the control method of ramp-down and ramp-up of temperature, and to the depth of temperature.

While I vastly prefer using a facility that treats materials at -320F (the sonic results are superior, imo), a facility that only went down to -295F or -300F would be acceptable as long as their ramp-down and ramp-up control was tight and extended (meaning very long and gradual). This ensures the materials will not be shocked by any rapid fluctuation of temperature.

Secondly, and especially on older NOS tubes, there is no guarantee that the vacuum seal on these tubes is perfect (and dependent on the adhesive used, if any), and therefore there could be a failure. It's not happened to me in the 12+ years of my experience, but it's always a possibility. This is not the fault of the cryogenic facility, but the fault of the original manufacturer. Just something to be aware of....

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Follow Ups Full Thread

Topic - cryo - mike1127 23:52:49 05/19/12 (14)

Lots of great cryo info... - musetap 12:45:30 05/20/12 (0)

RE: cryo - barryb 08:23:47 05/20/12 (0)

RE: cryo - May Belt 06:00:51 05/20/12 (6)

I'm currently using your "cryo" method. - tweakk 09:11:52 05/20/12 (5)

I suppose you'll like her better one way or the other when done?...N/T - musetap 12:39:56 05/20/12 (2)

Not really interested in results. - tweakk 12:50:32 05/20/12 (1)

Cool! Enjoy the process!...N/T - musetap 12:54:54 05/20/12 (0)

Oh no - mes 12:12:10 05/20/12 (0)

RE: I'm currently using your "cryo" method. - The Heretic 12:03:30 05/20/12 (0)

I have asked about Cryoing stuff. Best to do cables and wires. Some have done whole amps - Elizabeth 00:22:47 05/20/12 (0)

RE: cryo - Charles Hansen 00:20:57 05/20/12 (3)

There is no problem with electrolytics..... - alan m. kafton 14:49:56 05/20/12 (2)

in your experience... - mike1127 22:27:20 05/22/12 (1)

RE: in your experience... - alan m. kafton 05/23/1213:04:28 05/23/12 (0)

Follow Ups

RE: in your experience... - alan m. kafton 05/23/1213:04:28 05/23/12 (0)

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