Effect of COLD

From: Joe R. <rigdonj_at_cfl.rr.com>
Date: Mon Jan 26 12:38:51 2004

   I think it also helps if you can open it up so that the air can
circulate freeely and if you use a fan to blow the air around. I think it's
best if you warm it up rapidly in order to minimize any condensation.


At 10:04 AM 1/26/04 -0800, you wrote:
> Always wrap the item in some plastic wrap when bring
>it into a warmer environment. The condensation can do
>quite a bit of damage. You want it to come up to temperature
>before exposing it to the wetter warm air.
>>From: "Tom Jennings" <tomj_at_wps.com>
>>One of the best things to do is also the easiest: move them inside and
>>leave them, untouched, in a dry place for 24 or more hours.
>>On Sun, 2004-01-25 at 13:32, David V. Corbin wrote:
>>> The largest problem will be condensation. If moisture accumulates, it fill
>>> mix with any contaminants to produce a nice conductive film which can
>>> destroy (short out) all of the electronics on power up.
>>> The second (and much easier to deal with) is mechanical tolerance issues.
>>> Things contract when they get cold and expand when warming up (we all know
>>> this). If the devices are turned on (especially older items) the
effects can
>>> be significant enough that the mechanics will be out of tolerance and bind
>>> and possible bend or break. This is easily cured by NOT turning them on
>>> until they have completely reached room temperature.
>>> As I said, the moisture problem is much more severe. If the items are
>>> in SEALED packaged with a decent amount of Sodium Silicate (or other
>>> agent) this should not be much of a problem. But (unfortunatley) we
>>> dont pay this much attention when packing "average" gear for storage.
>>> One technique I have used successfully is to (at least partially)
>>> disassemble the device [covers off at a minimum] while it is still
>>> cold. After my finger thaw out, I will then bring it in to an enclosed
>>> that has almost no humidity (hot air heating, dehumidifier, chemical water
>>> absorbers) and let it warm up in there. This will usually eliminate the
>>> formation of and condensate.
>>> Hope this helps.
>>> David.
>>> -----Original Message-----
>>> From: cctalk-bounces_at_classiccmp.org
>>> [mailto:cctalk-bounces_at_classiccmp.org]On Behalf Of Mike
>>> Sent: Sunday, January 25, 2004 4:03 PM
>>> To: cctalk_at_classiccmp.org
>>> Subject: Effect of COLD
>>> Is there any problem with data stored in a garage when the temperature
>>> to -20? I just found out where my moved a bunch of my machines (Cromemco,
>>> nabu, pets, Tandy's).
>>> Any precautions to take when moving them back indoors?
>>> Mike
>>> --
>>> Ottawa, Canada
>>> Collector of vintage computers
>>> http://www.ncf.ca/~ba600
Received on Mon Jan 26 2004 - 12:38:51 GMT

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