Effect of COLD

From: Dwight K. Elvey <dwight.elvey_at_amd.com>
Date: Mon Jan 26 12:04:04 2004

 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 packed
>> in SEALED packaged with a decent amount of Sodium Silicate (or other drying
>> agent) this should not be much of a problem. But (unfortunatley) we usually
>> 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 extremely
>> cold. After my finger thaw out, I will then bring it in to an enclosed area
>> 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 drops
>> 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 - 12:04:04 GMT

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