[Soekris] Solid state capacitors

[Poul-Henning Kamp]

In message <45A66BF6.5070605 at meduna.org>, Stanislav Meduna writes:
>Mats Lundqvist wrote:
>
>> now I have one that's about to be deployed, but
>> uses a heating circuit inside the casing to warm things up when the
>> Swedish winter weather sets in...
>
>Which is actually a good thing if the temperature quickly
>falls below the dew point. You don't want your Soekris
>to look like this:

Well, heating is not a guaranteed cure either, because hot air can
contain more water vapour than cold air, so heating caries the potential
for condensation issues if not done right.

Companies like Vero have a lot of experience and expensive solutions
for such issues.

People with more sensible budgets use passive dessicators (salts of
various sorts) to manage the problem.

Really smart people locate the salts at the top of the enclosure,
where the water vapour is :-)

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.