[Hi-zreceivingarraydiscussions] Idea for weatherproofing amps

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Hi Mike,

Could you send the link URL for that enclosure?

TNX  Dick

On 3/24/2011 12:14 AM, Mike Waters wrote:
> On Wed, Mar 23, 2011 at 6:13 PM, David Raymond<daraymond at iowatelecom.net>wrote:
>
>> Even gasketed enclosures are a problem.  Unless they are pressurized (like
>> air Heliax), you still have problems with condensation.  Leaving an
>> opportunity for some air flow is a better approach than air tight.
>>
> I have had good results with small gasketed enclosures, like the one at
> http://www.w0btu.com/images/Beverage_control_box_4444.jpg and
> http://www.w0btu.com/images/Beverage_box4412.jpg.
> I fill all the connectors with silicone dielectric compound, and there are
> NO air vents. Works for me.
>
> I don't know how big these preamps are. Regardless, the larger the
> enclosure, the more of a chance you have for moist air getting inside.
> Reason being, there is a larger internal pressure change with a given
> temperature and/or barometric pressure change.
>
> In the past, I have put a little desiccant package inside enclosures sealed
> with tape.
>
> 73 Mike
> www.w0btu.com
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