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Re: [TowerTalk] TowerTalk Digest, Vol 100, Issue 30

To: towertalk@contesting.com
Subject: Re: [TowerTalk] TowerTalk Digest, Vol 100, Issue 30
From: "Jack C. Shutt" <w9gt@frontier.com>
Date: Fri, 15 Apr 2011 12:59:24 +0000 (UTC)
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
RE: Sealed Container for housing tuner, etc.  Those plastic electrical boxes 
work fine and, for smaller housings, the cast aluminum project boxes work 
nicely.  I utilize a little RTV to seal unwanted openings or leaks.  You can 
also install a tire valve assembly available at your local auto supply store 
and put a few pounds of positive air pressure in the box to prevent moisture 
incursion.  You might still get some condensation, however.  YMMV

73,  Jack, W9GT
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To: towertalk@contesting.com
Sent: Friday, April 15, 2011 12:12:14 AM
Subject: TowerTalk Digest, Vol 100, Issue 30

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   1. Re: TowerTalk Digest, Vol 100, Issue 27,  Sealed container
      needed for tuner (Terry G. Glagowski)
   
----------------------------------------------------------------------

Message: 1
Date: Thu, 14 Apr 2011 20:00:50 -0400
From: "Terry G. Glagowski" <TGlagowski@SBCglobal.net>
Subject: Re: [TowerTalk] TowerTalk Digest, Vol 100, Issue 27,   Sealed
        container needed for tuner
To: <towertalk@contesting.com>
Message-ID: <007401cbfb00$2f057650$8d1062f0$@net>
Content-Type: text/plain;       charset="us-ascii"

The TUPPERWARE containers lasted about 2 years at my QTH, then they got brittle
and cracked apart... but for $9 was a good try!
The grey plastic electrical boxes available at Lowes / Home Depot for about $25
might be a good bet...
They come with a rubber seal around the edges of a lid that screws on tight...
BUT... you need to put an opening for the cables... suggest you simply cut a
hole in the BOTTOM...
Perhaps glue a PVC pipe section into the hole if you want more than that...
Tightly sealed containers can lead to pressure differences with temperature and
barometric changes, and a hole lets the water from condensation OUT!

Last summer, I replaced all the TUPPERWARE boxes that surrounded junction points
at the base of towers, and installed these boxes around coax switches that were
out in the weather for 5 years...  If the tuner fits in it OK, you will probably
have a good choice there...

Terry / W1TR


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