Re: [IRCA] WATERPROOF BOXES (was: DKAZ questions)

[Bill Whitacre <bw@xxxxxxx>]

I use Guyâs eBay gray plastic boxes for the indoor portion of the Vactrol and some black RadioShack mini-boxes for outside â WITH bleed holes.  I can attest to the fact that condensation DOES happen â whether at Grayland or Lubec or Fleeton, VA on the Chesapeake Bay.

Fortunately, inside the outdoor portion of the Vactrol youâve only got a Vactrol itself and perhaps a couple of resistors, depending on whose circuit youâre using.  Not much bad can happen unless the condensation mixes with a little salt water and shorts something out â could happen.

After just one trip to Grayland a new outdoor device needs a good fresh water rinse after several days of salty mist or just blowing breeze.  Not quite sure how my âoldâ FLG100s still work but they do!  Proves that âpottingâ something is far more useful than just to keep prying eyes away.  ;-)

â

> On Oct 30, 2016, at 11:31 AM, Nick Hall-Patch <nhp@xxxxxxxx> wrote:
> 
> One thing that will interest me is whether you get condensation inside those sealed boxes Mark and Guy.    Over the years, a number of radio amateurs have found they needed to add bleed holes on the underside of the box to allow condensation to escape, at least for long term deployment.
> 
> I believe the problem is that moist air can find its way into the box, even if actual moisture can't, and then it gets cooler and the moisture condenses and has nowhere to go.
> 
> It's a battle!
> 
> I've sealed up regular plastic boxes over the years with a runny silicone compound used for sealing windshields (auto supply stores have it, Permatex is one of the brands), figuring I won't be taking it apart except in direst circumstances.  Then I have had to add a bleed hole anyway.
> 
> best wishes,
> 
> Nick
> 
> 
> At 14:04 30-10-16, Mark4@xxxxxxxxxxxxxxx wrote:
>> Guy, I ordered a bunch of these and have been getting e-mails in bad English about running into customs problems, and so sorry, and if I send my PayPal info he'll refund the money etc..  So it might have become a bad bet but tnx anyway.  On the other hand the boxes may eventually arrive and I'll be the first to apologize.
>> 
>> Meanwhile if someone IS looking for small waterproof boxes, try this:
>> 
>> https://www.amazon.com/gp/product/B00E0H7HFK/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
>> 
>> Mine arrived in the usual two days and are very well-built.
>> 
>> 
>> I'm halfway through a complete how-to story on waterproofing antenna terminations and hope to have this published in a week or two.
>> 
>> Cheers!
>> 
>> Mark Durenberger
>> 
>> -----Original Message----- From: Guy Atkins
>> 
>> Last year I came upon this weatherproof model and have found the quality to be very impressive for the price:
>> http://www.ebay.com/itm/1x-Waterproof-Plastic-Enclosure-Electronic-Project-Box-Instrument-Case-DIY-Hot-/271598155425 
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> 
> Nick Hall-Patch
> Victoria, BC
> Canada  
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