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Re: removing water from electronics.



Ed.

I'd be curious to know how this one turns out (the salt water).  All my 
"close encounters" with radios and salt water have a "sad ending"...


Robert Oler WB5MZO Houston TX



>From: "Edward R. Cole" <al7eb@ptialaska.net>
>To: amsat-bb@AMSAT.Org
>Subject: Re: [amsat-bb] removing water from electronics.
>Date: Tue, 07 Aug 2001 00:00:25 -0800
>
>Another anecdote from "watering your radio"...etc.
>
>About two weeks ago one of our tech's fell off the back of a boat into the
>35 degree water of Cook Inlet, Alaska...and survived.  His radio took a
>bath, too.  The other radio he was holding in his hand as he attempted
>stepping from one boat to another got dropped.  It is now feeding the fish!
>
>They immediately turned off his belt-radio, removed the battery, rinsed in
>in fresh water [Cook Inlet is salt water], and placed the radio in a
>zip-lock bag full of fresh water.  There it remained for three days until I
>returned from vacation.
>
>I took the radio and dismantled it and sprayed it with water and dried it.
>Immediately I sprayed it with electronic circuit cleaner [mostly alcohol],
>toothbrushed, dried...five times.  The first couple times, using a
>magnifier, I could see a fine salt coating on the pcb but that was largely
>removed after repeated cleaning.  After allowing to dry for a day...I smoke
>tested it [applied power].
>
>Zip...Nada...No worky.  I has now sat on my bench for a couple weeks
>[drying or waiting for the tooth fairy].
>
>I'll write and tell you the rest of the story!  {...to be continued}
>We may have it bronzed and awarded at the next safety meeting to the guy
>who went swimming ;-)
>
>Ed
>
>----
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