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[Towertalk] Dow-Key dirty contacts. & SO-239 Covers

To: <towertalk@contesting.com>
Subject: [Towertalk] Dow-Key dirty contacts. & SO-239 Covers
From: ac5tm@bellsouth.net (Thomas Miller)
Date: Sat, 14 Dec 2002 18:16:27 -0800
For larger contacts(motor staters/control contacts etc.) I use a fiberglass
brush.  Looks like a short pen not sure who makes them.  They come in
different sizes and fiber thicknesses.  I do not reccomend for anttenna
relays as they are a little rough.
Tom
----- Original Message -----
From: "Ronald KA4INM Youvan" <ka4inm@tampabay.rr.com>
To: "Tower Talk" <towertalk@contesting.com>
Sent: Saturday, December 14, 2002 3:49 PM
Subject: Re: [Towertalk] Dow-Key dirty contacts. & SO-239 Covers


> >  I am planning to remove the small hole cover on the end and clean the
>
> > contacts wit an automobile ignition contact file. Please tell me if this
>
> > is not a good idea for some reason.
>
>
>    Bad idea, too rough, use a thin strips of printer paper and possibly
> pressure from a jeweler's screwdriver or a fine pointed tool.
>    If that doesn't do it, try thin strips of clean new grocery store bag
paper.
> If that doesn't do it, borrow a fine `diamond on steal' contact cleaning
> tool.
>    Most contact cleaner will carbonize and cause `bad contact' trouble if
you
> transmit through the contacts.
>
> > 2. Is there a cover available to coverSO-239 connectors outdoors.  I
just
> > bought a remote switch for the top of the tower and will not initially
use
> > all positions?  I was considering filling some old used connectors with
> > silicon seal, but prefer a more elegant solution.
>
>
>    Close, fill the pin and insulation area with CLEAR silicone grease sold
> to be used as power transistor heat sink grease, (by GC) designed to fill
> small voids between the transistor and the heat sink, or by Dow for other
> uses.  The silicone (not the sticky kind, the Vaseline like product, it
> has no bearing strength and it can not prevent electrical contact).
>
>    Wrap one thin layer of electrical tape over the installed connector,
> then cover with duct seal or other selastic puddy/wraping tape.
> Or if you have the bucks `Plymoth ElectroSeal'.
>    The tape allows a clean removal of the puddy/calking from the
connector.
> Rolls and rolls of electrical tape will not keep water out, nature sees
> this just as a challenge.
> --
>         73 (= Best Regards) de: Ron ka4inm@tampabay.rr.com
>      100% Slack. since July, 1997 (still free!) SENT D&T are UTC
>         Visit my HAM Web SITE at: http://www.qsl.net/ka4inm
>
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