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Re: [TowerTalk] Taper element sections/penetrox/cleaning

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Subject: Re: [TowerTalk] Taper element sections/penetrox/cleaning
From: "pfizenmayer" <>
Date: Tue, 8 Dec 2009 11:15:34 -0700
List-post: <">>
One other hint (having rebuilt a KT34 that was up for 27 years) you can find 
"tubing brushes " in stainless steel that will fit the ID of the tube being 
telescoped into and it does a good job of cleaning that up.They have some 
that can be chucked in a drill and others that are manual.(You twist them - 
NOT push in and out !!!!) I also used Scotch brite on a wooden stick ala a 
rifle bore cleaner after I did the tubing brush.

I can tell you that in AZ of you leave some Penetrox at the junction , in 
about two days you will pick up enough dust/pollen/whatever to make a mess.

FWIW -- Hank K7HP

> However, let me add a bit to it:
> o   Use Scotchbrite pads and not steel wool to clean the surfaces.  The
> steel wool will leave bits of - steel - on the aluminum surface which 
> could
> corrode (dissimlar metals in contact) over the years and reduce the
> conductivity of the joint.
> o   Don't lather the Penetrox on the joint.  Use one Scotchbrite pad to
> clean the surfaces and another clean pad to apply a thin coating onto the
> materials.  Once you assemble the joints there should be no oozing of
> Penetrox from within.  If there is, wipe it off and use the second
> Scotchbrite pad again, this time without adding more Penetrox.
> 73 de
> Gene Smar  AD3F


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