[TowerTalk] TH6 dissimilar metals query

Pete Smith n4zr at contesting.com
Sun Apr 11 03:17:39 PDT 2010


Barry, take a look at 
<http://www.eaa1000.av.org/technicl/corrosion/galvanic.htm>  Power is 
not an issue, but exposure to a moist environment is.  Why not use 
either stainless or aluminum to fabricate a clip instead?

73, Pete N4ZR

The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com


On 4/10/2010 11:06 PM, Barry Fox wrote:
> In the process of rebuilding a TH6 I broke the aluminum clip which shorts
> the Beta match wires to the boom.  I can make a replacement from copper,
> but wonder if that is a good idea.  A stainless steel screw will hold the
> copper clip to the aluminum boom and the copper clip will be wrapped around
> and bolted to the aluminum Beta match wires and fastened with a stainless
> steel nut and bolt.
> Will all these dissimilar metal junctions cause any problems?  I do not
> own an amplifier, so the most RF it will see is 100 watts, minus feed line
> loss.
> Thanks for any opinions,
> Barry - W1HFN
>
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