[TowerTalk] TH6 dissimilar metals query

Michael Ryan mryan001 at tampabay.rr.com
Sat Apr 10 20:06:06 PDT 2010


I would make something out of aluminum.  You wouldn't want some kind of
'dissimilar metal thing' going on I would think. Can't be that hard.
= Mike

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Barry Fox
Sent: Saturday, April 10, 2010 11:06 PM
To: towertalk at contesting.com
Subject: [TowerTalk] TH6 dissimilar metals query

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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