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[AMPS] silver plate

To: <amps@contesting.com>
Subject: [AMPS] silver plate
From: Peter.Chadwick@gpsemi.com (Peter Chadwick)
Date: Wed, 3 Sep 1997 09:39:49 +0100
>Hi all, can anyone explain to me why silver plating is used to 
>decrease loses in tank circuits and so on.  Looking at the figures 
>there seems to be a very small difference in resistivity and skin 
>depth between silver and copper.  Is is to reduce losses due to 
>tarnishing perhaps?

That's my understanding. But apparently, not all silver platings are the
same - there's a 'hard' and a 'soft' plate, and one of them (and I can't
remember which) can actually reduce Q.

73

Peter G3RZP


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