[Amps] copper vs steel /SS /brass conductors in a HF tank circuit

Carl km1h at jeremy.mv.com
Tue Mar 22 09:07:22 PDT 2011


I use silver solder to bond copper strap and tubing and then SS hardware 
just to add mechanical strength and mounting as needed. Silver plating is a 
complete waste of time and money below UHF unless you are into pretty photo 
ops.....

Carl
KM1H




----- Original Message ----- 
From: "Rob Atkinson" <ranchorobbo at gmail.com>
To: <amps at contesting.com>
Sent: Tuesday, March 22, 2011 11:42 AM
Subject: [Amps] copper vs steel /SS /brass conductors in a HF tank circuit


> steel and s.s. are ferrous metals; they heat up with enough RF
> current.  Too much R.  OTOH if you look at conductive properties of
> silver and copper (undergraduate introductory physics book) they are
> so nearly the same that copper strap is good enough; silver just looks
> pretty and impresses people.
>
> 73
>
> Rob
> K5UJ
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