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Re: [Amps] RE : copper or silver in tank circuit?

To: "Mike Schatzberg" <>,<>
Subject: Re: [Amps] RE : copper or silver in tank circuit?
From: Karl-Arne Markström <>
Reply-to: Karl-Arne Markström <>
Date: Fri, 17 Jun 2005 21:02:39 +0200
List-post: <>
"While it is straight forward mathematics to calculate the depth of
penetration of RF current, at any given frequency, it suffices to say that
at HF, there is no penetration, and hence the currents flow within the
center of the conductor, rather than at the surface, or skin effect
currents, at the intended frequency of operation for HF amplifiers."

If you mean that RF currents flow in almost the whole cross-section of
a solid conductor, I beg to differ.
The skin depth at 3 MHz in a non-ferromagnetic conductor will be about 0,04 mm 
(1,5 mils)



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