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Re: [Amps] grid fuses

To: "Roy Koeppe" <royanjoy@ncn.net>,"Amps Reflector" <amps@contesting.com>
Subject: Re: [Amps] grid fuses
From: "Tom W8JI" <w8ji@w8ji.com>
Date: Fri, 21 Jul 2006 16:38:59 -0400
List-post: <mailto:amps@contesting.com>
> How about say, five or six number 24 gauge wires in 
> parallel, forming a
> skeleton strap? You know, inductors in parallel formula.

That's how a solid strap works.

RF current pushes out to the edges. The amount of inductance 
is directly related to the flux surrounding the conductor, 
and since the flux is spread out the inductance per unit 
length is much less. Of course the current concentration at 
the strap edges makes resistance increase over even current 
distribution , but the inductance drops.

A skeleton strap would be no better at high frequencies, and 
worse at low frequencies and dc.

73 Tom




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