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Re: [TowerTalk] inductance of tubing vs bar or strip

To: <n4zr@contesting.com>, "TowerTalk" <towertalk@contesting.com>
Subject: Re: [TowerTalk] inductance of tubing vs bar or strip
From: "Steve W3AHL" <w3ahl@att.net>
Date: Tue, 18 Aug 2009 09:29:24 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Try  http://www.k7mem.150m.com/Electronic_Notebook/inductors/wire_strip.html

For a strip not over a ground plane, just set the height/thickness to some 
large distance (like 36 inches).

Select the Inductor menu on the left to calculate round wire inductance.

As an example a 12" long 1.5" wide strip has an inductance of about 0.046 
uH.  A 1" round conductor (about the same surface area as the strip) is 
0.148 uH (about 3x the strip).

Steve, W3AHL


----- Original Message ----- 
From: "Pete Smith N4ZR" <n4zr@contesting.com>
To: "TowerTalk" <towertalk@contesting.com>
Sent: Tuesday, August 18, 2009 8:16 AM
Subject: [TowerTalk] inductance of tubing vs bar or strip


> Can anyone suggest where I can find a calculator for the inductance per
> foot of copper tubing compared to the same length of copper bar or
> strip?  I'm looking to understand the potential utility of using
> soldered copper tubing for a ground bus, as compared to copper 
> strip/strap.
>
> -- 
> 73, Pete N4ZR
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