[TowerTalk] inductance of tubing vs bar or strip

Steve W3AHL w3ahl at att.net
Tue Aug 18 06:29:24 PDT 2009

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 at contesting.com>
To: "TowerTalk" <towertalk at 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
> New Articles Daily - the Contesting Compendium at 
> http://wiki.contesting.com
> The World Contest Station Database, updated daily at 
> www.conteststations.com
> The Reverse Beacon Network at http://reversebeacon.net
> _______________________________________________
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk 

More information about the TowerTalk mailing list