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Topband: Fw: Re: Coax Choke Balun

To: topband@contesting.com
Subject: Topband: Fw: Re: Coax Choke Balun
From: Russ Tobolic <erusst@yahoo.com>
Date: Thu, 12 Nov 2009 05:49:13 -0800 (PST)
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Bill;
 
K4SAV mentioned that obtaining ferrite cores is sometimes a problem. Are you 
running high power thus the need for RG213?  I only run 100w and am using a 
clamp-on ferrite (mix 31) per K9YC's paper.  I use a Fair Rite P/N 0431173551 
which allows me to loop 6 turns of RG8X through the internal 0.75" opening.  
These are available from Newark as their P/N 96B5352 The cost is $5.28 each and 
there is no min order with Newark.
 
Russ, N3CO

--- On Wed, 11/11/09, K4SAV <RadioIR@charter.net> wrote:


Bill Gillenwater wrote:
> I need some suggestions, or the "go-ahead". I am getting ready to wrap 30 
> turns of RG213 around a 14" piece of 8" round PVC, for use as a choke on my 
> inverted L.  Is there a better way? 
The choke balun will work (depending on how much impedance you really 
need).   There are some advantages to using a ferrite core, but 
obtaining the core(s) is sometimes a problem. 




      
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160 meters is a serious band, it should be treated with respect. - TF4M

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