[TowerTalk] toroidal BALUNS

N7mal n7mal at citlink.net
Sat Jul 26 04:08:30 EDT 2008

Bob here is the technical info: I'm an ole-fart ham of 50 years and in that 
time have accumulated a lot of krap. A part of the krap is a bunch of misc. 
size torroids. The one I'm currently using is 3 1/4 inches in dia and a 
little more than a quarter of inch thick. I have no idea of the type of 
material other than it is a torroid. In its current configuration I'm using 
14 turns of wire. This works/tunes perfectly on 160-20. On 20-10 the tuning 
is very, very, different than when the open wire line is connected directly 
to the tuner.  I am using the 600 ohm open-wire line from W7FG. I have 
several more torroids to chose from, some slightly larger and some smaller. 
Hopefully I'll find one that satisfies me.

Everyone in the world is
entitled to be burdened
by my opinion

----- Original Message ----- 
From: AD5VJ Bob
To: 'N7mal' ; towertalk at contesting.com
Sent: Friday, July 25, 2008 22:51
Subject: RE: [TowerTalk] toroidal BALUNS

Hi Mal

No problem, I understand COMPLETELY and AGREE with you whole heartedly as 

Thanks for the information, what have you used for the Toroid as far as 
diameter, material, manufacturer, ect.


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