[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.
73


MAL
N7MAL
BULLHEAD CITY, AZ
http://www.n7mal.com
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 
well.

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

Bob AD5VJ






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