I wonder how well the efficiency of the more recent balanced tuners compare
with a link coupled transmatch.
I am using a pair of Johnson Matchboxes...the 275 watt versions....to feed a
pair of loops.
The larger loop is fed at the top with twin lead and I open up the bottom
for use on 160, but am comtemplating homebrewing a link coupled transmatch
for that band.
----- Original Message -----
From: "Stuart Rohre" <rohre@arlut.utexas.edu>
To: <tentec@contesting.com>
Sent: Friday, July 11, 2003 10:15 AM
Subject: Re: [TenTec] Balanced Tuners
> Ken,
> About your tuner, it does have the cable RF choke like the original paper
> shows?
> Although not a "balun", that does choke off RF current from the outside of
> the shield of the input coaxial connection to the rig. The original paper
> is quite correct about using a solenoid wound coax cable as the optimum
> coaxial cable choke, and not scramble winding coax.
>
> However, I wonder if the most compact and equally effective 1:1 cable
choke
> is not the use of cores on the length of coax, which then can be about 14
> inches or less, (depending on the cores used).
> 73,
> Stuart
> K5KVH
>
>
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