[Collins] Re: [Johnson] Re: Advantages/disadvantages of an "L" tuner circ...

[John W. Harden, Jr.]

One of my 160 meter antennas is an "Inverted U" that was originally described by
K8RRH in the famous "Minooka Special"
article by W9UCW in QST in the 1970's. In order do get it to resonate I use a
large Air-Dux coil at the base in series for resonance at 1.830 MHz. In addition
I have 1000 pfd vacuum variable to ground. I set the coil tap for resonance, and
tune the variable for minimum SWR. I have used tuners like this for years, and
one like this will easily handle several KW.

73 es best regards,

John, W4NU
Atlanta
(K4JAG 1959 - 1998)

Jamesnf@aol.com wrote:

> Actually, anything other than a balanced tuner is basically useless.  Coax
> fed antennas should be impedance matched to the coax at the antenna.
> Matching the coax to the transmitter in the shack doesn't do a thing for the
> performance of the coax or antenna.  It simply accomodates today's low range
> transmitter output circuits. And today's commercial unbalanced tuners using
> baluns to accomodate balanced lines are inefficient.   That leaves us
> homebrewing balanced tuners.  In my view, that's the only way to go.
>
> Jim W9TM
>
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