This arrangement for a tuner that Ken speaks of is one of if not the finest
performing tuner I've ever seen or used.
I know there's a lot of folks that do not agree with Rich on may topics but
he's forgotten more about amps and tuners than most folks well ever need to
know.
Spend the bucks, build one and you won't regret it. I have one I built to
run on 160 M and 75 M AM, legal limit. Even with the AM rig running full
tilt boogie at 125% positive modulation, no arcs, no sparks when feeding a
full wave 160 M loop on 75 M. The #14 feedline does get warm however
because it will melt the frost off in the current spots during winter. SWR
doesn't change either.
73
Bob, K4TAX
----- Original Message -----
From: "Ken Klinedinst" <kbk@conknet.com>
To: <tentec@contesting.com>
Sent: Thursday, July 10, 2003 6:07 AM
Subject: [TenTec] Balanced Tuners
> I have used link coupled tuners, built from old QST articles, for 20
> years. About a year ago I was directed to this article authored by
> Richard Measures, AG6K. A true balanced tuner without a balun.
>
> www.vcnet.com/measures/bbat.html <http://www.vcnet.com/measures/bbat.html>
(this is not linked)
>
> This tuner also appeared in QST Feb 1990 with a variation published in
> QST Apr 2002
>
> My version does not have the small DC motors, belts or gears driving the
> twin rollers, but simply adjusted by two counter dials. Cost was about
> $150.00 which was for the two rollers and one variable capacitor.
>
> I run 600 watts output, key down, 160-10 (excluding the WARC bands, my
> amp does not cover these bands) meters to a 234', center fed with open
> wire, dipole. obtaining a SWR of 1:1 across each band. The same results
> are obtained on the WARC bands with 100 Watts output key down.
>
> Have any questions please email me
>
> Ken W1IRQ
>
>
>
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