[TenTec] OT: Openwire Balanced Antenna Tuners (QST Test)

[Rick - DJ0IP / NJ0IP]

THANKS STEVE, I KNEW WE WERE ON DIFFERENT PAGES.

I ALMOST FULLY AGREE WITH YOU.

In fact I do it exactly like you do it (L-Network and external 1:1 balun),
but that's because I can't find (and can't afford to buy) the only matchbox
in the world I would rather have, the BIG BERTHA ANNECKE KW SYMMETRICAL
KOPPLER!  Annecke only built and sold 20 of these.  They are about as rare
as bird doo in a kuku clock.

73
Rick, DJ0IP

-----Original Message-----
From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Steve Hunt
Sent: Thursday, February 21, 2013 7:18 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] OT: Openwire Balanced Antenna Tuners (QST Test)

I was responding specifically to the comment from K4TAX:

"I'll take an air-wound inductor over a toroidal inductor any day, space
available.  The typical loss in an air-wound inductor is IR loss where a
toroidal has IR loss plus eddy current loss."

I didn't read that comment as applying specifically to balanced tuner
operation.

If you are asking what is my preference in tuners for twin feedline, it
would be an unbalanced L-match with a good 1:1 balun at the output. If that
L-match needed to be automated and use fixed value inductors, I'd happily
take iron-powder-cored inductors in place or air-cored inductors.

73,
Steve G3TXQ