I concur fully with Bob.
In my opinion, these are the most versatile tuners ever built.
Forget Johnson Viking, Palstar, and all the rest.
The ARRL Labs has tested a slew of tuners in the past 20 years and I have
almost ever test they ever made included in my Matchbox Shootout
<http://www.dj0ip.de/antenna-matchboxes/matchbox-shoot-out/> (same link that
Bob posted).
There is one test of remote tuners that I haven't finished uploading, but other
than that, the information is complete.
Only one caveat: never ever, no nay never, use the crappy built-in balun that
Ten-Tec put in the tuner.
It is worthless! TOTALLY WORTHLESS!
Just build a Simple-Simon d-i-y external balun, like shown here:
http://www.dj0ip.de/balun-stuff/tuner-baluns/d-i-y-tuner-balun/
NEVER USE A 4:1 BALUN for our primary tuner balun.
Experts who agree with that: G3TXQ, W8JI, VK1OD . . . and of course, me.
Full justification is found here:
http://www.dj0ip.de/balun-stuff/tuner-baluns/
AND be sure to follow and read all of the links at the bottom of the page.
People still claiming a 4:1 current balun is the better choice are no different
from the scholars in 1493 who were still claiming the world was flat!
(hi)
Final comment: if you run high power, do the capacitor mod. Since we are
limited in Germany to just 750w and my amp only runs 500w, I have never
bothered, though I did purchase the doorknob capacitors and store them in my
junkbox, just in case.
73,
Rick, DJ0IP
(Nr. Frankfurt, Germany)
-----Original Message-----
From: TenTec <tentec-bounces@contesting.com> On Behalf Of Bob McGraw K4TAX
Sent: 20 July 2018 21:31
To: tentec@contesting.com
Subject: Re: [TenTec] FOR SALE: 238 Tuner
These are really good tuners. They handle lots and lots of power and have a
very wide matching range.
And they are efficient in doing so. In other words, they do not incur as much
loss as many of the commercial T match tuners.
See <http://www.dj0ip.de/antenna-matchboxes/matchbox-shoot-out/>
http://www.dj0ip.de/antenna-matchboxes/matchbox-shoot-out/ for details.
73
Bob, K4TAX
On 7/20/2018 2:10 PM, Barry N1EU wrote:
> I've got a really nice 238 tuner for sale. Photos are viewable here:
> <https://photos.app.goo.gl/FbvALuguQcF6iwj37>
> https://photos.app.goo.gl/FbvALuguQcF6iwj37
>
> It includes manual and a new dial restringing kit. However, the
> current dial string is in excellent shape.
>
> $250 and I'll split shipping costs with the buyer. Please reply directly.
>
> 73, Barry N1EU
> _______________________________________________
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