[TenTec] FOR SALE: 238 Tuner

[Rick at dj0ip.de]

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 at contesting.com> On Behalf Of Bob McGraw K4TAX
Sent: 20 July 2018 21:31
To: tentec at 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

> _______________________________________________

> TenTec mailing list

>  <mailto:TenTec at contesting.com> TenTec at contesting.com

>  <http://lists.contesting.com/mailman/listinfo/tentec> http://lists.contesting.com/mailman/listinfo/tentec

> 

 

 

_______________________________________________

TenTec mailing list

 <mailto:TenTec at contesting.com> TenTec at contesting.com

 <http://lists.contesting.com/mailman/listinfo/tentec> http://lists.contesting.com/mailman/listinfo/tentec