[TenTec] 450 ohm open line feed with ten tec tuner

[Dave]

I've made parallel line of two pieces of RG59 or RG8X, same length, 
taped together,   at tuner end, join shields, ground shields - at 
other end just outside house, join shields, weather proof -
connect tuner terminals to center conductors,  450 line to center 
conductors - you can coil it, twist it, lay it on metal, etc.  just 
use enough to get outside.  been very good

I have also made a choke balun of RG8 on big coffee can and directly 
connected ladder line to center and shield outside - been ok -

also use short piece of coax to outside then a remote 4 to 1 balun and 
ladder line.  Best balun, even at qrp has been Radioworks remote -
the LDG 4 to 1 is not as good, saturates easily.

my preference is the first, although all 3 work
Dave K8BBM

On Sun, 19 Oct 2003 20:11:37 -0400
MIKE BRYCE <prosolar at sssnet.com> wrote: 
> boys and girls..
> 
> several questions....
> 
> I just put up a center feed zepp with 68 feet of wire on each leg. 
> Feeding
> with 450 ohm open line..
> 
> now, it's been a while since I've used open line, but any ideas on 
> how to
> get it into the shack?
> 
> and, should I use a external balun with the 238 tuner to keep the 
> open line
> outside the shack?
> 
> or would the internal balun work better? but have the feed line 
> inside the
> shack?
> 
> 
> 
> 
> Mike Bryce, WB8VGE
> SunLight Energy Systems
> 
> http://www.seslogic.com
> http://www.theheathkitshop.com
> 
> 
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