Ive been stretching copper since 1967 with lawn tractors since buying my
first home; 8 acres and about 3 had to be mowed.
I suspect well pump wire may hard drawn but I'll give a small piece a test
first with a vise and comealong.
Carl
KM1H
----- Original Message -----
From: "Jim Brown" <jim@audiosystemsgroup.com>
To: <topband@contesting.com>
Sent: Thursday, September 04, 2014 12:05 PM
Subject: Re: Topband: Outdoor rope suggestions
On Thu,9/4/2014 8:10 AM, Carl wrote:
As far as the antenna wire it will likely be #10 or 12 solid deep well
motor wire as I have a lot of it salvaged for the asking back when copper
was still cheap.
GM Carl,
Be prepared for any copper wire to stretch under the sort of tension that
I am using and that you plan to use. One of my high dipoles is an 80/40
fan that I built about six years ago with #10 stranded THHN. Every couple
of years, I have drop it and cut a foot or two from each end.
Hoping to minimize that, I've been buying #8 solid copper from Home Depot
and stretching it in the hope of making it hard drawn. W6GJB and I tie one
end to a tree, the other to the trailer hitch on his pickup, and slowly
pull until it breaks. We get roughly 10-15% stretch. About six months ago,
I used some of it to add a reflector to one of my 80M dipoles, and pulled
the tension tight. It's sagged quite a bit. I haven't measured it since.
73, Jim K9YC
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