I just repaired the boom of a F12 yagi (a neighbor, I think an XR-5) that broke
in the big snow we had up here. No problem making the damaged end round again
to insert a splice piece.
What I do is put some heavy grease on the threads and on the end pieces that
slide on the pressure pads. If the piece is badly out of round I tighten, tap
with a hammer around the circumference, tighten, tap, etc. until I get what I
want.
And I put a boom support on the antenna so it doesn’t happen again.
Ken K6MR
________________________________
From: Richard (Rick) Karlquist <richard@karlquist.com>
Sent: Wednesday, July 17, 2019 3:10:31 PM
To: Ken K6MR; Kim; towertalk@contesting.com
Subject: Re: [TowerTalk] correcting aluminum tube
On 7/17/2019 12:12 PM, Ken K6MR wrote:
> If it’s a reasonable size (around 2” or 3” or so) go to Harbor Freight and
> get an “exhaust pipe expander”. Put in the bad end, tighten, and it will
> make the end round again.
>
>
>
> Ken K6MR
>
Has anyone verified that this actually works?
I tried to use an HF exhaust expander on 0.050" wall
Al irrigation pipe and the screw became very hard to
turn yet nothing happened to the pipe. Did I do
something wrong? Seems like it should have worked.
Rick N6RK
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