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If you have ever needed to break-up a set of guy wire on a tower or needed an insulator try this. Get a piece of white (non carbon) PVC pipe, schedule 40 or thicker, in 1.5 to 3 in diameter, 2 End caps to fit, 2 eye bolts 3/8", and 2 fender washers of the same diameter as inside the end caps.
Cut the pvc to the length you desire. Drill a hole in both end caps, to put the eye-bolts through, make it a snug fitting hole. Place the bolt in the hole and put the fender washer on it. Then add the nut for the bolt and crimp the threads after you have turned it on a ways. This will keep the nut from turning loose over time. Next, use PVC CEMENT, to glue the End Caps on the PVC tube and let it set for a few minutes.
Presto an Insulator for just about anything you need. If you think that they are not strong enough. try to pull it apart with a lawn tractor or other method. This makes One insulator
Thanks 73's, AA3PX
interesting stuff on your web page.
I take a different approach to inverted L HF antennas, I do 'em as
end-fed half waves. A wire which goes 60ft up and 60ft horizontal being
my favorite 3.5Mhz antenna. It's voltage fed, which means you don't have
to be very concerned about radials and such, a simple ground rod works
fine. And the current-carrying portion of the antenna is up in the air,
not next to the ground. Plus they fit inside small lots half the size
needed for a real dipole. The big downside is two 60ft high supports,
but I cheated, the vertex end is lashed to the 70ft tower and the other
end to a 30ft flagpole. The high current is still 'way up in the sky
even with the "drooping" end. Got my 200 or so countries on 80/75 with
350 watts output!
With any power involved you have to watch out for the hot stuff in the
tuner of course, but that's just a matter of wide-spaced tuning
Brian Kelly w3rv
HEY, Thanks Brian. 73's AA3PX