P.S. Anytime you have a mechaical/electrical joint add some "Penetrox".
----- Original Message -----
From: "John E. Cleeve" <email@example.com>
To: "'Tower and HF antenna construction topics.'" <firstname.lastname@example.org>
Cc: "'Tower and HF antenna construction topics.'" <email@example.com>
Sent: Wednesday, April 14, 2010 5:37 AM
Subject: Re: [TowerTalk] Hygain 18AVT trap for 20mtr/40mtr
> Hello Bob,
> I have used, and still have and 18AVT/WB which has served me well
> for many years, both in the UK and abroad. However, there have been trap
> problems, but all off which were repairable.
> To get to the inside of the trap assembly, you undo the self tapping
> screw which fixes the outer cover of the trap to the antenna element
> assembly, then you rotate the inner plastic spacer at the bottom of the
> trap, until you can slide the entire cover etc. down and away from its
> original position.
> This will expose the inductor, and at each end of the inductor you
> will find a self tapping screw which connects the inductor wire, at each
> to the antenna element. In my example this self tapping screw originally
> not made of stainless steel, and it did not have a washer beneath the head
> of the screw, and so, on assembly the screw head "bit" into the aluminium
> the inductor wire, and eventually the rust from the screw and the stress
> the inductor wire, which caused the inductor wire to fracture at the screw
> head/wire contact, that caused the problems I experienced. There is a
> similar situation at each end of the 80m top loading inductor too.
> So, I suggest you obtain some new stainless steel self tap screws,
> plus washers. Obtain some aluminium wire of the right diameter, and simply
> rewind the inductors, only a few turns each, in grooved formers, carefully
> tighten the new self tap screws and then coat the junction of the
> screw/washer/inductor wire with a non hardening insulation, and then
> reassemble the outer covering, and you should be back in business.
> Sincerely, John. G3JVC.
> -----Original Message-----
> From: firstname.lastname@example.org
> [mailto:email@example.com] On Behalf Of Bob AD5VJ
> Sent: 14 April 2010 03:08
> To: firstname.lastname@example.org
> Subject: [TowerTalk] Hygain 18AVT trap for 20mtr/40mtr
> I was given an old Hygain 18avt vertical and had plans on mounting it atop
> my tower since it is low profile and does well in the wind. But I just
> to Hygain's website and it appears they don't stock parts for it.
> I am needing the 20 meter and 40 meter traps anyone have any idea where I
> can find them - Google did not find anything, unless I didn't put in the
> right words -- I just Googled "Hygain assy (and then the 870 number in the
> Bob AD5VJ
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