I had a TH3 stored in the garage for about 20 years. When I went to put it
up most of the trap covers had cracked and most of the spacers inside were
either cracked or crumbled. The antenna was not even exposed to the weather.
It looks like a big job to replace those spacers.
73
Gary K4FMX
> -----Original Message-----
> From: towertalk-bounces@contesting.com [mailto:towertalk-
> bounces@contesting.com] On Behalf Of chris casey
> Sent: Monday, April 02, 2012 2:43 PM
> To: GALE STEWARD
> Cc: towertalk reflector
> Subject: Re: [TowerTalk] hy-gain th6 trap rebuild
>
> I got a response from hy-gain in the meantime, 461466 "trap spacer" it
> appears is what I need. $0.98 each. So now I guess its a question of
> buying $16 worth or having the satisfaction of making them. If is a
> time-is-money issue then I'm sure $16 wins. I just don't want to put
> it together and find out my material is wrong.
>
> Thanks.
>
> On Mon, Apr 2, 2012 at 1:28 PM, GALE STEWARD <k3nd@yahoo.com> wrote:
> > I've seen these referred as "spider spacers" probably due to the
> design of
> > the cutouts in the center to clear the hardware, etc. I had a bag of
> these
> > that I obtained when I purchased a 14AVQ from a local ham. I'm
> therefore
> > assuming that these parts are available from MFJ/Hygain, or at least
> they
> > were at one time.
> >
> > I used up all the ones that I had when I rebuilt my TH6 last fall as,
> I too,
> > found most of them cracked and I wasn't able to reuse the ones that
> came
> > out when I open up the traps.
> >
> > I would like to buy a dozen more to keep on hand.
> >
> > Maybe someone on TT has some better info.
> >
> > 73, Stew K3ND
> >
> >
> >
> >
> > ________________________________
> > From: chris casey <cscvrp@gmail.com>
> > To: towertalk <towertalk@contesting.com>
> > Sent: Monday, April 2, 2012 12:15 PM
> > Subject: [TowerTalk] hy-gain th6 trap rebuild
> >
> > After getting out tower down and getting a look at it, several traps
> > were missing their internal spacers. They had disintegrated and fallen
> > out after the black caps did the same, the can then shorted across the
> > coil. Both the 10M driven traps had done this, and this helps explain
> > why the tuner in the rig would not be happy with 10M.
> >
> > So being cheap, I brought the 10M coils home and cut up an old cutting
> > board and made some new spacers. This seems to be fine business
> > mechanically. I did the whole put it in the microwave and see if it
> > gets hot to see if rf cares about it, it came out cold. Its HDPE.
> >
> > I need to make many more of these, another one exploded its spacers
> > when I pulled the trap apart this morning and several more look worse
> > for the ware after being exposed after losing their caps. But before
> > I do so, I wondered if anyone saw any fatal flaw in this plan?
> >
> > The spacers aren't identified anywhere in the antenna documentation,
> > only whole trap assemblies. I haven't asked hy-gain about them yet but
> > I will. Wonder if what I made wouldn't be a bit more sturdy.
> >
> > Thanks
> >
> > --
> >
> > -Chris
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> >
>
>
>
> --
>
> -Chris
> _______________________________________________
>
>
>
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