[TowerTalk] hy-gain th6 trap rebuild

[chris casey]

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 at 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 at gmail.com>
> To: towertalk <towertalk at 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
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-- 

-Chris