Gene is correct, but the bamboo arms will last even longer if they are
'cured' by putting them in a trough and covering them with marine
varnish. After a few hours, they can be removed and the varnish
allowed to dry.
I'm sure that the modern polyurethane finishes will do an even better job.
The bamboo spreaders will last a long time ... mine were up for over
ten years.
73
Don
N8DE
Quoting Gene Smar <ersmar@verizon.net>:
> Daniel:
>
> I'm afraid I'm going to be contrary to your <no wood> requirement with
> my suggestion. When I was first licensed in the 60s, many QST and Pop
> Electronic articles on construcing quads suggested using bamboo poles as
> spreaders. At that time they were obtainable from carpet stores; the carpet
> material was often shipped wound around such poles and the poles were then
> available at little or no cost. Later construction articles urged that
> these poles should be wrapped in fiberglass tape to prolong their useful
> life.
>
> This might not be a particularly appealing choice, especially if you
> consider having to wrap the bamboo in tape, but I throw it out there FWIW.
>
> 73 de
> Gene Smar AD3F
>
>
> ----- Original Message -----
> From: "Daniel Hileman" <n9wx@hotmail.com>
> To: "TOWER TALK" <towertalk@contesting.com>
> Sent: Thursday, January 28, 2010 7:07 PM
> Subject: [TowerTalk] Fiberglass Supplier
>
>
>
> Hi Everyone,
>
> I am wanting to homebrew a 2 element 20-10m quad...I have it all worked out
> in my head, but I was looking at Max-gain for fiberglass tubing for the
> spreaders, and they seem VERY expensive ($26.00/8' at 1".) So, anyone know
> a good fiberglass supplier or alternate ideas for spreaders that would be
> relatively professional grade, for a permanent type antenna, in other words,
> not wood.
>
>
> Thanks and 73,
> Daniel N9WX
>
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