Good point, Arne.
I was looking for first-order estimates of price, not final design.
Tubing is priced by the pound. So using thinner wall would save some
money.
.058 wall seems a tad light to me, by the way, but I see the clearance
issue.
Jim/n2ea
Let's MAKE it a great day!
Jim Jarvis, MBA, President
The Morse Group, LLC
732 548 5573 office 908 410 9130 cell
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On Mar 23, 2009, at 4:03 PM, N7KA@comcast.net wrote:
> 1.7500" od with 0.125 wall will not telescope into a 2.00 od with
> 0.125wall. There is no clearance. That is why we use tubing in
> 1.25 od increments with 0.058 wall to give a o.009 inch clearance
> to telescope.
>
> Arne N7KA
>
>
> ----- Original Message -----
> From: "jim Jarvis" <jimjarvis@optonline.net>
> To: towertalk@contesting.com
> Sent: Monday, March 23, 2009 7:20:51 PM GMT +00:00 Monrovia
> Subject: Re: [TowerTalk] 67' vertical
>
>
> I just got pricing from Bethlehem Aluminum for a nesting tubular
> vertical.
>
> .125" wall, 6061-T6, in diameters from 2.25 to 1.00, 12' lengths
> ran around
> $225 plus tax. That's without any clamps, cleanup, cuts or
> shipping. Quantity one.
>
> Makes the radio vendor pricing look fairly reasonable, eh?
>
> If you needed to UPS it to your site, you'd be constrained to 7'
> lengths.
>
> If I were building a 4 square, I might look at doing it with
> Bethlehem, particularly
> since they're only an hour away. (they have distribution sites
> around the NE, though).
>
> But the DX Engineering base looks pretty snazzy.
>
> N2EA
>
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