You can use PVC sch pipe and fittings to make
a 2 inch to 1 1/4 inch transition. Slit the
ends and insert the aluminum tubing, then clamp
with hose clamps. Tape up the joint with aluminum
tape to make it conductive. For the 1 1/4 inch
side, you might want to use schedule 80 if you
can get it.
Since "1 1/2 inch" PVC is 1.9 on the outside, you
can alternately have the 2 inch aluminum go over
the outside of 1 1/2 inch PVC and then transition
to 1 1/4 as above.
There are various ways to do this if you think
about it and spend some time browsing the plumbing
section of your hardware store.
Rick N6RK
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com]On Behalf Of Steve London
> Sent: Thursday, April 29, 2004 6:26 AM
> To: towertalk@contesting.com
> Subject: [TowerTalk] Tapering from 2" to 1 1/4"
>
>
> For an antenna project that I am working on, I need to go directly from 2"
> OD to 1 1/4" OD tubing, without any intermediate tapering. I could put 5
> sizes of tubing inserts to make the jump. Short of having a chunk of
> aluminum custom machined, is there a better way to do this ?
>
> Thanks,
> Steve London, N2IC/5
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers",
> "Wireless Weather Stations", and lot's more. Call Toll Free,
> 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|