[TowerTalk] TowerTalk , PVC pipe

[Hank P]

Thanks for the replies -- the stuff I looked at seems to be all pretty
much aimed at medical applications - and a few electrical apps
and its called multi-lumen . 

Also there is some stuff called cell-core drain and waste pipe but 
that appears to be a foam filling between two concentric pipes.


BUT in  the piece I have , the "interior tubes" 
are not round - they are closer to truncated triangles/trapezoid. The base
is about 0.140 inches and the top about 0.100 and height about 0.130 
and a very thin wall about 0.10(all inches) Then the center "tube"
formed from the tops of all the trapezoids is about 0.450 dia 
with a little hump at one of the cells . The OD of the tube is 0.990
anywhere I measure it so it’s a little loose in normal 1 inch od PVC fittings. 
The cells are not really extruded round tubes inside like most all
the "multi-lumen" tubing I have  found. 

This piece is incredibly stiff - and the reason I was interested is that
my 160 and 80 meter rx loop cross pieces   sag a lot after  a year in
the AZ sun and I was thinking it would also make a really nice
vertical member for the loop. (yes I know that the vertical piece could
be metal but I trust a non conductive piece more. 

Also might   make a nice non conductive boom for 2 and 432 antennas

This piece is 6 feet long and weighs 23.6 ounces so not really heavy.

Anyhow thanks for the repiles - at least now I know what to call it
and several places to call.  

Anyone interested in a jpg file of what it looks like end on , send me
a direct email and I will attach it in reply. 

73 Hank K7Hp



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