[TowerTalk] Homebrewing Verticals

[Bruce Sawyer]

I'm curious if anybody on the reflector has found any readily-available and
easy-to-use material to function as the insulator between the base section
of a vertical and the active element for it.  I've looked at all kinds of
combinations of PVC water pipe, ABS pipe, PVC electrical conduit, etc., but
the standard sizes for aluminum tubing and for pipe materials simply don't
correspond the way we would require in order to use the pipe as an
insulator.  What we need, of course, is some kind of insulating pipe and two
sizes of aluminum tubing such that the insulating pipe will just barely fit
inside the larger piece of aluminum tubing and such that the smaller piece
of aluminum tubing will just barely fit inside the insulating pipe.
However, I'm sure there could be something in all the bins at my local Home
Depot that I've missed (e.g. a PVC coupling fitting).  Has anybody here
found a good solution for this?

Bruce, N6NT


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