I want to make a VHF receiving dipole with say 1/4" tubing. Can you buy
plastic dipole centerpeices? TIA.

"Richard" wrote in message
...
I want to make a VHF receiving dipole with say 1/4" tubing. Can you buy
plastic dipole centerpeices? TIA.


I mean a plastic center which has socket holes, which you push the tube
into.

Richard,
I haven't seen anything like that sold commercially,
but I don't see why you couldn't make one. Ought to be
able to find a source of plastics on the internet or
locally, maybe. Drill the holes you need and half way
there.
'Doc

"'Doc" wrote in message ...


Richard,
I haven't seen anything like that sold commercially,
but I don't see why you couldn't make one. Ought to be
able to find a source of plastics on the internet or
locally, maybe. Drill the holes you need and half way
there.
'Doc

What material do you think?

Richard,
I would think that would depend on what you can find
available,
PVC, plexiglas, 'Delrin', who knows what else. I've used a
multi-
layer thingy of plexiglas glued together before, seemed to work
okay. So the question is 'what can you find?'.
'Doc

Richard,
I would think that would depend on what you can find
available,
PVC, plexiglas, 'Delrin', who knows what else. I've used a
multi-
layer thingy of plexiglas glued together before, seemed to work
okay. So the question is 'what can you find?'.
'Doc

I use the plastic from kitchen cutting boards for such parts. Strong and
easily available.

Torsten
N4OGW

"
Richard,
I haven't seen anything like that sold commercially,
but I don't see why you couldn't make one. Ought to be
able to find a source of plastics on the internet or
locally, maybe. Drill the holes you need and half way
there.
'Doc

What material do you think?


As the center of a dipole is low impedance almost any insulator will work.
If mounted outside pick something that will withstand the sun.

Why do that? You can use a single piece of pipe 1/2 wavelength and simply
gamma match it. No need for all the insulation worries.



"Richard" wrote in message
...

"Richard" wrote in message
...
I want to make a VHF receiving dipole with say 1/4" tubing. Can you buy
plastic dipole centerpeices? TIA.


I mean a plastic center which has socket holes, which you push the tube
into.

On Fri, 23 Jan 2004 22:07:12 -0000, "Richard"
wrote:


"Richard" wrote in message
...
I want to make a VHF receiving dipole with say 1/4" tubing. Can you buy
plastic dipole centerpeices? TIA.


I mean a plastic center which has socket holes, which you push the tube
into.

For 2 meters I'd use 1/2 inch copper pipe for the dipole and then a
plastic "T" would work for the center insulator. Just glue the pipe
in place.

Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

Absolutely. Van Gornden, Budwig, and many others. Check the Ham Radio
on-line retail catalogs...

73,
Mike KI6PR
El Rancho R.F. CA

"Richard" wrote
I want to make a VHF receiving dipole with say 1/4" tubing. Can you buy
plastic dipole centerpeices? TIA.