[TowerTalk] 160 Inverted L Question

[Grant Saviers]

I've used PVC pipe, acrylic sheet, delrin rod, UV resistant nylon and UV 
resistant UHMW as base and element insulators.  There is not much 
voltage stress at the feed Z of what he is building.  At 160m the 
dielectric properties of any plastic are fine.  Grey PVC pipe 
(electrical conduit) is UV resistant, cheap, and widely available. 
Heavy wall PVC (schedule 80) is almost always a darker resistant material.

On 11/30/2018 19:25 PM, Jim Rhodes wrote:
> I would, of course, recommend the glass bottles.  If you can stabilize it
> properly a glass bottle would make a good insulator. Keeping it dry on the
> inside might be an issue, but short term no problem.
> 
> 
> On Fri, Nov 30, 2018 at 8:29 PM Mike Ryan <mryan001 at tampabay.rr.com> wrote:
> 
>>
>>
>>      Some years ago I ran across an article about someone using a COKE / pop
>> bottle as the base insulator for a 160 vertical. Others may have
>> other/better ideas. A friend is going to try to use roughly 40ft of metal
>> tubing vertical and wants to insulate from ground the vertical component
>> then run the remaining length of wire horizontal. ARRL Antenna books have
>> some ideas but did not see any with the thought of insulating the base in
>> mind.  Ideas ?   - Mike
>>
>>
>>
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> 
>