[Amps] plexiglas isolation in coils

[R L Measures]

On Jul 26, 2006, at 3:21 PM, Tom W8JI wrote:

>> I always found the micro wave oven test helpful in advance
>> when I had
>> materials to be crafted by someone else on a lathe or
>> mill.
>> Is there any material which would pass that test but fail
>> on HF?
>
> What I'm saying is life or suitability of materials or loss
> in a particular application depends on much more than just
> heating of the material on 2GHz.

Agreed.  Before using a plastic for an RF app., it's not a bad idea  
to go to the local plastics emporium and look at their data sheet  
under D-factor @ 10MHz.
>
> This was covered in detail in the ceramic capacitor thread.
>
> 73 Tom
>
>
>
>
>
>
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R L MEASURES, AG6K. 805-386-3734
r at somis.org