Re: Secondary Winding Results

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Mark W. Stolz by way of Terry Fritz <twftesla-at-qwest-dot-net>" <mark_w_stolz-at-hotmail-dot-com>

Ed,

That might be the case.  All I know is 4" output with black PVC, 26" ouput 
when coil redone with white PVC.  Same topload, same tune point on primary.

Mark Stolz
Houston, TX


>Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><evp-at-pacbell-dot-net>
>
>Tesla list wrote:
> >
> > Original poster: "Mark W. Stolz by way of Terry Fritz
><twftesla-at-qwest-dot-net>" <mark_w_stolz-at-hotmail-dot-com>
> >
> > Dan,
> >
> > Yes, black PVC is bad.  A friend of mine wound a 4" on it and got maybe 
>4"
> > of output using two 15/60s as input. :-(
> >
> > Mark Stolz
> > Houston, TX
>
>	There may well be different types of black PVC pipe around, but this is
>quite contrary to my experience.  I've wound a number of RF coils on the
>stuff, with no evidence of losses.  Q is as high as with white PVC or
>polystyrene and seems unaffected by the material of the form. Typical
>geometry is length twice diameter, frequency range from 550 kHz up to at
>least 30 MHz.
>
>Ed
>
>