Re: PVC secondaries

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

Original poster: "rob by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rob-at-pythonemproject-dot-com>

Tesla list wrote:
> 
> Original poster: "Loudner, Godfrey by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <gloudner-at-SINTE.EDU>
> 
> Has anyone ever dehydrated a piece of PVC under laboratory conditions to
> determine the amount of water retention? If RF-losses of PVC are high, it
> seems like RF-heating would dehydrate the PVC form. What is the evidence
> that PVC is a high RF-loss material? To me, high loss means that significant
> amounts of energy from the electromagnetic field is converted to heat
> energy. I have not seen any of my PVC forms attempting to meltdown during
> tesla coil operation. Maybe these charges against PVC are myths.
> 
> Godfrey Loudner
> 
> > -----Original Message-----
> > From: Tesla list [SMTP:tesla-at-pupman-dot-com]
> > Sent: Friday, July 05, 2002 12:29 AM
> > To:   tesla-at-pupman-dot-com
> > Subject:      Re: PVC secondaries
> >
> > Original poster: "Dale Nassar by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> > <dnassar-at-i-55-dot-com>
> >
> > Greg,
> > PVC is such a popular coil form because it is cheap and easy to
> > find.  Otherwise it is not a good Tesla secondary due the the high RF
> > losses of PVC at these frequencies--also it holds water.
> >

I've put pieces of ABS in a microwave.  They get just slighly warm after
a couple minutes.  So if they have little loss at 2.5Ghz, its likely to
be insignificant < 1Mhz.  But then the microwave would drive off any H2O
present.  Rob.

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