Re: winding the secondary

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

Original poster: "Michael Rhodes by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rhodes-at-fnrf.science.cmu.ac.th>

If you go to my home page
http://www.fnrf.science.cmu.ac.th/tesla/ScienceDay/index.htm
I show step by step construction of my coil (with images).  This coil was
built
in Thailand during monsoon seasons in an open machine shop thus high humidy
and high temperatures.  Had no problems with the coil performance at all.

--Michael

> >
> > Hi list,
> > I am getting ready to wind my secondary and I have been reading
different
> > approaches.  Brent Turner's book says if you use a plastic (PVC) pipe,
just
> > sand it and clean it, wind it and seal it with "several light coats of a
> > spray
> > acrylic or lacquer."  So he doesn't say it's necessary to seal it before
> > winding it.  Richard Quick on the other hand, says to bake it in an oven
> > overnight after wet sanding it and then coat it with polyurethane for
> > several
> > hours before winding it.  My questions: if you just dry sand the pvc do
you
> > need to worry about drying it?  How smooth does it need to be (I haven't
> > gotten
> > all the scratches and nicks out of it after sanding it quite a lot)?  Do
you
> > coat it again after winding?
> > Thanks for your time...
> > Jeff Johnson
> >