Re: PVC Pipe - Plastic Wrap Coating

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>

Hi Karl,

At 03:58 PM 3/12/2005, you wrote:
> Hi Terry,
>
> Your plastic stretch wrap is a novel idea, but what about aesthetics?

They only seem to care about how pretty the "sparks" are :o))

> Do you do presentations with the wrap on, or do you have a nice shiny 
> poly-coated secondary ready for those.

I avoid the expensive pretty spun aluminum top loads too since when 
traveling things get beat up pretty bad.  The coils are what they are with 
plastic wrap and dryer duct ;-))  I think all my coils (even the pretty 
coated ones) now sport plastic wrap...  Once in a while someone is "under 
impressed" with a coil so I always bring along a copper pipe for "them" to 
"touch" the sparks with >:o)))

> Also, I noticed that you terminated the upper winding of your secondary 
> with a bolt and then a larger gauge wire for attachment to the 
> toroid.  Does this arrangement promote corona, or secondary breakout?  I 
> have had coils (probably badly tuned or overpowered) where breakout has 
> occurred just about where your bolt is.

I have not had a problem with it but his particular coil has a corona ring:

http://hot-streamer.com/temp/DRSSTC-top.JPG

The top load mount was from another coil that already had the 
ring...  Bolts do like to spray corona though if there is not a corona 
ring.  I also make my coils "tall" so winding to winding voltage is not high.

Cheers,

        Terry



> Karl
>
>
> On Mar 12, 2005, at 5:45 PM, Tesla list wrote:
>
> > Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>
> >
> > Hi Dave,
> >
> > I don't "paint" my coils anymore either ;-)  I do wind them "tight" so 
> > minor temp/humidity variations do not cause the windings to go loose and 
> > fall.  But for protection, I wrap them good with shipping stretch 
> > wrap.  All office supply stores have it.  It is like Saran wrap but 
> > heavier.  It protect the coil from physical damage very well and if it 
> > arcs up or gets damaged, you can easily pull it off and replace it!!
> > Here is my new little DRSSTC coil.