Re: Toroid construction

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

Original poster: "Marry Krutsch by way of Terry Fritz <twftesla-at-qwest-dot-net>" <u236-at-earthlink-dot-net>

Hi Ed,

	Personally, I do cover my toroids with Al tape.  I file/sand/hammer
;-)) the joint down to the point of flushness with the rest of the
ducting.  Once covered with tape, the joint isn't visible.  I've heard
of people filling the ridges in with light weight spackling compound
before covering the toroid with tape, but I haven't tried it.  Maybe I
will next time.  Supossedly the result looks REALLY nice.

	Some people don't cover their toroids with tape, so it's just a matter
of preference.  I suppose a good tape job increases the breakdown
voltage a bit, and definitely makes it look better IMO.  I use a light
bulb to rub the seams of the tape down, a method I first saw on Greg
Hunter's site (I think).

Have fun,
Winston K.

Tesla list wrote:
> 
> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Esondrmn-at-aol-dot-com>
> 
> In a message dated 9/18/02 6:36:34 AM Pacific Daylight Time, tesla-at-pupman-dot-com
> writes:
> 
> >
> > Hi Ed,
> >
> >     I don't stretch the ducting out all the way first.  I leave it alone
> > (compact form), then bend it around whatever is going to be the center.
> > It stretches itself according to the size of the form, and the result is
> > very even.  This way it's also more ridged, and resists dents better
> > than fully stretched ducting.
> >
> >     I don't use (not yet anyway) forms for my toroids.  I find it easier
> > just to bend them into a circle on a flat surface (concrete driveway).
> > I then put cinderblocks in four places around toroid, which keeps its
> > shape while I wrestle the ends together and attach them with 5 min
> > epoxy.  Sometimes the cinderblocks scuff the toroid up a bit, but it
> > makes no difference if it's going to be covered with Al tape.  I usually
> > sand the ends a bit to help the epoxy stick, too.
> >
> > Good Luck,
> > Winston K.
> 
> Winston,
> 
> Thanks for the info.  That brings up another question - do most folks
cover the
> semi-rigid aluminum with aluminum tape to make it smooth - or just leave
it as
> it?
> 
> Thanks, Ed Sonderman