Re: PVC Wire for a secondary?

["Jason R. Johnson" <hvjjohnson13-at-xoommail-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Tesla List wrote:
 > Original Poster: "D&M's High Voltage" <dmshv.davmckin-at-gte-dot-net> 
 > 
 > David,
 > 
 > I've used 3 KV PVC insulated wire for a secondary for a big coil
 > that I built about 10 years ago.  It was a 20" dia. x 45" winding
 > length (about 50" for the overall form).  It was 14 Ga. stranded
 > and had a total of 262 turns.  This may break all the rules (very
 > high Q, few turns, high primary currents, and a 7/8" thick very
 > heavy secondary form that was PAINTED BLACK) but it
 > produced solid 12 foot sparks.  It had 5 acrylic disks down
 > the middle and to the horror of many people, I brought the wire
 > to the HV terminal INSIDE the form.  I urethaned and filled in
 > the space between the wires, and sanding between coats, the
 > secondary to the point that it was very smooth surface (about
 > 40 coats of urethane.  One of the great benefits from doing all
 > this was that there was absolutely no corona from the top turn
 > of the secondary coil - everything worked great!  I bet that you'd
 > have great luck using the PVC wire.  Go for it!
 > 
 > David L. McKinnon
 > D&M's High Voltage
 > 
 > 

What were the rest of the specs on your coil (ie primary capsize, power 
supply, toroid size, etc.) I'm sure I'm not the only one who's interestd
in some of these details.

Jason Johnson

 > 
 > ----- Original Message ----- 
 > >From: Tesla List <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Friday, June 09, 2000 3:19 PM
 > Subject: PVC Wire for a secondary?
 > 
 > 
 > > Original Poster: "David Mills" <dave-at-g7uvw.freeserve.co.uk> 
 > > 
 > > Hi all,
 > > 
 > > Are there any major disadvantages in using PVC covered wire for a
 > > secondary.
 > > 
 > > The only problem I can forsee is that the capaciance of the secondary
 > > will be altered due to the thicker wire insulation spacing the turns out
 > > more.
 > > 
 > > Any ideas / anyone done this?
 > > 
 > > Cheers
 > > 
 > > Dave
 > > 
 > > 
 > > 
 > > 
 > 
 > 
 > 


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