Re: Questions on coil secs

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

Original poster: "Brian by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ka1bbg-at-webryders-dot-net>

Hi, i would use the 4.5 inch tube with #28 wire for 24 inches, will give you
almost 6:1 and i have had good luck with that size with 3.5 inch tube as
well. i have a short coil 18 inches wound with #28 also and it performs
almost as well as the longer coil. i use 2 frying pans for the first toroid
and the bottom pan has angled side and the top looks just like a toroid. it
seems to keep the sparks up off the primary and with the flat strap primary
the secondary winding is flush to the primary. i have not had any trouble
with racing sparks if its tuned. cul brian f.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, March 16, 2002 11:51 AM
Subject: Re: Questions on coil secs


> Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<rheidlebaugh-at-zialink-dot-com>
>
> Just some thoughts on your coil. Why only 24" ? With that length I would
use
> about #28 secondary wire to get enough turns on the coil form. The small
> wire will require a good coating to avoid arc problems. The diameter is
your
> choice. I like larger, but your length is short so you will nead to watch
> your coupeling to avoid pri-sec arc. If you extend your toroid up away
from
> your coil a few inches you should avoid racing arcs. These are just my
> thoughts on your project.
>   Robert  H
>
> > From: "Tesla list" <tesla-at-pupman-dot-com>
> > Date: Fri, 15 Mar 2002 15:57:20 -0700
> > To: tesla-at-pupman-dot-com
> > Subject: Questions on coil secs
> > Resent-From: tesla-at-pupman-dot-com
> > Resent-Date: Fri, 15 Mar 2002 16:00:31 -0700
> >
> > Original poster: "jol degroff by way of Terry Fritz
<twftesla-at-qwest-dot-net>"
> > <joldegraff-at-hotmail-dot-com>
> >
> >
> > I have been trying to make a low cost coil for about a year now and at
> > first used an ignition coil because of the fear of getting shocked and
> > killed by an nst but have overcome that fear and have moved into the
> > wonderful world of nsts.
> > Anyway I got a 12000 volt 30ma nst from a local sign shop for free
(yeah)
> > And have a few questions.  First of all I went to home depot to pick up
some
> > 12 awg copper solid wire for a primary and happened to be in the section
> > with pvc/abs pipe and found a abs pipe that cost $14 had a diameter of
6"
> > and 24" long. I was wondering if this would make a better secondary than
my
> > 4.5" X 24" abs pipe if so what awg magnet wire would I need how much of
it
> > and about how many wine bottle caps would I need (just a rough estimate)
> >
>
>
>