Re: Primary Size - 1/4", 3/8", 1/2" ? ? ? ? Supports creation

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>


> BTW, the blocks are machined across with a 90 degree ball nose cutter in a
> milling machine.  We usually make our blocks a standard 1 inch high x 3/4
> inch wide to support the primary.
>
> Dr. Resonance
>

Another way for those us who are not fortunate enough to have milling
machines is to do this to create your primary coil blocks:

1.  Cut your rectangular or square block pieces to the proper size.

2.  Mark the hole locations where the primary coil will sit in the supports
(remember you need to offset the holes as you go around)

3.  Drill the proper hole size in the center of the support at each location
to the size of the copper tubing.

4.  Now, once all the holes are drilled, use a scroll saw and make two cuts
from the end of the support to the drill holes and create a nice notch for
the primary to sit in.  Make it well enough and you even can make your
primary "snap-fit" into place.

Dan




>
>
> ----- Original Message -----
> From: "Tesla list" <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Sunday, September 15, 2002 3:01 PM
> Subject: RE: Primary Size - 1/4", 3/8", 1/2" ? ? ? ?
>
>
> > Original poster: "Dave Hartwick by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <ddhartwick-at-earthlink-dot-net>
> >
> > Just a note: My primary is made with 1/2" CU tubing and it is very
> difficult
> > to work with. I think quite a few guys have fired at  10 kW levels using
> > 1/4" without problems.
> > Dave H
> >
> >
> >
> >
> > Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> > <dhmccauley-at-spacecatlighting-dot-com>
> >
> > Just a quick question . . .
> >
> > Just finished my 10" x 45" secondary coil and need to create my primary.
> >
> > Right now I'd like to size my primary for current duty (up to 5kW) but
> also
> > for the future up to 10kW power.
> >
> > Some people told me 1/4" was fine, but I think this is too small?  What
do
> > you think?  1/4, 3/8 or 1/2"  or bigger????
> >
> > Thanks
> > Dan
> >
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