Big streamers in small basements

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

Original poster: "S & J Young by way of Terry Fritz <twftesla-at-qwest-dot-net>" <youngs-at-konnections-dot-net>

To basement lab TCers,

It's more work, but a twin TC in a basement works well.  Put breakout points
each facing the other toroid and the streamers arc between the toroids in a
controlled way, and can be much longer than the distance from one toroid to
ceiling or floor.  And as a bonus, each TC acts as a good RF "ground" or
counterpoise for the other TC, allowing one to skimp on an RF ground.  Twins
also allow you to use less primary turns on each primary since they are
connected in series.
--Steve Young

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, September 07, 2002 11:14 AM
Subject: RE: Designing BIG Secondary Coil


> Original poster: "Dave Hartwick by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <ddhartwick-at-earthlink-dot-net>
>
> Mark,
> Interesting question. I do have considerably more horizontal room, but I'm
> not sure of what horizontal mounting would achieve. I have thought about
> ceiling mounting. If I can get the system to behave properly, this should
> give me another foot, the distance from the concrete floor in which the
> primary now resides. (This is probably too close. The tuning is broad,
> making me suspect compromised Q)
> Dave
>
>
>
> Original poster: "Mark Fergerson by way of Terry Fritz
<twftesla-at-qwest-dot-net>"
> <mfergerson1-at-cox-dot-net>
>
> Tesla list wrote:
> >
> > Original poster: "Dave Hartwick by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <ddhartwick-at-earthlink-dot-net>
> >
> > Dr.,
> > I was probably incorrectly assuming that space winding improves
> performance
> > because of reduced inter-turn capacitance. I've never experienced
> inter-turn
> > insulation breakdown, though I know it occurs.
> >
> > Regarding secondary dimensions: I've got 7 puny feet of vertical space
to
> > work with in the basement. I think I'm stuck there--wife and neighbor
> > factors. So I was thinking about 12 or more inch dia form, but not more
> than
> > about 24" tall. 2:1 aspect ratio or less. The topload will have to be
> > elevated somewhat.
>
> <snip>
>
>   How long/wide is the basement? Can you
> lay your coil sideways?
>
>   Mark L. Fergerson
>
>
>
>
>
>
>