Re: Big streamers in small basements

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

Original poster: "Kurt Schraner by way of Terry Fritz <twftesla-at-qwest-dot-net>" <k.schraner-at-datacomm.ch>

Steve,

I strongly like to second your statement below! - The 200cm (6.6') twin 
sparks under:

http://home.datacomm.ch/k.schraner/movie1.htm

are produced with the outer rim of the toroids only 40cm (16") from the 
wall. The upper tangent on the toroids is 93cm (36.6") below the 
ceiling. However there is an insulating screen 71cm (28") above the 
toroids, preventing arcs to the ceiling. As a better alternative to a 
grounded wire mesh, against arcovers to the ceiling, those insulating 
screens were recommended early (1939) by A.Bouwers. Details may be had 
under:

http://home.datacomm.ch/k.schraner/hv_screen.htm

Cheers,  Kurt


Tesla list wrote:

>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
>
>><snip>
>>