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>

Hi Dave,

not trying to translate Bouwers's text, it can be said, the screen to be 
of very simple construction.  It needs to be some insulating sheet, like 
impregnated paper (=Bouwers's) or "wave-form-hardplastic-roof" (=my one; 
from some garden supply supermarket (- spelling?? - sorry!)). It's 
hanging 22cm(~9") below the ceiling, and 71cm(28") above the TC's 
toroids. The hanger-insulators are wood. Please contact me off list, if 
you like me to translate Bouwers's text.

Cheers,   Kurt

Tesla list wrote:

>Original poster: "Dave Hartwick by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <ddhartwick-at-earthlink-dot-net>
>
>Kurt,
>Very interesting and yes, I've thought about a twin TC.
>
>Regarding the insulating screens, could you describe them. My German is a
>bit rusty.
>Dave H
>
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>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>
>>>
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