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RE: Sealing Plexiglas



Ted,
Plexiglas may be inadequate as a shield from a Sec Spark Discharge.
It may serve to keep people from physically touching the innards, though.

Being a dielectric, Plexiglas is likely to channel discharges
 to people leaning against or near it.
People are simply another plate of the secondary capacitor separated by  
Plexiglas being a more dense (thus preferred arc path)
 dielectric than air.

I take advantage of the air/dielectric boundary affect to limit,
 i.e. 'control' discharges to 2 dimensions.
 
Use chicken wire mesh or similar, with continuous edge ground.
(else it may re-radiate induced sparks those close to the wire)
An advantage it will pass the full dynamics of the less harmful sound waves!

BTW I used my manual controlled bang battery powered DC TC
this Halloween with great success.
28" power arcs on demand.
Want a picture ?

Regards, Dale

-----Original Message-----
From: Tesla List [mailto:tesla-at-pupman-dot-com]
Sent: Monday, December 13, 1999 4:37 PM
To: tesla-at-pupman-dot-com
Subject: RE: Sealing Plexiglas

Original Poster: Ted Rosenberg <TRosen1-at-Tandy-dot-com> 

snip....

It's use is planned for a local Haunted House for next October. Between the
noise and the sparks it should scare the %$&-at- out of the patrons (who will
be kept an appropriate distance by plexi sheeting and 2x4 walls).

Regards, Ted
Snip............