RE: "Gas burner" corona from STSG driver

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

Original poster: "John H. Couture by way of Terry Fritz <twftesla-at-qwest-dot-net>" <couturejh-at-mgte-dot-com>


Gary -

It looks like I'll have to check this again by redoing my tests.

John Couture

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-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Friday, January 04, 2002 8:22 PM
To: tesla-at-pupman-dot-com
Subject: RE: "Gas burner" corona from STSG driver


Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Gary.Lau-at-compaq-dot-com>

Be careful how you state this.  The terminal voltage of a Tesla coil is AC.
 The secondary oscillations are centered about zero volts.  Insulated
objects near the secondary will develop a DC or static charge deposited
upon them, due to the asymmetric conduction (a.k.a. rectification) of
corona.  This is what an electroscope will indicate.

Gary Lau
MA, USA


Original poster: "John H. Couture by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <couturejh-at-mgte-dot-com>


Allan -

Not correct. Tesla coils were used by hospitals to make X-Rays (DC needed)
until the thirties when other devices became available. Tesla said that
Tesla coils could produce DC because the negative output was greater than
the positive output. You can prove this by charging an electroscope with a
TC and checking the type of charge.

John Couture