Re: New SSTC Topology ready for release . . . up to 30MHz operation (tested successfully)

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

Original poster: "S & J Young" <youngs-at-konnections-dot-net> 

Great progress Captain!  One statement you have made a couple of times
puzzles me.  That is that corona gets noticeably quieter sounding as the
excitation frequency goes up, being hardly noticeable at 3 mHz and up.

Why?  We can't hear anything past 20 kHz or so.  I am hypothesizing that the
corona medium (air) is non-linear and we are hearing many beat frequencies
of the difference of the fundamental and many harmonics present in lower
frequency coronas.  The result is an approximation of white noise - hiss.

A company is marketing an interesting remote "loudspeaker" that projects
sound by means of two ultrasonic sound beams that converge at a distance,
and the non-linear effects of the air at the convergence point generate
audio difference frequencies that people can hear.  I am thinking the lower
frequency corona "hiss" may be a similar phenomena.  Comments will be
appreciated.

--Steve Y.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, September 06, 2003 3:27 PM
Subject: New SSTC Topology ready for release . . . up to 30MHz operation
(tested successfully)


 > Original poster: dhmccauley-at-spacecatlighting-dot-com
 >
<SNIP> This is exciting as audio modulated SSTCs must past the 3MHz
operating
 > frequency mark to reduce background hiss of the corona discharge.
 > >
 > http://www.spacecatlighting-dot-com
 >
 >
 > The Captain
 >
 >
 >