RE: audio modulated SSTC

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

Original poster: humanb-at-chaoticuniverse-dot-com 

Hi Herwig, I would say the problem definatly was not
Frequency, as my grid modualted coil ran at around that
frequency, also. I was able to get decent audio, but
took much time messing with it. But after building one
of Dan's Plasmasonics, I have no interest in messing
with VTTC grid modulation. And the recent talk of rail
and plate modulation has got me real interested,
definatly the holy grail
of plasma audio!

Take care,

David Trimmell


On Tue, 10 Feb 2004 06:03:39 -0700, "Tesla list" wrote:

 >
 > Original poster: herwig.roscher-at-gmx.de
 >
 >
 > David Trimmell <humanb-at-chaoticuniverse-dot-com> wrote:
 >
 >  > Herwig, didn't you work on a very large audio
 > modulated VTTC some
 >  > years back? I think I have the right guy, if so how
 > did it fair?
 >
 > David,
 >
 > Yes, I had built a VTTC using a YU-204 = 4PR-1000A. I
 > managed to get
 > a brush length of 20", but despite of several
different
 > approaches,
 > the audio was very loud but its quality was not
 > overwhelming. The
 > reason probably was the low frequency of about 244
kHz,
 > the VTTC was
 > working on.
 > In the meantime I have learnt, that frequencies above
5
 > MHz should be
 > used if high quality audio is the goal, but
 > unfortunately I do not
 > know the reason for this barrier. My small plasma
 > tweeter operates at
 > 13 MHz and its audio quality is much better.
 >
 > In case, you need further details, please do not
 > hesitate to ask.
 >
 > Regards,
 >
 > Herwig
 >
 >
 > ---------------------------------------
 > Greed is the root of all evil!
 > ---------------------------------------