Re: SSTC Break-Through - 5MHz operation for Ion Tweeter system

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

Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>


Right now, I'm only pushing less than 100W which ideally I'd like to keep
under 100W for tweeter operation.
Even at 5Mhz, there is just a very slight amount of corona hiss, however at
even higher frequencies, 10MHz+, corona hiss
is almost non-existant.  Higher freqencies are also necessary to make this
as small as possible.

Good to hear that your PlasmaSonic is working good.  0.5" of corona at 12VDC
input is impressive  Once you put 100VDC+ into it,
then it will get real interesting.

The Captain




 > Dan,
 >
 > That is awesome news!  I have a few questions: What kind of power levels
 > were you able to push through it?  Why the need for 10 MHz operation?  It
 > would seem to me that once you get above the threshold for noise from the
 > arc that higher frequency only complicates things, especially with solid
 > state power.
 >
 > Chris Arnold
 >
 > PS - I fired my PlasmaSonic SSTC for the first time tonight with a three
 > turn primary and 12 vdc input.  It drew around 5-6 amps and was able to
 > produce about 0.5" of corona into free air and a power arc over 1" long.
 > Pretty puny compared to what it will be doing, but still very nice for
only
 > 12 volts in.  Fres was approximately 300 kHz.  I'm going to try the audio
 > modulation feature later tonight.