Re: SSTC Fres

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

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


Yeah, thats about right.  My calculations say about 98kHz so its right on.

When the coil isn't outputting streamers, it produces the most RF power
which as you noted energizes your tubes better and also causes you to get
burns from
anything metal in the vicinity.

The Captain



 > The sec coil is 6.3"dia 17" high wound with 0.2mm wire, top load is 6x2"
 > abouts, coil itself is actually 113khz or so without topload though ive
 > never ran it without it so its 107, I know these figures are correct since
I
 > connected the SSTC and my signal generator to my scope and adjusted the
 > frequency until they both matched on the scope, sig-gen has digital
readout,
 > I thought it would come in handy when I brought it a couple of years ago
 > since it requires no math to work it all out ;-)
 >
 > Chris
 >
 >
 >
 >
 >  >
 >  >
 >  >  > Hi all,
 >  >  >
 >  >  > WIth my SSTC I have a resonante frequency of 107khz, which gives for
 >  > example
 >  >  > 4" arcs and draws 4amps.... Now if I run at 136khz it works exactly
the
 >  > same
 >  >  > though RF power seems to be less ( not good for lighting tubes ) but
 > still
 >  >  > gives the same spark output. Now if I run at 98khz current draw goes
 > down
 >  > to
 >  >  > 2amps and its hard to draw sparks but it works a lot better for
 > lighting
 >  >  > tubes. Actually it seems to electrify anything metal anywhere near
the
 >  > coil
 >  >  > ( I found that out after a few burns from my variac!).  I tried all
 > other
 >  >  > frequencies and 98,107,136 are the ones which do odd things, 107 is
of
 >  >  > course the correct coil frequency. Does anyone know why these
 > freqencies
 >  >  > does this ?
 >  >  >
 >  >  > cheers,
 >  >  > chris
 >  >  >
 >  >  >