RE: SSTC - experiments

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

Original poster: "Mccauley, Daniel H" <daniel.h.mccauley-at-lmco-dot-com> 


Yes, but the current self-resonant design you are using doesn't work for
half-rectified input.
It only works for CW (DC input) mode.

Dan


 > Ah, you see Dan, if you used a self-resonant design (just
 > kidding, it would
 > not be easy to make a feedback based audio SSTC) , then many
 > things are
 > possible, including the jaccob ladders ive built with my SSTCs.
 >
 > For some cool experiments see this:
 >
 > http://www.hot-streamer-dot-com/srward16/CapacitiveCoupling.htm
 >
 > also, other experiments in the SSTC index:
 >
 > http://www.hot-streamer-dot-com/srward16/SolidStateTeslaCoils.htm
 >
 > have fun!
 >
 > Steve Ward
 > >
 > >Shaun,
 > >
 > >I don't believe your Jacob's Ladder is going to work when driven by a
 > >SSTC. There are a few issues:
 > >
 > >1.  Tuning - The length of the rods used in a tesla coil acts as an
 > >additional capacitance to the topload
 > >of your coil.  If the arc broke out at the bottom, the wire
 > capacitance
 > >(stray to ground) may be less than 1pF.
 > >As it starts rising, this capacitance will increase.  And
 > initially when
 > >you turn the unit on, you will have the
 > >entire length of the rod to contend with.  Therefore, the SSTC may be
 > >tuned for a particular frequency, but depending on
 > >where the arc is with respect to the rod, the resonant
 > frequency of your
 > >resonator may change drastically.  As a comparison
 > >I use different sized rods (electrodes) on my PlasmaSonic
 > coils to vary
 > >the frequency.  A 4" rod vs. 16" rod may be as much
 > >as 5pF difference.  (See my PlasmaSonic Presentations for
 > more details
 > >on exact numbers)
 > >
 > >2.  Break-out.  The voltage is very high on an SSTC
 > (compared with NSTs,
 > >etc...)  You'll need to have some serious
 > >corona balls and corona protection in your circuit to
 > prevent arcs from
 > >breaking out on the top of the rods or elsewhere.
 > >
 > >Dan
 > >
 > >
 > >
 > > > Ok, so I have this SSTC working, 14 inch sparks straight
 > up from the
 > > > breakout point.  I'm going to try for longer sparks and
 > > > different type of
 > > > input power.  So far I've tried half wave rectified and full
 > > > wave rectified
 > > > power - 140vac from a variac.  I put a CD on a metal
 > stand onto of the
 > > > toroid and it started on fire and melted - Oops...... another
 > > > AOL cd bit
 > > > the dust, at least their good for something.  I want to make
 > > > a big jaccobs
 > > > ladder with it and maybe an ion motor.  What other
 > > > experiments have people
 > > > done with there SSTC.
 > > >
 > > > These things are really cool!
 > > >
 > > >
 > > > Shaun Epp
 > > >
 > > >
 > > >
 >
 >
 >