SISG Update

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>

Hi,

I have been real busy with the SISG )

http://drsstc.com/~sisg/files/SISG.pdf

I "originally" started out to make a "little" solid state disruptive 
coil for research use. Done now!!! )

http://drsstc.com/~sisg/files/SISG-coil/SmallSISGCoil.pdf

http://drsstc.com/~sisg/files/SISG-coil/SmallSISGCoil-Pictures.zip

It is perfect ))) Never changes, always there, runs perfectly 
consistent!!! Prolly lasts forever too!! Very precise parameters!!!

But being a "little friendly coil", it is not a big sparker... Can 
only jump a foot... Don't want to fry the $4000 scope and stuff...

So I guess we need a "bigger" sparker >:D

Preliminary plans are here:

http://drsstc.com/~sisg/files/BigSISGCoil/PIRANHA.pdf

A single MOT coil about 18 inches high that should do 30 inch sparks. 
It uses a new DC MOT charging circuit that seems cool so far:

http://drsstc.com/~sisg/files/BigSISGCoil/NiceTopo-01.pdf

The file is out of date in that the AC inductor is useless...

The system should scale right up!!! Like to four MOTs >:-))) The 
resistors cooking off power is a pain. Steve Conner is working that 
along with triggering )

I have determined that simply varying R4 will "never" get to first 
notch quenching. The voltage drop on the gate is too slow (e^(-t/RC)) 
and the currents needed over time or too high for the curve. No 
chance at all... So that will take "more"... Not much power in the 
gate so a 2N2222 could drop it like a rock...

Interesting that the high primary "Q" of the SISGs low loss is now 
being put to giant primary cap values.  Primary RMS current is pretty 
high too!!  I just stuffed in primary capacitance for power at the 
expense of Q figuring that everything happens "soon in the 
function"... That is a good formula proven over decades :-)

I fiddled some with a new SISG board. But the costs were high and 
Mark Dunn's boards are super fine :-))

http://drsstc.com/~sisg/files/BigSISGCoil/Piranha-1.gif

http://drsstc.com/~sisg/files/BigSISGCoil/PIRANHA-PartsList.pdf

http://www.teslaboys.com/SISG/

Best to save the trouble and cash for more important stuff now... 
Like IGBTS in bulk ) Get the leaded versions for 1/2 price!!!!

So that is what I know.... Parts coming in this week... "Nice!!" 
source for "new" microwave parts here ))

http://www.amiparts.com/consumer/catalogindex.htm

(put mouse over "by Part" for lists)

I just got my stuff from them and very fast too!!!   Screw E-bay )

Cheers,

Terry