RE: New Baby!!! SISG!! 2:52PM (MST) weighing in at 0.78 Oz / 900Volts at 800 Amps!!!!!!

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Mccauley, Daniel H" <daniel.h.mccauley@xxxxxxxx>


Yes, that is correct.  However with a 12kV, 60mA coil, you effectively
have almost 17kV charging the cap (peak of the 12kV AC), therefore, you
would need about 19 SISG units.

Dan



Do you have guidelines for applying this SISG.  For example, is this a
direct replacement for the static gap in my 12kV, 60 ma coil?  Would it
then be necessary to apply 12000/900 , or at least 14 SISG units in
series.  I must be missing something, cause that sounds real expensive.

Thanks,

FJA

-----Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx]
Sent: Thursday, May 11, 2006 7:40 PM
To: tesla@xxxxxxxxxx
Subject: New Baby!!! SISG!! 2:52PM (MST) weighing in at 0.78 Oz /
900Volts at 800 Amps!!!!!!


Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>

Hi,

The SIDAC/IGBT Spark Gap "SISG" was BORN today ;-))

Here is the first picture:

http://hot-streamer.com/temp/SISG-Born.gif

The inductor was 634nH, thus the fast ring down, (like a dead short
jumper wire) ;-))  260kHz with 600nF of capacitance firing at 900V.

"800 Amps" at "0.05 ohms" effective resistance ;-))  In most cases,
even the SUPER TO-247 will not need a heat sink ;-))  Mark at 460 BPS
will need little ones ;-))

Hehehe!! just scope pictures, but no "sparks"...  But us "scientists"
now that the "sparks are trivial now" :o))))

The modules work in series just fine and a single module can be "way
overloaded" with NO apparent damage!!  I drove 700 amps through the
old one many times and it lived just fine...
msnip....