Re: Needed: SSTC History and Achievements

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

Original poster: "Eastern Voltage Research Corporation" <dhmccauley-at-easternvoltageresearch-dot-com> 

Thanks for the great info Terry.  I have spoken with Steve Conner a bit and
he has filled me in with a lot of the
OLTC stuff, but your file will be of great help also.

Once i compile this list, i'll post again here on the list and see if i can
get a good percentage of agreement among the
other coilers.  There will always be some disagreement, but as long as i get
a somewhat accurate representation of
the history.

Thanks again.

Dan


 > Hi Dan,
 >
 > Looks like the list is back on-line.  I have replaced four hard drives in
 > the last few weeks...  Qwest's mail servers are down at the moment...  I
 > guess it is computer repair season ;-p
 >
 > At 03:03 PM 6/8/2004, you wrote:
 > >Hello all,
 > >
 > >I'm trying to compile a historical list of SSTC achievements and its
 > >evolution.  In particular I'm looking to find out major accomplishments
and
 > >firsts in the field with names and dates (year).  I'm looking to use this
 > >information for a presentation I'm giving and also to document it
officially
 > >on my website.
 > >
 > >
 > >So far, I've come up with a basic historical framework which I've
gathered
 > >from some information from Richie Burnett and a few others.
 > >
 > >Please respond with all your comments, corrections, additions, etc... so
 > >that I can add them etc...
 > >Also, i made up the different generation names just in a feeble attempt
to
 > >organize different accomplishments.
 > >Also, if you think the categories are bogus, let me know also.
 > >
 > >First Generation SSTCs
 > >******************
 > >First SSTCs were made using TV flyback transformers (dates anyone?)
 >
 > Gosh!!  Probably when the first solid state TV flyback circuits came
 > on-line...  I am sure somebody was making sparks with the thing just to
 > play with (test) it...  That will be a tough one to be sure on...  Maybe
 > look for patents...
 >
 >
 > >Second Generation SSTCs
 > >*********************
 > >Duane Bylund's Magnifier driver using bipolar devices (dates?)
 > >Alan Sharp's work using MOSFETs and ferrites to base-feed secondary
 > >resonators (dates?)
 >
 > Better defined now...  Hopefully the folks involved are still around and
 > can fill in the comments.
 >
 >
 > >Third Generation SSTCs (full-bridge topologies)
 > >*************************************
 > >Mark Barton first to use full-bridge topology and primary driven SSTC
(early
 > >1990's?)
 > >Rob Lytle first to pulse SSTC using half-bridge topology claiming to get
 > >spark gap coil like arcs (early 1990's?)
 > >Richie Burnett - contributions in how full-bridge inverter actually works
 > >when driving resonant loads (dates?)
 > >Richie Burnett - first to audio modulate solid state tesla coil (2001)
 > >Daniel McCauley - first 3MHz SSTC tesla coil - full bridge topology
(2003)
 > >Richie Burnett - 4MHz RF Class-E? tesla coil (2004)
 >
 > Yep!!!
 >
 >
 > >Fourth Generation SSTCs (self-resonant topologies)
 > >****************************************
 > >Jan Wagner (first self resonant design???)
 > >Justin Hayes (first self-resonant antenna design) (2002?)
 > >Steve Ward - first Marx-type inverter based SSTC
 > >Jimmy Hynes - first DRSSTC
 > >Steve Ward - first ISSTC
 >
 > Yep!!
 >
 >
 > >OLTC work ? ? ? (i have no clue about names in this category - please
fill
 > >in with appropriate dates) and what category it should go in.
 >
 >
 > I guess "me" :o))  I think this is the first public mention of it.  The
 > exact links are probably broken, but I still have the files...
 >
 > http://www.pupman-dot-com/listarchives/2002/July/msg01008.html
 >
 > A BIG history text file I made to "remember" it all is at:
 >
 > http://hot-streamer-dot-com/temp/Off-LineTeslaCoils(OLTC).txt
 >
 > This should be very helpful to you!!!
 >
 > MANY others helped me a lot!!  So I can't claim that much of the final
 > thing was "my" idea...  Steve has taken it far further than I...
 >
 > But in my case...  I was sitting at work, bored out of my mind, and
started
 > to play with the idea using big IGBTs at low voltage with low inductance
to
 > get high primary currents...  I think that was ~Friday July 19th,
 > 2002...  I got excited that it seemed doable inspired by primary to
 > secondary coupling coefficient modeling with Mark R's program suggesting
 > that the coupling to a single turn very low inductance primary would be
 > high enough to make it all work...  That was the real stunning "key" that
 > unlocked it all...  I realize I have never properly written it all up
 > despite the fact I started an on-line journal sort of for this very
purpose...
 >
 > www.jamsci-dot-org
 >
 > I think I had maybe the first idea in a possibly "practical" design.  Many
 > others contributed to make it actually work.  Steve and others have
 > extended the art far beyond me...  I sort of feel like an old time
"fossil"
 > in the art now ;-))  Like the first appearance of a mud puppy with feet or
 > something :o)))  Nice to know they learned to walk and now FLY with the
OLTC!!!
 >
 > Cheers,
 >
 >          Terry
 >
 >
 >
 > >Please comment on anything thats incorrect, missing, or whatever.
 > >
 > >Thanks much!
 > >
 > >Dan
 >
 >
 >
 >
 >