HIGH VOLTAGE CHOKE .5 HENRIES---BIG--- ON E-BAY !!!!

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

Original poster: "BART" <BAPLATING-at-tds-dot-net> 

Hi all.
I have a choke on E-Bay that you have got to see. Item # 3832387830
Check out my other H.V. stuff also!!! More to come.

Cheers,
Bart Avery


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, August 06, 2004 6:41 PM
Subject: SSTC Progress I think:^)


 > Original poster: Robynsaddiction-at-aol-dot-com
 >
 > Well, let me start by saying that I am not sure that you (the list) will
be
 > able to contact me through the list, because I have AOL and it is giving
me
 > a hard time with the list. My email is Robynsaddiction-at-aol-dot-com (pleas
 > contact me through my email). Anyhow, I decided to build my own board
 > rather than use Jim Mitchell's board, and while I was at it I built a new
 > half bridge. I get nice square waves from the TC4420's and 29's. I have
 > appropriate GDT material, and get a differential voltage of 26 volts p-p
on
 > the MOSFET's. However, when I look at the output of the gate drive chips
 > when the 100k pot is turned anywhere other than 0 ohms the waveforms start
 > to distort. However, this may just be due to my crazy scope. Anyhow, I put
 > it all together, and am able to get about 2-3 inches worth of spark with a
 > half wave rectified DC of about 50 volts. Above that and something in the
 > bridge dies:^( I tried using full wave rectified DC with 10,000uF of
 > filtering, and it made the output much bushier. Though, when I went above
 > 50-60 volts DC in this configuration the MOSFET's blew like M-80's, caught
 > fire, and almost destroyed my board. Needless to say, the heat sink of the
 > FET's was steaming hot. So, what is my problem? Am I tuning incorrectly? I
 > kind of think that I may be tuning the thing incorrectly. I have the
 > MOSFETs on the same sink, but they are isolated by heat conducting pads.
By
 > the way, this is a coil is a design like Steve Ward's 1st feedback SSTC,
 > only his actually worked. Anyhow, yeah, what is going on here? I am so
 > excited to think that I might actually be just a few small mistakes from a
 > working SSTC of my own.Thanks List, Richard Harris
 >
 >
 >