Re: Solid state gaps - what happened? (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sun, 10 Jun 2007 14:59:03 -0700 (PDT)
From: Brett Miller <brmtesla2@xxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Solid state gaps - what happened? (fwd)

Nick,


--- Tesla list <tesla@xxxxxxxxxx> wrote:

> 
> ---------- Forwarded message ----------
> Date: Sun, 10 Jun 2007 14:19:17 -0700
> From: seanick <edgarsbat@xxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: Solid state gaps - what happened? (fwd)
> 
> I must concur with John on that. I was seriously
> considering a SISG, but 
> then when I didn't see much more about them on the
> list I assumed they were 
> not effective and resigned myself to consider the
> next improvement for my 
> SRSG I would work on.

Well, SISG or not there is no reason not to still
persue design improvements on your SRSG.

It seems as though you have not read the original
SISG.pdf document (in it's current revision..."1.9" I
believe).  I would have to recommend reading that and
thinking about it until you understand 90% of the
material, at least conceptually.  Once you have done
this, you are ready to start thinking seriously about
SISG experiments.  Coilers with years of experience go
right ahead.

I've been working with HV for over 20 years and I
still like to take things in baby steps.  Not only
just for safety, but I end up seeing the big picture
without as many "holes" in my knowledge.  It helps one
be in a better position to eventually contribute as
well.

> It would be great to see some examples of SISG coils
> in use, 

Terry and Mark have pics and video...as does Finn.  I
have my little two section SISG sparking also, but I
am waiting for more caps right now, plus parts for
more SISG segments.  Once I finish my coil, I plan on
doing a complete writeup on the TCML and 4hv, plus I
might even redo my web site and bring it up to date at
some point this year, since I've done about 10 or more
tesla coils since the page went up.

> as well as the 
> schematics for any changes that need to be made from
> a SRSG coil (for 
> instance, what does a DC coil circuit look like?
> I've seen them mentioned 
> many times, but never the schematics...) another
> thing is cost, but not of 
> the SISG.. rather, the caps needed.

That depends on what you are after.  You could use
your same NST, cap, and primary/secondary, but then
you would have to spend more on the SISG electronics
themselves since it would need many 900v segments to
build up to 15kv or whatever the case is.  Or you
could use the usual MOT and spend more money on a nice
MMC with an adequate RMS current rating.  My advice is
to fully understand the SISG gap tech before worrying
about this, since by that time you can answer your own
questions.

> Since they are DC are there any other types of caps
> that could be used other 
> than polyprops? or are poly caps the only effective
> cap in any coil, dc or 
> otherwise?

It is highly recommended to use good quality MMC caps 
for this higher current application.

Cheers,
-Brett
 
> Thanks
> NICK



       
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