Re: Polycap - deal!

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

Original poster: "Terry Fritz" <twftesla-at-uswest-dot-net>

Hi Dennis,

I have a deal :-))  I sometimes have coiler's do little experiments for me
that I can't do myself or that need to be done by someone else just to "be
sure it works"...

I think you have a 15/30 NST which would like a static gap LTR value of
7nF.  That works out to about 3.5 amps RMS on the cap.  The Panasonics
caps, I bulk buy thousands of, could make an MMC (EMMC) cap that might work
cheap!  8 caps could handle 3.5 amps and give a value of 7nF.  The voltage
on each cap is 'high' but MMC caps seem to like that :-))

If you want to play around, here's my "deal" :-)  I'll whip up a simple
EMMC with eight caps (7nF, 3.5Arms, and I'll high voltage test it to say
24kV and send it to you if you will send me a check for $14.40.  I'll send
it to you to try out on your coil (I realize it is not built yet).  If the
EMMC works, I get to cash the check :-).  If it blows up, I tear your check
up :-(.  Sort of a fun little experiment with gambling involved! :-))  This
would be just at the voltage and current edge of the caps and it would be
cool to see what happens!!!

Tell your wife it may keep you from blowing flaming oil all over the garage
:-)) and the money part is guaranteed in this case.  Personally, I would
love to know how well it works!

If interested, write me at the e-mail below and we'll get it going.  I
added an old post below from Garry who is another Guinea pig...  Oops, I
mean "experimental assistant" :-)) whom I have been working with in MMC
testing.  Garry knows more about homemade caps type than anyone!  He has
also tried party cup caps but I forget the results.  The cap I originally
sent him finally did blow up, but I think he is a sold MMC "believer" now
:-))  He is presently "enjoying" NST depoting intricacies... :-)) but maybe
he can tear himself away from that "fun" to comment on MMCs and party cup
caps further.

Cheers,

	Terry
	terrellf-at-qwest-dot-net

---------------------------------------------
Date: Tue, 03 Oct 2000 20:11:53 -0700
Message-id: <000c01c02db0$d9582360$53c1e8d1-at-pacbell-dot-net>
From: "Garry F." <garryfre-at-pacbell-dot-net>
To: "Tesla list" <tesla-at-pupman-dot-com>
Subject: MMC Cap astonishing!! YAY!!

I just hooked up this single string MMC cap someone just sent me at the
lowest capacitance and I got big powerful streamers about 12-14" long off
the toroid and I've not even tuned it yet!!
 
I just sat there stunned with my JAW HANGING so low you could have driven a
DIESEL TRUCK through it without hitting a TOOTH. YOU COULD HAVE KNOCKED ME
OVER WITH A FEATHER!!
 
Yeesh, if this is how a single string performs, how would two, or three or
more strings do? Who needs anything else?
 
I guess there are NO words to describe it. No wonder MMC's have taken over
the tesla field!!
 
My strongest gratitude to the kind person here (You know who you are!) who
sent the CAP to me, You have taught me more about CAPS in about 3 seconds
of astonishment than I've learned in my entire life, and have turned
frustration over a missed delivery into JOY!! 
 
We don't need no Transmitting Doorknob anything! 
 
YAY!!
 
 
------------------------------------------ 
 


At 07:03 PM 1/23/2001 -0500, you wrote:
>OK Everyone,
>Here's the deal: Before I signed up on this mailing list, I did a lot of 
>research of the construction and a little of theory behind why it works and 
>all that good stuff. I decided to construct a rolled poly cap and that wasn't 
>very fun. I made one that measures a little under .004mF (I think) and it's 
>huge. Well, from everything I've heard on this list I'm about garunteed 
>failure of this cap, probably sooner than later, and possibly even prone to 
>explosion (something I'd like to avoid). I stumbled upon a page with the 
>"party cup" cap and I was wondering if anyone has tried it with their coil. 
>Would it stand up to the abuse or am I wasting my time with another bomb of a 
>cap. I know that the MMC is the best way to go, but I haven't quite talked my 
>wife into, "how it will benefit her" yet. 
>Thanks all,
>Dennis
>