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Re: MMC take2

>From: Tesla List <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: MMC take2
>Date: Thu, 22 Apr 1999 22:14:50 -0600
>
>Original Poster: Adam <psycho-at-tradewind-dot-net> 
>
>
>
>Tesla List wrote:
>
>> Original Poster: "christopher boden" <chrisboden-at-hotmail-dot-com>
>>
>> Alright as I understand it someone recently took a whole bunch of
>> little caps and hooked them together for TC duty. They called it 
the
>> MMC (Another obscure acronym?) i think.
>>  I have a resource for a whole herd of brand new computer grade 
caps.
>> The values are 1399mFd -at- 450 VDC, how many do I need? I can 
probably
>> get a couple hundred. Any ideas?
>>
>
>MMC is Multi-Mini Cap, as in a capacitor made from many smaller
>(commercial) capacitors.  The safest procedure for finding the 
number of
>capacitors is to check out the manufacturer's data sheets, and 
derate the
>caps for the frequency of AC your tank circuit will resonate at.  
Then
>see how many caps in series you'll need for that, find the 
equivalence of
>that string of caps using the standard formulas, and then calculate 
how
>many strings you'll need to achieve the required capacitance, using 
the
>standard formulas (math.txt).  Play with the numbers a little to get
>everything right.
>
>Those caps have a pretty hefty capacitance for this kind of work, 
though,
>and I don't think they'll be able to handle the intense labor 
involved in
>the capacitor sweatshop that is the Tesla Coil.  Be sure to check out
>what kinds of AC frequencies these things are meant to handle, as 
well as
>the magnitude of the current that they're built to deal with.  Taking
>chances with this stuff caan be frustrating,dangerous, and even 
(gasp)
>costly, especially in such a new area.
>
>Playing the conservative yet again, I'd suggest that you use a cap
>designed for "pulse applications," but hey, who knows what you might
>discover.
>
>Good luck,
>Adam
>

The only pulse cap I can get Cheaply (and that is a reletive term) is 
a 300 pound monolith with 3.3KJoules at 60KV...will that work? Or 
should I go with the MMC.
I've heard good things about the whole MMC project. Is it still 
funtional? What's the latest?

The Coronaphile
Christopher A. Boden 
The Geek Group 
344 Ionia SW 
Grand Rapids MI 
49503 
(616)-574-4065 
 
The Geek Shall Inherit the Earth! 


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