Re: MMC caps?

• To: tesla-at-pupman-dot-com
• Subject: Re: MMC caps?
• From: "Aron" <kc5uto-at-wt-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Sat, 05 Jun 1999 12:26:50 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

> Before commenting on these, could you give us further info, please:
> 
> 1.) What is the dielectric used in these caps.
> 2.) Physical size
> 3.) Manufacturer
> 4.) What would they cost (just out of interest).
> 5.) Maximum dv/dt (rise time in V/µsec)
> 6.) Internal construction (i.e: do they use metal FOIL endplates


1. don't know.
2. about 1" long 3/4" tall
3. Philips
4. I would sell them for $.25 each
5. don't know.
6. don't know.



Aron











> 
> Here are a few general comments (from my past experience with MMC´s):
> 
> I run my MMC at peak AC = DC rated voltage. Up to now (total around
> 3hrs run time), I have seen no ill effects. Mine don´t get warm either,
> (I´m running around 600A peak current at the moment). Terry has
> been playing around with the EMMC (copyright T.F.). He runs his at >>>
> voltage (per cap), than any manufacturer´s specs would let you believe.
> See the archives for more info. 6.2nF per cap is rather small. This
> means you will be limited to rather small amperage per cap (and per
> cap string). However, don´t despair. As the capacitance per cap (and
> per string) is low, you will need many strings in parallel. As all caps
> (and strings) are equal, at least to manufacturer´s specs, the current
> will be divided up equally. So you can indeed use these caps. You will
> just need a large amount for a big coil. Please see my other post to
> Alan Sharp on MMC´s for more info.
> 
> 
> Coiler greets from germany,
> Reinhard
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 

• Prev: Re: Starting a Teletype sync motor question
• Next: Re: Improving spark gaps
• Index(es):
  • Main
  • Thread