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Re: First Light w/MMC :-))
Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
Hi Winston,
MMCs may heat a "little" under high current. Not a problem as long as they
don't get above about 10C.
Cheers,
Terry
At 09:56 PM 10/16/2002 -0700, you wrote:
>Hi All,
>
> After 3 months of silence, the neighborhood was once again "blessed" by
>the sound of my coil :-)). This time it was armed with a new Geek MMC.
>
> Prior to this, I was getting 3.5 feet from 2kVA. Now I'm getting 5
>feet, which would be longer if I had more running room. The coil was
>hitting everything, including the ground ;-)). It was also breaking out
>in multiple places at times, forming 2 or 3 separate three-footers.
>
> This was with the same cap value (0.075 uF) as before :-)). I can't
>wait to go 0.11 uF, and my new big secondary. For now, I'm stuck with
>my small 4" by 21" coil. I can't even adjust the coupling here, due to
>bad designing of the primary form. I'm getting at least 3x the
>resonator length worth of spark, and haven't seen any signs of secondary
>coil stress. This little guy is taking more than my old 6" by 28" one
>can, already ;-(.
>
>Question: After a nice 30 second run, the two middle strings of my MMC
>were slightly warmer than the others (maybe 1 or 2 degrees F), which
>remained stone cold. Is this a concern??? I'm hoping that this is due
>to their being 6" directly under the primary coil, rather than bad
>capacitor design.
>
>Comments are appreciated :-))
>
>Thanks,
>Winston K.
>