Re: MOT Powered Coil

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

Original poster: "Finn Hammer by way of Terry Fritz <twftesla-at-qwest-dot-net>" <f-hammer-at-post5.tele.dk>

Mark!

This depends how you arrive at your 12kV rating.....

I have done destructive tests with 2 MOT`s in series, so for a rough
estimate, double the values.
The coil was a small lashup, running at 350kHz.
The first capacitor consisted of only 2 parallel Phillips mmkp 376 1600
VDC pulsecaps in parallel.
They lasted around 1/2 minute.
Next cap was 8 caps, 4 strings with 2 in series. This cap lasted for
about 15 minutes. I burned up 2 sets of these.
I now run the coil with 3 caps in series, 9 strings and they still work
fine.
For a similar coil that delivers a short connecting arc in the local
electricity museums Frankenstein exibition, 4 caps in series and 16
strings has endured 2 years of service.

My present darling, the Ambassador coil uses 10 caps in series, and 20
strings. With 4 mot`s in series I estimate it will outlast myself.

In my opinion, it is a good thing to burn up some stuff, it gives a very
satisfying feeling of _knowing_ something.

Cheers, Finn Hammer
Tesla list wrote:
> 
> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <A123X-at-aol-dot-com>
> 
> Will an MMC rated for 12Kvdc be enough for the twin MOT supply with an output
> of 8Kvac or technically a round 11KVDC? Also, if I used 4 MOT's in series how
> much will it matter if some are kinda a bit smaller and the voltage output of
> them varies? It would seem to me that the large MOT's would put out more
of the
> power and even if this isn't the case wouldn't an 1800v MOT put out more
> current than the 2000v or 2100v ones causing things to get messed up? or do
> things just even out?
> 
> Mark