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Re: MOTs...exploring the low end of TC voltage
Hi Mike,
why should there be saturation problems in the second stage,
am I missing something blindingly obvious? (well, probably) I've run a 4 MOT
back to back supply no problem.
Regards
Nick Field
> Original Poster: "Mike Nolley" <mnolley-at-mail.slc.edu>
>
>
>
> Tesla List wrote:
>
> > Original Poster: "Gregory R. Hunter" <ghunter-at-accucomm-dot-net>
> >
> > In the next few weeks I will wire up the twin MOTs with two
> > half-wave voltage doublers, proper protective filtering, safety gaps,
etc.,
> > and have a nice 1800 Watt, 12kvdc MOT supply. But now I know the
doublers
> > aren't strictly neccessary. Starving students and other low budget
coilers
> > take heart. Your Tesla coil power supply is only as far away as the
> > nearest junk yard!
>
> Greg--good to know someone else is going in this direction. I'm
building a
> power supply right now which utilizes Mots, and I fired it up last night.
I
> used 6 Mots in a center-tapped configuration, with two Mots back to back
in the
> first stage, and four Mots, two sets with primaries and secondaries in
series,
> for the second. This yields 8kv across the array, without saturation
problems
> in the second stage. Both outputs were half-wave doubled using 2 sets of
10
> oven capacitors in series-parallel--this produces 16kvdc at ~300 ma. (I
don't
> have a meter, so I can't say for sure). This summer I'm going to soup it
up
> even more by adding another set of 6 transformers and 20 capacitors to
give
> 600ma, or even more if I knock out the shunts, sink the whole mass in
parrafin,
> and add current limiting.
> Obviously it's completely over the top, but I decided to milk the idea
for
> all it was worth. So far it has cost me virtually $0, and far, far, far
too
> much time. : )
> I'll keep you updated offlist, if you're interested.
> --Mike
>
>
>