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Re: MOT powered Magnifier???
Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>
In a message dated 3/8/02 10:56:50 PM Eastern Standard Time, tesla-at-pupman-dot-com
The main thing to know about a magnifier is that it works almost
exactly like a normal TC. The theory too is essentially the same.
Since MOT's work fine for a normal TC, they'll work fine for a
magnifier also. Magnifiers as they are normally built do not
give any efficiency or spark length advantage over a normal TC.
I've done a number of comparisons, and seen no benefit to the
magnifier arrangement. Some folks prefer the magnifier for
space reasons. There's an arrangement requiring certain tuning
and quenching capabilities suggested by Antonio which may
give a very slight theoretical spark length advantage to a magnifier, but
this has never been demonstrated.
To set up a magnifier, you can use a normal secondary, and use
it as the resonator (extra coil). If this coil has 35mH, then you may
want to use about 7mH (ballpark), in the new driver secondary. In
other words you want to have about 5 times more inductance in the
resonator than in the secondary. It can be 3X, to 7X perhaps. It's
not too critical. A wire or pipe connects the top of the secondary
to the bottom of the resonator. Place the resonator somewhere off
to the side of the driver, far enough away so the sparks won't hit the
driver. If you use a larger inductance ratio,
it will keep the voltage on the wire or pipe lower, and corona will be
less of a problem. But if you use too high an inductance ratio, then
the coupling of the driver (pri to sec), will need to be too high. This
can cause corona and flashover, and racing sparks. In general,
magnifiers need a tight coupling between the primary and secondary.
However the overall system coupling will be about the same as a
> Anybody here had luck with a MOT powered Magnifier System??? Would it
> work??? .....My coil will be using 6 seriesed MOT's with middle two
> transformers center tapped and rest kept floating. Whole setup will be under
> Mineral Oil!!!
> I don't know alot about these Magnifier systems!!! How do you set them
> up----> and whats the theory behind them?? I have some guesses as to why
> they might work...but I'm not totally sure.