Re: MOT current

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Just Justin <rocketfuel@xxxxxxxxxxxxx>


Hi Langer,

How much current can be drawn from a MOT will depend on the size
of the microwave that the MOT comes from...a 1000 watt microwave
will have a a larger transformer than a 600 watt one.  The other
thing to consider is that MOTs are not current-limited like NSTs
and OBITs.  Usually some sort of ballast is used to limit the
current which prevents things like power arcing in the spark gap and
is generally safer if something goes wrong.

You can read about ballasting here:

http://richieburnett.co.uk/ballast.html#ballasting


Good Luck,

Justin



> Original poster: "Langer Giv'r" <transworldsnowboarding19@xxxxxxxxxxx>
>
> Hello, I scrapped the OBIT on my tesla coil becuase it just wasnt
> working, so im going to use 4 microwave oven transformers connected
> in series with another transformer with a shorted secondary as
> ballast.  I dont know the exact voltage rating of each MOT but the
> caps were rated 2.1-2.3KV.  I need to know the amperage of these
> transformers in series so i can figure out my Capacitor size.  I am
> going to use saltwater capacitors because i am out of money to buy an
> MMC. (I also gotta buy a variac).  So if anyone has any idea of what
> kind of current this thing might draw, please let me know, help is
> greatly appreciated.  Thanks everybody
>