Re: MOT with chopped off primary -- Anyone tried this before?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Mercurus2000" <mercurus2000@xxxxxxx>

How much voltage were you getting out from using the 30 turns on the
primary?
Adam
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Monday, July 04, 2005 7:09 PM
Subject: MOT with chopped off primary -- Anyone tried this before?


> Original poster: "Wilson Ng" <metalstorm2002@xxxxxxxxxxx>
>
>
>
> Hello. I've read an old posting about connecting the filament winding of a
> MOT to  a light
> dimmer/capacitor combination. It worked for me. However I've found that
> increasing the
> capacitance dosen't increase the output power of the MOT that much. I
> suspect that the filament
> winding has too few turns to be effective.
>
>    Then I painstakingly removed the primary and rewound it with 30 turns
of
> #18 stranded wire.
> When used with the dimmer/capacitor setup, it worked much better. The
MOT's
> output power is
> now equivalent to that of my ignition coil when a 10 mf cap is used. With
> this output power,
> my very crude and tiny tesla coil was able to produce up to 3" sparks. The
> only problem is
> internal arcing, which I've encountered several times when I adjusted the
> spark gap too wide.
> One thing I don't understand is why is there no internal arcing when the
> MOT's output is
> shorted with a .25" spark, but when it is used to power my tesla coil, a
> gap of this width
> causes internal arcing? Is it possible to solve this problem by
> disconnecting the end of the
> MOT's secondary winding that connects to its core?
>
> _
>
>
>