Re: MOTs

• To: tesla-at-pupman-dot-com
• Subject: Re: MOTs
• From: Hollmike-at-aol-dot-com (by way of Terry Fritz <terryf-at-verinet-dot-com>)
• Date: Tue, 27 Oct 1998 08:05:21 -0700
• Approved: terryf-at-verinet-dot-com

In a message dated 10/27/98 12:36:47 AM Mountain Standard Time,
tesla-at-pupman-dot-com writes:

>  What do I do with the filament transformer windings
>  located between the primary and secondary?  Just cut the ends off and
forget
>  about it?  I don't see how I could get it apart to get them out, the core
is
>  welded together.
Ed,
   I was able to remove the center winding by cutting off the connecter lugs
and simply pulling the wire out with a pair of needle nose pliers.  It wasn't
easy with the first turn, but was easier after that.  The hardest part was
breaking the glue, but it is not that difficult.
>How do you find out if it is shunted - try the jacobs ladder test
>and see if the lights go out?
>From what I have heard, even if it is shunted(mine seems to be), it will draw
too much current when shorted.  Why not put a 100K or so, power resistor
across the secondary and let it have a load and reflected impedance and then
measure the current draw?   I was wondering why those trying to use MOT's for
inductive ballast  for a pig don't do this rather than shorting the secondary.
I could be missing something here.
Mike

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