RE: Sources for MOTs

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Philip Chalk" <phil-at-apsecurity-dot-com.au> 

Hi Arpit, (Bet I can guess one of your nicknames :-)

I'm at Balgowlah, so I tend to scrounge around there - Manly, Seaforth,
etc.  But I also drive all over the place for work, so I just got 'em
wherever I saw them.

Where are you ?  I'm sure I could spare you a couple, if you like.  Yes,
you really want two in series, at least - 4 or 6 is better, but you need
to consider insulation issues - the archives should be full of info on
this.  Also at least a few coiler's websites, but I don't recall
specifically which ones.  Google will find them.

(Hmmm, curious, MS Word sees 'Google' as a typo ?!)

It's certainly not mandatory to have identical pairs, but I feel it's
'nicer' & makes me happier (I like symmetry)  It would be useful, when
you have several, to match as closely as possible secondary voltages &
core sizes, but it doesn't seem to matter much in practice.

(P.S.  I figure, at approx 1 primary turn per volt, it would be
reasonably easy to adjust the secondary voltage a bit by winding a few
more primary turns on the MOT with the higher voltage to match one with
a lower voltage - if you get what I mean - but I haven't tried this.)

Btw, I'm now curious to know where you found your 'empty' microwave -
maybe it was 'one of mine'  :-)

Cheers,

Phil Chalk.


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Subject: RE: Sources for MOTs

Original poster: "Arpit Thomas" <neko4-at-dodo-dot-com.au>

you dump the empty cases on someone elses pile? YOU! ;) Ive only ever
found
one microwacve oven to scavenge parts form, when i got it hope and
opened
it up, it didnt have a transformer or capacitor :( But wow, 30, I guess
i'll have to expand my search to catch up ;) AH well, im waiting till
the
next council pickup, and I WILL get a MOT then >:) So, How vital is it
to
have identical transformers if you want to hook them in series? I've
found
neon sign transformers very hard to come by in sydney, so microwave oven

transformers will probably be the best bet for my first coil. I suppose
just one transformer would be too low voltage to use by itself? Also
since
you are in sydney as well, would you mind telling me which places you
have
found to be good for copper enameled wire on a spool? I know I can get
heaps from a microwave oven fan, but that isn't ona  spool, so I can't
use
a winding machine :/