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Re: Coil Trouble

Original poster: "Gerry Reynolds" <gerryreynolds@xxxxxxxxxxxxx>

Sounds like the gap is too far apart.  Try closing the gap some.  Dont let
the transformers hum for very long.  Wood is probably OK unless it is very
humid or green.

Gerry R.

> >From: Bob81818@xxxxxxx
> >Date: Sat, 18 Dec 2004 14:21:03 EST
> >Subject: Coil Trouble
> >To: tesla@xxxxxxxxxx
> >X-Mailer: 8.0 for Windows sub 6033
> >
> >Hello everyone,
> >        I'm kinda stuck on why my coil wont work, obviously. First off,
> > the problem more specifically is when I power it up, the gap fires once
> > or twice and then all I hear is the hum of the transformers. When its
> > dark I can see a 1 inch arc from the toroid to a grounded wire, but
> > that's only once or twice (along with the gap). I believe it might be
due
> > to mounting almost everything on wood. I always had that thought in the
> > back of my mind but never really wanted to listen. I'll list my specs
> > down below.
> >
> >Secondary:
> >        4.5" by 25" with 26awg
> >        TeslaMap says 1,403 turns
> >        6" by 22" aluminum duct toroid
> >        first sec winding is 2.5" above first primary winding
> >
> >Primary:
> >        .25" copper tubing spaced .25" apart
> >        about 9 turns tapped between 8-9
> >        20 degree inverse cone
> >        inside hole is about 5" raised about 1.5" off the mount board
> >
> >Power supply/etc.
> >        4 stack MOT (ballast is sec. shorted MOT) run at 120v unknown
amps
> >        50nf cap (5 bucket caps)
> >        now using single static gap (used to use multi gap mounted on
wood
> > which performed less results)
> >
> >If inductance calculations are needed or anything teslamap would have
just
> >ask. Same with other information. If remounting is the problem, I may
have
> >a cheep source of acrylic. Any suggestions or comments will be greatly
> >appreciated. This is my second coil, my first was a 3.5"inch (but it
> >actually worked). Thanks for your time, I look forward to any responses.
> >        Dan E.
>
>