Re: Ballast bulk buy trial ballooon

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

Original poster: "Steve White by way of Terry Fritz <twftesla-at-qwest-dot-net>" <slwhite-at-zeus.ia-dot-net>

I saw an auction a while back on E-Bay for what I recall was a neon sign
bombarder. One of the components in the picture appeared just as you
describe. A coil wound on a large bobbin with a huge iron slider running
through the middle. The slider could somehow be adjusted. So it appears that
what you propose is indeed viable and is in fact being used.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, August 09, 2001 9:23 AM
Subject: Re: Ballast bulk buy trial ballooon


> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<FutureT-at-aol-dot-com>
>
> >  Hi All
> >
> >  I have a lot of x-ray transformer laminations of various sizes. In
> >  particular I have enough laminations of size 22.75"L x 4"W to a form a
bar
> >  core of size 22.75"L x 4"W x 4"H. I am thinking about making a bobbin
that
> >  the core could slide through, and then wind the bobbin with very heavy
> wire.
> >  Does anyone think that this is a worthwhile approach to build a
variable
> >  ballast? The big problems for me would be pulling heavy copper wire
tightly
> >  around the bobbin, and constructing a mechanism for sliding the core.
> >
> >  Godfrey Loudner
>
> Godfrey,
>
> I think it's an excellent idea.  I've always wanted to modify my
> homemade ballast to make a core-slider mechanism, but I
> never got around to it.  I don't think it will be too difficult to pull
> the heavy wire around the bobbin because copper is rather
> soft and flexible.
>
> John Freau
>
>
>
>