Re: Slide-choke construction

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

Original poster: Jim Lux <jimlux-at-earthlink-dot-net> 

At 04:06 PM 5/12/2004 -0600, you wrote:
>Original poster: "Patrick Herd" <zl2uph-at-hotmail-dot-com>
>this has nothing to do with the steel rod idea but it may help by giving you
>a ballpark figure to work with. My current limiter was made by winding about
>50-60 turns of 2.5 square millimeter house wire (rated at 25amps continous)

2.5 square mm is 1.8 mm in diameter? = 0.0702 inches -> AWG 13

So, AWG 10, which is twice the area (5 sq mm), should be just fine.


>onto an old MOT core this limits to current in my MOT bank to about 35amps.
>In terms of linkage http://tesla.reidconsulting-dot-com.au/tesla.html details
>exactly what you're building
>and http://www.richieburnett.co.uk/ballast.html has a lot of info on
>ballasting.
>Hope this is of some help
>Pat
>----- Original Message -----
>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: <tesla-at-pupman-dot-com>
>Sent: Thursday, May 13, 2004 2:10 AM
>Subject: Slide-choke construction
>
>
> > Original poster: "Erik Byng" <ebyng-at-knox.edu>
> >
> > Hey list:
> > A while back, in a post titled "the amazing variable choke," someone
> > mentioned that they'd build themselves a slide choke, running a bundle of
> > epoxied steel rods through a pvc form with the coil wound on it.  I'm now
> > thinking of building one myself, but the dimensions I'm a little shakey
>on.
> > I have a +/-300ft roll of 10ga thhn which seems up to the challange, but
> > should it be wound with very few layers on a long form, or many layers on
>a
> > short form?  I would think that to get the most out of the rod's travel,
>it
> > would have to be wound long..  5 or so coil layers over ten inches of
>travel
> > sound decent?
> >
> > Erik
> >
> >
> > --
> >
> >
> >