Re: Slide-choke construction

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

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


Wind it over a length of 28 inches.  Use small 1/4 x 1/4 phenolic spacers to
keep each layer with a generous air pocket and then use a 100 CFM muffin fan
to blast air through it.  Ours is wound with #8 AWG and works great up to 16
kVA.

The core we used is 2.5 x 2.5 in. square and moves approx 20 inches.

Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, May 12, 2004 9:10 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
 >
 >
 > --
 >
 >
 >