Re: An Oudin Resonator with a peculiar style of winding the secondary
Subject: Re: An Oudin Resonator with a peculiar style of winding the secondary
From: Terry Fritz <twftesla-at-uswest-dot-net>
Date: Sat, 24 Jul 1999 18:02:59 -0600
That coil looks familiar :-)) I wound one very similar too it. I have a
web page that tells about such things at:
See the Non-Linear coils and Dr. R's comments...
I was trying to even out the voltage distribution on the primary at the
time but never went very far with it. I used a computer controlled winder
to space the turns so that the voltage would rise linearly across the
I will be very interested in hearing how this works for you. I got all
wrapped up in other things and never got back to this area of study...
At 10:17 AM 7/24/99 -0700, you wrote:
>I have just done some experiments in winding space-wound secondary coils
>where the spacing inbetween turns increases as you near the top of the coil.
>is a link with actual size pictures.
>The idea came about in a strange fashion, and there is not a whole lot of
>scientific logic behind it. I needed a compact coil that produced an 8-12
>shower of powerful sparks, yet also needed to fit within a rectangular box
>7" wide 7" deep x 16" long. That didn't leave much room for a primary coil
>of the usual fashion, and I simply could not fill the box with oil as it
>needed to be lightweight. So both coils would need to be wound on the same
>diameter coil, like an Oudin Resonator. Close winding the coil with the
>higher currents I am using short-circuited within the secondary. Space
>winding worked alright, but the coil length needed to be a few inches longer
>to get the desired output.
>I can't explain why, but this coil appears to work okay. Any ideas?
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