[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Two layer primary
I've given some thought to how one would wind such a coil... Spacers would
be the only way. You could probably use something like 1/4" polyethylene
tubing (between the windings in a layer) and 1/4" polyethylene strips
(between the layers). You would DEFINITELY need some flanges to wind
between. You might be able to come up with a way to use 1/4" poly tubing
for all the spacing. Since you're doing the tuning off axis, you don't need
access to the turns of the coil, except perhaps as taps every 3-4 turns.
From: Tesla list <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Thursday, September 14, 2000 11:27 AM
Subject: RE: Two layer primary
>Original poster: "Lau, Gary" <Gary.Lau-at-compaq-dot-com>
>That's a fine idea on paper, but making a neat flat spiral out of 1/4"
>tubing is enough of a challenge. Winding two turns per layer sounds like
>invitation for frustration!! I think I'm leaning towards gluing lexan
>spacer blocks to both sides of the insulating sheet of lexan. I agree with
>the tuning inductor.
>Regards, Gary Lau
>Waltham, MA USA
>>Original poster: "Jim Lux" <jimlux-at-jpl.nasa.gov>
>>why not wind it as a multi layer coil with 2 turns on each layer.. Here
>>a sideways view of the primary with turn numbers.
>>I'd seriously consider using an "off axis" inductor for fine tuning too.
>>since the scheme below is going to make tapping a bit of a challenge
>>center of coil