RE: [TCML] Interesting Coil Wrap

[<toxandale@xxxxxxxxxxxxx>]

I believe they are electrically wired to be opposite polarity. The examples
I've seen have the inside turns of both primaries connected so that the
current flows from outside to inside of one primary, then over to the other
primary, where it flows inside to outside of that primary before completing
its path thru the primary tank circuit. Even though everything is wound
identically, the connections are different.

(un)Terry

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Lau, Gary
Sent: Saturday, August 02, 2008 8:23 PM
To: Tesla Coil Mailing List
Subject: RE: [TCML] Interesting Coil Wrap

I'm not sure if I'm exposing my ignorance or what, but I didn't think that
bipolar secondaries were wound any differently than conventional ones, as
far as each half being wound in a different direction.  Did I miss that?

Thanks, Gary Lau
MA, USA

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of David Rieben
> Sent: Saturday, August 02, 2008 9:16 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] Interesting Coil Wrap
>
> Hi Ryan,
>
> Sounds an awful lot like a bi-polar coil ;^) Both ends of the
> secondary coil are "hot" and neither end is grounded. They are
> wound in opposite directions so that the two hot ends of the
> secondary are 180 degrees out of phase and will spark towards
> each other. This requires twice as much secondary wire as a
> standard single-ended secondary coil but does have the ad-
> vantage of not needing a dedicated RF ground.
>
> David
>
>
>
> ----- Original Message -----
> From: "Ryan Carr" <goleafsgo_12@xxxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Sent: Saturday, August 02, 2008 10:47 AM
> Subject: [TCML] Interesting Coil Wrap
>
>
>
> Hey Everybody, I recently saw a diagram on the internet of a person using
a
> different coil wrapping style for his secondary.  It went something like
> this.  Imagine a secondary coil winding that starts in the middle, instead
> of one end to the other.  THis person took their wire, folded the length
> they wanted to use in half.  From the middle of the secondary, they
wrapped
> half of the wire length in one direction and towards the bottom.  Then,
they
> took the other half of the wire (the un-used portion as of yet) and
wrapped
> it in the opposite direction, and towards the top of the coil.  My
question
> is:  What would this be used for, and, would it actually work as a
> secondary?Ryan
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