Re: Litz Wire

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Malcolm Watts" <m.j.watts@xxxxxxxxxxxx>

Hi Mike,

On 7 Mar 2005, at 18:59, Tesla list wrote:

> Original poster: "Mike Knowlton" <amdx@xxxxxxxxxxxxxxxx>
>
>
> Subject: Re: Litz Wire
>  > Mike: Is this cirrect you want to wind the SECONDARY with litz wire
>  ??? >     Just how large is your coil ?? >     I have used fairly
>  large wire on secondaries but never 12/36 litz
> wire.But then I did not build the coil in Wendover Utah or Col.
> Springs .
>  >       Robert    H
> Hi Robert,
>   I think you may misunderstand the Litz specification.
>   The label 12/36 means 12 strands of # 36 wire.
>    Yes, I am thinking about using the litz for the secondary,
> however, I want find out if the litz is any better than a #22 wire
> regarding the A.C. resistance at about 300Khz.
>
> Clarifying note;
>          A #22 wire is the same diameter as my 12/36 litz.
> I want to use the litz to raise the Q of my secondary.
>                                    Mike

I built a secondary using Litz wire once (in my early coil building
days). No significant difference in performance or Q was noted over
using a suitable gauge of solid Cu. Litz is usually specified as
being most useful in the MW broadcast band where the higher frequency
(smaller) coils operate but by the time you approach 500kHz to 1MHz
you find that more inductance is better than more Q, at least for
disruptive discharge coils.

Malcolm


>  >
>  >  > From: "Tesla list" <tesla@xxxxxxxxxx>
>  >  > Date: Sat, 05 Mar 2005 23:25:34 -0700
>  >  > To: tesla@xxxxxxxxxx
>  >  > Subject: Litz Wire
>  >  > Resent-From: tesla@xxxxxxxxxx
>  >  > Resent-Date: Sat,  5 Mar 2005 23:27:12 -0700 (MST)
>  >  >
>  >  > Original poster: "Mike Knowlton" <amdx@xxxxxxxxxxxxxxxx>
>  >  >
>  >  > I have about 1100ft of 12/36 litz wire, my understanding is this
>  wire
> is
>  >  > good to about 50 khz. If I wind a secondary with
>  >  > this and it rings at say 200khz, is this litz any better than a
>  #30 or
> #28.
>  >  > Mike
>  >  >
>  >  >
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