Re: [TCML] New Coil

[Miles Mauldin <teslamiles@xxxxxxx>]

Hi Bart,
 
Am I using the tool incorrectly then?  You are right, it does not output any diameters, those are inputs.  I am questioning the values I had to input to arrive at a coupling of .14k.  I do not believe I have seen any photos of a coil design that had the bottom windings of the secondary below the plane of a flat primary.  Also every other tool I've used, and research I've done, suggests the inner diameter of the primary be at least 2" greater than the outer diameter of the secondary form.  I am just guessing I'm not using the tool correctly.  Any guidance would be appreciated.
 
Thanks,
Miles



________________________________
From: bartb <bartb@xxxxxxxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Wed, March 10, 2010 8:29:09 PM
Subject: Re: [TCML] New Coil

Miles,

The recommended minimum proximity in Javatc is calculating the distance 
as the "nearest points" as noted in the help file. If Javatc tells you 
1.5" as the minimum proximity, then it's looking for a primary diameter 
that meets this distance. Javatc does not suggest a primary diameter in 
any of it's outputs.

Take care,
Bart

Miles Mauldin wrote:
> Could that really be correct?  Using the javatc tool it suggests my primary inner diameter to be only 1.5" greater than the secondary form (a difference of .75" radius), and to obtain .14k coupling the lower end of the secondary is .5" below the primary.  I worry when the primary and secondary is that close; should I?
>
>
>
>
> ________________________________
> From: John Forcina <forcijo10@xxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Sent: Mon, March 8, 2010 1:22:52 PM
> Subject: Re: [TCML] New Coil
>
> If i read correctly in this photo,
> http://www.cmnow.com/TeslaMan/Toroid/tn1.htm You plan to have your primary
> coil 4" That is going to be way too low and your coupling between your
> primary and secondary coils will be very small allowing very little energy
> transfer into the secondary coil.  I recommend you plug your coil specs into
> Javatc http://www.classictesla.com/java/javatc.html .  Adjust your primary
> height and diameter and adjust your primary coupling to about K=.14
>
> On Mon, Mar 8, 2010 at 12:58 PM, DC Cox <resonance@xxxxxxxxxxxx> wrote:
>  
>
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