Re: JAVATC Version 11 (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 20 Aug 2007 17:38:18 -0700
From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: JAVATC Version 11 (fwd)

Hi Dave,

Thanks for letting me know all is working. Regarding this bipolar cone 
configuration, no I can't. I'm limited to what Geotc can do and at this 
point, it is written for 2 coils only. However, there are always 
workarounds and Javatc can be made to model this coil. The unfortunate 
part is the crunching time will increase. Given the program today, this 
is how I would do it (and it's a lot of manual manipulation):

1) Enter cone 1 in the Secondary
2) Enter cone 2 in the Primary
3) Insert rings (topload with a ground connection) with the diameter 
equal to the primary.
   ** 1 ring for each primary turn at it's position.
4) Run Javatc
5) Note the resonant frequency of the coil that had dimensions inserted 
into the secondary inputs.
   ** This frequency is true for both cones if identical.
6) Clear Javatc.
7) Insert the primary and the cap size.
8) Tune the coil via cap or Lpri manually changing turns until the 
frequency in step 5 is achieved.

This will get you close. Keep your eye on the coupling while doing this.

This type of manipulation is possible with Javatc, but it requires a 
thought through algorithm before you start. The secondary coil inputs 
will run and show Fres from Les and Ces. The primary coil input will 
only perform a Ldc frequency (you should find they are slightly 
different), but by inserting the second cone in the primary, we get it's 
ext C effects for a true value for the first coil. The rings also 
represent the ext C portion of the primary for the same reason. Thus, 
once the first coils frequency is found, we know exactly what the second 
coils frequency is also if it's identical. That is simply steps 1 to 5. 
Step 7 and 8 simply finds the LC values required for that frequency.

When you start thinking of how Javatc can be used in this way, it does 
open up a door or two of modeling.

Sorry I can't do 3 coils, that would be cool. But, not at this time. I 
understand though, I can't count the number of times I wished it could.

Oh, crunching time will be increased due to step 3. Inserting a large 
number of objects has that affect.

Take care,
Bart

Tesla list wrote:

>---------- Forwarded message ----------
>Date: Sun, 19 Aug 2007 21:00:34 -0500
>From: David Thomson <dwt@xxxxxxxxxxxx>
>To: 'Tesla list' <tesla@xxxxxxxxxx>
>Subject: RE: JAVATC Version 11 (fwd)
>
>Hi Bart,
>
>Request:  Can you make JavaTC calculate for a double cone bipolar
>coil, such as the one at:
>http://www.tesla-coil-builder.com/double_cone_bipolar_tesla_coil.
>htm
>
>I would like to get this coil tuned to its maximum capability.
>
>Dave
>
>David W. Thomson 
>Quantum AetherDynamics Institute
> 
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