Re: 3 Coil System Was: A photographic tutorial of Pancake Coil winding...with movies...(fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sat, 23 Jun 2007 20:30:57 -0700
From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: 3 Coil System      Was: A photographic tutorial of Pancake Coil
    winding...with movies...(fwd)

Hi Dave,

I said:

>What would be really interesting is a high coupling 3 coil maggy in 
>close proximity all using flat coils! Now that, we can model (unlike 
>that cone topload object which is a real pain in the butt).
>  
>
I was thinking about maybe running a model of that, but realized before 
I started that a flat L3 would be problematic. The outer diameter would 
be the hot end and that just becomes mechanically and electrically 
frustrating.

I then played with those cone shapes again. Internet Explorer had 
problems inserting over 20 rings (an argument passing problem to the 
drawing applets). I installed the latest Mozilla Firefox and it did fine 
installing the components into geotc, however, the drawing applet just 
would not update after the 20 objects. I also altered the max script 
value within the all.js file within the Mozilla program directory (to 
stop that annoying script message).

It is possible to model a cone (roughly). But the shape would be 
difficult to wind. However, an inverted cone allows the hot end of the 
cone to be topped off with a toroid or similar shape and rises the 
topload above the other two coils. Basically, once the capacitive 
loading of L1 and L2 are known for the shape of the cone, then it's just 
a matter of turns and wire size to produce L3 at the same resonance (as 
long as it is the same shape and size as was modeled capacitively). It 
is a long process. My fastest computer takes about 4 minutes to do a 
single run (which is a lot better than the previous 30 minutes on this 
computer).

Just musing.

Take care,
Bart