Re: [TCML] Secondary Coil: Wire Gauge and Number of Turns

[David Thomson <tcbuilder@xxxxxxxxxxxxxxxxxxxxxxxx>]

Not only is the larger current predicted, but it is also observed.  Create
a spark gap with an independent ground to the ground side of a secondary
and then apply it to the top load side of the secondary.  The spark will be
thick and white on the ground side and thin and purple on the top load
side, as would be expected when comparing high current to high potential.

This is why I think coils should be wound with a heavier gauge wire on the
ground side of the secondary and thinner gauge on the top load side.  It is
also why I think the ground side should have a greater diameter than the
top load side.



On Wed, Jul 3, 2013 at 8:18 AM, Jim Lux <jimlux@xxxxxxxxxxxxx> wrote:

> On 7/3/13 5:25 AM, Atomic wrote:
>
>> How can the current be larger on the bottom of the secondary if it's just
>> a
>> continuous wire? Shouldn't the amps flowing on the bottom be the the same
>> amps going to the topload?
>>
>
>
>
> the current would be uniform if there was no capacitance from the winding
> to ground.  In reality, though, there is essentially a tiny capacitor from
> each turn to ground (as well as to adjacent turns).  You see this in the
> models as "self C" of the secondary (often computed by Medhurst's formula)
>
>
>
>
>
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