Re: How much more(or less)

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

Why would there be any change in the primary tapping?  If you don't change
the capacitor in the primary, nor the secondary coil and topload, all the
resonant frequencies would remain the same.  You might see a slight
decrease in frequency just from the increase in capacitance from the more
and longer streamers.

Perhaps the model is assuming you are changing the primary capacitor to make
it larger to take advantage of the larger charging current available?  A
doubling in current would imply a doubling in capcitance, which in turn
would imply an decrease of 1.414 (=sqrt(2)) in frequency.  To keep the
frequency the same, the inductance would need to halve (so the LC product
remains the same.)  Changing the tap from 9-10 down to 6-7 would probably be
in this range.
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, April 27, 2002 11:45 AM
Subject: How much more(or less)


> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<jim-at-jlproduction-dot-com>
>
> Hi all,
> If one had a coil powered by a 9/30 NST and all things remaining the
> same, added another 9/30 NST how much of a jump inwards on the primary
> would they need to make?
> I ran this through TeslaCAD and it jumped in from turn 9-10 all the way
> in to turns 6-7. This seemed like a bit much to me and I was curious to
> see what you all thought. I will be doing just this tomorrow so any/all
> ideas or suggestions are welcome. BTW you can see specific coil details
> at the link below.
>
> Jim Layton
> http://www.jlproduction-dot-com/Tesla.html
>
>
>