Re: doubled up toroids

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Esondrmn@xxxxxxx 

Kevin,

I use two stacked toroids on my 6" coil.  The larger on top.  It 
definitely helps to get the sparks up and away from the primary.  I 
originally "calculated" the total capacitance by knowing where I 
started with all the parameters of the system and then recalculating 
the toroid capacitance based on the new tuning point on the 
primary.  Bart and I discussed this a couple of years ago.  If one 
toroid calculates to say 30 pf and the other 40 pf, the total will 
not be 70 pf but something more like 60 to 65% of that - in the range 
of 45 pf total.

Ed Sonderman

In a message dated 3/30/2006 6:16:40 AM Pacific Standard Time, 
tesla@xxxxxxxxxx writes:
Original poster: "MakingLightning" <MakingLightning@xxxxxxxxxxx>


I see a lot of people using a toroid on top of a toroid to help prevent
spark jumps to the secondary.

I have 2 questions about this.

1). Does this really work?

2). If let's say you have calculated out that you need a 8x24 toroid, what
size toroid would you use if you were to use the 2 torrid setup and how
would you determine or calculate that?

Kevin M. Conkey