Re: Dual top loads

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx>

At 05:48 PM 3/16/2007, you wrote:
> Original poster: "Todd Reeve" <todd.reeve@xxxxxxxxxxxx>
>
> While checking out pictures of coils different sites on the Tesla 
> Coil Ring, I noticed that some of the coils that use flexible 
> aluminum ducting for a toroid sometimes have 2 stacked toroids while 
> the coils that have a spun aluminum toroid have only one.  I surmise 
> that this is to increase the capacitance of the top load.  Is this 
> needed when using ducting since the wall thickness of ducting is 
> thin compared with a spun toroid?


Wall thickness isn't all that important, electrically.

Probably the more common use of dual dryer vent toroids is that they 
are cheaper.  At hundreds of bucks a crack for the spun ones, most 
people have only one sitting around to fool with.