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Re: Rotary Sparkgap



>  have seen recently that it is preferred to have a high rpm spark gap. How
> many
> breaks per second does a 7500 or 10000 rpm motor usually make? I have build

Has anyone experimented with counter-rotating rotors where one rotor has 
a different number of electrodes than the other?  This gives a "total 
number of makes and breaks the product of both two numbers". Tesla mentioned 
this in his Colorado Spring notes on July 27, 1899.