Questions I would like to ask Mr. Tesla

[gyulasun]

So he must knew before 1892 about those vibration rates, how to create them and how many cycles per second were.

He may have reached that conclusion after calculations? How can we calculate nowadays a frequency resulted from a disruptive discharge from a capacitor into a copper bar?

I agree he must have known how to measure frequency etc well before 1892 or so.  The patents I referred to seem refinements and his new developments to earlier existing methods.

Well in the 1890 years, electric motors with known RPM already existed and Tesla used such motors to operate his circuit controllers.  And yes I think he calculated the number of interruptions made by his various controllers with different number of contacts (buried the contacts later in mercury). He has several patents specifically on circuit controllers.  So he must have calculated how many interrupts his controller made in a circuit so the number of discharges from a cap must have been known by him with sufficient precision.

rgds,  Gyula