Re: Help with analyzation theory

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Ed Phillips <evp@xxxxxxxxxxx>

"First, I don't quite understand how the i(t)=C(dv/dt) can get so high
(ie hundreds of amps). I also don't fully understand the nature of
the 60hz to high frequency tank circuit.

What's throwing me off is how I'm looking at the circuit in the
manner of an LC, the cap/indu reactance, and etc., I'm trying to
piece things together, but they don't seem to fit, especially when I
add the spark gap. The math equations keep forming odd numbers, such
as 13269 amps! I'm not trying derive everything, but just again, see
how things (mathematically) fit together."

	Nothing necessarily wrong with that value, although it sounds pretty
high.  Remember you are dealing with a capacitor charged to a relatively
high voltage and discharged through a low-resistance switch (the spark
gap) into a relatively low value of inductance.  The peak current will
be Vpeak/sqrt(Lpri/Cpri).  For example, if you have a capacitor of 0.02
ufd charged to 15000 volts and shorted to an inductor of 56 uH (resonant
frequency of 150 kHz) the peak current will be around 283 amperes.  With
bigger capacitors and/or higher voltages the currents can be much
higher.

Ed

"Ohm's law does work!" [If you apply it right.]