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Re: calculations



Original poster: "D.C. Cox" <resonance@xxxxxxxxxx>



Since your voltage is so low, I would definitely consider going to a 4 inch dia coil as inductance goes up as square of the radius of the coil and inductance x rate change of current (dI/dt) is what produces voltage.

Dr. Resonance


hello, i am going to be building a tesla coil modled after one on the internet that's a 4kv 4800pf primary 11 turns of 1/4 inch coper secondary 1000 turns of 30 AWG with a pvc diameter of 2.5 inches. i was wondering how do you get these numbers. like how do you know how wide the coil has to be. or the turn ratio, or how do you find the frequency of the coil so you can determine the value of the capacitor you need. any calculations that you guys know to solve for these things would be very helpful. i would like to get to the point where i can make a coil totaly on my own. thanks agian for all the help
-michael