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Re: Coil dimensions

Original poster: "Dr. Resonance" <resonance@xxxxxxxxxx>

On coil diameters of 4 inches and above, always use a flat Archmedian spiral. Sec OD to sec winding length should be in the range of 1:4 ratio. Usually procedure is to set approx 8-12 turns on primary and adjust capacitance to match resonance point. The equations for inductance of flat spirals and resonance are in the Tesla List archives.

Where is your physical location --- city?

Dr. Resonance

What determines the coil dimensions for the primary and secondary coils (ex. secondary height, number of coils on primary and secondary, shape of primary, diameter of primary and secondary, etc.)? What equations are used? Thanks.