Dollard Tesla Coil Calculator

X axis, frequency; Y axis, secondary diameter, cm

20 Turn Secondary Coil

`f =` ?

Conductor Length

`l_s = (4.8x10^9)/f`

`l_s =` ?

Diameter

`w_s = (7.6x10^7)/f`

`w_s =` ?

Height

`h_s = (1.5x10^7)/f`

`h_s =` ?

Ratio of Height/Width

`r_s = h_s/w_s`

`r_s =` ?

Max Hollow Conductor Diameter

`d_s = (4.8x10^5)/f`

`d_s =` ?

Max Hollow Wall Thickness

`delta_s = 25/sqrt f`

`delta_s =` ?

Max Solid Conductor Diameter

`s_s = 51/sqrt f`

`s_s =` ?

Tentative Extra Coil Dimensions

Length

`l_e = pi^2/4 l_s`

`l_e =` ?

Width

`w_e = 0.4 w_s`

`w_e =` ?

Length of one turn

`l_1 = pi w_e`

`l_1 =` ?

Active Copper Diameter

`delta_e = 4/pi^2 delta_s`

`delta_e =` ?

Max wire size

`d_e = d_s`

`d_e =` ?

Number of Turns

`N = l_e / l_1`

`N =` ?

Spacing

`s = -((d_e - N)/(N - 1))`

`s =` ?

Height

`h_e = N * s`

`h_e =` ?

Ratio of Height/Width

`r_e = h_e / w_e`

`r_e =` ?

Ratio of Extra Coil Length/Secondary Length

`r_c = l_e / l_s`

`r_c =` ?