Nealon Resonator

The Nealon Equation

y = (A*sin(B*x+C) + D*sin(E*x+F) + G*sin(H*x+I) + J*sin(K*x+L)) *

(M + N*x + O*x^2 + P*x^3 + Q*x^4) * atan(R*x) * atan(S*(BL-x))

Nealon Resonator

Calculated curve

Graphed in Logger Pro

y = (A*sin(B*x+C)+D*sin(E*x+F)+G*sin(H*x+I)+J*sin(K*x+L))*(M+N*x+O*x^2+P*x^3+Q*x^4)*atan(R*x)*atan(S*(20.1-x))

Front (lauan) and back (copper) of another thin body Nealon Resonator.

Back (Honduran mahogany) of a non-resonator instrument with the same shape.

Back of the instrument shown above.

This outline is created by plotting +y(x) and –y(x) in Graph and removing the axes.

Total length = 29.91 inches

Length of the side around the perimeter.