Abstract: Method and winding apparatus for winding a coil that may be used in a high voltage coil assembly. The method allows providing a bobbin. The bobbin may include at one end thereof a start wedge having a wedge angle relative to the longitudinal axis of the bobbin. Relative alignment is provided between the bobbin and a wire feeder device so that a strand of wire from the wire-feeder device is fed perpendicular relative to a layer of winding that, upon rotation of the bobbin, progressively propagates along the longitudinal axis of the bobbin with a predefined winding angle.