sphere spins, but in wrong plane; around wrong axis

Magnetic sphere is N38, diameter 1 (26 mm). Coil is a basic vortex coil, 120 notches; stepping 41, aready energized with 180 phaseshifted square wave signals ca. 13 Hz at start of video. Powered by a 12 V car battery, with a 21 W car light bulb as load in each circuit. Signal generation by sqare wave generator, 50 duty cycle. I use a DDS20 digital square wave generator which I bought from