PURPOSE: To obtain the cartridge without lowering in sensitivity and left and right unbalance, by providing three sets of moving magnets so that the magnetic axis of moving magnets is in parallel with the vertical and horizontal axes orthogonal to the axis of cantilever and it is balanced to the maximum sensitive axis in line- symmetry.
CONSTITUTION: A magnet holder 3 having two surfaces mutually in parallel and one flat surface orthogonal to them, is fitted to another end of a cantilever 1 having stylus tip 2 made of diamond at the tip. Further, moving magnets 4a, 4b, 4c which are of rectangular isosceles triangle and magnetized toward orthogonal direction to the bottom sides, are fitted on the planes. Further, as the moving magnet 4a having parallel magnetic axis to the vertical axis of the cantilever 1, the direction of magnetization is opposite to other two magnets. Thus, the distribution of magnetic flux is balanced in line-symmetry to the maximum sensitive axis of the modulated grooves of a stereo record disc.