A tunable projected artificial magnetic minor includes a plurality of artificial magnetic minor cells and a control module. In a further embodiment, the suspension assembly also includes a deflector located adjacent the opening. Conventional floating gate devices need ten or more extra masks. A shaping aperture and a NA aperture are arranged in front locations of the electron gun. Simultaneous opening or closing of the nozzles is performed by way of corresponding angular displacements of the actuator. The linking rack is pivotally mounted in the frame assembly.