Method and apparatus for keypads with push buttons and in particular to integrating different parts of a keypad to provide better and more secure functioning. The member may be positioned in a gap between the stator coil corona suppression covering and a stator core clamping finger extending from the stator core proximate the stator coil. The metal nanoparticles can be administered intravenously, intra-arterially, or locally to achieve specific loading in and around the target tissue. In addition, the size and weight of the present invention are smaller than other AC constant frequency generators working at variable speed.