FIG. 14 shows an embodiment of an inductive coil 126 having high magnetic permeability that is adapted to be disposed within the housing 121 of the electronic key 120 adjacent the transfer probe 125. As shown herein, the inductive coil 126 comprises a highly magnetically permeable ferrite core 127 surrounded by a plurality of inductive core windings 129. The inductive core windings 129 consist of a length of a conductive wire that is wrapped around the ferrite core. As is well known, passing an alternating current through the conductive wire generates, or induces, a magnetic field around the inductive core 127. The alternating current in the inductive core windings 129 may be produced by connecting the leads 129A and 129B of the conductive wire to the internal battery of the electronic key 120 through the logic control circuit. FIG. 14 further shows an inductive coil 146 having high magnetic permeability that is adapted to be disposed within the housing 141 of the security device (e.g., cabinet lock) 140 adjacent the transfer port 142. As shown herein, the inductive coil 146 comprises a highly magnetically permeable ferrite core 147 surrounded by a plurality of inductive core windings 149 consisting of a length of a conductive wire that is wrapped around the ferrite core. Placing the transfer probe 125 of the electronic key 120 into the transfer port 142 of the cabinet lock 140 and passing an alternating current through the inductive core windings 129 of the inductive core 126 generates a magnetic field within the transfer port of the cabinet lock in the vicinity of the inductive coil 146. As a result, an alternating current is generated, or induced, in the conductive wire of the inductive core windings 149 of inductive coil 146 having leads 149A and 149B connected to the logic control circuit of the cabinet lock 140. The alternating current induced in the inductive coil 146 of the cabinet lock 140 is then transformed into a direct current in a known manner, such as via a bridge rectifier on the logic control circuit, to provide direct current (DC) power to the cabinet lock. The DC power generated in the cabinet lock 140 by the inductive coil 126 of the electronic key 120, may be used, for example, to unlock a mechanical lock mechanism disposed within the housing 141 of the cabinet lock.