An inductor circuit includes a magnetic interface generator that generates a magnetic interface at a center frequency f0. During an erase operation, one or more electrical erase pulses of fixed number, duration and voltage waveform are applied to memory cells in an addressable block of the memory device array to fully erase all bits in the block. The support flanges are formed by pinching the blank during the hydroforming process to provide a double thickness flange. The antenna contact-and-connection portion is brought into contact with and is connected to the end of the antenna rotary shaft.