In another embodiment, the receiver includes a magnet assembly, {TAIL ~ an armature} having a moveable portion and a fixed portion, and {HEAD ~ a coil assembly} 
In another embodiment , the receiver includes a magnet assembly , { TAIL ~ an armature } having a moveable portion and a fixed portion , and { HEAD ~ a coil assembly }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD