The coil assembly includes {HEAD ~ a bobbin} and {TAIL ~ a conductive wire} wound around the bobbin 
The coil assembly includes { HEAD ~ a bobbin } and { TAIL ~ a conductive wire } wound around the bobbin
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH