The bobbin includes an armature mounting structure, usually in {HEAD ~ the form} of slots in flanges of {TAIL ~ the bobbin} 
The bobbin includes an armature mounting structure , usually in { HEAD ~ the form } of slots in flanges of { TAIL ~ the bobbin }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL