A permanent magnet with its one face in contact with one end face of the secondary core is supported on the primary bobbin, while {HEAD ~ the other face} of {TAIL ~ the permanent magnet} is in contact with the primary core 
A permanent magnet with its one face in contact with one end face of the secondary core is supported on the primary bobbin , while { HEAD ~ the other face } of { TAIL ~ the permanent magnet } is in contact with the primary core
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH