The second coil provides {HEAD ~ demagnetization} by transferring {TAIL ~ energy} stored in the first coil into the demagnetization circuit 
by transferring
The second coil provides { HEAD ~ demagnetization } by transferring { TAIL ~ energy } stored in the first coil into the demagnetization circuit
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH