{TAIL ~ The readhead asymmetry} is determined by the method of this invention by measuring {HEAD ~ an output voltage pulse} of the readhead, when it is excited by magnetic pulses both forward and rear of its read gap 
{ TAIL ~ The readhead asymmetry } is determined by the method of this invention by measuring { HEAD ~ an output voltage pulse } of the readhead , when it is excited by magnetic pulses both forward and rear of its read gap
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH