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