{TAIL ~ The servo amplifier} 188 also receives a signal on line 192 from a change detector 194 which will initially be at the 3 volt level, {HEAD ~ i.e. the signal level} representing the desired workpiece dimension 
{ TAIL ~ The servo amplifier } 188 also receives a signal on line 192 from a change detector 194 which will initially be at the 3 volt level , { HEAD ~ i.e. the signal level } representing the desired workpiece dimension
TAIL 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH