{HEAD ~ A unity gain amplifier} 120 has its input connected to the collector of transistor 108, and furnishes {TAIL ~ VREF} at its output 129 
furnishes
{ HEAD ~ A unity gain amplifier } 120 has its input connected to the collector of transistor 108 , and furnishes { TAIL ~ VREF } at its output 129
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH