When FET 116 conducts, the supply voltage at {HEAD ~ 110, 3.2 volts}, is supplied to R1 resistor 120 which is disposed between the device B 102 and {TAIL ~ device B} 130 
When FET 116 conducts , the supply voltage at { HEAD ~ 110 , 3.2 volts } , is supplied to R1 resistor 120 which is disposed between the device B 102 and { TAIL ~ device B } 130
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 TAIL TAIL TAIL TAIL TAIL TAIL OTH