The flip flop 38 provides an output that is only dependent on {TAIL ~ the very fast fall times} of {HEAD ~ the outputs} OUT and OUT B 
The flip flop 38 provides an output that is only dependent on { TAIL ~ the very fast fall times } of { HEAD ~ the outputs } OUT and OUT B
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH