In this regard, when {TAIL ~ all current} is provided to {HEAD ~ the differential section D1}, and it is fully on, the differential section D2 is altogether off, providing the longest delay 
In this regard , when { TAIL ~ all current } is provided to { HEAD ~ the differential section D1 } , and it is fully on , the differential section D2 is altogether off , providing the longest delay
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH