The primary winding is energized across {HEAD ~ the first lead} and the second lead and {TAIL ~ the secondary winding} is energized across the second lead and the third lead 
The primary winding is energized across { HEAD ~ the first lead } and the second lead and { TAIL ~ the secondary winding } is energized across the second lead and the third lead
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH