With {HEAD ~ the upper winding L2} and lower winding L1 having {TAIL ~ an equal number} of turns and with the windings having the polarity indicated by the dots, a voltage substantially equal to E will be produced between the center tap CT and the lower end A of lower winding L1 
having
With { HEAD ~ the upper winding L2 } and lower winding L1 having { TAIL ~ an equal number } of turns and with the windings having the polarity indicated by the dots , a voltage substantially equal to E will be produced between the center tap CT and the lower end A of lower winding L1
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH