A second secondary winding of the transformer is connected between {HEAD ~ the other end} of {TAIL ~ the first secondary winding} of the transformer and the junction of the d.c. power source and the primary winding of the transformer 
of
A second secondary winding of the transformer is connected between { HEAD ~ the other end } of { TAIL ~ the first secondary winding } of the transformer and the junction of the d.c . power source and the primary winding of the transformer
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL 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