A voltage is induced in the lower end A of lower winding L1 of such transformer to produce {HEAD ~ a voltage VB} substantially equal to {TAIL ~ 2E} between ends A, B of the primary of transformer T; here, however, the voltage at end 
A voltage is induced in the lower end A of lower winding L1 of such transformer to produce { HEAD ~ a voltage VB } substantially equal to { TAIL ~ 2E } between ends A , B of the primary of transformer T ; here , however , the voltage at end
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL 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