In {TAIL ~ addition}, a voltage is induced in {HEAD ~ the secondary winding Ls} of transformer T, such that terminal 20 of diode bridge network 16 will be at a relative positive potential as compared to terminal 22 of such bridge network 16 
In { TAIL ~ addition } , a voltage is induced in { HEAD ~ the secondary winding Ls } of transformer T , such that terminal 20 of diode bridge network 16 will be at a relative positive potential as compared to terminal 22 of such bridge network 16
OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH