The LL4602 is a C-core line output transformer for unbalanced (single-end) drive. Internal structure is similar to the LL5402. LL4602 usage (turn ration 1 : 1) Pin 1 + Pin 5 primary ground pin 2 + pin 4 primary signal in (+) pin 3 not used pin 7 out + pin 10 out - pin 6 + pin 9 connect