Transistor ----------------- Original ------ Equivalent
tr11, 12 2sa798 2sa798 tr13, 14, 23,24 2sc1845 2sc1845 NPN tr15, 16 2sd438 2sc4793 drive NPN tr17, 18 2sb560 2sa1837 drive PNP tr19, 20 2sc1827 mje15032 main NPN tr21, 22 2sa769 mje15033 main PNP