bc547	= BC546,2SC945,2SC828A
2sc1970	= MRF227,2SC1589
2sc2570	= ECG10,2SC3510,2SC3128
MPF102	= 2SK161,LTC451,ECG451,TIS58,2N5484
2sc1815	= ECG199,2SC900,2SC1000,2N5232,2SC734,2SC2320,2SC945,2SC1175,2SC1318,2SC1345,2SC24