phase linear 700b

OK guys...need some help here. I've had my 700B for a few years and the left channel went out, tried some troubleshooting but had a little "incident" where all of the magic smoke came out so I've decided it's time to bite the bullet (and rob a bank) and go full WOPL upgrade on the old gal. I...

hola amigos hoy compre una 700b rota cuales son los mejores transistores? atras tiene; NEC 2SD555 Q41C, F PL909 631, RCA 66546, RCA 66430, MJ15024G BM1449. tengo que remplasar 4 pero no se cual comprar ???? lleva 24 iguales? gracias