hi there newbe from uk

just joined site for first time. new to the site so it may take some time.i have been into electronics for a long time now.did do my city and guilds leval one in electronic serviceing.sometime a go just never had the time to do the rest.joined because i need help with an amplifier i am looking at for a friend. a beast of a one. just a bit stuck with geting a scmatic for it. found the site because of the transitors it uses 2sc5200/sa1943. any help well be gratfull.