try audiokarma.org then go to exclusivly sansui,youll find all sorts of info,like substitutes for transistors that are obsolete,a guy there called echowars & dr audio are experts on vintage sansui,goodluck
redrooster
September 2008
google ............look for..........maplins or radiospares
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix audio systems.