Are these not 2SB and 2SD which should be available at your local supplier Al G Al's TV-Electronics Pembroke Ont. Canada Robinson Electronics wrote: > Does anyone have, or know where to obtain (NLA) transistors? > Q508 --- D845 "shorted" > Q509 --- B755 "shorted" > Found R521 "burnt" > These transistors needed to repair this Onkyo receiver are no longer > available from any distributor I can find. > Checked with Onkyo - says no substitute either. > If anyone has any advice, I would appreciate it very much. Thanks. David. > > Robinson Electronics > 1075 Sweeten Creek Road > Asheville, NC 28803 > Ph./Fax. 828 274-3787 > Toll Free. 1-888 ROBELECT > www.robinsonelectronics.com > www.robelect.com > Mailto: RobinsonElectronics@xxxxxxxxxxx > > > ----------------------------------------------------------------------------- > Lost Password: > http://www.tech-assist.org and select "Login Problems?". > Email Archives: > //www.freelists.org/archives/techassist/ > ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/