smudger395 Posted February 25, 2008 Share Posted February 25, 2008 Hi, I am repairing an old Matrix P1300 Mosfet amp and I am having trouble identifying a device It is a driver manufactured by ON semiconductors Seems to be a PNP driver all that is on the package is R11 then DF below seems to be driving a BF720. Any info on the device or a shematic would be most appreciated cheers. Smudger Link to comment Share on other sites More sharing options...
KevinE Posted February 25, 2008 Share Posted February 25, 2008 Hi smudger, Ive checked the schematic and there's neither an R11 or a BF720. My diagram shows Japanese parts eg 2SA / 2SD etc. Can you tell me the circuit reference number of the unknown transistor and the driver (for reference) eg T2, T5 etc. Link to comment Share on other sites More sharing options...
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