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Power transistor number - Audio Players & Recorders

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  • Anonymous Jan 25, 2010

    Thanks for the reply my amp sansui au 217

  •  Grubhead
    Grubhead May 11, 2010

    You will have to tell us the model number and maker of the device it has come out of. You could also add the PC board number. Hopefully someone will be able to tell the transistor number then!

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  • Audio Player... Master
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Hi again! Been thinking about this and you might not need to wait for someone to answer. I assume the transistor in question has blown apart or burnt up so you can't read the number?
However does it come off the heatsink as part of the main amp? If it does then it might have a brother around it. For if it is say the left or right channel transistor, then the other channel will have the same type transistor. Remember the left and right channels are copies of one another. If you see 4 transistors on the heat sink then it's a push-pull amp. They work in pairs, one pair for each channel. By the way it's best to replace the pair, even if only one is blown.
If on the other hand the blown transistor is from the power supply section, then you will have to wait for someone to help, or get the service manual.

Posted on Jan 25, 2010

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1 Answer

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