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24th February 2007, 03:51 AM
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#1 |
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diyAudio Member
Join Date: Feb 2007
Location: Akron, Ohio
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Nec Transistors
Hi,
I am attempting to repair a Kenwood KA-3500 stereo amplifier that I bought used on Ebay. I have found that two NEC power transistors (B618 R63, and D588 062) are bad. I presume one is PNP and the other is NPN. Also, there is a bad small signal transistor that feeds one of the power transistors above. All I have on that transistor is part # A733Q163. I don't know if it is an NEC part or not. Does anyone know where I can buy these three transistors? Are there equivalent part numbers (of other manufacturers). Also, does anyone know where I can find a schematic for this amplifier? Thanks, Timothy Perri |
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