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2sb557

  1. mauser

    Replacements for 2SB557 and 2SD427 transistors

    Hello, I have some dead transistors in a Sherwood S-9910, and am looking for a viable new replacement, since it seems that Chinese counterfeit transistors are actually a thing. I have seen 2 different sets of transistors mentioned consistently in the forums, and am interested in the difference...
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