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tk-150u

  1. iPhoneSasuke

    Trio KA2000 (2SB89A / 2SB56) transistor replacement

    I have the Kenwood/Trio TK-150A (same as KA-2000). But my Ge transistor were blown a few years ago due to my mistake. So I need to replace it but there are no direct sub for 2SB89A available (Q4, Q5). But there was the KA-2000A with the same schematic but completely on a Si transistors. The...
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