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au666

  1. zastin17

    Au-666 Protection Block 1RC5 Replacement Diodes??

    I am just about done rebuilding a Sansui Au666. I have replaced almost every single Transitor! Including the Outputs. This thing has a terrible failure at some point!!! I was battling some strange DC wonkyness on the output. Common to both channels. Turns out, 1x IRC5 Diode ""thing"" is...
  2. zastin17

    Sansui AU-666 Transistor Substitution List F-1159 - AU666

    For the Sansui AU-666, I hope this can help somebody in the future!!!! Driver PCBs and the UFO transistor was a bit of a rabbit hole for me. Also will cover the F-1159 Driver PCB's As an FWI, PAY ATTENTION TO DRIVER BOARD ORIENTATION UNLIKE I DID, THE SECOND YOU INSTALL THEM BACKWARDS and...
  3. zastin17

    Sansui AU-666 Transistor Substitute? F-1231 Driver/Bias PCBs.

    "Title EDIT" Boards are F-1159, Not F-1231 So Transistors are something I have not learned much about. And when the fail on the tip of a hat. I just don't know what to do about it...... Lol. "I'M BLIND!" Anyway, this Sansui Au-666 worked a few years ago. Sounded wonderful! So good infact, I...
  4. B

    AU-666 +20V DC offset on each channel?

    Hi AK I have an old AU-666 that has been recapped and gotten new transistors all around since it was in a really bad shape. However when i turn it on now it has a DC offset of around -28V on both channels measured with no load, and I have run my head into the wall as to why.. All new...
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