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sansui au-9500

  1. P

    Sansui AU-9500 – Distortion in Right Channel (Need Advice)

    Hi everyone, I’m working on a Sansui AU-9500 and could use some advice. Background / What I’ve done so far: I bought this amp with only one working channel. On the right channel power amp board, I found: Burned resistors Two bad transistors One shorted output transistor I replaced all the...
  2. L

    Looking for detailed diagram for Sansui au-9500 volume pot

    I’m hoping someone out there other than myself has noticed a severe lack of information on wiring the correct colored wires to the volume pot in the sansui au-9500? I’m having a ton of trouble trying to decide what wires go where as I am semi-new to this, and the original volume pot had been...
  3. tutor_turtle

    Sansui AU-9500 mods

    I have done almost every modification found on this site for my AU-9500. (film caps where applicable, new electrolytics throughout, on-semi small signal transistors) While It has come out quite nice, I did not change the outputs (2SA909/2SC1886) or the pre-driver transistors on the F-2029 driver...
  4. C

    Sansui AU-9500 switch required

    Hello All, This is my first on this forum. I have managed to get hold of a sansui Au-9500, which is more of less fully working . However the NR adapter switch is faulty on the front panel. As this is part of the pre-amp circuitry the only way the amp works is if I adjust the switch to is half...
  5. C

    Sansui AU-9500 restoration issues

    Have recapped a few amps and decided to try my hand at recapping my au-9500 using the wonderful illustrations and descriptions from leestereo's posting of scribby31's amp. Somehow I have made a mistake or two and am feeling a bit defeated, but I really loved this amp and figured it was worth a...
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