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  1. Jomp

    Disappointment and frustration

    I am a vintage audio enthusiast who is keen to troubleshoot and repair my own vintage gears but I am not a qualified technician so I depend a lot on audio forums to help me troubleshoot. I've found a lot of good and relevant problems raised and a lot of experts participated but 99% of the time...
  2. Jomp

    Pioneer SA-7100 - low volume

    I bought this vintage Pioneer SA-7100 from a drift store, cleaned it up, changed (swapped out) the filter capacitors, de-oxited the other boards, then connected it through my load lamp - the relay clicked and the light bulb dimmed out. I measured the voltage drops on the rails with my...
  3. Jomp

    Sony TA-4650

    I just bought a Sony TA-4650 from a person who claimed to be the original owner and that the amp was original. Upon receiving it I hooked it up in my garage system and it worked flawlessly. I then decided to make the mod to make it more reliable, i.e. change R313, 314, 363, 364 to the revamped...
  4. Jomp

    Nakamichi BX300 - running hot

    Hello all, my Nak BX300 runs a bit too hot after one hour of use - the transformer is heated up to 46°C and the two power transistors that are bolted to a heatsink 62°C. Has any one had this problem before, please share your experience if you did. I also posted this in the Tapeheads forum but...
  5. Jomp

    Sansui eight with relay - weak FM signal

    Hi AKers, I am an electronics novice but a Sansui lover. I need your help with my Sansui eight that has a relay - it has 3 problems: 1. the FM signal maxes out at 4 and the Mono button must be pushed in to get sound from both speakers. If the Mono button is not pushed in I only get sound from...
  6. Jomp

    Sansui AU-9500 DC thump

    Hello AKers, I am new here but have been using AK for references for many years. I finished restored my Sansui AU-9500 sometime ago, i.e. recapped, transistors replaced, rectifiers replaced, relay replaced, and bias adjusted, but ran into problems with DC thump in the right channel at turn on ...
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