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5550

  1. MartinAudio

    Sony TAN-5550 Restoration Thread

    Some time ago, a friend of mine inquired about purchasing a VFET amplifier, and was veering towards a Sony TA-N7b. However due to both their expense and rarity, he decided to go with the more common and easily servicable TAN-5550 model. I've worked on a few of these at this point and know the...
    • MartinAudio
    • Thread
    • 5550 death diode rebuild recap restoration servicing sony tan-5550 vfet
    • Replies: 37
    • Forum: Solid State
  2. N

    Telefunken 5550 MX with RB45 Speakers

    Does anybody have any idea what my all original opus 5550MX and RB45 might be worth?
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