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ecc82

  1. Hifisaac

    Mystery Japanese vintage P2P tube preamp with Luxman transformer, Noriyuki Kawano Sound inc.

    Just picked up this preamp and I've exhausted my Internet skills trying to learn anything about the manufacturer. Here's what I have learned: Noriyuki Kawano the person is a nuclear disaster researcher. The patent numbers on the preamp are for the stenciled lettering, not the preamp itself...
    • Hifisaac
    • Thread
    • ecc82 ecc83 infomation request japanese tube amplifier japanese vintage luxman mysterious
    • Replies: 20
    • Forum: Tube Audio
  2. E

    Identifying Telefunken tubes

    Hi all! I've almost always bought known, identified, tested tubes from reputable buyers, and avoided the lure of the "huge box of mystery tubes". But yesterday, I came across a giant collection of tubes which seemed NOT to come from a TV repairman, or Soviet MIG engineer, but a guy who...
    • Eric Brandon
    • Thread
    • ecc81 ecc82 ecc83 identification mystery telefunken
    • Replies: 20
    • Forum: Tube Audio
  3. F

    Tubes for Unison Research's Simply Italy?

    Hello there. I own a Unison Research Simply Italy, which I adore. It uses two EL34 and two ECC82 (12au7) as rectifiers. So recently I decided to upgrade the 12au7's. After doing a lot of research, I went with the Psvanes. Right out of the box the sound was clearly more open and detailed than...
    • fedocable
    • Thread
    • 12au7 biasing ecc82 psvane simply italy tube amp tubes unison research valves
    • Replies: 2
    • Forum: Tube Audio
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