Identify this ECC 83 tube please

Discussion in 'The Squawk Box' started by The_Nuge, Aug 28, 2017.

  1. The_Nuge

    The_Nuge Senior Member

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    Hi Experts!
    Any idea what this ECC 83 tube is?
    [​IMG]
    I fished it out of an old JMP Marshall (I think...) and it sounds great in V2 of my Ceriatone HRM!
     
  2. Splattle101

    Splattle101 V.I.P. Member

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    Looks like a Chinese 12AX7
     
  3. Splattle101

    Splattle101 V.I.P. Member

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    Got a couple of minutes to give a fuller answer. It does look like a Sino 12AX7 / ECC83. The hints are:
    1. the shiny metal brace between the micas;
    2. the triple micas themselves
    3. the 'wobbly' appearance of the micas.

    Here's an image of a typical Chinese 12AX7:
    [​IMG]

    Chinese 12AX7s are good. They usually have higher gain than the Slovak and Russian tubes. A lot of Marshall drivers like 'em. The selected, premium 12AX7s you can buy from some vendors are usually selected, tested Chinese tubes.

    So it's no surprise it sounds good. They often do.
     
  4. The_Nuge

    The_Nuge Senior Member

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    Just a quick update: a friend in the know says it's a Beijing 6N4!
     
  5. slaveunit

    slaveunit Senior Member

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    Does it have a square getter in the top area? A 6N4 will have one.
     
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  6. The_Nuge

    The_Nuge Senior Member

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    Yes, square getter!
     
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  7. Kris Ford

    Kris Ford Senior Member

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    Those are the good ones apparently, as I was told on the MF earlier.
     
  8. slaveunit

    slaveunit Senior Member

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    Ohh yea I see it now. I didn't attempt to zoom in before.
     

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