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Dagnall C2668 color code

Discussion in 'The Workbench' started by JM5010, May 10, 2021.

  1. JM5010

    JM5010 Active Member

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    Finishing up a build in which i’m confused about the wires on the primary side of this C2668.

    Which wires go to the output tube sockets and which one is the center tap?
    47AFF1E4-BF9E-4439-AD51-6D5A4C562A57.jpeg

    E1095168-54DC-494D-8E7B-019D63307A11.jpeg
     
  2. Chris-in-LA

    Chris-in-LA Well-Known Member

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    On my Plexi, the brown goes to the high voltage and the red and white go to pin 3. Put your ohmmeter on the brown lead and check resistance to the red, and then to the white. You should get a similar reading.

    7AABAD56-1FB5-4E8F-99DB-3A8C1ED916A2.jpeg
     
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  3. neikeel

    neikeel Well-Known Member

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    Brown is CT
    But put a rubber grommet around that chassis hole before you wire it up or you will have more expensive sizzling.
     
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  4. JM5010

    JM5010 Active Member

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    According to a 2203 schematic found in Marstran, I believe the white wire is the CT?
     

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  5. neikeel

    neikeel Well-Known Member

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    Put a meter on it and the middle one will be clear.
     

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