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Hammond H100 volume drop

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  • Hammond H100 volume drop

    Dear Organforum members

    I recently fell in love with a Hammond H395 (which is technically a H100, later version, with a built-in drumcomputer). I have spent some hours now to replace and glue the everbreaking keys on both keyboards, then I oiled the TG , which is freely spinning now. For better "pull out" of the tone generator I did unplug all connectors that are around the TG. After the job was done, I reconnected all plugs and noted that the volume of vibrato, non vibrato, "drum" channels was much lower now. The only channel with normal volume is the reverberation. Prior to disconnecting / connecting the plugs, all volume was fine.

    I did not change anything on the power amplifier, but obviously something happened.

    Does somebody know, which tube is for what signal channel or what your suggestion is for checking next ?

    Thanks
    Matthias

  • #2
    Its fixed - I found some organforum entries, that were leading me to the "delay board" - I replaced both electrolytic caps and everything is good. "How To" is attached
    Matthias
    Attached Files

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