Grounding (?) issue with Fisher X-100

Discussion in 'Fisher' started by beatcomber, Jul 13, 2017.

  1. beatcomber

    beatcomber AK Member

    Messages:
    17,722
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    Lexington, Massachusetts
    I will now!

    I believe he might have suggested that it might have been the transformer?
     

     

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  2. gadget73

    gadget73 junk junkie Subscriber

    Messages:
    35,777
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    Southern NJ
    could be, if the insulation was internally leaky or if it shorted to the frame you'd have voltage on the chassis. Luckily power transformers are less critical to replace than outputs. You can get those rewound or duplicated without near so much fuss.
     
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  3. beatcomber

    beatcomber AK Member

    Messages:
    17,722
    Location:
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    I sure hope that his plan to ground the power cord is all that is needed! I should know by the end of the week.
     
  4. beatcomber

    beatcomber AK Member

    Messages:
    17,722
    Location:
    Lexington, Massachusetts
    Picking it up tonight!

    The tech says it was just excessive stray current from the power transformer, and that grounding the power cord fixed the issue. I'm picking it up tonight!
     
  5. Patrice B

    Patrice B AK Subscriber Subscriber

    Messages:
    2,130
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    Good news, I'm happy for you!
     
  6. beatcomber

    beatcomber AK Member

    Messages:
    17,722
    Location:
    Lexington, Massachusetts
    Well crap, after using it for a few hours, and then coming back later and turning it back on, the right channel is basically dead. Wtf?

    Back to the shop it goes. Very disappointing.
     
    Last edited: Aug 5, 2017

     

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  7. beatcomber

    beatcomber AK Member

    Messages:
    17,722
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    Problem solved: one of the 12AX7's had gone south. I'm back in business.
     
  8. Thumper

    Thumper Active Member

    Messages:
    209
    Location:
    Laurel, MD
    Good news!
     
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  9. beatcomber

    beatcomber AK Member

    Messages:
    17,722
    Location:
    Lexington, Massachusetts
    To celebrate, I just ordered a quad of 1958 RCA long black plate 12AX7's. :D
     

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