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Power Transformer Blown?

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  • Power Transformer Blown?

    My 5E3 is blowing fuses. I removed the 6V6's and it still blew the fuse. I removed the 6V6's and 5Y3 and it still blows fuses. My amp has a standby and the fuse is blowing before I even engage the standby. I am assuming the only things left are a bad power tranny or a filter cap. Any thoughts?

    Thanks,
    Tim C.

  • #2
    "I am assuming the only things left are a bad power tranny or a filter cap. Any thoughts?" It could only be a bad main filter cap if the filter cap connects to the hot side of the standby switch?

    Check for shorts in the heater wiring.

    Disconnect & isolate ALL primaries, if it still blows fuses, then yes it's the PT.

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    • #3
      Thanks! I'll let you know.

      Tim C.

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      • #4
        I am a dufus, I mean't to say "Disconnect & isolate ALL SECONDARIES"!

        Apologies.

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        • #5
          No problem. I knew what you meant.

          Thanks!!

          Tim C.

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