Serious brain fart

Discussion in 'Amp Tech Center' started by ce24, Mar 31, 2020.

  1. ce24

    ce24 Poster Extraordinaire

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    Well...i was rolling tubes in my homebrew vibrio champ......put a JJ6v6S into the rectifier socket. Of course nothing turned on...cept now that i have the correct tubes in the right spot it wont turn on.....fuse good.....no smoke. No pilot light.
    HELP!
    thanks and cheers
     
  2. galaxiex

    galaxiex Tele-Afflicted

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    My guess...
    Power Tx has an internal fuse.
    It’s blown.
     
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  3. ce24

    ce24 Poster Extraordinaire

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    Thanks ill check it out.....
     
  4. ce24

    ce24 Poster Extraordinaire

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    IMG_20200331_171903855.jpg here is the tranny...a Weber.. Not sure how to test it to see if it's blown. Have multimeter....
     
    Last edited: Mar 31, 2020
  5. galaxiex

    galaxiex Tele-Afflicted

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    First, UNPLUG AMP FROM WALL OUTLET.

    You will want to test for ohms and/or continuity on the primary winding of the Tx.

    This could be done thru the power cord IF you are certain how the cord is wired.
    Power switch would need to be "On".

    OR, disconnect primary Tx wires and connect multi-meter probes to those primary wires.

    The actual reading is not so important, we are just testing to see if there is continuity in the primary winding.

    No continuity, then likely there is a hidden internal fuse in the Tx that has blown.

    Sometimes they are replaceable, sometimes not.

    Could call Weber and ask if that Tx has a fuse....
     
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  6. ce24

    ce24 Poster Extraordinaire

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    Thanks for your response.....all the windings have continuity....so I just checked the fuse for continuity,and who woulda thunk, it was dead....apparently the slow blow windings look ok with no blown gaps. Buuuttttt nooooo when it's blown it still looks good. So...I learned something useful today and that's a tough thing when your 69.lol. thanks again galaxiex!
    Cheers
    Ce24
     
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  7. galaxiex

    galaxiex Tele-Afflicted

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    Glad you found it. :)
     
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