79 Vibro Champ issues.

Discussion in 'Amp Tech Center' started by jwp2, Feb 17, 2020.

  1. Whatizitman

    Whatizitman Friend of Leo's

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    Yes it is soldered to the chassis. Or it should be. Look carefully at pin 2. The little bit of braided wire from pin 2 that leads to a gob of solder on the chassis right in front of the next tube (to the right of the 6V6, looking at the back side of the chassis). If it's not connected there (broken connection), then that's the problem.
     
  2. jwp2

    jwp2 Tele-Holic

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    324AF805-CFEB-4C62-9457-59844271EBBE.jpeg
     
  3. jwp2

    jwp2 Tele-Holic

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    Here is a shot of the 6v6 power tube socket. If I need to run a ground from pin to the chassis, I feel confident enough to do it.
     
  4. Ten Over

    Ten Over Tele-Holic

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    Holy Cow
     
  5. Whatizitman

    Whatizitman Friend of Leo's

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    6v6braid2.jpeg
     
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  6. muchxs

    muchxs Doctor of Teleocity

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    If you're putting your 6V6 in the socket with the two red and the two yellow wires... that's your problem.
     
  7. Whatizitman

    Whatizitman Friend of Leo's

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    No, that is the rectifier socket. You will not need to add anything that wasn't there.
     
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  8. jwp2

    jwp2 Tele-Holic

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    That’s the socket it’s always been in. Do I need to ground this socket at pin7?
     
  9. jwp2

    jwp2 Tele-Holic

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  10. muchxs

    muchxs Doctor of Teleocity

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    5Y3 goes in the socket with the yellow and red cloth leads. 6V6 goes in the socket with the plastic insulated wire.

    Trust me on this.
     
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  11. Whatizitman

    Whatizitman Friend of Leo's

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    No. Stop everything. That is the rectifier socket. The one closest to the power transformer. Do not put a 6V6 in that socket. Carefully turn everything off. Either take it to a tech, or do some reading up on amps before coming back to it.

    https://robrobinette.com/How_Amps_Work.htm
     
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  12. jwp2

    jwp2 Tele-Holic

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    I totally trust you this.
     
  13. jwp2

    jwp2 Tele-Holic

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    Yeah, it’s tech time for sure.
    Guys, I really appreciate all your input.
     
  14. jwp2

    jwp2 Tele-Holic

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    Actually I’ll try a 5Y3 before I take it to the amp tech. Thanks again for all the help.
     
  15. schmee

    schmee Doctor of Teleocity Silver Supporter

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    If that's the case and the tube is not lighting up... you need to clean and tighten the tube socket.
     
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  16. jwp2

    jwp2 Tele-Holic

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    Thanks Schmee, will do.
     
  17. jwp2

    jwp2 Tele-Holic

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    Hey guys, just a little update,
    I just installed a new rectifier tube in the Correct socket and she fire up and is working well again.
    I want to thank you all for taking the time out of your day to help me troubleshoot my little amp.
    You guys are the best!
     
  18. Marcusin

    Marcusin TDPRI Member

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