D-Lab electronics Basic Training Fender Twin 6L6 Tube amp Red Plate Blowing fuses Troubleshoot

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  • Опубликовано: 12 сен 2024
  • Yes, another fine production of Vintage electronics Basic Training, Air Force style! Lets follow Fred's step by step procedure and isolate the fault resulting in a dead Fender Blackface twin! The Defcon level is medium risk. The amp has been assigned a Broken Arrow by Fink. Watch and follow along as we troubleshoot and reveal the culprit. This video is part of a series to teach a common approach to repairing old electronics items, This time a Fender Twin tube guitar amp. Let me know if you enjoy this format and more shall follow. Remember, tell your friends, Subscribe and if you wish-- / dlab_electronics

Комментарии • 50

  • @giulioluzzardi7632
    @giulioluzzardi7632 Год назад +5

    Thanks D-lab, at college our teacher used to call it an "Occular Survey" using the eyes to sus out the circuit. He actually learned his craft just after the 2nd WW and in later life became a teacher, I salute you and him for being excellent teachers.

  • @kenzuercher7497
    @kenzuercher7497 Год назад +2

    I love it! "Look for burned parts" is my tube amp motto!. I also don't care for solid wire in these as they break. Bravo Terry!

  • @brentnearhood8874
    @brentnearhood8874 Год назад +6

    Thanks! D-Lab🔌

  • @zoranstojadinovic1146
    @zoranstojadinovic1146 Год назад +5

    As a owner of '72 red plating twin reverb, thanks. Me and my fender, univoh amps are getting older and this days is hard to find solutions for our ilness 😀

  • @Avi8torDavy
    @Avi8torDavy Год назад +4

    Great video!!! The troubleshooting phase is where good techs earn their money and keep wasted time to a minimum. That one probably would have had me stumped for a while!

  • @Finom1
    @Finom1 Год назад +2

    Terry, Merry Christmas to you and your family.

  • @marshallohio5512
    @marshallohio5512 Год назад +1

    Freakn love the sense of humor !!!!

  • @Mrs.3617
    @Mrs.3617 Год назад +2

    I really like your shirt.I also really like the probe you made its a great idea especially for these old amps.

  • @blackimp4987
    @blackimp4987 Год назад

    I'd love to see the whole process until the end. I understand you show the analysis and method to discover issues but... a couple of minutes more with you soldering the wires and components would be more interesting

  • @electrolytics
    @electrolytics Год назад +1

    A Twinsted Web indeed. Merry Christmas To you and yours D-Lab!

  • @tomasjones3755
    @tomasjones3755 Год назад +1

    LOL Broken Arrow. That takes me back 40+ years. BTW - I enjoy your diagnostic approach.

  • @edwardhannigan6324
    @edwardhannigan6324 Год назад +5

    Great Video Terry..Thanks for sharing, always something new to learn..Take care and Happy Xmas to you and your family..ED..uk..😀

  • @Axman66
    @Axman66 Год назад +1

    +++an old german trubleshooting- rule says : *** the Devil is a Squirrel*** i hope that can be translated like that+++ thank you so much ,Master

  • @jmormino5465
    @jmormino5465 Год назад +3

    Love this basic training series !! Very helpful to see the thought process for finding faults in these amps. Thanks for these

  • @jerryshore8374
    @jerryshore8374 Год назад

    Merry Christmas Terry! Thanks for the entertainment.

  • @pauldow1648
    @pauldow1648 Год назад +1

    Nice find sherlock...

  • @richarddonahue2595
    @richarddonahue2595 Год назад +5

    Thank you D-Lab

  • @rustyrobinson8027
    @rustyrobinson8027 Год назад +3

    Thanks 👍

  • @peterday7077
    @peterday7077 Год назад +1

    Excellent Terry.

  • @Hipnote891
    @Hipnote891 Год назад +3

    Thank you so very much, for the time you take teaching someone like me!!!

  • @daved974
    @daved974 Год назад +1

    no- no go dlab were out here watchin were weird people who watched when you went to that swap meet thx
    its good bro happy honickerxman

  • @jutukka
    @jutukka Год назад +2

    Very nice video.
    And that's why as well the g1 contact of the tube socket must always be clean and tight. If it is dirty, oxidated or loose, causing negative bias voltage not being present at grid1, it causes the same unpleasant result to the totally innocent output tube as the broken wire did.

    • @edwhite7475
      @edwhite7475 Год назад

      Wow, thanks, so always clean and tighten the sockets,right?

  • @kimmassey6596
    @kimmassey6596 Год назад +1

    Great video. Thanks Terry

  • @scottbc31h22
    @scottbc31h22 Год назад +2

    I had a Leslie amp which had no continuity from the cathode resistor to ground. Visual inspection showed the solder connections of said wire were secure.
    It turned out that the ground wire was broken INSIDE the insulation.

  • @paulfordree5564
    @paulfordree5564 Год назад +1

    Merry Christmas Terry!
    Thank you for all the great content. See you in the new year…🎉🍷🍷

  • @user-gm5fq9rr3f
    @user-gm5fq9rr3f Год назад +1

    Merry christmas

  • @billbates7810
    @billbates7810 7 месяцев назад

    Nice catch, had me fooled!

  • @jtbracknell
    @jtbracknell Год назад +2

    What kind of mod was added with the pot in the input jack? Are you planning on putting back to stock in a future video so share with us? Thanks for all you do to make these videos Terry.

    • @d-labelectronics
      @d-labelectronics  Год назад +1

      Yep, already pulled that mod and reinstalled a 1/4" jack. Amp is close to test time

  • @therealjustincase
    @therealjustincase Год назад +1

    Mind-BOGLE’ing indeed! 😁

  • @YeatzeeGuitar
    @YeatzeeGuitar Год назад +2

    Enjoy this series a lot, keep it up!

  • @johnmac8084
    @johnmac8084 Год назад +1

    Thanks Terry, instructive and entertaining 😀

  • @oliverisailovic
    @oliverisailovic Год назад

    HAPPY NEW YEAR !!! 🍀🍀🍀

  • @nathkrupa3463
    @nathkrupa3463 Год назад +1

    Nice model sir

  • @davehunt5706
    @davehunt5706 Год назад

    Thanks so much for all the great training videos Terry
    Happy Christmas to you and and your family
    Dave in Ireland

  • @danielsaturnino5715
    @danielsaturnino5715 Год назад +1

    Its a 10! Because there's vino on the workdesk :)

  • @embreesmith7613
    @embreesmith7613 Год назад +1

    Fantastic !!! 🙂

  • @OIE82
    @OIE82 Год назад +1

    Good one!

  • @AdrenalineWings
    @AdrenalineWings Год назад +1

    wow so epic !! 🔥🔥

  • @jrbcrossrds5830
    @jrbcrossrds5830 Год назад +3

    Hey Terry, I have a clone blackface twin reverb. Made in the Philippines in the late 60's. The switches for reverb and tremolo we're hard wired to the chassis. No plugs. I was wondering if it was possible to put in toggle switches in the rear of the amp instead of floor switch plugs. Right now there are no switching functions.
    John

  • @dhelton40
    @dhelton40 Месяц назад

    Maybe the assembly person ringed the wire with their strippers back in the day, and it took 40 years to snap. I could see how this could happen, having worked in a factory panel shop doing point to point wiring.

  • @74cannelle
    @74cannelle Год назад +2

    Was the associated 470 screen resistor still ok ?

  • @weschilton
    @weschilton Год назад +1

    Nicely done!

  • @brucknerian9664
    @brucknerian9664 Год назад +2

    I can logically deduce that mouse had something to do with that poor connection, he was sniffing around very suspiciously.

  • @jimcatanzaro7808
    @jimcatanzaro7808 Год назад +1

    Also to keep in mind guys china and Russian tube pins are thinner on American sockets so the connection is poor that’s why I don’t use them and there junk anyways

  • @richarddonahue2595
    @richarddonahue2595 Год назад

    Nothing for the shoulder?

  • @robnamowicz8073
    @robnamowicz8073 Год назад

    "Never Trust a Rat Fink!"