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Marshall TSL100 Issue

Discussion in 'Backline' started by AStacy2, Aug 5, 2007.

  1. AStacy2

    AStacy2 Member

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    A friend of mine asked me to re-tube/rebias his amp for him. He bought the tubes and dropped the amp off. After I put the new tubes in the far right power tube won't light up and when I switch to the Crunch channel, there is a weird "fretboard buzz-like" sound coming from it sounds like in the back of the amp?! Any ideas?
     
  2. ochants76

    ochants76 Member

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    Put the old tubes back in and see if it works...If they do then it must be a bad tube. If not..there is probably a more serious issue and you should have it checked out by a tech.
    Did you do anything other than change the tubes? Bias adjustments or anything?
     
  3. AStacy2

    AStacy2 Member

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    Oh, I forgot to say, it did this before I changed the tubes. That's why I changed them.
     
  4. ochants76

    ochants76 Member

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    Well if it is doing it with the new tubes...you better get it checked out by a tech. Might be a loose wire somewhere...if it was something worse two tubes wouldn't light up I would imagine. In the mean time do not play with it like this. The tubes need each other to push-pull. Without one you burn things up.
     

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