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tweeter problems/ microphonic tube?

Discussion in 'Amps and Cabs [BG]' started by Scott Lynch, Feb 3, 2005.

  1. Scott Lynch

    Scott Lynch Supporting Member

    The tweeter in one of my aggie 112's started acting up last night (not to mention the tweeter in the other cab doesnt work altogether). Anyway, after about 5 mins of playing I start to get a high pitched kind of ringing sound through the tweeter. I just replaced the tube in my bass 350 a couple of weeks ago. Could I have gotten a dud or a bad tube? I really need your guys help on this since I have gigs on friday, saturday and next wednesday.
  2. Finger Blister

    Finger Blister

    Jul 8, 2003
    Yes. You could of gotten a dud.
  3. rpatter

    rpatter Supporting Member

    Sep 18, 2004
    Round Rock, TX
    How close were you to the cabinet? I have blown tweeter fuses on my cabs a couple of times just by standing in front of the amp to adjust it while I had the volume up on my bass (but not playing). In my case, it is the pickups being microphonic and creating feedback.

  4. Scott Lynch

    Scott Lynch Supporting Member

    it was my tube. I went in and switched the tube back out to the previous one i had in there, and voila, no more annoying sound.
  5. Finger Blister

    Finger Blister

    Jul 8, 2003