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Bassman 135 is blowing fuses...

Discussion in 'Amps and Cabs [BG]' started by Rockbobmel, Jul 13, 2003.


  1. Rockbobmel

    Rockbobmel Supporting Member

    It gets hot after a short time and blows the fuse. Both 4 and 8 ohm loads.
    ....I am intending to take it to a new local guy that came highly recommended.....But before I do, I would like some up front knowledge... Thanks, Bob
     
  2. is this an amp or a combo amp?
     
  3. JMX

    JMX Vorsprung durch Technik

    Sep 4, 2000
    Cologne, Germany
    Maybe bad poweramp tubes? I think that may cause the fuse to blow, at least in Marshall amps.
     
  4. Rockbobmel

    Rockbobmel Supporting Member

    It's a head.
     
  5. If it's getting too hot, your bias circuit or the output tubes have drifted in current draw; might be also be a problem with the balance control. Could be as simple as a single bad output tube or loose socket. Shouldn't be too difficult if the amp's not doing anything else funny.
     
  6. Rockbobmel

    Rockbobmel Supporting Member

    I took it to the tech that re-capped my V-4 and he ran it for a while. He couldn't really find anything wrong so he put an adj bias and new JJs. It sounds awsome. I won't know till Thursday's practice.