Mesa Tube Gurus. Please Help

Discussion in 'Amps and Cabs [BG]' started by stevekim, Mar 3, 2003.

  1. stevekim


    Feb 11, 2000
    los angeles, ca
    I'm wondering if there is any way to mod a D180 to use 6550 instead of the 6l6's it currently uses. I thought I read somewhere that the older 400's came with 6550's.

    I love my D180 but sometime I wish I had just a little more headroom.
  2. BillyB_from_LZ

    BillyB_from_LZ Supporting Member

    Sep 7, 2000
    Steve, you ought to call Mesa and ask them....

    If it would work, you'll have to adjust the bias network...I don't believe that Mesa's come with a potentiomenter to do this...