Pedal Hum?

Discussion in 'Miscellaneous [BG]' started by that one guy, Mar 27, 2003.

  1. Does anybody have an idea of why I get a hum when I swith on my MXR Phase 90? I'm using the correct AC Power Supply for it. Any help is appreciated.
  2. Petebass


    Dec 22, 2002
    QLD Australia
    It's probably one of your leads.

    Are you using any other pedals? Hum is often caused by having multiple pedals sharing one power supply.
  3. brianrost

    brianrost Gold Supporting Member

    Apr 26, 2000
    Boston, Taxachusetts
    If the hum goes away when you use a bettery, it's the supply...even if it is the "correct" one.