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power supply for guitar effects

Discussion in 'Electronic Basics' started by bmw, Oct 29, 2003.

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  1. bmw

    bmw Guest

    the ingredients are:

    [guitar ]
    +
    1-dunlop crybaby
    2-MKS power cable(connects from pedalpad to 2.1mm jack on dunlop)
    3-sobbat fuzz breaker
    4-ADL juice box-004 power cable (connects from pedalpad to 9v clip on
    sobbat)
    5-pedalpad rm-10(power supply for multiple effects pedals)
    +
    [guitar amp]

    HERE's the problem:

    with both pedals connected in series through pedalpad(and powered by
    pedalpad)
    NO SOUND when sobbat fuzz is engaged (sound travels through when
    sobbat fuzz is not engaged)

    here are some different setups i've tried and how they worked
    1-wah(powered w/pedalpad + sobbat fuzz(powered
    w/battery)............sound
    2-sobbat fuzz(powered w/battery) + wah(powered w/
    pedalpad)............sound
    3-sobbat fuzz alone(powered by pedalpad).........sound
    4-wah alone(powered by pedalpad)..........sound
    5-wah + ts9(powered by pedalpad with same cord as w/sobbat
    fuzz)......sound


    how can this happen??
    i'm stumped, any info would be greatly appreciated
    thanks
    bryan
     
  2. Baphomet

    Baphomet Guest

    If you could post a schematic(s) to alt.binaries.schematics.electronic or to
    a website, it would be helpful. Trying to analyze your problem with words
    alone is, at least for me, really difficult. Think pictures ;-)
     
  3. bmw

    bmw Guest

    I figured it out finally; the polarity is reversed on the fuzz
    pedal(older japanese model), so a little cable splicing and i'm back
    in business........

    thanks for the tip, though. I'm figuring out how to read schematics by
    trying to draw them. It is definitely easier to explain in pictures
    than in words.

    bryan
     
  4. Baphomet

    Baphomet Guest

    Bryan - Glad you figured out the problem. One of the reasons (my own
    stupidity notwithstanding) that I suggested posting some kind of schematic
    is that outside of a few musicians and perhaps some audio techno-geeks,
    nobody here, regardless of their expertise, would be able to figure out what
    you were talking about. With a schematic (and electronics being
    electronics), almost anyone here, regardless of their particular field of
    expertise, would have a much greater shot at helping out. Best of luck.
     
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