A very simple a b y switch box schematic this is similar to the morley aby another simple a b y switch box schematic also similar to the morley aby but offers a 3rd led so that you can tell which channel you will be on when you switch out of a and b mode. Aby guitar box this tutorial was also posted in my blog check it out for more diy projectsthis is a a b y box it acts as a switch you can plug in a guitar and have its output go into two amplifiers you can choose between the amplifiers or use both at once. Morley diagrams schematics and service manuals download for free including morley 747ms schematic circuit electronic wiring diagram morley abc box schematic diagram morley aby switchbox selector schematic morley attack control volume acv circuit diagram morley auto wah pwa amp schematic diagram morley bcv st chorus volume schematic morley bfw fuzz wah schematic morley bpa 2550 big . Heres the wiring diagram i used for the switches the buffer is wired in series with the input jack so that means to say the buffer input wire comes from the guitar input jsck tip and the out put of the buffer pcb goes to the top left hand lug of the left hand 3pdt switch a b switch i hope this makes sense. Another breja toneworks diy video this time well go over building your own a b y pedal with a ground lift this will give you the ability to choose channel a or b or both combined
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