I recently acquired the original Zana Deux from a fellow head-fier. It's currently rated at 120V but I'd like to step it down to 100V for Japan. I asked Craig for assistance and he's advised on changing something that doesn't look obvious to me (mainly colour cable differences) and thought I'd ask to see if anyone here with transformer knowledge would able to assist in helping me understand what Craig is saying :-
Craig responded with the following. Unfortunately I'm not able to find brown wires (and by blue, presumably he meant purple/violet) :-
for 120V the two black wires will be tied together and go to one side of the line, the two blue wires are tied together and go to the other side of the line. For 100V replace the two blue wires with the two brown wires tied together. Make sure the blue wires are no longer connected to each other, or anything else.
I further took these pictures to see if I'm understanding Craig