Hello, How can I use an electronic device that takes 240V AC in an area where the power supply is 127V AC? Clearly I need a step-up transformer, but the only ones I can find convert 110/120V to 220/240V. If I use one of these, will it convert 127V AC to 254V AC (twice 127V)? If so, would it be safe for my electronic equipment for me to use it with this voltage (14V more than it is supposed to take)? Thanks.