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Hi, I have a balanced power unit with a toroidal transformer. It was used overseas by a friend to step down the local 240v power to 120v so he can use US electronics in Asia. he had since given the unit to me and I wonder if there is a way to rewire the transformer so that it does not step down the power so I can use it in the US. the input leads on the transformer are black, red and orange. Currently, only black and red are used. Orange is unconnected. the output is blue, red and yellow, with yellow tied to ground i know it's not much to go on, but any thoughts? Since it's a balanced unit, if I used it as is with 240v input, the output is +60 and -60v. Given the location of my system, it would be very costly for me to add a 240v outlet in that location. thanks! hammer