John, I expect you know this, but the transformer you need for your 230 v,50Hz won¡¯t be a ¡°replacement¡± ?of the
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original [oops? I meant the original US transformer]? ; it will need more iron for the 50hz, ??and then the primary will need twice the turns to get to 230v
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There is good reason to believe that most halli¡¯s were sold? in England ?and ?likely with the proper??? transformer for the area.? See this and other issues of