On 9 May 2008 Ed Gould wrote: > I am *NOT* an expert in this area... but I think the main issue is 50 > vs 60 cycles. The 110 and 220 is easily done (like you said) a flip > of a switch (provided there is on). > > Ed Frequency is not a problem with any computer (that I'm aware of). All of Apple's specs show 50-60 cycles. In any event, every converter I've ever seen for international travel converts voltage and adapts prongs only. The converters, be they transformers or solid state, just convert the voltage. Frequency isn't an issue today with any electronic gear (of course, AFAIK). Jon