I was surprised at how much of our electronic stuff was dual 120/240 rated when we were packing up to go to New Zealand. It was pretty much everything. I did have one wall wart that was 120 only (transformer type) but I dug around in my box of warts and came up with a switcher that had the same 5mm plug on the end. It was dual rated.
All we really needed was a plug adapter for the 5-15 so it would plug into the NZ crow foot. I mated that with a cube tap and we were good.
