Posted: Wed May 07, 2008 9:16 pm-
You need a step-down transformer for the UK, not step-up, you're going from 240V to 110V. The frequency is important on motorized devices, a sewing machine might be a tad more complex than other electrical appliances. Remember it's 110V at 60Hz you're looking for as the output, the input is 240V at 50Hz. A lot of transformers don't change the frequency. If you plug a 110V motorized appliance into something running at 50Hz instead of 60Hz, it may well not run at the correct speed.
Bear in mind that Canadian outlets are actually 220V with a splitter on them, that's why they're nearly always dual outlets. You do get dual 240V outlets in the UK as well but they're separate feeds off the ring main. Never really been clear why the frequency is different though.
But it's pretty straightforward to wire a Canadian house for European 220V appliances if you know what you're doing, the other way around though is more complex but I'm sure any competent electrician could do it, if you don't mind making a mess of the wiring in your house. Not 100% sure it's legal though.
No idea who to get transformers from anymore, it used to be Tandy's (Radio Shack) but they've gone out of business in the UK now. Maplins maybe?
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Steve.