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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Changing 120v AC to 240V
Bought a bit of audio gear from the US at a decent price even allowing for
carriage. Guessed it might be 110v - but it is actually marked 120v 60Hz. Looking inside, it has an analogue power supply - I was rather expecting an SMPS. The transformer primary has two winding wired in parallel which seem to be coil 1 black start brown end, coil 2 red start orange end. Red and black are paralleled as are brown and orange. Red/Black goes to neutral, brown/orange to the off/on switch. So it looks like I may be lucky and simply altering them to series will do it for 240v. Link brown and red and 240 goes between black to orange? Does it matter if one winding has the connections reversed when they are in series? -- *Husband and cat lost -- reward for cat Dave Plowman London SW To e-mail, change noise into sound. |
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