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I have just bought an AC/DC adaptor from Jaycar, Catalogue no GH-1379, at a cost of $29.95. The output is DC and rated at 12v, 5 amps, and when I put a voltmeter across it unloaded, it was 12.3 to 12.4 volts. In their catalogue, they also have another item, Cat no MP-3242, which is also 12v DC and 5 amp, but costs $59.95, and you have to supply your own power lead at another $8.95. The guy in the shop couldn't explain what the difference was, except for being twice as expensive. Any ideas or comments anyone?
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