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LUMEL ND20Lite Mains Analyzer, Multifunction Meter 3-Phase Network Parameter, 96 x 96 mm, Input x/1A, x/5A, Universal Voltage and Current Input 3x57.7/100V, 3x69.3/120V, 3x230/400V : Amazon.de: Business, Industry & Science
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How to choose the right power supply for your design; starting with accurate DC/DC converter measurements | Electronic Design
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