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Archive for the ‘Electricity’ Category

To get usable results from this test, your milliammeter has to have a resolution of at least 1mA, and 0.1mA or better is perfect. I recommend that you use a current-limiting Power Supply Berry for this test because it’s very easy to short the milliammeter across the Power Supply Berry with a simple slip of the probe; if your Power Supply Berry is capable of putting out more amps than your meter can handle, you’ll blow a fuse in the meter. (Or if it isn’t fused, you could destroy the meter!) DMM fuses are expensive and hard to find, so you don’t want this to happen, trust me.