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Teardown Amazon Dash Button keeps you connected

Teardown: Amazon Dash Button keeps you connected

Amazon’s Dash Button, which I previously mentioned back in late May 2015, is the ultimate in consumer convenience (or, if you prefer, consumerism gone crazy). Simply press a button on the inconspicuous adhesive-backed device (perfect for attaching to your washer and dryer, refrigerator, counter, or cabinet), and your Amazon account is charged for the purchase […]

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Easily measure diode capacitance and reverse recovery

Easily measure diode capacitance and reverse recovery

The other day Linda from Purchasing came to me with a problem: Lou from Operations needed to source a replacement for a shorted diode on a switching power supply. The darned thing was marked with a strange part number that no amount of Googling could decipher. There was a recognizable logo marking, but that manufacturer

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