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USB LED Tester Box

USB LED Tester Box

thingiverse

USB LED Tester Box I used an old USB phone charger cable wired to 2x8 2.54mm DIL socket and resistors to test LEDs with different currents. 1,2,3,6,10,20,30,60 mA currents can be tested. Resistor Values: 5V USB for red LED (2V drop) 1mA 3K 2mA 1K5 3mA 1K 6mA 500 10mA 150 20mA 100 60mA 50

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