How to Test an LED or Diode
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Can you build your own Electronic Stethoscope? Learn how to build and amplifier circuit
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Understanding and Testing Diodes
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How to measure a capacitor with an oscilloscope.
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LED Circuit Design - How to design LED circuits
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Desvendando os segredos da soldagem: poucas pessoas conhecem esse segredo do ferro de solda e do sal
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LEDs--Color, Voltage, Current, And More! (127)
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LED Resistor Calculation
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