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The circuit board, but the shape of the resistance but the cylinder is the resistance of the thing you do, and what is the difference in resistance?: Like a resistor but is a cylindrical shape of the color ring inductance (with color ring), or diode (usually black and red), color ring inductance is relatively rare, shape is a regular cylinder, the resistance is small;; Grade tube has a conductive conductivity characteristics; their differences in appearance in addition to differences, the most important role is different;
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The circuit board, but the shape of the resistance but the cylinder is the resistance of the thing you do, and what is the difference in resistance?