Always
read resistors from left to right. -
Resistors never start with a metallic band on the left. If you have a
resistor with a gold or silver band on one end, you have a 5% or 10% tolerance
resistor. Position the
resistor with this band on the right side and again
read your
resistor from left to right.
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In the standard four band resistors, the first two bands indicate the two most-significant digits of the resistor's value. The third band is a weight value, which multiplies the two significant digits by a power of ten. The final band indicates the tolerance of the resistor.
