Here are some
resistor color codes:
The first and second band specifies the first two digits. Their codes are as follows:
Black 0
Brown 1
Red 2
Orange 3
Yellow 4
Green 5
Blue 6
Violet 7
Gray 8
White 9
The third band is a
multiplier for the first two bands to find the final
number of
ohms:
Black * 1
Brown * 10
Red * 100
Orange * 1k
Yellow * 10k
Green * 100k
Blue * 1m
Silver / 100
Gold / 10
The final band(4th) represents the
tolerance or
accuracy of this
measurement:
Gold 5%
Silver 10%
None 20%
Example:
Yellow -
Violet -
Orange -
Gold
is 4.7k ohms with 5% accuracy. (4 - 7 - *1k - 5%)