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Electronics Resources

Javascript Resistance Value and Tolerance Calculator

Resistor Colour Code for 4 Band Resisitor

Colour

Band 1

Band 2

Multiplier

Tolerance

Black

0

0

1

-

Brown

1

1

10

1%

Red

2

2

100

2%

Orange

3

3

1,000

-

Yellow

4

4

10,000

-

Green

5

5

100,000

-

Blue

6

6

1,000,000

-

Violet

7

7

-

-

Grey

8

8

-

-

White

9

9

-

-

Gold

-

-

-

5%

Silver

-

-

-

10%

None

-

-

-

20%