Resistor Color Codes

Color 1st Band 2nd Band Multiplier Tolerance
Black Zero Zero 1 Ohm
Brown One One 10 Ohms ± 1%
Red Two Two 100 Ohms ± 2%
Orange Three Three 1k Ohm
Yellow Four Four 10k Ohm
Green Five Five 100k Ohm ± 0.5%
Blue Six Six 1 Meg Ohm ± 0.25%
Violet Seven Seven 10 Meg Ohm ± 0.1%
Grey Eight Eight ± 0.05%
White Nine Nine
Gold 0.1 ± 5%
Silver 0.01 ± 10%

Old Style "Dog Bone" Resistors

Old Style Atwater Kent Resistors

Atwater Kent used resistors with their own color code.

Sprague Capacitors -
Including "Bumblebee" and "Black Beauties"



Molded Mica Capacitor Codes



Color 1st Figure 2nd Figure # of Zeros after
2nd Figure		 Voltage Rating Tolerance
Black Zero Zero None
Brown One One One 100V 1%
Red Two Two Two 200V 2%
Orange Three Three Three 300V 3%
Yellow Four Four Four 400V 4%
Green Five Five Five 500V 5%
Blue Six Six Six 600V 6%
Violet Seven Seven Seven 700V 7%
Grey Eight Eight Eight 800V 8%
White Nine Nine Nine 900V 9%
Gold 1000V
Silver 10%
No Color 500V 20%

High Voltage Capacitor Markings

Code: The third digit is a multiplier. Add that many zeros after the first two digits to get the capacitance in pF

uF nF pF Code
0.001 1 1000 102K
0.0015 1.5 1500 152K
0.002 2 2000 202K
0.003 3 3000 302K
0.004 4 4000 402K
0.005 5 5000 502K
0.006 6 6000 602K
0.008 8 8000 802K
0.01 10 10000 103K
0.015 15 15000 153K
0.02 20 20000 203K
0.022 22 22000 223K
0.03 30 30000 303K
0.047 47 47000 473K
0.05 50 50000 503K
0.1 100 100000 104K
0.2 200 200000 204K
0.33 330 330000 334K
0.47 470 470000 474K
0.5 500 500000 504K