# Resistor color codes - Vintage Fender Amp Repair ## Resistor color codes

1st band/digit 2nd band/digit 3rd band/multiplier

4th band/tolerance %

Each colored band on the resistor corespondes to a number

For the 1st digit, just write (read) the number that corresponds to that color

Same for the 2nd digit

The 3rd band is the multiplier, which tells you how many zeroes to add after the first two digits

(ie if the 3rd band is yellow, which equals 4, simply add four zeroes after the first two digits)

The 4th band represents the tolerance, or how accurate the resistor is expected to be

(ie a 100K resistor with a 10% tolerance should read anywhere from 90K - 110K

this band will almost always be gold or silver)

For example: your resistor reads yellow / violet / brown /silver. Using the chart, you write down

4 / 7 / 0 (remember this 3rd band is the multiplier, or number of zeroes you add!!) / 10%.

This resistor reads 470 ohms at 10% tolerance.

Another example: brown / black / yellow / gold = 1 / 0 / 0000 / 5%

This reads 100,000 ohms at 5%, or 100K ohms

Note: letters are often used in place of decimals. This is quicker to write & saves space.

For example: brown / green / red = 1 / 5 / 00 = 1500 = 1.5K = 1K5

0 = Black

1 = Brown

2 = Red

3 = Orange

4 = Yellow

5 = Green

6 = Blue

7 = Violet

8 = Grey

9 = White

5% tolerance = Gold

10% tolerance = Silver

Codes for resistors common in Fender amps:

470 Ω = yellow / violet / brown

820 Ω = grey / red / brown

1K = brown / black / red

1K5 = brown / green / red

2K2 = red / red / red

4K7 = yellow / violet / red

10K = brown / black / orange

15K = brown / green / orange

22K = red / red / orange

27K = red / violet / orange

56K = green / blue / orange

82K = grey / red / orange

100K = brown / black / yellow

220K = red / red / yellow

470K = yellow / violet / yellow

1M = brown / black / green

2M2 = red / red / green

3M3 = orange / orange / green