Heathkit*
PARTS
Resistors are identified in Parts Lists and steps by
their resistance value in ft (ohms), kft (kilohms), or
Mft (megohms). They are usually identified by a color
code and four or five color bands, where each color
represents a number. These colors (except for the last
band, which indicates a resistor’s “tolerance”) will be
given in the steps in their proper order. Therefore, the
following color code is given for information only.
NOTE: Occasionally, a “precision” or “power” resis
tor may have the value stamped on it.
1/4-WATT
1/2-WATT
1-WATT
—=G=D=—
Multiplier
BANDS: 12
3^
Tolerance
Band 1
1st Digit
Color
Digit
Black
0
Brown
1
Red
2
Orange
3
Yellow
4
Green
5
Blue
6
Violet
7
Gray
8
White
9
Band 2
2nd Digit
Color
Digit
Black
0
Brown
1
Red
2
Orange
3
Yellow
4
Green
5
Blue
6
Violet
7
Gray
8
White
9
Band 3 (if used)
3rd Digit
Color
Digit
Black
0
Brown
1
Red
2
Orange
3
Yellow
4
Green
5
Blue
6
Violet
7
Gray
8
White
9
Multiplier
Color
Multiplier
Black
1
Brown
10
Red
100
Orange
1,000
Yellow
10,000
Green
100,000
Blue
1,000,000
Silver
0.01
Gold
0.1
Resistance
Tolerance
Color
Tolerance
Silver
±10%
Gold
± 5%
Brown
± 1%
Capacitors will be called out by their capacitance
value in /xF (microfarads) or pF (picofarads) and type:
ceramic, Mylar*, electrolytic, etc. Some capacitors
may have their value printed in the following man
ner:
EXAMPLES:
151K = 15 x 10 = 150 pF
759 = 75 X0.1 = 7.5 pF
First digit of
capacitor's value: 1 ■
Second digit of
capacitor’s value: 5 -
Multiplier: Multiply the
first & second digits by
the proper value from the
Multiplier Chart.
To find the tolerance of
the capacitor, look up
this letter in the Tolerance
NOTE: The letter “R” may be used at times to signify a
decimal point: as in: 2R2 = 2.2 (pF or /xF).
columns.
DuPont Registered Trademark
MULTIPLIER
TOLERANCE OF CAPACITOR
FOR THE
NUMBER:
MULTIPLY
BY:
10 pF OR
LESS
LETTER
OVER
10 pF
0
1
±0.1 pF
B
1
10
±0.25 pF
C
2
100
±0.5 pF
D
3
1000
±1.0 pF
F
±1%
4
10,000
±2.0 pF
G
±2%
5
100,000
H
±3%
J
±5%
8
0.01
K
±10%
9
0.1
M
±20%
