THIRTY-FIVE
CENTS
/Allied
electronics data
handbook
FORMULAS AND DATA
MOST COMMONLY USED
IN ELECTRONICS
ALLIED RADIO CORPORATION
100 N. WESTERN AVE.,
CHICAGO 80, ILL.
Allied's
Electronics Data Handbook
A Compilation of Formulas and Data Most Com
monly Used in the Field of Radio and Electronics
Written and Compiled by the
Publications Division
ALLIED RADIO CORPORATION
Under the Direction of
EUGENE CARRINGTON
Edited by
NELSON M. COOKE,
Lieutenant Commander, United States Navy (Ret.)
Senior Member, Institute of Radio Engineers. Author, "Basic Mathematics for Electronics.
THIRD EDITION
2nd Printing, May, 1962
Published by
ALLIED RADIO CORPORATION
100 North Western Avenue
Chicago 80, 111., U. S. A.
Printed in U.S.A. Copyright 1962 by Allied Radio Corp.
FOREWORD
Allied Radio Corporation has long recognized the need for a compre
hensive and condensed handbook of formulas and data most com
monly used in the field of radio and electronics. It was felt also that
such a book should serve entirely as a convenient source of informa
tion and reference and that all attempts to teach or explain the basic
principles involved should be left to classroom instruction and to the
many already existing publications written for this distinct purpose.
The Electronics Data Handbook, therefore, consists of formulas,
tables, charts and data. Every effort has been made to present this
information clearly and to arrange it in a convenient manner for
instant reference. All material was carefully selected and prepared
by Allied's technical staff to serve the requirements of many specific
groups in the radio and electronics field. It is hoped that our objec
tives have been successfully attained and that this Handbook will
serve as: (1) A valuable adjunct to classroom study and laboratory
work for the student and instructor; (2) A dependable source of
information for the beginner, experimenter and set builder; (3) A
reliable guide for the service engineer and maintenance man in his
everyday work; (4) A time-saving and practical reference for the
radio amateur, technician and engineer, both in the laboratory and
in the field of operations.
The publishers are indebted to the McGraw-Hill Book Company, Inc.,
for their permission to use material selected from "Basic Mathe
matics for Electronics" by Nelson M. Cooke. Allied also takes this
opportunity to thank those manufacturers who so generously per
mitted our use of current data prepared by their engineering per
sonnel. Special recognition and our sincere appreciation are extended
to Commander Cooke for his helpful suggestions and generous con
tribution of his time and specialized knowledge in editing the
material contained in this book.
ALLIED RADIO CORPORATION
TABLE OF CONTENTS
Fundamental Mathematical Data
4-5
Mathematical Constants
4
Mathematical Symbols
4
Decimal Parts of an Inch
4
Fundamental Algebraic Formulas
5
Decibel Tables, Attenuators and Matching Pads
Decibels, Fundamental Formulas
DB Expressed in Watts and Volts
Decibel-Voltage, Current and Power Ratio Table
5-10
5
5
6
Table of Values for Attenuator Network Formulas
Attenuator Network Formulas
7
8-9
Minimum Loss Pads
10
Most Used Radio and Electronic Formulas
11-29
70-Volt Loud-Speaker Matching Formulas
11
Resistance
12
Capacitance
12
Inductance
Reactance
Resonance
12-13
13
13
Frequency and Wavelength
"Q" Factor
Impedance
13
14
14-16
Conductance
17
Susceptance
17
Admittance
Transient I and E in LCR Circuits
17
18-19
Steady State Current Flow
19
Transmission Line Formulas
20
Capacity of a Vertical Antenna
Trigonometric Relationships
20
21
Vacuum Tube Formulas and Symbols
22
R.M.S., Peak and Average Volts and Current
22
Transistors—Basic Formulas, Symbols and Circuits
. . . . 23-25
D-C Meter Formulas
Ohm's Law for A-C and D-C Circuits
Engineering and Servicing Data
R-F Coil Winding Formulas
Wire Table
26-27
28-29
30-69
30
31
R-F Coil Winding Data Chart
Inductance, Capacitance, Reactance Charts
Metric Relationships
How to Use Logarithms
Directly Interchangeable Tubes
Directly Interchangeable TV Picture Tubes
32-33
33-36
37
38-40
41-51
52-55
Abbreviations and Letter Symbols
55,67
Pilot Lamp Data
Interchangeable Batteries
56-57
58-59
EIA and Military Color Codes for Resistors and Capacitors
60-63
EIA Color Codes for Chassis Wiring
Schematic Symbols Used in Radio Diagrams
64-66
68-69
Log and Trig Tables
Four-Place Common Log Tables
Table of Natural Sines, Cosines and Tangents
Allied Publications
Index
70-77
70-71
72-77
78-79
80
A
L L I E D
'
S
ELECTRONICS
DATA
Mathematical Symbols
Decimal Inches
X or • Multiplied by
-T- or : Divided by
Inches X
+
Inches X
2.540
Positive. Plus. Add
103
Inches
1/64
I
3/64
1
1/32
|
1/16
5/64
|
1/8
5/32
3/16
13/64
Is much less than
15/64
^
^
Greater than or equal to
Less than or equal to
I
I
7/32
1
1/4
17/64
1
19/64
I
5/16
11/32
A
Increment or Decrement
-JII
Inl
Perpendicular to
Parallel to
Absolute value of n
I
3/8
25/64
13/32
27/64
1
7/16
29/64
I
1/2
VV-1.77
33/64
I
35/64
I
|
17/32
9/16
37/64
I
39/64
I
19/32
2tt = 6.28
|=1.25
(2tt)2 - 39.5
5/8
41/64
21/32
4tt = 12.6
V2= 1.41
r- = 9.87
Vs = 1.73
43/64
1
11/16
45/64
1
47/64
1
|
23/32
3/4
\ =w
-
-
0.318
•K
=
0.101
49/64
1
51/64
I
V2
1
log 7T = 0.497
log ^=0.196
53/64
55/64
log 7T2 = 0.994
log vV = 0.248
I
|
27/32
I
7/8
57/64
|
|
59/64 |
61/64
—7= = 0.564
[ 25/32
13/16
- 0.577
V3
—- = 0.15'.)
2tt
—
- = = 0.707
63/64
0.397
I
0.794
.0469
I
1.191
.0625
I
1.588
|
2.778
1.985
2.381
.1250 |
3.175
.1406
.1563
3.572
3.969
1
[
|
15/16
31/32
1.0
|
4.366
4.762
.2031
1
5.159
.2188
1
5.556
.2344
I
5.953
.2500
|
6.350
1
6.747
.2813 1
7.144
.2969
1
7.541
.3125
|
7.937
1
8.334
.3438 1
8.731
.3594
I
9.128
.3750
|
9.525
9.922
.3906
|
.4063
| 10.319
.4219
|
10.716
.4375 1 11.112
.4531
1
11.509
.4844
1
12.303
.5000
| 12.700
I 11.906
.5156
I
.5313
| 13.494
.5469
I
.5625
| 14.287
13.097
13.891
.5781
|
14.684
.5938
.6094
|
;
15.081
15.478
.6250
.6406
|
|
15.875
16.272
.6563
I 16.669
.6719
I
.6875
| 17.463
17.067
.7031
1
.7188
I 18.238
.7344
I
.7500
| 19.049
17.860
18.635
.7656
l
19.446
.7813
.7969
.8125
.8281
[
|
I
|
19.842
20.239
20.636
21.033
.8438
I
21.430
.8594
|
21.827
.8750 1 22.224
.8906
29/32
|
.1875
.4688
15/32
31/64 |
Mathematical Constants
1
.0313
.3281
21/64
23/64
.0156
.2656
9/32
Therefore
Angle
Millimeter
Equivalent
.1719
11/64
Is less than
Decimal
Equivalent
.1094
9/64
<
= Mils
.0781
.0938
3/32
7/64
«
7T = 3.14
= Centimeters
Inches X 1.578 X 10 5 = Miles
—
Negative. Minus. Subtract
+
Positive or negative. Plus or minus
+
Negative or positive. Minus or plus
= or :: Equals
==
Identity
=
Is approximately equal to
5^
Does not equal
>
Is greater than
»
Is much greater than
Z
HANDBOOK
1
22.621
.9063
I
23.018
.9219
.9375
| 23.415
1 23.812
.9531
I
.9688
I 24.606
-9844
I 25.004
I 1.0000
24.209
1 25.400
ALLIED'S
ELECTRONICS
Algebra
Decibels
The number of db by which two power
Exponents and Radicals
a- - «(*-">.
ax Xav = a(x+ ").
a"
ay _ a*
(aft)1 = 0*6* .
outputs Pi and P2 (in watts) may differ, is
expressed by
p
10 log-pi;
or in terms of volts,
b) " &*'
I- - ^a
V b ~ #b'
HANDBOOK
DATA
20 log || ;
-•*
or in current,
20log y
(a1)" = axy.
It
y/ab = \/a vo .
a? = ^ ;
1
a* = J/Ti.
a" =
While power ratios are independent of
source and load impedance values, voltage
and current ratios in these formulas hold
true only when the source and load im
pedances Zi and Zi are equal. In circuits
where these impedances differ, voltage and
1.
current ratios are expressed by,
Solution of a Quadratic
Quadratic equations in the form
db = 20 log
ax7 + bx + c = 0
EiVzt
EffZi
or,
201og^f
itvz2
may be solved by the following:
- b±Vb' - 4ac
x
DB Expressed in Watts & Volts
=
2a
Above Z ero Level
Below Zero Level
DB*
Watts
Transposition of Terms
If A=- . then B- AC, C=|
0
0.0010
1
0.0013
0.0016
0.0020
0.0025
2
3
4
5
8
9
13
0.0100
0.0126
0.0159
0.0200
14
0.0251
15
0.0316
16
17
0.0398
0.0501
0.0631
0.0794
10
11
12
If A = —7= . then
A2 =
18
,
0.0032
0.0040
0.0050
0.0063
0.0079
19
0.1
1.0
1
£ =tJt^.
C7 =^A^.
D= aV.bc
D2yl2£
DM'C
40
50
60
70
80
90
100
If A = VF+F, then A2 = B2 + C2,
B = Va2 - C2,
C = VA1 - B2.
10.0
10*
10s
10*
10»
10"
10'
Volts
0.775
0.869
0.975
Watts
Volts
1.00x10-'
0.7746
7.94x10"*
1.094
6.31 x10"*
5.01 x 10"*
1.227
3.98x10"*
0.6904
0.6153 "
0.5483
0.4888
1.377
3.16 x 10"*
2.51 x 10"*
2.00x10"*
1.59x10"*
1.26x10"*
0.4356
0.3883
0.3460
0.3084
0.2748
1.545
1.734
1.946
2.183
2.449
2.748
3.084
1.00 x 10"*
7.94 x 10"'
6.31 x 10"'
3.460
3.882
5.01 x 10"*
3.98x10"'
4.356
4.888
3.16 x10-5
5.483
6.153
6.904
7.746
24.493
77.460
2.51 x 10"'
2.00 x 10"'
1.59x10"'
1.26x10"'
10-'
10-6
0.2449
0.2183
0.1946
0.1734
0.1545
0.1377
0.1228
0.1095
0.0975
0.0869
7.75x10"=
2.45x10"=
244.93
10-"
7.75x10 •
2.45 x t0"'
774.60
10"»
7.75x10 *
2,449.0
10-'°
7,746.0
10-"
10 l:
10-"
2.45x10"*
7.75x10-'
2.45 x 10 '
7.75 x 10 »
24,493.0
77,460.0
10"'
1 milliwatt into a 600 ohm load,
*Zero db
Power rati os hold for any impedance, but voltbe
referred to an impedance load of
ages must
600 ohms.
ALLIEP'S
ELECTRONICS
DATA
HANDB O O K
Decibel—Voltage, Current and Power Ratio Table
+
—
Voltage
or
Power
Current
Ratio
DB
Voltage
Voltage
or
Power
or
Power
Current
Ratio
Current
Ratio
Ratio
Ratio
1.000(1
+
—
DB
Voltage
or
Current
Ratio
Power
Ratio
Ratio
.i
.2
1.000
1.012
1.023
1.000
1.023
.4898
.4842
1.047
.4786
.3
1.035
.4732
.4677
.2239
.4624
.4571
.4519
.4467
.4416
.2138
.4365
.1905
.1862
.9550
1.0000
.9772
.9550
.9333
.9120
.4
1.047
1.072
1.096
.9441
.8913
.5
1.059
1.122
.9333
.8710
.8511
.6
.7
.8
.9
1.072
1.084
1.096
1.109
1.148
1.122
1.135
1.259
1.288
1.148
1.318
.4315
.4266
.8610
.7586
.7413
1.0
1.1
1.2
1.3
1.161
1.349
.4217
.1820
.1778
7.5
2.317
2.344
2.371
.8511
.7244
1.4
1.175
1.380
.4169
.1738
7.6
2.399
5.754
1.413
1.445
1.479
.4121
.1698
5.888
1.514
.3981
.1660
.1622
.1585
1.549
.3936
.1549
7.7
7.8
7.9
8.0
8.1
2.427
.4074
1.9
1.189
1.202
1.216
1.230
1.245
2.0
1.259
1.585
.3890
.1514
8.2
2.1
1.274
1.622
.3846
1.288
1.660
.3802
.1479
.1445
8.3
2.2
2.3
1.303
1.318
1.698
.3758
.1413
8.5
1.738
.3715
.1380
8.6
2.5
2.6
2.7
2.8
2.9
1.334
1.349
1.365
1.778
1.820
1.862
1.380
1.905
1.396
1.950
1.413
1.995
1.429
1.445
1.462
1.479
2.042
1.496
1.514
1.531
1.549
1.567
.9886
.9772
.9661
.9226
.9120
.9016
.8318
.8128
.8913
.7943
.8810
.8710
.7762
0
.8414
.7079
1.5
.8318
.8222
.8128
.8035
.6918
.6761
.6607
.6457
1.6
.7943
.7586
.6310
.6166
.6026
.5888
.5754
.7499
.7413
.5623
.5495
.7328
.5370
.7244
.5248
.7161
.5129
.7079
.6998
.6918
.6839
.5012
.4898
.4786
.4677
.4571
3.0
3.1
3.2
.4467
.4365
.4266
3.5
3.6
.7852
.7762
.7674
.6761
.6683
.6607
.6531
.6457
.6383
.4169
.4074
1.7
1.8
2.4
3.3
3.4
.1950
4.266
4.365
2.113
2.138
4.467
4.571
6.7
6.8
6.9
7.0
7.1
2.163
4.677
4.786
4.898
5.012
7.2
7.3
7.4
2.291
8.4
.3673
.3631
.1349
8.7
.1318
8.8
.3589
.3548
.3508
.1288
.1259
.1230
8.9
9.0
9.1
2.188
.3467
.3428
.3388
.3350
.3311
.1202
.1175
.1148
.1122
.1096
2.239
.3273
2.291
.3236
.3199
2.089
2.138
2.188
2.213
2.239
2.265
5.129
5.248
5.370
5.495
5.623
2.455
6.026
2.483
2.512
2.541
6.166
2.570
2.600
2.630
2.661
2.692
6.607
6.761
6.918
2.723
2.754
7.413
2.786
7.762
6.310
6.457
7.079
7.244
7.586
2.818
7.943
2.851
8.128
9.2
9.3
9.4
2.884
8.318
9.5
2.917
8.511
2.951
8.710
8.913
9.6
2.985
3.020
9.7
3.055
9.333
9.8
3.090
9.550
9.9
10.0
10.5
3.126
9.772
10.000
11.22
9.120
2.512
4.4
1.585
1.603
1.622
1.641
1.660
.2818
.2661
.2512
.2371
.2239
.07943
.07079
.06310
.05623
.05012
11.0
11.5
12.0
12.5
13.0
3.548
3.758
3.981
4.217
4.467
15.85
17.78
19.95
4.5
4.6
4.7
1.679
1.698
2.818
2.884
2.951
3.020
.2113
.1995
.1884
.04467
.03981
.03548
13.5
14.0
14.5
4.732
22.39
5.012
25.12
1.718
.1778
.03162
15.0
5.309
5.623
28.18
31.62
3.9
4.1
4.2
.6095
.6026
.3715
4.3
.3631
.5957
.3548
.3467
.3388
.3311
4.8
.5821
.1995
2.089
.2985
3.8
.3890
.3802
.5888
.4027
.2089
.2042
4.169
2.065
2.455
3.7
4.0
.6166
1.202
1.230
.2188
2.042
6.2
6.3
6.4
6.5
6.6
.1072
.1047
.1023
.1000
.08913
.3981
.6310
.6237
1.175
.2399
.2344
.2291
2.344
2.399
2.570
2.630
2.692
2.754
.3162
3.162
3.350
12.59
14.13
.5754
.5689
.3236
4.9
1.738
1.758
3.090
.1585
.02512
16.0
6.310
39.81
.5623
.3162
5.0
1.778
3.162
.1413
50.12
.3090
.3020
5.1
1.799
3.236
5.2
5.3
5.4
1.820
1.841
.1259
.1122
1.862
17.0
18.0
19.0
20.0
30.0
7.079
.5559
.01995
.01585
.01259
5.5
5.6
5.7
5.8
5.9
6.0
.5495
.5433
.5370
.5309
.5248
.5188
.5129
.5070
.5012
.4955
.2951
.2884
.2818
.2754
.2692
.2630
.2570
.2512
.2455
6.1
3.311
3.388
3.467
.1000
.01000
.03162
.00100
1.884
1.905
1.928
1.950
1.972
3.548
.01
.00010
.00001
1.995
2.018
.0003162
10-7
40.0
50.0
60.0
70.0
3.890
.0001
10-'
80.0
3.931
.00003162
10-*
10-'
10-'°
90.0
3.631
3.715
3.802
4.074
.003162
.001
10-*
100.0
7.943
63.10
8.913
10.000
31.620
79.43
100.00
100.00
316.20
1,000.00
10,000.00
1,000.00
105
104
3,162.00
107
10,000.00
31,620.00
10'
108
10*
10'°
ELECTRONICS
ALLIED
HANDBOOK
DATA
Table of Values for Attenuator Network Formulas
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A
L L I E D • S
ELECTRONICS
DATA
HANDBOOK
Attenuator Networks
For Insertion Between Equal Impedances
For data covering networks between unequal impedances, see Minimum Loss Pads on
page 10. See also Decibel—Voltage Current and Power Ratio Table on page 6.
See table on page 7 for values of A, B, C, D, E used in the following attenuator net
work formulas.
In the case of L and U networkswhere only the input oroutput can be matched,as required,
the matched side is indicatedby an arrow pointingtoward the pad. On all other networks,
both the input and output circuits are matched.
O
VWr
O—AAMr
R|
O——
O—AAMr
P ~ZB
Ri = ZB
/tj = zc
u
•wv
Ri = ZC
o
-w/v—o
"i
Ri
r2:
Ri
•a/wv—o
R -A
R ~Z
Rl~2C
R -Z
Ri~B
o———i 1
2
u
irVW—i i
R2
B
-WW-
R2
|R|
R|;
—0
Ri = ~?r
2
Rl
R2
O—
—O
•ww-
R - Z
Rl~
D
R - Z
R - Z
R -±
Ri~2E
ELECTRONICS
ALLIED'S
O
O
V\Mr
-WW
R|
Ri
HANDBOOK
DATA
WA
o
1
O
2
<
:R2
2
2
:
:«2
2
2
O
Ri
O
O
W/V—ii
Rt = ZD
R2 = ZE
T
1
*VW
R2-^-
Balanced U
,
O——
1
AW— — o
Ri
R|
2
z
2
r2:
2
R2|
2
2
|*2
2
O
O
2
Ri
1
O——
^yw— —0
Bi-
B.-4
Bridged T
R2 = ZC
R
2C
-
—
Balanced U
Constant Impedance Attenuators in Parallel
Table of f?i Values in Ohms
Numbi r of Channel!
z
2
3
4
5
6
30
10
15
18
20
21.5
50
16.6
25
30
33.3
35.7
150
50
75
90
100
107
200
66.6
100
120
133
143
250
83.3
125
150
166
179
500
166
250
300
333
357
600
200
300
360
400
428
Network
db Loss
6
9.5
12
14
15.5
Rt = Z
Insertion loss
Vtf-t-i
in db = 20 logio N
Where Zl= identical line and load impedances;
and
N = number of channels in parallel.
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Minimum Loss Pads
O
WA-
O
VWV2
fR2
*2
:r2
Z,
*2
2
O-
-O
-VWSr
Balanced
Unbalanced
matched, use a resistor RL in series with
ForMatching Two Impedances where Z\ > Z>
the smaller impedance such that
Rx = VZ, (Zi - Z2)
i?2 =
-o
Rl = Z\ — Z%
Zi Zj
Ri
db loss = 20 logio -v/- z2
db loss =20 logl0 (>Ji +^ - l)
If the smaller impedance only is to be
matched, use a resistor Rs in shunt across
the larger impedance such that
n
Z\ Zi
Rs = zT=-zl
Where Only One Impedance is to be
Matched
If the larger impedance only is to be
Here also db loss = 20 logio \j-^\ Z2
Tables of Ri and R2 Values
When Zi is 600 ohms
and Zt is less than 600 ohms
Zt
500
400
300
250
200
150
100
75
50
40
30
25
R>
245
346
424
458
490
520
548
561
575
580
585
587
R«
1,225
694
425
328
245
173
110
80.2
52.2
41.4
30.8
25.6
db
Loss
3.8
5.7
7.6
8.7
10.0
11.4
13.4
14.8
16.6
17.6
18.9
19.7
When Zt is lessthan25ohms,
let Ri = 600 - Zr
and Ri = Z2
Where Z, is 600ohms,
and Zi is greater than 600 ohms.
z,
800
1,000
1,200
1,500
2,000
2,500
3,000
3,500
4,000
5,000
6,000
8,000 10,000
Ri
400
632
849
1,162
1,673
2,180
2,683
3,186
3,688
4,690
5,692
7,694
9,695
R.
1,200
949
849
775
717
688
671
659
651
638
633
624
619
db
Loss
4.8
6.5
7.6
9.0
10.5
11.6
12.5
13.3
13.9
15.0
15.8
17.1
18.1
WhenZ, is greaterthan 10,000ohms,
let Rx = Zi - 300
and R* = 600
10
A
L L I E D ' S
DATA
ELECTRONICS
HANDBOOK
70-Volt Loud-Speaker Matching Systems
Since the voltage at rated amplifier power
is 70.7, this reduces to:
The EIA 70.7 volt constant voltage
system of power distribution provides the
engineerand technician with a simplemeans
of matching a number of loudspeakers to
an amplifier. To use this method:
Z =
From
1
2
5
10
1. Determine the power required at each
loudspeaker.
2. Add the powers required for the indi
vidual speakers and select an ampli
fier with a rated power output equal
to or greater than this total.
5000
(2)
formula (2) these relationships are:
watt requires 5000 ohm primary
watts requires 2500 ohm, primary
watts requires 1000 ohm primary
watts requires 500 ohm primary
Once the primary taps have been deter
mined, continue on through step 4 and 5
as outlined above. When selecting trans
former primary taps, use the next highest
available value above the computed value.
A mismatch of 25% is generally considered
permissible.
3. Select 70.7-volt transformers having
primary wattage taps as determined
in step 1.*
4. Wire the selected primaries in parallel
across the 70.7-volt line.
Example: Required
5. Connect each secondary to its speaker;
selecting the tap which matches the
voice coil impedance.
One 6 watt speaker with 4 ohm voice coil.
Two 10 watt speakers with 8 ohm voice
coils (use one transformer at this
location).
For transformers rated in impedance, the
following formulas may be used to deter
(1-2) Total power = 0 + 10 + 10 = 26
watts (use a 30-watt amplifier or
other amplifier capable of handling
mine the proper taps in step 3.
Primary
Impedance
70.72
(Amplifier output voltage)2
at least 26 watts)
Desired speaker power
*-?
(3) Z6wa«a = ^P = 833 ohms (use
(1)
1000 ohm transformer)
5000
Z
*These transformers have the primary taps
marked in watts and the secondaries marked in
20
= 250 ohms
(4-5) See sketch below.
ohms.
^4 OHMS I,
250 OHMSo
70.7 VOLTS
^L^
2.0
30
TWO 10
WATT
8 OHM
SPEAKERS
WATT
AMPLIFIER
3=1
W.'/cZ-re+j* £00*V
IOOO
OHMS a
£
11
6
WATT
4
OHM
SPEAKER
3
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Most Used Formulas
DIELECTRIC CONSTANTS
Resistance Formulas
In series
Kind of
Rt — R\ + Rt + R%... etc.
In parallel
Rt =
1
J_ + _L + J_...etc.
Ri
Two resistors
R_
in parallel
Rt
Ri
R1R1
' ~ Rt + R2
Capacitance
In parallel
In series
Ct = Cx + Ct + Cs. . . etc.
Ct =
1
J_ + J_ + i_...etc.
Ci
G2
Two capacitors ,-. _
in series
K Value
1.0
Bakelite
Beeswax
5.0
3.0
Cambric (varnished)
Fibre (Red)
4.0
5.0
Glass (window or flint)
Gutta Percha
8.0
4.0
Mica
6.0
Paraffin (solid)
Paraffin Coated Paper
2.5
3.5
Porcelain
6.0
Pyrex
4.5
Quartz
5.0
Rubber
Slate
3.0
7.0
Wood (very dry)
5.0
* These values are approximate, since true
01
values depend upon quality or grade of material
used, as well as moisture content, temperature
and frequency characteristics of each.
Cid
d
Approximate*
Dielectric
Air (at atmospheric pressure)
+ Cs
Self-Inductance
The Quantity of Electricity Stored Within
a Capacitor is Given by
In series
U = Li 4- L2 + L3... etc.
In parallel
Lt =
Q = CE
where Q = the quantity stored, in
coulombs,
E = the potential impressed
across the condenser, in
1 + 1+ L...etc.
/. i
volts,
C = capacitance in farads.
Lt
Two inductors
j _ Li Lt
in parallel
'
L\
Lx + Lt
Coupled Inductance
The Capacitance of a Parallel Plate
Capacitor is Given by
C = 0.0885
1
In series with fields aiding
KS (N-l)
Lt = L, + L2 + 2M
In series with fields opposing
where
C = capacitance in mmfd.,
Lt = Lx + Lt - 2M
K = dielectric constant,
In parallel with fields aiding
*S = area of one plate in square
centimeters,
1
N = number of plates,
Lx + M
*d = thickness of the dielectric
in centimeters (same as the
+ L, +'
M
In parallel with fields opposing
distance between plates).
1
u
* When S and d are given in inches, change
constant 0.0885 to 0.224.
in micromicrofarads.
1
U =
1
Answer will still be
Lx- M
12
+ Lt-2 M
ALLIED 'S
ELECTRONICS
where
where Lt = the total inductance,
M = the mutual inductance,
Lx and Lt = the self inductance of the
individual coils.
DATA
HANDBOOK
fr = resonant frequency in cycles
per second,
L = inductance in henrys,
C = capacitance in farads,
2;r = 6.28
4tt* = 39.5
Mutual Inductance
The mutual inductance of two r-f coils with
Reactance
fields interacting, is given by
--
M =
of an inductance is expressed by
LA — Lo
XL = 2irfL
4
where
of a capacitance is expressed by
M = mutual inductance, expressed
in same units as La and Lo,
Xc=2~kc
La = Total inductance of coils L\
and Lt with fields aiding,
where Xl = inductive reactance in ohms,
(known as positive reactance),
Lo = Total inductance of coils Lx
and Lt with fields opposing.
Xc = capacitive rectance in ohms,
(known as negative reac
Coupling Coefficient
tance;,
When two r-f coils are inductively coupled
so as to give transformer action, the coup
ling coefficient is expressed by
/ = frequency in cycles per sec
ond,
L = inductance in henrys,
C = capacitance in farads,
M
K =
^LxL2
2tt = 6.28
where K = the coupling coefficient;
(K X 102 = coupling coeffi
cient in %),
Frequency from Wavelength
M = the mutual inductance value,
/ =
Lxand L2 = the self-inductance of the two
coils respectively, both being
3 X 106 „ .,
(kilocycles)
where X = wavelength in meters.
expressed in the same units.
3 X 104
/ =
(megacycles)
Resonance
where X = wavelength in centimeters.
The resonant frequency, or frequency at
which inductive reactance Xl equals capacitive reactance Xc, is expressed by
Wavelength from Frequency
fr = 2-irVLC
also L =
1
4tt2 f2 C
3 X 104
(centimeters)
/
where / = frequency in megacycles.
X -
1
and
C =
3 X 10*
(meters)
/
where / = frequency in kilocycles.
X =
4tt2 f2 L
13
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
In series circuits where phase angle and
Q or Figure of Merit
any two of the Z, R and X components are
known, the unknown component may be
determined from the expressions:
of a simple reactor
Z =
Rl
R
Z =
cos 0
of a single capacitor
R = Z cos d
sin 6
X = Zsin 0
where Z = magnitude of impedance in
ohms,
Kc
where
R = resistance in ohms,
X = reactance (inductive or capaci
Q = a ratio expressing the figure
of merit,
tive) in ohms.
Nomenclature
Xl = inductive reactance in ohms,
Z = absolute or numerical value of
Xc — capacitive reactance in ohms,
impedance magnitude in ohms
R = resistance in ohms,
Rl = resistance in ohms acting in
series with inductance,
Xl = inductive reactance in ohms,
Xc = capacitive reactance in ohms,
Re = resistance in ohms acting in
series with capacitance,
L = inductance in henrys,
C —capacitance in farads,
Impedance
Rl = resistance in ohms acting in
series with inductance,
In any a-c circuit where resistance and
reactance values of the R, L and C com
ponents are given, the absolute or numeri
Re = resistance in ohms acting in
series with capacitance,
cal magnitude of impedance and phase
0 = phase angle in degrees by which
current leads voltage in a ca
pacitive circuit, or lags voltage
angle can be computed from the formulas
which follow.
in an inductive circuit. In a
In general the basic formulas expressing
total impedance are:
resonant circuit, where Xl
equals Xc, 8 equals 0°.
for series circuits,
Degrees X 0.0175 = radians.
1 radian = 57.3°.
Zt =VrTTx?,
,
Numerical MagnitudOof Impedance . . .
for parallel circuits,
R
—WW
of resistance alone
Va» + b,'
Z = R
See page 17 for formulas involving impedance, con
6=0°
ductance, susceptance and admittance.
14
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
1(
of resistance in series
Z = Rx + Rt + Rt. • • etc.
0 = 0°
nfi^
of inductance and capacitance in series
Z = Xl — Xc
0 = -90° when Xl < Xc
-nsw^
= 0° when Xl = Xc
of inductance alone
= 4- 90° when Xl > Xc
Z = Xl
6 = + 90°
of resistance, inductance and capacitance
of inductance in series
in series
Z = Xlx + Xlz 4" -Xia
e = + 90°
. etc.
z = VR2 4- (Xl - Xc)2
-
6 = arc tan
Xl — Xc
R
of capacitance alone
Z = Xc
6 = - 90°
of resistance in parallel
of capacitance in series
1
Z =
Z = Xcx + Xct + Xot • • • etc.
0 = - 90°
1 + 1 + 1...etc.
Rx
Rt
Rz
= 0°
or where only 2 capacitances Ci and C2 are
involved,
I
5- 1 'C' + C'
2tt/\ C,C2
or where only 2 resistances Rx and R2 are
= -90°
-vwv
aw^—I
involved,
z_ RiR*
r&Wt-
Rx 4- R2
of resistance and inductance in series
9 = 0°
Z = Vr2 4- Xl2
Xl
6 = arc tan
B
of inductance in parallel
of resistance and capacitance in series
1
Z =
z =Vr2 + Xc2
Xlx
Xc
0 =
arc tan —
= 4-90°
R
15
XLt
XL3
. . etc.
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
CDor where only 2 inductances Lx and L\ are
involved,
of inductance and capacitance in parallel,
7 — Xl Xc
Lx L2
Z = 2tt/
Xl — Xc
Lx + Li
= 4-90°
6 = 0° when Xl = Xc
r—nnp^—i
L
Hfer
R
-AW-
of inductance, resistance and capacitance in
of capacitance in parallel
parallel
1
Z =
JL + J. + -L
Xcx
d = -
Xct
RXlXc
Z =
V Xl2Xc* + (RXl-RXcY
Xc, • ' • etc-
90°
6 = arc tan
RXc - RXl
Xl Xc
or where only 2 capacitances Ci and C2 are
involved,
z-
!
2*f (C, 4- C.)
0 = -
If-
90°
of inductance and series resistance in paral
lel with capacitance
CD
/
Z=
R* + Xl2
z = xc yJRi 4-, (X
_•
(Xl - Xc?
of inductance and resistance in parallel,
RXl
Vr2 + Xl'
6 = arc tan
XlXc-Xl'-R*
RXc
0 = arc tan —
Xl
CD
If
of capacitance and series resistance in par
allel with inductance and series resistance
of capacitance and resistance in parallel,
(Rl2 4- Xl2) (Rc2 4- Xc2)
•V (Rl + Rc)1 + (Xl - Xc)2
Z =
VR2 + Xc2
=
♦
R
— arc tan —
6 = arc tan
Xc
16
XL(Rct+Xci)-Xc (Rl2+Xl2)
Rl(Rc2+Xc2) + Rc (Rl1 4- Xl*)
ELECTRONICS
ALLIED'S
HANDBOOK
DATA
Conductance
Admittance
In direct current circuits, conductance is
expressed by
mittance of a series circuit is expressed by
In an alternating current circuit, the ad
1
Y =
-I
Vr1 4- x2
Admittance is also expressed as the recipro
cal of impedance, or
where G = conductance in mhos,
R = resistance in ohms.
*-\
In d-c circuits involving resistances Rx, R2,
R3, etc., in parallel,
where Y = admittance in mhos,
the total conductance is expressed by
G total = Gx + Gt + G3..
R = resistance in ohms,
X = reactance in ohms,
Z = impedance in ohms.
etc.
and the total current by
/total = E Gtotal
R and X in Terms of G and B
and the amount of current in any single resis
tor, Rt for example, in a parallel group, by
. _
Resistance and reactance may be expressed
in terms of conductance and susceptance
/total Crj
as follows:
' ~ Gx + Gt + G,. . . etc. '
R -
R, E and / in Ohm's law formulas for d-c
circuits may be expressed in terms of con
ductance as follows:
• -I,
B
G
X =
G' + B*
G2 4- B"
G, B, Y and Z in Parallel Circuits
,-|, i-m,
In any given a-c circuit containing a
number of smaller parallel circuits only,
where G = conductance in mhos,
the effective conductance Gt is expressed by
R = resistance in ohms,
G, = Gx + Gt-r-G3... etc.,
E = potential in volts,
and the effective susceptance Bt by
/ = current in amperes.
Bt = Bx + B, + B,. . . etc.
Susceptance
and the effective admittance Yt by
Yt^y/Gf + Bt*
In an alternating current circuit, the sus
ceptance of a scries circuit is expressed by
and the effective impedance Zt by
B= ^
1
R2 + X2
Zt =
or, when the resistance is 0, susceptance
becomes the reciprocal of reactance, or
VgT+b?
1
or
—
Yt
where R = resistance in ohms,
X = reactance (capacitive or induc
B=l
tive) in ohms,
G = conductance in mhos,
X
B = susceptance in mhos,
Y = admittance in mhos,
Z = impedance in ohms.
where B = susceptance in mhos,
R = resistance in ohms,
X = reactance in ohms.
17
ALLIED'S
ELECTRONICS
D A
T A
H A
N
D B O O
K
Transient / and E in LCR Circuits
The formulas which follow may be used
to closely approximate the growth and
decay of current and voltage in circuits
RC = time constant of RC circuit in
seconds,
L
involving L, C and R:
where
— = time constant of RL circuit in
seconds,
t <= any given time in seconds after
switch is thrown,
e = a constant, 2.718 (base of the
natural system of logarithms),
i = instantaneous current in am
peres at any given time (t),
E —potential in volts as designated,
R = circuit resistance in ohms,
C = capacitance in farads,
L = inductance in henrys,
V = steady state potential in volts,
Vc = reactive volts across C,
Sw <= switch
The time constant is defined as the time
in seconds for current or voltage tofall to |
or 36.8% of its initial value or to rise to
(l —g) or approximately 63.2% of its final
Vl = reactive volts across L,
Vr = voltage across R
value.
Charging a De-energized Capacitive Circuit
Discharging an Energized Capacitive Circuit
E=applied potential.
E = potential to which C is
charged prior to closing Su>.
.
E
.
-J-
E --i.
i=r
Vc= E(l- e~™\
VR = Ee~RC
RC
Vc = Va = Ee *c
18
ALLIED'S
ELECTRONICS
DATA
HANDB O OK
An Energized Inductive
Voltage is Applied to a Deenergized Inductive Circuit
Circuit is Short Circuited
<•>
Fuse
Blows
L
Sw
Sw
-CM
O-
E = counter potential induced in
E = applied potential
coil when switch is closed.
<-!'(--")
-
lit
Vr = E
1- e
m
Rt
I-
Vl = Ee
Vl= Vn = Ee
L
L
Steady State Current Flow
In a Capacitive Circuit
In an Inductive Circuit
In a capacitive circuit, where resistance
loss components may be considered as neg
In an inductive circuit, where inherent
resistance and capacitance components may
ligible, the flow ofcurrent at a given alter
nating potential of constant frequency, is
rent at a given alternating potential of a
be so low as to be negligible, the flow of cur
constant frequency, is expressed by
expressed by
E
Xc
I
_ E__
= E (--WC)
1
E
Xl~ 2tt/L
2tt/C
where
where / = current in amperes,
I = current in amperes,
Xl = inductive reactance of the cir
Xc = capacitive reactance of the cir-
cuit in ohms,
• cuit in ohms,
E = applied potential in volts.
E = applied potential in volts.
19
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Transmission Line Formulas
Attenuation in decibels per foot of wire is
Concentric Transmission Lines
given by
Characteristic impedance in ohms is given
by
,
db =
Z = 138 log?-1
i 2D
logT
R-f resistance in ohms per foot of copper
line, is given by
R-f resistance in Ohms per loop-foot of
wire, is given by
r=V7(-k +i)xl°-'
_
Rf =
Attenuation in decibels per foot of line, is
2X10-av7
d
where Z = characteristic
given by
a
0.0157 Rf
impedance in
ohms,
=
4.6v7(di + d2)
«(log£)
D = spacing between wire centers
in inches,
X 10"
d = the diameter of the conductors
in inches,
where Z = characteristic impedance in
ohms,
L = inductance in microhenrys per
foot of line,
r = radio frequency resistance in
ohms per foot of copper line,
C = capacitance in micromicrofar
ads per foot of line,
a = attenuation in decibels per foot
of line,
db = attenuation in decibels per foot
of wire,
d\ = the inside diameter of the outer
Rf = r-fresistance in ohms per loop-
conductor, expressed in inches,
foot of wire,
cfc = the outside diameter of the inner
conductor, expressed in inches,
f = frequency in megacycles.
/ = frequency in megacycles.
Vertical Antenna
Two-Wire Open Air Transmission Lines
The capacitance of a vertical antenna,
shorter than one-quarter wave length at its
operating frequency, is given by
Characteristic impedance in ohms is given
by
Z=276(log ^
r
17/
I7i
241
-i
Inductance in microhenrys per foot of line
is given by
L=0.281 (log ^
Capacitance in micromicrofarads per foot
d = diameter of antenna conductor
in inches,
of line is given by
C =
-@'j
where Ca = capacitance of the antenna in
micromicrofarads,
I = height of antenna in feet,
/ = operating frequency in mega
3.68
cycles,
c = 2.718 (the base of the natural
system of logarithms).
logT
20
ALLIED'S
HANDBOOK
DATA
ELECTRONICS
Trigonometric Relationships
In any right triangle, if we let
8 = the acute angle formed by the hypot
enuse and the base leg,
tf> = the acute angle formed by the hypot
enuse and the altitude leg,
H = the hypotenuse,
also
A = the side adjacent 0 and opposite </>,
0 = the side opposite 0 and adjacent$,
then
sin 0 = cos0
esc
= SCC0
COS 0 = s\n<f>
sec <
= CSC<£
tan 6 = cot0
cot I
= tan0
sine of8 = sin 8 = jj
and
1
1
=
cosine of8 = cos 8 = jj
CSC
1
1
tangent of8 = tan 8 = ^
=
sec i
1
cosecant of 8 = esc 8
secant of 8 = sec 8
cotangent of 8 = cot 8
1
= cot0
0
The expression "arc sin" indicates, "the
angle whose sine is" . . .; likewise arc tan
H
A
A
indicates, "the angle whose tangent is" . . .
0
etc.
See formulas in table below.
A
H
O
<t>
8
0
Va2 + o2
A&O
arc tan —
VH2 - A2
A& 8
A tan 0
.
A
arc sin —
ti
H
90° -
0
cos 0
A
A
tan 4>
sin <f>
90° - 4>
0
0
arc sin —
arc cos —
.
OA 0
A
arc cos —.
A
A&o
,
arc tan —
A
A
A&H
O&H
= tan0
cot I
tan0
Formulas for De»ermining Unknown Values of . . .
Known
Values
= COS0
sec<
COS0
H
= sin 0
csc(
sin0
Vh*- - o2
ti
0
0
tan 0
sin 0
0
o&<t>
0 tan <f>
H& 8
H cos 0
tfsin 0
H&<$>
H sin <f>
H cos <j)
cos <(>
0
90° -
0
90° - <t>
90° - <f>
21
90° -
A
L L I E D * S
ELECTRONICS
DATA
HANDBOOK
Vacuum Tube Formulas and Symbols
Vacuum Tube Constants
Amplication factor (Mu orp) is given by
u =
A E
A Eg
Maximum power output in fix, which results
when Rl=Tp, is given by
(with Ip constant)
Dynamic plate resistance in ohms, is
Maximum uridistorted poweroutput in Rl.
which resultswhenRL=2rp, is givenby
given by
2(nE,y
A E
9rp
• •"'
rv - ——• (witli Eg constant)
A Iv
Mutual conductance in mhos, is given by
gm
AEi
Required cathode biasingresistor in ohms,
for a single tube is given by
Eg
(with Ep constant)
Vacuum Tube Symbols
Vacuum Tube Formulas
Muoru = Amplification factor,
Gain per stage is given by
rp = Dynamic plate resistance in
ohms,
gm =
Ep =
Eg =
Ip =
Hfo +r,/
Voltage output appearing in Rl is given
by
Rl = Plate load resistance in ohms,
( EsRl \
^{rp + Rj
/* = Total cathode current in am
peres,
Em = Signal voltage in volts^
A = change or variation in value,
Power output in Rl, is given by
Rl
Mutual conductance in mhos,
Plate voltage in volts,
Grid voltage in volts,
Plate current in amperes,
( *B. i
which may be either an incre
ment (increase), Or a decrement
(decrease).
\rp + Rl)
Peak, R.M.S., and Average A-C Values of £ & /
To g«l...
Given
Valuo
Peak
Peak
R.M.S.
1.41 X R.M.S.
Av.
1.57 X Av.
R.M.S.
Av.
0.707 X Peak
0.637 X Peak
0.9 X R.M.S.
1.11 X Av.
22
>
ELECTRONICS
ALLIED'S
DATA
HANDBOOK
Transistor Formulas and Symbols
Common Emitter Configuration
Transistors can be made to amplify, detect, or to oscillate in much the same
manner as vacuum tubes. Shown in the drawings below,is a comparison
between a triode vacuum-tube and a PNP transistor; where the transistor
EMITTER
CATHODE
PNP Transistor
Triode Vacuum Tube
base is comparable to the tube grid, the transistor emitter is comparable to
thetubecathode, andthe transistor collector iscomparable to the tubeplate.
Transistor Symbols
Transistor Formulas
a = Current gain common
Input Resistance,
base
Ri =
Mi
Ae (Av) = Voltage gain
Ai = Current gain
Current Gain,
A = Power gain
B = Current gain common
Ai = -^f (with Ve constant)
emitter
Voltage Gain,
h = Base current
AV
Ae = -TtT5 (with Icconstant)
Ie = Collector current
/„ = Emitter current
Output Resistance,
Ro —
AV0
AIo
/, = Input current
Pi = Input power
P0 = Output power
An =
APo
APi
Ri = Input resistance
R0 = Output resistance
Vb = Base voltage
Power Gain,
The current gain of the common base
configuration is alpha, where
Ve = Collector voltage
Vi = Input voltage
a = -rf (with Ve constant)
ill e
A direct relationship exists between
The current gain of the common
emitter is beta, where
the alpha and beta of a transistor.
B
/3 = -rf (^h Vc constant).
a
=
l + B
Courtesy Howard W. Sam's Photofaet Publication: "ABCs of Transistors.'
23
B =
a
1 -a
A L L I E D ' S
ELECTRONICS
DATA
HANDBOOK
Transistor Amplifier Circuit Configurations
With Vacuum & Tube Counterparts
The transistors of primary interest to the
exclusively for mostamplification purposes
radio engineer and service technician are
as are the common or grounded-cathode
the PNP and NPN junction types, whose
transistor actions are identically alike, ex
vacuum tube circuits. The common-base
and common-grid as well as commoncollector common-plate circuits are used
more for special applications such as
impedance matching to and from audio
transmission lines, etc.
cept that symbohcally, the emitter arrow
points towards the base in the PNP and
away from the base in the NPN. The
common-emitter circuits are used almost
PNP
CONFIGURATIONS
NPN CONFIGURATIONS
|*m-
HWV*
VW
VACUUM-TUBE CONFIGURATIONS
<
+BATT.
8 +
Common emitter—Common cathode.
E
C
wr ^ f
+ BATT.
-BATT.
-BATT.
I
+BATT.
B +
Common base—Common grid.
B +
•
-BATT.
O
+ BATT.
Common collector—Common plate.
24
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Common-Emitter Amplifier Circuits
Using Transistors Only
In comparing the PNP and NPN circuits
shown here, note that the current flow in
the components of one is completely re
versed in the other. With the vacuum tube,
this complete interchange of current and
voltage polarities does not exist. Because of
this interchange in the transistor, circuits
which have no parallel in vacuum-tube
circuitry can be produced. Nevertheless,
the circuits of transistorized equipment are
still quite similar in many respects to those
of equipment employing vacuum tubes.
Using PNP Transistors
TI
o
o
o
o
o
1
-AM—f
-=- BATT.
•1 t i
With Negative
Battery Terminal Grounded
With Positive
Battery Terminal Grounded
Using NPN Transistors
e
:1
n,
-=- BATT.
S
BATT.
I
With Negative
Battery Terminal Grounded
With Positive
Battery Terminal Grounded
25
AILIED'S
ELECTRONICS
DATA
HANDBOOK
D-C Meter Formulas
Ohms per Volt Rating of a Voltmeter
Meter Resistance
The d-c resistance of a milliammeter or
voltmeter movement may be determined as
follows:
where Sl/V = ohms per volt,
I/» = full scale current in amperes.
Fixed Current Shunts
1. Connect the meter in series with a
suitable battery and variable resist
ance Ri as shown in the diagram above.
2. Vary Ri until a full scale reading is
obtained.
R =
Rm
3. Connect another variable resistor Ri
across the .meter and vary its value
until a half scale reading is obtained.
R = shunt value in ohms,
N= the new full scale reading divided
by the original full scale reading,
both being stated in the sameunits,
4. Disconnect R2 from the circuit and
measure its d-c resistance.
Rm = meter resistance in ohms.
The meter resistance Rm is equal to the
measured resistance of Rt.
Multi-Range Shunts
Caution: Be sure that Ri has sufficient
resistance to prevent an off scale reading
of the meter. The correct value depends
upon the sensitivity of meter, and voltage
of the battery. The following formula can
R|*2
be used if the full scale current of the meter
^
»-tWWVWW-l-»M/WvVV\^t—
is known:
ff,=
1- R2
voltage of the battery used
full scalecurrent of meter in amperes
1_ Ri
Ri =
1+
Ri + 2-T-Rm
N
For safe results, use twice the value com
puted. Also, never attempt to measure the
Ri = intermediate or tapped shunt value
in ohms,
resistance of a meter with an ohmmeter. To
do so would in all probability result in a
burned-out or severely damaged meter,
sincethe current requiredfor the operation
of some ohmmeters and bridges is far in
excess of the full scale current required by
the movement of the average meter you
R1+2 = total resistance required for the low
est scale reading wanted,
Rm = meter resistance in ohms,
N = the new full scale reading divided
by the original full scale reading,
both being stated in the same units.
may be checking.
26
>
ALLI ED'S
ELECTRONICS
Voltage Multipliers
HANDBOOK
DATA
Measuring Resistance—(Continued)
n/VWWWWWVW^-
+ .
+
R
R —~j
if*
Rm
with Milliammeter, Battery and Known Resistor
R = multiplier resistance in ohms,
Ef» = full scale reading required in volts,
IA = full scale current of meter in am
«••(*+**)<Mr)
Rx = I Ry 4" Rm
Rx =
Rv =
Rm =
h =
h =
peres,
Rm = meter resistance in ohms.
Measuring Resistance
—WWWWr-^lllll-^-
Sw.
unknown resistance in ohms,
known resistance in ohms,
meter resistance in ohms,
current reading with switch closed,
current reading with switch open.
Rx
>• iWVW/WV
'
Rx
with Milliammeter and Battery*
Rx — Rt
with Voltmeter and Battery
\h - h)
Rx— Rm
Rx = unknown resistance in ohms,
Rm = meter resistance in ohms, or effec
ffi-0
Rx = unknown resistance in ohms,
tive meter resistance if a shunted
Rm = meter resistance in ohmd, including
range is used,
multiplier resistance if a multiplied
I\ = current reading with switch open,
12 = current reading with switch closed,
Ri = current limiting resistor of suffi
cient value to keep meter reading
on scale when switch is open.
range is used,
Ei = voltmeterreadingwithswitch closed,
E2 —voltmeter reading with switch open.
* Approximately true only when current limiting
resistor is large as compared to meter resistance.
Multiplier Values for 27-Ohm 0-1
Milliammeter
Shunt Values for 27-Ohm 0-1 Milliammeter
FULL SCALE
CURRENT
0-10
0-50
FULL SCALE
VOLTAGE
SHUNT
RESISTANCE
0-10
volts
0-50
volts
ma
ma
3.0
0.551
ohms
ohms
0-100
volts
0-250
volts
0-100 ma
0.272
ohms
0-500
volts
0-500 ma
0.0541 ohms
0-1,000 volts
27
MULTIPLIER
RESISTANCE
10,000
50,000
100,000
250,000
500,000
1,000,000
ohms
ohms
ohms
ohms
ohms
ohms
A
L L I E D
'
ELECTRONICS
S
HANDBOOK
DATA
Ohm's Law for A-C Circuits
The fundamental Ohm's law formulas for
Power Factor
a-c circuits are given by
E
The power-factor of any a-c circuit is
equal to the true power in watts divided by
the apparent power in volt-amperes which
is equal to the cosine of the phase angle, and
is expressed by
z = E-
/ =
I
E = IZ,
where /
Z
E
P
8
=
=
=
=
=
P = EI cos 8
current in amperes,
impedance in Ohms,
volts across Z,
power in watts,
phase angle in degrees.
p.f. =
EI cos 8
FJ
EI
= cos 0
where
p.f. = the circuit load power factor,
EI cos 8 = the true power in watts,
EI = the apparent power in volt-
Phase Angle
amperes,
E = the applied potential in volts
The phase angle is defined as the differ
ence in degrees by which current leads
voltage in a capacitive circuit, or lags volt
/ = load current in amperes.
age in an inductive circuit, and in series
circuits is equal to the angle whose tangent
is given by the
Therefore
in a purely resistive circuit.
v
ratio —• and is expressed by
8 = 0° and p.f. = 1
R
.
and in a reactive circuit,
X
arc tan —
R
8 = 90° and p.f. = 0
where X = the inductive or capacitive reac
tance in ohms,
and in a resonant circuit,
8 = 0° and p.f. = 1
R = the non-reactive resistance in
ohms,
of the combined resistive and reactive com
Ohm's Law for D-C Circuits
ponents of the circuit under consideration.
The fundamental Ohm's law formulas for
Therefore
d-c circuits are given by,
in a purely resistive circuit, 8 = 0°
in a purely reactive circuit, 8 = 90°
and in a resonant, circuit,
-I'
8 = 0°
E = IR,
also when
8 = 0°, cos 8 = 1 and P = EI,
8 = 90°, cos 8 = 0 and P = 0.
R-E
R-j,
P = EI.
where / = current in amperes,
R = resistance in ohms,
E = potential across R in volts,
Degrees X 0.0175 = radians.
P = power in watts.
1 radian = 57.3°.
28
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
X
Ohm's Law Formulas for D-C Circuits
Formulas for Determining Unknown Values of ...
Known
Values
R
/
l&R
E
P
IR
PR
E
EI
l&E
I
l&P
P
P
I2
I
E
E*
R
R
R&E
Vpr
4
R&P
P
E*
E
P
E&P
Ohm's Law Formulas for A-C Circuits
H
Formulas for Determining Unknown Values of . . .
Known
Values
/
1
l&Z
E
P
IZ
PZ cos 8
E
l&E
IE cos 0
I
P
P
V cos 8
I cos 8
l&P
E
E2 cos 8
Z
Z
Z&E
Z&P
1 P
\ Z cos
1 PZ
Vcos 8
8
P
E2 cos 8
E cos 8
P
E&P
29
R
A LLI ED' S
ELECTRONICS
DATA
HANDBOOK
Coil Winding Data
Turns Per Inch
Gauge
Coil Winding Formulas
The following approximations for wind
Number of Turns per Linear Inch
ing r-f coils are accurate to within approx.
1% fornearlyall smallair-core coils, where
(AWG)
or
(B&S)
D.S.C.
Enamel
S.S.C.
and
D.C.C.
L = self inductance in microhenrys,
N = total number of turns,
r = mean radius in inches,
S.C.C.
1
2
3
4
5
6
7
8
9
10
11
1?
13
14
—
—
—
—
—
—
—
—
—
—
—
—
7.6
8.6
9.6
10.7
12.0
—
—
—
—
3.3
3.8
4.2
4.7
5.2
3.3
3.6
4.0
4.5
5.0
5.9
6.5
7.4
8.2
9.3
5.6
6.2
7.1
7.8
8.9
10.3
11.5
12.8
14.2
15.8
9.8
10.9
12.0
13.8
14.7
Single-Layer Wound Coils
15
13.5
15.0
16.8
16
17
18
19
20
18.9
21.2
23.6
26.4
29.4
18.9
21.2
23.6
26.4
29.4
17.9
19.9
22.0
24.4
27.0
16.4
18.1
19.8
21.8
23.8
21
22
23
24
25
33.1
37.0
41.3
46.3
51.7
32.7
36.5
40.6
45.3
50.4
29.8
34.1
37.6
41.5
45.6
26.0
30.0
31.6
35.6
38.6
26
27
58.0
64.9
28
29
30
72.7
55.6
61.5
68.6
81.6
90.5
74.8
83.3
50.2
55.0
60.2
65.4
41.8
45.0
48.5
51.8
55.5
31
32
33
—
—
—
101.
113.
92.0
101.
34
35
127.
143.
158.
110.
120.
132.
36
37
38
39
40
175.
198.
224.
248.
282.
143.
154.
166.
181.
194. J
71.5
77.5
83.6
90.3
97.0
104.
111.
118.
126.
133.
140.
I = length of coil in inches,
b = depth of coil in inches.
—i—-I
30QOOOOOOC-
axmxxttg
L =
N =
(ri\r)a
9r-r-10Z
y/LC&r + 101)
Multi-Layer Wound Coils
L =
59.2
62.6
66.3
70.0
73.5
Or+ 91 + 106
Single-Layer Spiral Wound Coils
77.0
hH
80.3
83.6
86.6
89.7
(rJV)a
8r+116
30
^
ELECTRONICS
ALLIED'S
HANDBOOK
DATA
Table of Standard Annealed Bare Copper Wire
Using American Wire Gauge (B&S)
Gauge
WEIGHT LENGTH
RESISTANCE AT 68* F
Circular
Mils
Pounds
Feet
Ohms
Feet
Ohms
perM'
per Lb.
perM'
per Ohm
per Lb.
(B&S)
Min.
Norn.
Max.
0000
000
00
0
.4554
.4600
.4055
.3512
.3217
.4096
.3648
.3249
.4646
.4137
.3684
.3281
211600.
167800.
133100.
105500.
6400i
507.9
402.8
319.6
i
.2864
2
s
4
.2550
.2893
.2576
.2294
.2043
.2922
.2602
.2317
.2063
83690.
66370.
52640.
41740.
253.3
2000)
159.3
.1604
.1819
.1620
.1637
.1636
.1429
.1272
.1443
.1285
.1457
33100.
26250.
20820.
16510.
100.2
79.48
630)2
490)8
9
10
11
12
.1133
.1009
.08383
.08000
.1144
.1019
.09074
.08081
.1155
.1029
.09165
.08162
13090.
10380.
8234.
6530.
39053
31.43
240)2
19.77
25.23
31.82
40.12
5059
.7921
0)989
1.260
10)88
IS
14
15
16
.07124
.06344
.05650
.05031
.07196
.06408
.05707
.05082
.07268
.06472
.05764
5178.
4107.
15.68
12.43
0)5133
2583.
90)58
7.818
63.80
80.44
101.4
1270)
20)03
20)25
3.184
40)16
17
18
19
20
.04481
.03990
.03553
.03164
.04526
.04030
.03589
.03196
.04571
.04070
.03625
.03228
2048.
1624.
1288.
1022.
6.200
40)17
3.899
3.092
161.3
203.4
256.5
323.4
21
22
23
24
.02818
.02510
.02234
.01990
.02846
.02535
.02257
.02010
.02874
.02560
.02280
.02030
810.1
642.4
509.5
404.0
25
26
27
28
.01770
.01790
.01578
.01406
.01251
.01594
.01420
.01264
.01810
.01610
.01434
.01277
320.4
254.1
201.5
159.8
29
SO
31
32
.01115
.008828
.007850
.01126
.01003
.008928
.007950
.01137
.01013
.009028
.008050
126.7
100.5
79.7
6321
SS
34
35
36
.006980
.006205
.005515
.004900
.007080
.006305
.005615
.005000
.007180
.006405
.005715
.005100
37
38
39
40
.004353
.003865
.003431
0)03045
.004453
.003965
.003531
.003145
0)04553
.004065
0)03631
0)03245
41
42
43
44
45
46
.00270
.00239
.00212
.00187
.00166
.00147
.00280
.00249
.00222
0)0290
.00259
0)0232
.00207
.00186
.00167
5
6
7
8
Surrent*
Capacity
(AWQ)
or
AREA
DIAMETER INCHES
.227?
.2023
.1601
.00993
.00197
.00176
.00157
.1298
3257.
50.13
39.75
31.52
126.4
0)004891
0)007778
.001237
.001966
9.980
120)8
15.87
20.01
.3133
.3951
.4982
0)282
3192.
2531.
2007.
1592.
.003127
0)04972
0)07905
.01257
1262.
1001.
794.
629.6
.01999
08178
.05053
.08035
817.7
.3836
4042
.2413
.1913
.1817
.1203
25.00
0)9542
.07568
19;83
.06001
1&72
.64759
.03774
12.47
8070.
6400.
5075.
4025.
1.523
§699
§£88
.02993'
*:8489
ma
6.2001
.01877
4.9284
30)809
3.0976
2.4649
0)1492
.01175
.00938
.00746
♦Note: Values from National Electrical Code.
31
100
80
SO
.1239
.1663
.1970
.2485
407.8
514.2
.6100
.4837
225
175
150
125
3.947
4.977
6.276
70)14
50)64
&3S5
80)51
10.15
499.3
.1278
3960)
3140)
2490)
.2032
0)136
197.5 .8167
156.5 10299
124.2 2.065
98.5 3.283
5.221
8401
13.20
20.99
78.11
1031.
1300.
1639.
2067.
32.37
40.81
51.47
64.90
30.90
240)0
19.43
15.41
53.06
84.37
134.2
2607.
3287.
4145.
5227.
81.83
103.2
130.1
164.1
12.22
9.691
7.685
6.095
2134
339.2
5394
857.6
6591.
8310.
10480.
13210.
2060)
2600)
329.0
414.8
40)33
30)33
3.040
2.411
16660.
21010.
26500.
33410.
523.1
659.6
831.8
1049.
10)12
10)16
42140.
53270.
67020.
85100.
106600.
134040.
1323.
1673.
2104.
2672.
3348.
4207.
61.95
49.13
38.96
33.37
1364.
2168.
3448.
5482.
8717.
00)534
13860.
22040.
35040.
.7559
0877
.4753
.3743
.2987
.2377
55750.
89120.
141000.
227380.
356890.
563900.
1.202
70
55
50
35
25
20
15
.3230
120)0
16.14
20.36
25.67
646.4
Rubber
nsulated
0)0007652
0)001217
.0001935
.0003076
2.482
3.130
2.462
1.945
1.542
.7692
20400.
16180.
12830.
10180.
.04901
.06180
.07793
.09827
1.561
1.968
(Amps)—
«
S
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Single-Layer Wound Coil Chart
Axis
i-0
K
L
10-q
8-400
65-
-i
-20,000
4-
-300
•10,000
-2
3-
6,000
•4,000
-200
w„*
3,000
2,000
r3
N&*
-,«-*'
2-
-150
T,000
'100
•90
r4
•600
80
-70
200
1-
rS
•60
-too
•50
80
•60
r6
-40
.8-
•40
•30
•20
r30
-7
-,0
.6-
N=
Total no. of turns
:: L=
3
r8
.5-
Inductance /uhs
r^+fn ni DIAMETER
K = Ratio
of LENGTH
.4-
•2
r'5
D =
-9
-10
Diameter (inches)
•1.0
-.8
-.6
.3-
-.4
-.3
=-io
-.2
-.1
L5
.2-
E-ll
Courtesy, P. R. Mallory & Co., Inc.
32
L.S
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Single-Layer Wound Coil Chart
The chart on the opposite page provides
2. Now move the straightedge so as to
a convenient means of determining the un
known factors of small sized single-layer
wound r-f coils. Values thus found so closely
form a second line which will intersect
this same point on the axis column,
and the diameter D.
approximate thosedetermined by measure
3. The point where this line intersects
ment or mathematical calculation as to be
the L column indicates the inductance
of the coil in microhenries.
entirely satisfactory for all practical pur
poses of experimentation, design, and re
pair work. Since in all coils of this type, the
Example: Given the diameter, winding
length and inductance in microhenries,— to
difference between the mean and inner di
ameter of the winding is so slight as to be
find the number of turns;
negligible, D in all instances may be either
1. Simply reverse the process outlined
the mean or inner diameter as desired.
above for determining inductance.
Example: Given the total number of
turns, winding length and diameter of a
coil,— to find the inductance;
2. After finding the number of turns, con
sult the wire table on page 26 and de
termine the size of wire to be used.
1. Place a straightedge on the chart so as
to form a line intersecting the number
of turns N, and the ratio of diameter
to length K, and note the point inter
The dotted lines appearing on the chart
illustrate the correct plotting of a 600-microhenry coilconsisting of 100turns of wire,
wound to 51/64" on a form 2" in diameter.
sected on the linear axis column.
Inductance, Capacitance, Reactance Charts
Since A'/,= Xc at resonance in most radio
circuits, the charts may also be used to find
the resonant frequency of any combination
The direct-reading charts appearing on
the following three pages are designed for
determining unknown values of frequency,
inductance, capacitance and reactance com
of L and C.
ponents operating in a-f and r-f circuits.
To illustrate with a simple example, sup
pose the reactance of a 0.01 pi. capacitor
is desired at a frequency of 400 cycles. Place
a straight-edge across the proper chart so as
to connect the points 0.01 pi. and 400
cycles per sec. The quantity desired is the
point of intersection with the reactance
scale which is 40,000 ohms. The straight
edge also intersects the inductance scale at
15.8 henrys indicating that this value of
The simplifications embodied in these
charts make them extremely useful. The
frequency range covered comprises the fre
quency spectrum from 1 cycle per second
up to 1000 megacycles per second. All of
the scales involved are plotted in actual
magnitudes so that no computations are re
quired to determine the location of the dec
imal point in the final result.
To make these conditions possible the
inductance likewise has a reactance of 40,-
frequency spectrum has been divided into
000 ohms at 400 cycles per sec. and further
more, that these values of L and C produce
resonance at this frequency.
three parts:
Chart I (page 30)—Covers the range from
1 cycle to 1000 cycles.
Chart II (page 31)—From 1 kilocycle to
There are many practical uses for these
charts. The radio experimentor, mainten
ance man and engineer will find them
helpful in the rapid solution of many re
actance problems. Unusual care was exer
cised in laying out the various scales in
order to secure a high degree of accuracy
1000 kilocycles.
Chart m (page 32)—From 1 megacycle to
1000 megacycles.
Inductance, capacitance, reactance and
frequency have been plotted so that the re
actance offered by an inductance or capac
for the charts. Results should be obtainable
itance at any frequency may be readily de
termined by placing a straight-edge across
the chart connecting the known quantities.
which are at least as accurate as might be
secured with a ten-inch slide rule.
33
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LI HENRIES
INDUCTANCE
HANDBOOK
DATA
ELECTRONICS
ALLIED'S
Metric Relationships
4f
^
,/vv./
^
«f
v
/
<r
^
/SS////S4
«f
•**
<r
8
>
«s
1 111 I
/
3> £
$?
«Jf
•<-"
•cf
*?
>?
H
I
/
0»
term watt is a basic unit). The number of
The above chart shows the relation be
tween the American and the metric systems
steps so counted is three, and the direction
This chart also serves to quickly locate
was to the left. Therefore, 5.0 milhwatts is
the equivalent of .005 watts.
of notation.
the decimal point in the conversion from
Example: Convert 0.00035 microfarads to
one metric expression to another.
Example: Convert 5.0 milliwatts to watts.
Place the finger on milli and count the num
micromicrofarads. Here the number of steps
counted will be six to the right. Therefore
0.00035 microfarads is the equivalent of
ber of steps from there to units (since the
350 micromicrofarads.
Metric Conversion Table
DESIRED
ORIGINAL
VALUE
Mega
Kilo
3>
Mega
Kilo
Units
+
3
VALUE
Centi
Deci
Milli
Micro
Micromicro
18>
6>
7-y
8>
9>
12>
3>
4>
5>
6>
9>
15>
1>
2>
3>
6>
12*
1>
2->
5->
11>
1>
4>
10>
3>
9>
Units
<- 6
+
3
Deci
<• 7
+
4
+
1
2
Centi
<• 8
+
5
+
Milli
-<- 9
+
6
+ 3
+ 2
+
1
+
4
+
3
+10
+
9
+
1
Micro
+12
+
9
+ 6
+
5
Micromicro
-(-18
-(-15
+12
+11
6>
+
6
Example: Convert 0.15 ampere to milliamperes. Starting at the "Units" box in
The above metric conversion table pro
vides a fast and automatic means of con
version from one metric notation to another.
the left-hand column (since ampere is a
basic unit of measurement), move horizon
The notation "Unit" represents the basic
tally to the column headed by the prefix
"Milli", and read 3-K Thus 0.15 ampere is
units of measurement, such as amperes,
volts, ohms, watts, cycles, meters, grams,
etc. To use the table, first locate the origi
nal or given value in the left-hand column.
Now follow this line horizontally to the
vertical column headed by the prefix of
the desired value. The figure and arrow
at this point indicates number of places
and direction decimal point is to be moved.
the equivalent of 150 milliamperes.
Example: Convert 50,000 kilocycles to
megacycles. Read in the box horizontal to
"Kilo" and under "Mega", the notation
-<-3, which means a shift of the decimal
three places to the left. Thus 50,000 kilo
cycles is the equivalent of 50 megacycles.
37
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
How to Use Logarithms
Logarithms are used to simplify Numerical
computations involving multiplications, di
vision, powers and roots. With logarithms,
multiplication isreduced tosimple addition,
and division is reduced to simple subtrac
tion. Raising to a power is reduced to a
single multiplication, and extracting a root
is reduced to a single division.
The common logarithmof any numberis
tn$ tfqwer to which 10 must be raised in
order to equal that number.
Therefore, since
1000=
100 =
10 =
1 =
0.1 =
0.01 =
=
=
=
=
=
=
=
IO2
IO1178
101
IO-846
10°
io-1
10-1-845
0.015 = IO-2176
0.001 = io-3
Logarithmic Form
log 100
log 15
log 10
log 7
log 1
log 0.1
log 0.7
log 0.015
log 0.001
=
=
=
=
=
=
=
=
=
2.000
1.176
1.000
0.845
0.000
-1.000
-1.845
-2.176"
-3.000
it will be seen that only the direct powers
of 10 have whole numbers for logarithms;
103
102
101
10°
io-1
io-2
also that the logarithms of all numbers
lying between a power of 10, consist of a
whole number and a decimal. The whole-
numberis called the characteristic, and the
decimal, the mantissa. Since the character
istic serves only to fix the location of the
decimal point in the expression indicated
o.ooi = jo-8
o.oooi = lb-4
by the log, it can be found by inspection
it is true that
log 1000 =
log
100 =
log
10 =
log
1=
log
0.1 =
log 0.01 =
log 0.001 =
log 0.0001 =
Exponential Form
100
15
10
7
1
0.1
0.7
and is not included in the log table. The
following will be helpful:
1. The characteristic of any number
3
2
1
0
-1
-2
-3
-4
greater than 1 is always positive and
is equal to one less than the number
of digits to the left of the decimal.
2. The characteristic of any number less
than 1 is always negative and is ecftial
The common system of logarithms has
for its base the number 10, and is written
logio or more commonly log, sincethe base
to one plus the number of zeros tcl the
decimal.
3. The characteristic of any nunifyer
10 is always implied unless some other base
is specifically indicated. There are formulas
may be determined by expressing the'
number as a power of 10 and using
however which use the natural system of
this power as the characteristic of the
logarithm for that number.
logarithms. This system has for its base the
number 2.718 ... which is represented by
the Greek letter e and is always written
Since only the characteristic of a loga
rithm is ever negative, the mantissa always
being a positive number, it is customary to
write a log containing a negative charac
log 6.
A table of natural logarithms has not
been included in this handbook however,
since the common log of a number is ap
teristic as follows:
proximately equal to 0.4343 times the natu
ral log of the same number. Conversely,the
natural log of a number is approximately
equal to 2.3026times the common log of the
log 0.7 = 1.845,
or, by adding +10 to the characteristic and,
in order to maintain equality, —10 at the
same number.
right of the characteristic,
In observing the following exponential
and logarithmic relationships,
log 0.7 = 9.845 - 10
38
1.5
1.5
1.5
1.5
15
1.5
15
1.5
0.15
0.015
0.0015
X
X
X
X
X
X
IO2
101
10°
10-1
IO"2
IO-3
2
1
0
-1 or 9 - 10
-2orS - 10
-3 or 7-10
figures is required, generally, a three place
table is sufficiently accurate for all practical
purposes. Since the mantissa of a logarithm
represents only the significant figures of any
number, the same mantissa is used for .04,
4, 400, etc., the decimal point being fixed
later by the characteristic. Therefore any
number consisting of 1 or 2 significant fig
ures may be found in the column marked
N, and its mantissa will be found on the
same line in this column headed by 0. For
any number containing 3 significant figures,
locate the first two figures in the N column,
and the third figure in the column headed
Therefore, to find the logarithm of any
number:
1. Write the number as a power of 10,
and put down the resulting exponent
of 10 as the characteristic.
2. Determine the mantissa from the log
tables on page 56, and write this as
a decimal figure following the char
acteristic.
by the corresponding digit. The mantissa
3. If the resulting logarithm has a nega
tive characteristic, change this to the
positive form.
Example: Find the logarithm of .00023:
Since .00623 - 6.23 X 10-3, the char
acteristic is
will be found in this column, on a line even
with the first two digits.
Example:
log
21 = 1.3222
log
2.1 = 0.3222
log 210 = 2.3222
log .0021 = 7.3222 log 213 = 2.32S4
log .0213 = 8.3284 log
3 = 0.4771
log 300 = 2.4771
log .003 = 7.4771 The number corresponding
—3. The mantissa as
shown by the log table is 7945. The
resultant logarithm = 3.7945 or
when written in its positive form,
7.7945 -
10.
To find the log of any number having more
than three significant figures (by interpola
tion) :
1. Determine the characteristic.
take the tabular difference.
10
to a given
place the decimal as indicated by the char
acteristic.
Example: To find the antilog of 3.9138,
look up 9138 in the log table. Its corre
sponding number is 82, or expressed as a
tissa.
Example: Find the logarithm of 54.65.
Since 54.65 = 5.465 X 101, the char
power of 10, equals8.2. A characteristic of
acteristic is 1.
3 means that 8.2 must be multiplied by 103.
Therefore, antilog 3.9138 = 8.2 X 103 =
Next higher mantissa = .73S0
= .7372
8200.
Tabular difference = .0008
Similarly
X .5
Mantissa of 5.465
10
is written "antilog". Example: Since log
of 692 = 2.8401, the antilog of 2.8401 = 692.
Finding the antilog of a number is the
reverse of finding the logarithm. First
locate the mantissa in the log table, and
determine its corresponding number. Now,
4. Find the product of the tabular dif
ference and the digit following the
first three significant figures of the
given number written as a decimal.
5. Add this product to the lesser man
Product
Plus lesser mantissa
10
logarithm is called the antilogarithm, and
2. Find the mantissa corresponding to
the first three significant figures.
3. Find the next higher mantissa and
Next lower mantissa
HANDBOOK
Although a four-place log table is used here,
for purposes where accuracy to 3 significant
Examples:
150
DATA
ELECTRONICS
ALLIED
Antilog 5.9138 = 8.2 X 10s = 82,0000
Antilog 0.9138 = 8.2 X 10° = 8.2
Antilog 7.9138 - 10 = 8.2 X IO"3 = 0.0082
Antilog 9.9138- 10 = 8.2 X 10-1 = 0.82
To find the antilogarithm of a logarithm
.00040
.7372
.7376
'. log 54.65 = 1.7376
39
ALLIED
ELECTRONICS
whose mantissa is not exactly given in the
DATA
Subtraction of logarithms
4.107/ _ 14.107 - 10
6.986\
6.986
table,
1. Find the tabular difference between
the next highest and next lowest man
7.121 11.672 - 10
tissas.
2. Divide this by the difference between
the given mantissa and the next low
5.785 -
est mantissa.
las:
log (a X b) = log a -f log b
4. Place the decimal as indicated by the
given characteristic.
Example: Find the antilog of 1.7376
Next higher mantissa .7380
log (y) = log a- log b
log (a)b
Next lower mantissa .7372
Tabular difference .0008
EXAMPLES
Tabular difference .0004
.. . ..0004
Quotient
of -^^ = .o
Total
accurate as can be determined with a four-
place table. The full answer to this prob
lem is 305.04.
To Divide
Note: When interpolating as shown
above, do not exceed four significant figures
in your answer since interpolated results
from a four-place table are not accurate
beyond this point.
Difference
place table. The product of 224 and 4.29
is 960.96.
Powers: Find 122 by logarithms:
log of 12 = 1.0792
X2
2.1584
The antilog of 2.1584 = 144.
Roots
EXAMPLES:
Addition of logarithms
10
or
2.610
23.196 -
30
bers. However, since the numerical results
of multiplying, dividing, etc., are not
affected by the signs, you can determine the
numerical results by logarithms and later
or
3.196 -
Kind \/U3
log of 343 = 2.5353 v3 = .8451
The antilog of .8451 = 7.
Logarithms of Negative Numbers. Be
cause the logarithms of negative numbers
are imaginary in character, they cannot be
used in computation as with positive num
istic less than 10.
10
10
10
0.6325
accurate as can be determined with a four-
characteristic in the total is greater than 9,
and the notation —10, —20, —30, etc.,
appears after the mantissa, subtract a mul
tiple of 10 from the positive part and add
the same multiple of 10 to the negative
part, so as to make the resultant character
6.328 7.764 9.104 -
961 by 224
log of 961 = 2.9827
log of 224 = 2.3502
The antilog of 0.6325 = 4.29 which is as
Logarithms are added or subtracted like
arithmetical numbers, provided they are
written with positive characteristics. If the
12.610 -
2.4843
The antilog of 2.4843 = 305, which is as
The resultant figure therefore is .5 larger
than the significant figures expressed by the
lesser mantissa .7372 or 546. The sequence
of figures therefore is 546.5
.'. the antilog of 1.7376 = 54.65
7.068
log a
To Multiply
1.24 by 246
log of 1.24 = 0.0934
log of 246 = 2.3909
,.
10
= /; log a
logV«
Given mantissa
.7376
Next lower mantissa .7372
6.326 6.284
10
The relationships of logarithmic opera
tions are expressed by the following formu
next lower mantissa.
2.764
10
5.887
3. Add the resulting quotient to the
significant figures expressed by the
4.304
HANDBOOK
affix the final + or — signs by inspection.
10
40
ELECTRONICS
ALLIED'S
DATA
HANDBOOK
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HANDBOOK
DATA
ELECTRONICS
ALLIED'S
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7F7
7AF7
7G7
7V7
7H7
]7L7
7J7
7B8
6AK8
6U8
J7AL7
(7A7
/7H7
/6AX5
7R7
7E7
J6E5
7S7
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7T7
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/6T5
6K7
(7A7
(7V7
/6AX8
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7E5
7C7
7L7
6SA7
6SD7
/6U5
7B8
(6W4
6U4
7AH7
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J6EA8
)6GHB
*6U8A
45
(7T7
7V7
J7A7
(7H7
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Directly Interchangeable Tubes—(Continued)
Tube
Number
Replace
Tube
Replace
with
Number
with
7Z4
7X6
8AU8A
8AW8A
8AU8A
8AW8A
10
12BT6
10Y
10
10Y
12A
71A
12A8
12K8
12AT6
{12AT6
( 12AV6
12BU6
12BY7
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12AU7
12AU6
J12BD6
12CS6
12AU7
12AT7
12CU6
12AV6
12AV7
12AX4GTA
12AX7
12AY7
12AZ7
12B7
12BA6
12BD6
12BE6
12BF6
12AZ7
12D4A
12AY7
12AX7
12AV7
14A7
j 12AU6
12SY7
12SA7
12BF6
14A7
12B7
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14AF7
14F7
14B6
14E6
14B8
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14E7
14R7
14F7
14AF7
\ 12SJ7
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14J7
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14R7
14E7
14S7
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14W7
/ 12SK7
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12SN7
12SQ7
12SX7
12SR7
46
U4B8
U4J7
U2B7
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17AX4I
17D4
1SC8
19T8
19T8
19C8
(12SG7
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U2B7
14H7
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12SK7
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14B6
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12AV6
12BT6
U2B7
14E6
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12SH7
U4J7
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12SJ7
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14C7
12A8
12L8
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12SA7
12SC7
12CS6
12BU6
12BE6
12J7
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112DQ7
12K7
12K8
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12K7
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12BK6
12BU6
12J7
12SG7
12SQ7
12SR7
12SN7
/ 12R5
12L6GT
with
12SR7
12SW7
12SX7
\ 12BA6
{12AT6
12BK6
12BT6
12BU6
Replace
12AV6
12BK6
12C5/12CU5^ 12CU5
12AT7
Tube
Number
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25A6
25A7
25C6
25L6
5824
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ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Directly Interchangeable Tubes
American to British Tubes
American Tube
Replace with
American Tube
Replace with
Number
British Tube
American Tube
Replace with
Number
British Tube
Number
British Tube
0A2
150C2
0B2
108C1
0D3
150C3
1A3
1A7GT
1AB6
1AC6
UP11
3V4
JDL94
XCF80
6BE7
EQ80
(1D13
4EH7
YF183
6BL8
]DAS0
ECF80
4EJ7
YF184
6BM8
ECL82
DK32
4ES8
XCC189
6BN5
EL85
IDK96
5AR4
GZ34
5AZ4
GZ30
6BQ5
JN709
5V4G
GZ32
6BR5
J65ME
}EM80
J1C3
1C2
JDK92
1AD4
DF62
5Z4G
R52
1FD1
6AB4
EC92
1AN5
DF97
6AB8
1C5GT
DL35
1L4
1M3
DAC32
JDF92
DM71
DF33
UC1
DY87
DL91
UFD9
1S5
JDAF91
1T2
R16
1U4
1X2A
2ER5
3C4
ilF3
}DF91
8D7
6BT4
-(EZ40
(U150
(66KU
6BX6
C6LD12
{DH719
(EABC80
6AK8
6AL3
EY88
6AL5
{6D2
D152
DD6
EAA91
EB91
6AM5
6BY7
6C4
JR19
XC95
UP1
JDL96
EC90
JEZ81
EL34
EM34
17D10
6CH6
) EL821
6CJ5
<62VP
C6F16
(EF41
6CJ6
EL81
6CK5
(67PT
<EL41
6AQ5
(N150
6AQ8
6CK6
6AS6
3EJ7
XF184
6AT6
3Q4
DL95
6AU6
3Q5GT
DL33
6AV6
UP10
S6F19
6F26
EF85
W719
JUU12
6CD7
6AQ4
XF183
{DL92
VZ152
(Z719
6CA7
DF904
<DY80
(64SPT
1EF80
6CA4
6AM6
3EH7
3S4
JEF95
DY86
1S2A
8D5
6BS7
}X719
JDK91
1S4
1T4
6AK5
5DP61
DM70
1N3
1S2
6AJ8
]ECH81
JEL84
6BR7
(63TP
]ECL80
HF2
1N5GT
1R5
(EK90
JX727
4r3L8
1AH5
1H5GT
6BE6
EL83
6CM4
EC86
6CM5
EL36
6CN6
EL38
f9D6
6CQ6
6BA6
< EF92
(VP6
50
^
A
L L I E D ' S
ELECTRONICS
HANDBOOK
DATA
Directly Interchangeable Tubes-(Continued)
American to British Tubes
American Tube
Number
6CS6
6CT7
6CU7
6CV7
Replace with
British Tube
American Tube
Number
Replace with
American Tube
Replace with
British Tube
Number
British Tube
16A8
PCL82
16AQ3
XY88
7B7
W149
SEAF42
7C6
DH149
J62TH
7DJ8
PCC88
I ECH42
7S7
X148
S6LD3
62DDT
DH150
EBC41
7Y4
U149
EH90
]WD150
8BQ5
XL84
9A8
6CW5
EL86
EM81
6DA6
EF89
9AK8
PABC80
6DC8
S6FD12
9AQ8
PCC85
\ EBF89
6DJ8
ECC88
6DL5
EL95
6DR8
EBF83
6DS8
ECH83
6DX8
ECL84
EF183
6EJ7
EF184
(PCF80
\ 121VP
12AC5
JUF41
12AH8
20D3
12AT6
HBC90
JB329
\ ECC82
12AU7
EF97
6ES8
ECC189
6ET6
EF98
6FG6
EM84
6FY5
EC97
6KG8
ECF86
6J6
ECC91
12C8
VP12D
6L6
EL37
12S7
\ UAF42
6N8
<WD709
IZD152
HBC91
12AV6
{6L13
<B339
12AX7
(ECC83
12BA6
HF93
12BE6
HK90
6U8
ECF82
6V4
EZ80
6X4
EZ90
('EZ35
6X5G
H41TH
14K7
{ UCH42
14L7
S10LD3
141DDT
DH142
UBC41
15A6
(N153
<N309
(PL83
30P18
15CW5
CN154
{N329
(30L1
7AN7
<(B319
} UCH81
19X3
S19U3
JPY80
19Y3
<{PY82
21A6
(-N152
<N3S9
25E5
PL36
31A3
i311SU
JUY41
35W4
HYSO
38A3
JUY85
t10C14
H9SU
45A5
(X142
<U70
\U147
j PY81
19D8
\ WD142
(EBF80
EY86
HCC85
JPY83
\ ECC81
EC95
6S2
JUBF80
17Z3
S B152
12AT7
6ER5
EY81
S 171DDP
PCF82
9U8
6ES6
6R3
17EW8
(30C1
< LZ319
•6DA5
6EH7
17C8
16A5
(PCC84
(PL82
51
45B5
(U192
(PL81
S U381
(-451PT
{N142
(UL41
\ 10P18
(UL84
50BM8
UCL82
50C5
HL92
807
QV05-25
6267
5 EF86
JZ729
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Directly Interchangeable TV Picture Tubes
Tube
Number
Replace
7NP4
Tube
Number
Replace
Tube
Replace
with
Number
with
7WP4*
12UP4
12UP4A
7WP4
7NP4
12VP4
12VP4A
8AP4
8AP4A
14AUP4
14AWP4
8AP4
14AWP4
14AUP4
14BP4
14BP4A
14CP4
14BP4A
8AP4A
10ABP4
wtth
10ABP4A
16GP4C
16GP4
16GP4A
16GP4B
16HP4
16HP4A
16HP4A
16HP4
16JP4
16JP4A
14EP4
16JP4A
16JP4
14CP4
14BP4
14BP4A
14EP4
16KP4
16KP4A
16RP4
16KP4A
16TP4
14EP4
14BP4
14BP4A
16LP4
16LP4A
16ZP4
16LP4A
16LP4
16ZP4
10ABP4B
10ABP4C
10BP4
10BP4A
10FP4*
10BP4A
10FP4A*
10EP4
10CP4
10FP4
10FP4A
10MP4
10MP4A
14CP4
14FP4
14BP4*
14BP4A*
10MP4A
12KP4
12KP4A
12LP4
12LP4A
12LP4A
12QP4
12KP4*
12KP4A*
12LP4
12LP4C
12QP4A
12JP4*
12QP4A
12RP4
14CP4»
14EP4*
10MP4
12RP4
16MP4A
16MP4A
16MP4
16QP4
16XP4
16RP4
16KP4
16KP4A
15CP4
16CP4
16AP4
16AP4A
16AP4A
16AP4
16CP4
15CP4
16DP4
16DP4A
16DP4
16DP4A
16HP4*
16KP4
16HP4A»
16KP4A
16TP4
16RP4A
16RP4
16JP4*
12JP4*
16JP4A*
16MP4*
16SP4
16SP4A
16MP4A*
16SP4A
16SP4
16EP4
16EP4A
16EP4B
16VP4
16YP4*
16WP4
16SP4*
16GP4
16GP4A
16SP4A*
16GP4B
16WP4A*
12QP4
12QP4A
12TP4
,
16MP4
12KP4**
12KP4A**
12RP4*
12VP4*
12VP4A*
♦Remove ion trap.
•Connect external connector to chassis
52
HANDBOOK
DATA
ELECTRONICS
ALLIED'S
Directly Interchangeable TV Picture Tubes—(Continued)
Tube
Replace
Tube
Replace
Tube
Replace
Number
with
Number
with
Number
with
16WP4A
17CBP4
16SP4
16SP4A
16XP4
17CKP4
17BUP4
19DP4
19DP4A
17BRP4
19DP4A
19DP4
19EP4
19JP4
19FP4
19DP4*
17BZP4
16QP4
17CAP4
16ZP4
16LP4
17CP4
17CP4A
17CP4A
17CP4
19JP4
19EP4
17BP4B
17DJP4
17DCP4*
20CP4
20CP4A
17BP4C
17JP4
17FP4
17FP4A
17FP4A
17FP4
17HP4
17HP4A
16LP4A
17AP4
17ATP4
17BP4A
17ATP4A
17AVP4
17AVP4A
19DP4A*
20CP4C
20DP4
20DP4A*
20CP4A
20CP4B
20CP4C
•17HP4B
20DP4A
17AVP4
17AVP4A
17HP4A
17ATP4
17ATP4A
17HP4
20CP4C
17HP4B
20CP4
20CP4A*
20DP4
17BP4
17JP4
17AP4*
17BP4A*
17BP4A
17BP4B
17BP4B*
17BP4C
17BP4C*
17JP4*
17BP4A
17AP4
17LP4
20CP4C
20DP4A*
20DP4
20CP4
20CP4C
20CP4A*
20DP4A*
17LP4A
17VP4
17BP4B
17BP4C
17LP4A
17VP4
17QP4
17UP4
17RP4
17HP4
20FP4
17BP4B
17BP4C
17BRP4
17JP4
17JP4
17HP4A
17CBP4
17BZP4
17BRP4
20HP4
20HP4A*
20LP4*
17UP4
17QP4
17VP4
17LP4
20HP4B
17BRP4
17BZP4
19AFP4
19AUP4
19AP4
19AP4A
19AP4B
21ACP4
21ALP4
19AP4D
♦Remove icn trap.
s.
53
21ACP4A
21AMP4
21AMP4A
19AP4C
17CKP4
20HP4A*
20LP4*
17LP4A
17CAP4
17CKP4
•Connect exte nal connector to chass
20JP4
20HP4B
17SP4
17CAP4
20GP4
17KP4
17BZP4
17CAP4
17CKP4
17BUP4
20GP4*
20JP4
17JP4
21ALP4A
21ALP4B
21ATP4A
21BTP4
L L I E D
ELECTRONICS
DATA
HANDBOOK
Directly Interchangeable TV Picture Tubes—(Continued)
Tube
Number
Replace
21AMP4
21AMP4A
21ACP4
21ACP4A
21ATP4
21AUP4
21AVP4
with
21ALP4
21ALP4A
21ALP4B
21ATP4A
21ATP4B
21BTP4
21AUP4A
21AVP4
21AVP4A
21AVP4A
Replace
Tube
Number
with
Tube
Number
Replace
with
21CZP4
21DEP4
24AHP4
24ALP4
21DEP4
21DEP4A
21CZP4
24AJP4
24ATP4
24ALP4
24AHP4
21DKP4
21DKP4A
24ANP4
24DP4
24DP4A
21EP4A
21EP4B
24YP4
24AEP4*
21FP4
21FP4A*
21KP4
21KP4A*
24ZP4*
24AP4
24AP4A
24AP4B
24AP4B
24AP4
21FP4A
21KP4A
21KP4
21KP4A*
21WP4
21WP4A
21YP4
21YP4A
24ADP4
21ZP4
21ZP4A*
24TP4
22AP4
22AP4A
22AP4A
22AP4
24AP4A
21AVP4B
21AUP4
21AUP4A
21AYP4
21BAP4
21XP4
21XP4A
21BNP4
24CP4
21BDP4
21BDP4
21BCP4
21BNP4
21BAP4
24AJP4
24CP4A
24QP4
21CVP4
21BCP4
24ATP4
23CAP4
23TP4
23ANP4
23ATP4
23ATP4
23ANP4
24VP4
24VP4A
24DP4
24DP4A
24ANP4
24YP4
24AEP4*
24ZP4*
21CVP4
21BTP4
21ALP4
21ALP4A
21ALP4B
21ATP4
21ATP4A
21ATP4B
24QP4
24ADP4
24CP4
23KP4
23KP4A
24CP4A
23XP4
23YP4
24TP4
24VP4
23YP4
23XP4
24VP4A
24TP4
24ADP4
21CBP4
21CBP4A
21ZP4
23YP4
24CP4
21CDP4
21CDP4A
24ADP4
24CP4
24CP4A
24QP4
24VP4
21ECP4
21ECP4A
24QP4
24VP4A
21CVP4
21BAP4
24TP4
24VP4
24VP4A
24CP4A
21BNP4
'Connect external connector to chassis.
♦Remove
54
24VP4
24VP4A
24ADP4
Ion Trap.
~\
DATA
ELECTRONICS
ALLIED'S
HANDBOOK
Directly Interchangeable TV Picture Tubes (Continued)
Tube
Replaces
Number
with
Tube
Number
24VP4 (cont.) 24CP4
24XP4
24CP4A
24QP4
24ZP4
24ADP4
24CP4
24CP4A
27EP4
24TP4
24VP4
24VP4A
24VP4
24CP4A
24AEP4.*
24ANP4
24DP4
24DP4A
24QP4
24ZP4*
24YP4
24ADP4
24CP4
Replaces
Tube
Number
with
24QP4
24TP4
24VP4A
Replaces
with
24AEP4
27GP4
27NP4*
27RP4*
27GP4
1
27EP4
27NP4#
27RP4*
27NP4
27RP4
27RP4
27NP4
27SP4
27UP4
27UP4
27SP4
♦Remove ion trap.
'Connect external connector to chassis
Greek Alphabet Designations
Name
Capital
Commonly used to designate
Lower Case
Alpha
A
Beta
B
fi
Gamma
r
7
a
Delta
A
a
Epsilon
E
c
Angles. Area. Coefficients
Angles. Flux density. Coefficients
Conductivity. Specific gravity
Variation. Density
Base of natural logarithms
Zeta
z
r
Eta
H
V
Theta
e
e
Impedance. Coefficients. Coordinates
Hysteresis coefficient. Efficiency
Temperature. Phase angle
Iota
i
i
Unit vector.
Kappa
K
K
Lambda
A
X
Dielectric constant. Susceptibility
Wave length
Mu
M
M
Micro. Amplification factor. Permeability
Nu
Xi
N
V
Reluctivity
H
o
s
T
Pi
n
Rho
p
P
Sigma
s
ff
Tau
T
T
Upsilon
T
Phi
*
Chi
X
X
Psi
*
*
Omega
$2
CO
*P
Co-ordinates
3.1416 (Ratio of circumference to diameter)
Resistivity
Sign of summation
Time constant. Time phase displacement
Magnetic flux. Angles
Electric susceptibility. Angles
Dielectric flux. Phase difference
Capital, ohms. Lower case, angular velocity
55
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Pilot Lamp Data
Maximum Size
Bulb
Silhouette
No.
m
° \SJ c
rW,
Tvn)
'
T Nt=kr C
Bulb
(See Chart Below)
B-3'/i
m*
S.C. Flange
(Miniature)
W
w
%•
Q-3'/i
2-Pin
(Miniature)
i_W_i
r|T
Base
%'
%'
W
T-3V4
Screw
(Miniature)
Bulb
Lamp
Type
Numbers
Small
Round
Small
Round
Tubular
PR2
PR3
PR4
PR6
PR12
12
40
41
42
46
48
1892
KA-»j
Bayonet
jjgT
%'
%'
w
%'
W
«•'
%'
B
w
1%'
%'
%'
W
%'
W
W
%•
T-3V4
Q-3Vi
Q-3%
G-4'/4
Q-5
TL-3
(Miniature)
Tubular
Screw
(Miniature)
Small
Round
Bayonet
(Miniature)
Small
Round
56
50
Bayonet
Large
(Miniature)
Round
55
57
Bayonet
(Miniature)
Large
1458
Round
Screw
(Miniature)
L
43
44
45
47
49
1490
1891
Pinched
Round
112
222
ELECTRONICS
ALLIED'S
HANDBOOK
DATA
Pilot Lamp Data (Cont'd)
Rating
Lamp
Bead
Base
Bulb
No.
Color
(Miniature)
Type
Volts
Amps.
B-3'/,
B-3'/j
B-3'/2
B-3'/i
B-3'/2
2.4
3.6
2.3
2.5
5.95
6.3
6-8
2.5
0.50
Flashlights
0.50
Flashlights
Flashlights
PR-2
Blue
PR-3
Green
Yellow
Flange
Flange
Flange
Brown
Flange
PR-4
PR-6
PR-12
12
Flange
White
40
41
Brown
White
Screw
42
43
44
45
Green
White
Blue
Screw
46*
47
48
49
50
51*
55
57
G-3'/2
T-3V4
T-3'/4
2-Pin
Screw
T-3'/4
T-3'/4
Bayonet
Bayonet
Bayonet
•
Blue
Brown
Screw
Pink
Pink
Screw
White
Screw
White
White
White
Pink
Bayonet
T-3'/4
T-3'/4
T-3'/4
Bayonet
T-3'/4
T-3'/4
Bayonet
G-3'/2
G-3'/2
G-4'/,
G-4'/2
Bayonet
Bayonet
Screw
Screw
Auto-Radio Dials; Parking Lights
0.25
0.15
Dials
Dials
0.23
Auto Radio Dials
0.12
Auto Panel Lights
Pink
Bayonet
T-3V4
T-3Vj
White
Screw
T-3'/j
14
Bayonet
Dials and Tuning Meters
Dials and Tuning Meters
0.4
0.24
0.22
0.25
White
Bayonet
1458
Dials
Dials
Dials
*
6-8
14
1892
TL-3
G-5
Dials
0.5
0.25
1490
1891
White
TL-3
Flashlights
Flashlights
0.50
0.15
0.15
0.5
2.5
6-8
3.2
6-8
6-9
2.0
2.0
6-8
6-8
1.1
2.2
20.0
3.2
14
112
222
0.27
0.30
3.2
T-3'/4
Used For
|
Dials
Dials and Tuning Meters
0.25
Dials
0.15
0.06
Battery Set
Battery Set
Auto-Radio
Auto-Radio
0.06
0.2
0.2
Dials
Dials
Dials; Flashlights
Dials; Panel Boards
Auto Radio Dials
Flashlights
Flashlights; Soldering Guns
•White in G.E. and Syivania; Green in National Union Raytheon and Tung-Sol.
{0.35 in G.E. and Syivania; 0.5 in National Union Raytheon and Tung-Sol.
•Have frosted bulb.
Neon Glow Lamps
High Brightness
Nominal
Current
in Ma.
Hours of
Maximum
Lamp
Average
Overall
Number
Useful Life*
Length
NE-2H
NE-2J
25,000
Va'
2* Wire Term.
1.7
S.C. Mid. Flange
1.7
w
1" Wire Term.
1.7
1.2
NE-2P
NE-51H
25,000
25,000
25,000
Base
Min. Bay.
Circuit
Nominal
Volts,
Watts
AC or DC
110-125 V.
110-125
110-125
110-125
110-125
1/5
1/5
'1/5
1/7
Standard Brightness
NE-2
NE-2D
NE-2E
NE-2M
NE-7
NE-17
NE-21
NE-30
NE-34
NE-42
NE-45
NE-48
NE-51
NE-56
NE-57
25,000
25,000
25,000
25,000
7,500
7,500
7,500
110-125
1/17
110-125
110-125
1' Wire Term.
0.5
0.6
0.6
0.5
V/t' Wire Term.
2.0
110-125
110-125
110-125
110-125
110-125
110-125
110-125
110-125
110-125
220-250
110-125
220-250
110-125
1/15
1/15
1/17
V4
Va
Va
\W
1' Wire Term.
Va'
%•
V/a'
2' Wire Term.
%*
ifv
Wi'
2Va'
S.C. Mid. Flange
D.C. Bay
S.C. Bay
2.0
2.0
12.0
10,000
10,000
3V§*
Med. Screw
18.0
10,000
3'%"
D.C. Bay
30.0
2.0
2.0
0.3
7,500
Med. Screw
1%'
Cand. Screw
7,500
\w
15,000
m'
D.C. Bay
Min. Bay
10,000
7,500
2Va'
Med. Screw
NE-58
7,500
NE-7 9
10,000
1%'
Cand. Screw
1%'
Cand. Screw
2'
D.C. Bay
5.0
2.0
2.0
12.0
110-125
1
2
3
Y*
Va
1/25
1
Va
V*
1
Argon Glow Lamps
AR-l
AR-3
AR-4
AR-9
1,000
150
150
50
VA'
1%'
114s
11V
Med. Screw
Cand. Screw
D.C. Bay
1' Wire Term.
•On A.C. unless otherwise noted. D-C life is approximately 60% of A-C values.
57
18.0
3.5
3.5
0.3
110-125
110-125
110-125
110-125
2
Va
Va
1/25
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Interchangeable Batteries
Ray-OBurgess
1
10308*
120
17GD60
2
2F
2F4
2F4L
2D
2FBP
Evereody
935-635
W363F
835
Neda
14
716
759
950
m
W353
718
747
720
W354
n
l
16
18
700
2N6
2R
2TXX40
2U6
20F
246
950
W370
216
740
20F2
21R
210
21308*
2156
X125
964
1050
W365F
766T
220
230
2308*
2370ST
2370PI
850
A100
W364F
761T
771
4D4
4F
4FH
4FL
4F2H
274
742
735
1602
13
412
1604
719
720
20
7i5
702
Vac
Ray-O-
1LP
VS035
5930C
110LP
AB82
2LP
VS127
8FL
8R
9R
VS022
VS036
192PX
698P
698PL
122P
192S
VS141
VS010
VS011
VS069
VS101
1602
2LP
VS305
VS036
1604
P9203
VS312
VS024
P9403
8R
3LP
5830C
2215C
VS025
VS236
VS157
VS137
210LP
i3"
723
712
718
5230C
423S
P231W
VS336
VS126
VS130
VS030
W357
1400
4
900
12
901
194S
P94L
398C
4F4H
4F6H
4F6H
4GA42
4SD60
706
715
716
W366
758
902
903
904
407
414
902
903
904
AB944
AB85
VS103
VS139
4TZ60
4166
422
432
6156SC
729
763
750
751
778
425
710
704
705
708
AB333
2415S
342
443
2515C
VS064
VS102
VS134
VS142
VS131
5166PI
6308
532
5360
5540
768
W376
703
721
709
706
714
713
2515P
5530S
453
531R
755S
VS031
VS112
VS133
6F
743
196P
6 Ign.-S
VSC07
VS0065
6RR
6 Tel.-C
AB64
VS042C
VS054
400
198P
781
773
Burgess
RCA
6 Ign.
6 Ign.
6lnd.
6 Tel.
6TA60
6 Ind.
6GL
W369
5
905
911
906
410
7
8F
912
741
24
17
♦Available with plug-in terminal also.
i94P
VS004
VS106
VS005
VS138
Vac
RCA
21
23
920
10338
A30
B3RT
B5
B30
C5
W359
702
713
484
717
206
P430
VS014
8"
P551
P5303
P751
VS129
VS012
VS065
D3
D5
D6
F2BP
F2RT
726
707
276
W352
704
423PX
26
VS072
VS315
VS306
VS100
F3
F4A50
F4BP
F4H
F4PI
736
W368
510S
409
744
3
411
915
908
F4SC
F6A60P
6FA60P
G3
G5A42
510F
753
757
746
W367
917
401
406
7
408
G6B60
G6M60
H133
H233
752
754
E133
E233
El
400
402
1304
1300
1100
1103
1101
K10
E9
E12
E400
E401
417
K15
K20
K45
M30
420
430
457
482
Hg-9
Hg-12R
Hg-400R
Hg-401
VS021
Neda
745
960P
1015E
815
799
Hg-IR
VS140
VS053
Eveready
N
710LP
207
9
19
26
1603
701
6
1603
392S
P93A
AB327
941SC
941
P694A
941C
AB994
AB909
P83A
AB-794
AB-9'95
AB-878
VS067
VS040S
VS040C
VSC09
VS019
VS058
VS002
VS038
VS047
VS018
VS149
VS400
VS143
15M
VS313
VS144
VS145
VS401
202
910
NSW45
P7830
716
VS082
VS013
VS073
204
1600
211P
211M
214
4390
1600
NW45
946
214
VS090
VS300
VS218
VS216-15
VS219
641
AB326
7CD5P
AB775
431
VS039
VS119
1106
1102
224
225
226
203
477
S461
S6D60
T5
T5Z50
T5Z50P
1461
776
W360
755
785
907
415
10
403
T6Z60
T6Z6QP
U10
U1S
756
756P
411
412
405
428
208
215
479
VS008
VS070
41
N60
P6
P45
P45M
POO
490
226
igip
VS028
VS029
58
431
AB601
510P
215
VS050
VS060
VS057W
VS059
VS083
VS084
>
ALLIED' S
ELECTRONICS
DATA
HANDBOOK
Interchangeable Batteries—(Continued)
Ray-O-
Ray-OBurgess
Eveready
U16PF
U20
U200
U30
W2QPI
412
413
493
W30PI
XX9
XX15
XX22
XX30
733
239
425P
433P
455
XX30PI
415
Neda
210
722
213
1900
201
Vac
915
520P
5200
530CUH
99917
N30P
1900
PN15
PN22
930
Burgess
RCA
VS085
VS093
VS086
VS304
VS055
PN30F
455P
Eveready
Neda
200
212
227
RCA
Vac
4367
4375
69N
10P
515P
VS016
VS217
XX45
XX50
XX69
Y10
Y15
467
437
W361
504
505
Y20
Y20S
Z
Z4
Z30
506
507
915
is
724
2
7R
67R4
738
205
57R30P
VS034
VS068
VS015
Z30NX
W350
711
57R30S
VS114
20P
Interchangeable Mercury Transistor Radio Batteries
Burgess
Eveready
Matlory
RCA
P9
VS-313
TR-133
P133
VS-149
E146
TR-146
P146
VS-312
E164
TR-164
E9
ZM-9
E9N
DM-9N
H133
E133
H146
H164
HG9
Philce
Zenith
Z9
Z146
VS-164
,
TR-175
VS-309A
H177
E177
TR-177
H233
E233
TR-233
E42
RM-42
HQ401
E401
RM-401
HQ630
E630
RM-630
P630
VS-147
HQ640
E640
RM-640
P640
VS-150
2U6
216
M-1604
P696
VS-400
VS-401
VS-312
59
216
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Resistor Color Code
EIA STANDARD RS-172
_g
®<£>®
lh
MILITARY STANDARD MIL-R-11C
A
B
C
—\ (*>(§>€•.—
0
—MQB ® H—
i:^:^S^^:^
1st Digit
2nd Digit
Multiplier
Tolerance
A
B
C
D
0
1
2
3
0
1
2
3
4
5
6
7
8
9
Color
Black
Brown
Red
Orango
Yellow
Green
4
S
6
7
8
Blue
Violet
Gray
White
Gold
Silver
No Color
9
—
—
—
—
1
10
100
_.
1,000
10,000
100,000
1,000,000
—
—
—
10,000,000
100,000,000
—
—
—
—
± 5%
±10%
0.1
0.01*
±20%
•EIA ONLY. —
—
—
—
—
MILITARY (MIL): Same as EIA with the
INSULATION CODING
EIA: Insulated resistors with axial leads
addition of: Noninsulated resistors with ra
are designated by a background of any color
dial leads designated by a black background
except black. The usual color is natural tan.
color or by a background the same color as
Noninsulated resistors with axial leads are
the first significant figure of the resistance
designated by a black background color.
value.
MAC* HUMS
Mica Capacitor Color Code
MILITARY STANDARD
MIL-C-5B
Digits of Capacitance (utf)
Tolerance
Multiplier
Color
Black
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
Gold
Silver
A
B
C
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
S
6
1
10
100
—
—
Temperature
Coefficient
Maximum
million per °C)
Capacitance
Drift
(•porta per
7600
*0.5%
7500
D
•MOO
* (0.05% +0.1 «if)
—
—
—
—
—
—
± 5
±10
Maximum Inchet
Long
(megohms)
Not specified
+70
—
—
Minimum
Insulation
Resistance
*200
+100 -20
—
—
—
—
VOLTAGE RATING
Not specified
F
F
—
—
(Indicated by dimensions rather than color coding)
B
E
—
—
0.1
0.01
C
*0.3%
-(0.1% +0.1 wrf)
2
—
—
DESCRIPTION OF CHARACTERSDC
Charac
teristic
B
C
D
E
—
±
—
8
9
—
±20
1,000
7
_
&
Characteristic.
See table below
£
7600
7500
7500
Thick
CM
Capacitance
imtf)
5-510
Style
"4a
»/6
'/*
15
»4
»4j
T/6
20
V4t
*%
»%
»%
'/*
%
»%
H*
"A
35
«Wk
»«
40
VA
60
Wide
Rating
(od-c)
300
6-510
560-1000
500
300
25
51-1000
500
80
560-3300
500
3600-6200
500
300
6800-10,000
3300-8200
9100-10,000
500
300
N,
HANDBOOK
DATA
ELECTRONICS
ALLIED'S
Mica Capacitor Color Code
EIA STANDARD RS-153
WHITE MEANS
A
MICA
Digits of Capacitance (mmO
Multiplier
Color
B
C
Black
Brown
Red
0
0
0
1
1
10
2
100
Orange
3
4
5
6
3
4
10,000
1
Yellow
Green
Blue
Violet
2
3
4
5
6
7
7
8
Gray
—
—
—
—
—
D
E
—
5
—
—
—
—
—
—
—
—
9
A
B
C
2
3
±
—
8
—
± 20
±
1
±
±
1,000
5
6
7
8
9
9
White
Gold
Silver
See table below
F
A
1
2
Characteristic—
Tolerance %
D
—
—
—
—
0.1
—
—
—
± 10
0.01
—
•or ± 1 mm', whichever Is greater.
VOLTAGE RATING
DESCRIPTION OF CHARACTERISTIC
Charac
Temperature
Coefficient
Maximum
Capacitance
(parts per
teristic
Drift
million per °C)
(Indicated by dimensions rather than color codinK)
Maximum Inches
Minimum
Insulation
(megohms)
A
*1000
*(5% +l«-f)
3000
B
*500
*(3%+1mm0
6000
C
*200
*(0.5% +0.5M/-0
6000
D
*100
6000
E
+ 100 -20
*(0.3% +0.1 wO
*(0.1% +0.1 wif)
Long
Wide
Thick
"4
"-{,
%
20
"A
J6
25
».<*
%
30
m
u*
*%
6000
Uti
Rating
Capacitance
(f»f)
Style
Resistance
(vd-c)
560-1000
500
300
5-1000
1100-1500
500
300
470-6200
Over 6200
500
300
3300-6200
500
300
5-510
*%
H
35
"4
"/6
40
Over 6200
100-2400
2700-7500
1000
Over 7500
300
500
Mica Capacitor Color Code
Obsolete Style
BLANK
f®®ov
©@®
(FRONT VIEW)
®(§)®(D
(BACK VIEW)
Voltage Rating
Digits of Capacitance (/imO
Dot Color
Black
Brown
C
Multiplier
Tolerance %
D
E
A
B
0
0
0
1
1
1
1
10
±20
±
1
± 2
± 3
(vd-c)
F
—
100
200
Red
2
2
Orange
3
3
3
1,000
Yellow
Green
Blue
4
4
4
10,000
±
4
5
6
5
5
100,000
±
5
500
6
6
1,000,000
±
6
600
7
8
7
7
10,000,000
±
±
±
±
7
8
9
5
700
Violet
Gray
White
Gold
Silver
No Color
8
9
9
—
—
—
—
100
2
8
100,000,000
9
1,000,000,000
0.1
0.01
—
—
—
61
300
400
800
900
±10
1,000
2,000
±20
500
A L L I E D ' S
ELECTRONICS
DATA
HANDBOOK
Ceramic Capacitor Color Code
EIA STANDARD RS-198
MILITARY STANDARD JAN-C-20A
Proposed MH-C-20C
A>
3-Dot Disc Capacitors
(RETMA ONLY)
(Voltage rating It always 500 v.,
tolerance is always —0.)
4F
5-Dot Disc Capacitors
(EIA ONLY)
(Voltage rating is
always 500 v.)
3-Dof Button Capacitors
(EIA ONLY)
# ^ W3?
Feed Through Capacitors
(EIA ONLY)
B
High Capacity Tubular*
(Insulated or Non-Insulated)
C
A
4. &
• I I 11
t
t
E
F
EB
Color
Orange
Yellow
Green
Blue
Violet
Gray
B
C
D
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
D
TT
•TTTTTTm
7
8
Stand-Off Capacitors
(EIA ONLY)
Tubular Capacitors
(Old RMA)
Digits of
Capacitance Wf)
1
Tubulars
-C
Tubular Capacitors
(Voltage rating Is always 500 v.)
Black
Brown
Red
Temperature Compensating
Tolerance
F
Multiplier 10/tpf or Over 10
E
less (jtftf) MMf (%)
1
10
100
±2.0
±0.1*
—
—
—
—
±0.5
—
—
—
—
0.01
±2
±2.5*
—
1,000
10,000*
±20*
±1
±5
—
—
±0.25
—
Temp. Coef. A
(Parts per million per °C.)
EIA
MILITARY
0
— 33
— 75
—150
—220
—330
—470
—750
0
— 30
r- 80
—150
—220
—330
—470
—750
+150 to
+ 30
—1500
White
9
9
9
0.1
±
1.0
±10
+100 to
+330*
—750
+100
Gold
* EIA only
62
>
ELECTRONICS
ALLIED'S
HANDBOOK
DATA
Paper Capacitor Color Code
MILITARY STANDARD MIL-C-91A
(Commercial codes are same except as noted)
Tubular Capacitors
F
Digits of
Capacitance (/n/t*f)
Color
Black
Brown
Red
Orange
Yellow
Green
Blue
Violet
s
Gray
White
Gold
Silver
A
B
0
1
2
3
4
5
6
7
8
9
0
0
C
Rectangular Capacitors
(Commercial Only)
Tubular
Temp. Rating
°Cand
Characteristic
F
Multiplier
%
Voltage Rating
(v d-c)
C
D
E
Tolerance
1
10
100
±
1,000
10,000
±
1
2
3
4
5
6
7
8
9
20
—
30
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
±
85-A
85-E
—
100
200
300
400
—
—
—
—
500
—
600
700
800
—
—
—
900
—
1,000
10
—
—
—
TYPOGRAPHICALLY MARKED
VOLTAGE RATING FOR
RECTANGULAR CAPACITORS
TUBULAR CERAMICS
(Indicated by dimensions rather than colorcoding)
Maximum Dimensions
(inches)
Style
Length
Width
Thick
Voltage
CN
Capacitance
GW)
1000
400
20
2000-6000
200
120
22'
2000-3000
6000-10.000
800
600
30
1000-2000
3000
6000-10.000
20,000
120
TEMPERATURE
COEFFICIENT
(vd-c)
ness
CAPACITANCE (MMF.)
SK
*Kt
*%
"4
*K
H*i
'A
»*
%6
10,000
20,000
TOLERANCE
400
300
120
400
TOLERASCE
JAN
3000
*K
IX
1H6
s*6
"^
35
4Ki
»/6
41
**A
•*6
42
6000-10,000
20,000
*K
'%
10 ntf
or Less
600
10,000
20,000
30,000
400
C
± 0.25 mm/
120
D
± 0.5
niif
1000-6000
1000
600
400
300
120
F
± 1.0
ittif
G
± 2.0
imf
10,000-20,000
30,000
50.000
Over
10 vwf
300
20,000-30,000
50,000-100,000
1000
600
400 -
200,000
120
10.000
l»/6
LETTER
3000-6000
100,000
43
800
600
300
J
63
<fc. 1%
±
2%
±. 5%
K
± 10%
M
±20%
A
L L I E D ' S
ELECTRONICS
DATA
HANDBOOK
EIA Color Codes
The color codes on the preceding and two
following pages are used by most radio and
instrument manufacturers in the wiring of
their products, and by parts manufacturers
for identifying lead placement or resistor and
capacitor values, ratings, and tolerances.
These have been included for whatever help
they may provide in identifying parts and
PRIMARY
NOT TAPPED
leads when trouble-shooting. Since all manu
facturers do not use these codes, however, due
caution must be observed to determine whether
or not the set, instrument, or part under ex
amination does or does not follow the code
colors given here. A quick check with a volt
meter, ohmmeter, or continuity meter is usu
ally all that is needed to establish this fact.
PRIMARY
TAPPED
HIGH
VOLTAGE
BLACK
BLACK
(COMMON)
YELLOW
BLACK - YELLOW
RECTIFIER
FILAMENT
YELLOW- BLUE
YELLOW
BLACK
BLACK-RED
GREEN
GREEN-YELLOW
AMPLIFIER
y
FILAMENT
NO. I
GREEN
Power Transformer
BROWN
BROWN-YELLOW
RED
AMPLIFIER
^
A +
FILAMENT
NO. 2
BROWN
BLACK
A -
SLATE
io
o
BLUE
YELLOW
Bt
o
SLATE-YELLOW
B -
C +
Battery
Cable
ORANGE
C INTERMEDIATE
GREEN
C -
64
FILAMENT
NO. 3
SLATE
WHITE
B +
INTERMEDIATE
BROWN
AMPLIFIER
!•
ALLIED'S
ELECTRONICS
DATA
EIA Color Codes—(Continued)
c
o
u
0)
c
c
o
U
51
"O
o
o
0)
a
o
a.
65
HANDBOOK
ROWN
Speaker Lead Color Codes—(Continued)
OUTPUT
TRANSFORMER
BLUE OR
BROWN
§
OUTPUT . TRANSFORMER
fe
FIELD COILS
BLACK
&
EX
RED
SLATE
ft
VOICE
COIL
BLACK
HIGH-RES.
FIELD
B
YELLOW
a
a
GREEN
m m) t
V
OREEN
RED
BLACK a
YELLOW
LOW-RES.
FIELD
REO
RED
YELLOW a
REO
Audio & Output Transformers
l-F Transformers
GRID
OR DIODE
GREEN-8LACK
black
GRI
PLATE
•HIGH
MOVI
-*-
RET
-*- LOW
MOVI
FULL WAVE
DIODE
•
GRID OR OIODE
RETURN,AVC,
OR GROUND
pi,..,.,-* , BLUE OR BROWN
"-**'=•
GREEN OR YELLOW
(START)
(START)
* FOUND ONLY ON PUSH-PULL PRIMARY OR SECONDARY W
ALLI ED'S
ELECTRONICS
DATA
HANDBOOK
Abbreviations and Letter Symbols
*
Many of the abbreviations given are in lower-case letters. Obviously, however, there
will be occasions such as when the abbreviations are used in titles where the original word
would havebeencapitalized. In thesecases, the abbreviation shouldbe similarly capitalized.
A two-word adjective expression should contain a hyphen.
Abbrevi
Admittance
Y
Alternating-current (adjective) —
Alternating current (noun)
a-c
Ampere
a
Angular velocity (2n/)
Tenn
ation
Term
a.c.
03
Abbrevir
ation
Low-frequency (adjective)
Low frequency (noun)
Magnetic field intensity
Megacycle
Megohm
1-f
I.f.
H
Mc
Mn
Antenna
ant.
Meter
m
Audio-frequency (adjective)
Audio frequency (noun)
a-f
Automatic volume control
a.v.c.
Automatic volume expansion
Capacitance
Capacitive reactance
a.v.e.
Microampere
Microfarad (mfd)
Microhenry
Micromicrofarad (mmfd)
pa.
fit
/xh
jujuf
C
Microvolt
/*v
Xc
Microvolt per meter
juv/m
cm
Microwatt
juw
c.w.
Milliampere
Millihenry
ma
mh
I,i
Millivolt
mv
Millivolt per meter
mv/m
Milliwatt
Modulated continuous waves
mw
m.c.w.
M
Centimeter
Conductance
Continuous waves—
Current
a.f.
G
Cycles per second
Decibel
db
Direct-current (adjective)
Direct current (noun)
d-c
d.c.
Mutual inductance
Double cotton covered
d.c.c.
Ohm
tt
Double pole, double throw
Double pole, single throw
d.p.d.t.
d.p.s.t.
Power
P
Power factor
p.f.
Double silk covered
d.s.c.
Electric field intensity
E
Radio-frequency (adjective)
Radio frequency (noun)
r-f
r.f.
Reactance
Resistance
X
R
Revolutions per minute
Root mean square
r.p.m.
r.m.s.
Electromotive force
e.m.f.
Frequency
/
Frequency modulation
f.m.
Ground.
gnd.
Henry
h
Self-inductance
L
High-frequency (adjective)
High frequency (noun)
Impedance
h-f
Short wave
s.w.
s.c.c.
s.c.e.
s.p.d.t.
s.p.s.t.
s.s.c.
t.r.f.
u.h.f.
v.t.v.m
Interrupted continuous waves
Kilocycle
Lew.
Single cotton covered
Single cotton enamel
Single pole, double throw
Single pole, single throw
Single silk covered
Tuned radio frequency
Ultra high frequency
kc
Vacuum tube voltmeter
Kilohm
ktt
Volt
v
Kilovolt
kv
Voltage
E, *
Kilovolt ampere
kVa
Volt-Ohm-Milliammeter
v.o.m.
Kilowatt
kw
Watt
w
h.f.
Z
Inductance
Inductive reactance
XL
Intermediate-frequency (adjective)
Intermediate frequency (noun)
i.f.
L
i-f
* See Page 23 for Transistor Symbols.
67
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Schematic Symbols
Used in Radio Diagrams
(AERIAL)
—npp^\— CHOKE COIL
-^r
GROUND
E
im
ANTENNA
©
(LOOP)
WIRING
O° O
IRON CORE
ANTENNA
y
°
SWITCH
°
(ROTARY OR
O SELECTOR)
R.F.
CRYSTAL
DETECTOR
TRANSFORMER
(AIR CORE)
A.F.
LIGHTNING
ARRESTER
TRANSFORMER
(IRON CORE)
POWER
TRANSFORMER
METHOD I
CONNECTION
P.118 VOLT
FUSE
MUMMY
•|-CENTER •TAPPED
NO
SECONDARY FOR
FILAMENTS of
SIGNAL CIRCUIT
TUBES
CONNECTION
St-SECONDARY FOR
-S3 «8- CENTER -TAPPED
CONNECTION
i
1
T
±L
TERMINAL
CELL OR
MULTI-CELL OR
"B" BATTERY
LOUDSPEAKER,
P.M. DYNAMIC
FIXED
RESISTOR
ADJUSTABLE
OR VARIABLE
\*
ZSp.
CAPACITOR
CAPACITORS
(sansed)
IF.
TRANSFORMER
(DOUBLE-TUNED)
—*vw
POTENTIOMETER
(VOLUME
•nAM/vVW-
CONTROL)
TAPPED RESISTOR
OR VOLTAGE
DIVIDER
POWER SWITCH
S. P. S.T.
tS*o- SW|TCH
t °" S.P.D.T.
—vVW
J
—'TfoT*—
*
0=
\* ADJUSTABLE
Za£ OR VARIABLE
Z\L-~f\
HEADPHONES
(MICA OR PAPER)
CAPACITOR
#
<ft
FIXED
CAPACITOR
(ELECTROLYTIC)
"A" BATTERY
-*
KtaN.VOLTASE
SECONDARY
NO CONNECTION
ONE
*
PILOT LAMP
RECTtFOR TUBE
FILAMENT
WIRING METHOD 2
-+-
•&
SWITCH
RHEOSTAT
D.P.S.T.
AIR CORE
CHOKE COIL
SWITCH
D.P.O.T.
68
w
&~
LOUDSPEAKER,
ELECTRODYNAMB
PHONO PICK-UP
VACUUM TUBE
HEATER OR
FILAMENT
VACUUM TUBE
CATHODE
/--—__
VACUUM TUBE
KJ
GRID
*
VACUUM TUBE
/^S\
—(7—.)
\A/~
PLATE
3-ELEMENT
VACUUM TUBE
(TRIODC)
QQ
ALIGNING KEY
OCTAL BASE
TUBE
ELECTRONICS
ALLIED'S
DATA
HANDBOOK
Schematic Symbols
Used in Radio Diagrams
SLIDE
SWITCH
<$ ©
MULTI-
FILAMENT
LAMPS
NEON
LAMPS
CONTACT
SWITCH
CD
CEt
Dm:
tmx
PHONE
a
|_ PLUG
PHONO
PLUG
Br
INTER
GENERAL
CONNECTING
METER
MICROPHONE
PLUG
Male
INTER
CAPACITOR
MICROPHONE
fl
DYNAMIC
MICROPHONE
Female
VARIABLE
CORE
INDUCTOR
j
CONNECTING
PLUG
METER
UNE
PLUG
tn
PIEZOELECTRIC
CRYSTAL
FREQUENCY
CRYSTAL
MICROPHONE
tf
PHONE
DETERMINING
VARIABLE
CORE
INDUCTOR
JACK
PIEZOELECTRIC
CRYSTAL
FREQUENCY
rs.
DETERMINING
PHONE
JACK
AIR
O
o
CORE
INDUCTOR
t
PHONO CARTRIDGE
PIEZOELECTRIC
<JfL
PHONE
JACK
N_L
PIEZOELECTRIC
CRYSTAL
MONAURAL
CRYSTAL
STEREO PHONO
CARTRIDGE
IRON
CORE
INDUCTOR
-£
RECTIFIER
OR DIODE
PHONO
JACK
SHIELDED
T
pair
4=-
SHIELD
O
O
•"
o!!!
SI
POWDEREDIRON CORE
INDUCTOR
-©--©-
ZENER DIODE
DOUBLE ANODE
SHIELDED
"-£•—
WIRE
~
SILICON
SHIELD
I
1
I
i
RELAYS
SHIELDED
=e
a
CONTROLLED
RECTIFIER
Collector
ASSEMBLY
PNP
TYPE
*
—-£.--
w^-
TRANSISTOR
COMMON
^"^ Emitter
GROUND
~^w-
*€T
• WIRES SHIELDED '
BETWEEN TWO POINTS
69
NPN
TYPE
TRANSISTOR
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Common Logarithms
N
0
1
2
3
4
10
0000
0043
0086
0128
11
12
13
14
0414
0453
0828
1173
1492
0492
0864
1206
1623
0631
0792
1139
1461
0899
1239
1563
N
5
6
7
8
0170
0212
0263
0294
0334
0374
10
0669
0934
1271
1684
0607
0969
0646
1004
1336
1644
0682
1038
1367
1673
0719
1072
1399
1703
0766
1106
1430
1732
ii
12
13
14
1303
1614
9
15
1761
1790
1818
1847
1876
1903
1931
1969
1987
2014
15
16
17
18
19
2041
2304
2553
2788
2068
2330
2677
2810
2096
2365
2601
2833
2122
2380
2626
2866
2148
2406
2648
2878
2176
2430
2672
2900
2201
2466
2695
2923
2227
2480
2718
2945
2263
2504
2742
2967
2279
2629
2766
2989
16
17
18
19
20
3010
3032
3064
3076
3096
3118
3139
3160
3181
3201
20
21
22
23
24
3222
3424
3617
3802
3243
3444
3636
3820
3263
3464
3665
3838
3284
3483
3674
3866
3304
3502
3692
3874
3324
3522
3711
3892
3346
3641
3729
3909
3366
3660
3747
3927
3386
3679
3766
3946
3404
3698
3784
3962
21
22
23
24
25
3079
3997
4014
4031
4048
4066
4082
4099
4116
4133
25
26
27
28
29
4160
4314
4472
4624
4166
4330
4487
4639
4183
4346
4602
4654
4200
4362
4618
4669
4216
4378
4633
4683
4232
4249
4409
4281
4664
4266
4426
4679
4713
4728
4298
4466
4609
4767
26
27
28
29
30
4771
4786
4800
4814
4829
4843
4867
4871
4886
4900
30
31
32
33
34
4914
6051
5185
6316
4928
4942
6079
6211
6340
4966
6092
5224
4969
4983
5119
6363
6105
6237
6366
4997
5132
6260
6378
5263
6391
6011
5146
6276
6403
6024
6169
6289
5416
6038
6172
5302
5428
31
32
33
34
6066
6198
6328
4393
4648
4698
4440
4694
4742
35
5441
5463
5466
6478
6490
6602
6614
5527
5639
6561
36
36
37
38
39
6663
6676
6694
5809
6922
6687
6706
6821
6933
6699
6717
6832
6944
6611
6729
5843
6966
6623
6647
6763
6877
6988
5658
6776
6888
5999
6670
6740
6866
6966
6636
6762
5866
6977
6899
6010
36
37
38
39
6682
6798
6911
6786
40
6021
6031
6042
6063
6064
6076
6086
6096
6107
6117
40
41
42
43
44
6128
6138
6243
6346
6444
6149
6263
6365
6160
6464
6464
6474
6180
6284
6386
6484
6191
6294
6395
6493
6201
6304
6406
6603
6212
6366
6170
6274
6376
6613
6222
6326
6425
6522
41
42
43
44
6232
6335
6436
6263
6314
6416
46
6632
6642
6661
6661
6671
6680
6690
6699
6609
6618
45
46
47
48
49
6628
6721
6812
6902
6637
6730
6821
6911
6646
6739
6830
6920
6656
6749
6839
6928
6666
6768
6848
6937
6676
6767
6867
6946
6684
6776
6866
6965
6693
6786
6876
6964
6702
6884
6972
6712
6803
6893
6981
46
47
48
49
50
6990
6998
7007
7016
7024
7033
7042
7060
7069
7067
50
51
52
53
54
7076
7160
7243
7324
7084
7168
7261
7332
7093
7177
7269
7340
7101
7186
7267
7348
7110
7193
7276
7366
7118
7202
7284
7364
7126
7210
7292
7372
7136
7218
7300
7380
7143
7226
7308
7388
7162
7235
7316
7396
51
52
63
54
N
0
1
2
3
4
5
6
7
8
9
N
70
6794
>
ELECTRONICS
ALLIED'S
HANDBOOK
DATA
Common Logarithms (Continued)
N
0
1
2
3
4
5
6
7
8
9
N
55
7404
7412
7419
7427
7436
7443
7461
7469
7466
7474
55
56
57
58
59
7482
7669
7634
7709
7490
7666
7642
7716
7497
7674
7649
7723
7606
7582
7667
7731
7613
7689
7664
7738
7620
7697
7672
7746
7628
7604
7679
7762
7636
7612
7686
7760
7643
7619
7694
7767
7661
7627
7701
7774
56
57
58
59
60
7782
7789
7796
7803
7810
7818
7826
7832
7839
7846
60
61
62
63
64
7858
7924
7993
8062
7860
7931
8000
8069
7868
7876
7946
8014
8082
7882
7962
8021
8089
7889
7969
8028
8096
7896
7938
8007
8075
8036
8102
7903
7973
8041
8109
7910
7980
8048
8116
7917
7987
8056
8122
61
62
63
64
65
8129
8136
8142
8149
8156
8162
8169
8176
8182
8189
65
8241
8248
8306
66
67
8344
8407
8361
8414
8367
8420
8363
8426
8370
8432
8312
8376
8439
8264
8319
8382
8446
68
8470
8476
8482
8488
8494
8600
8506
70
8649
8609
8669
8727
8565
8615
8676
8733
8661
71
72
73
74
66
67
68
69
8195
8261
8326
8388
8202
8267
8331
8396
8209
8274
8338
8401
70
8461
8467
8463
8216
8280
8222
8287
8228
8293
7966
8236
8299
69
8633
8692
8619
8679
8639
8698
8525
8686
8646
8704
8631
8691
8661
87 lO
8637
8697
8667
8716
8643
8603
8663
8722
8739
8667
8627
8686
8746
8761
8766
8762
8768
8774
8779
8785
8791
8797
8802
75
8842
8899
8954
8848
8864
9009
8904
8960
9016
8910
8965
9020
8869
8916
8971
9025
76
77
78
79
71
72
73
74
8613
8673
75
8621
8681
8820
8876
8932
8987
8826
8882
8938
8993
8831
8887
8943
8976
8814
8871
8927
8982
8998
8837
8893
8949
9004
9031
9036
9042
9047
9053
9058
9063
9069
9074
9079
80
9117
9170
9222
9274
9122
9258
9106
9169
9212
9263
9112
9166
9217
9269
9176
9227
9279
9128
9180
9232
9284
9133
9186
9238
9289
81
82
83
84
9309
9316
9320
9326
9330
9335
9340
85
9380
9430
9479
9628
9386
9436
9484
9633
9390
9440
9489
9638
86
87
88
89
76
77
78
79
8808
8866
8921
80
81
82
83
84
9086
9138
9191
9243
9090
9143
9196
9248
9096
9149
85
9294
9299
9304
9201
9263
9101
9164
9206
9456
9604
9360
9410
9460
9509
9366
9416
9466
9613
9370
9420
9469
9618
9376
9425
9474
9623
9647
9652
9667
9662
9666
9671
9576
9681
9686
90
9690
9638
9686
9731
9696
9643
9689
9736
9600
9647
9694
9741
9606
9662
9614
9661
9708
9764
9619
9666
9713
9746
9609
9667
9703
9760
9624
9671
9717
9763
9628
9676
9722
9768
9633
9680
9727
9773
91
92
93
94
95
9777
9782
9786
9791
9796
9800
9806
9809
9814
9818
95
96
97
98
99
9823
9868
9912
9966
9827
.9872
9917
9961
9832
9877
9921
9966
9836
9881
9926
9969
9841
9886
9930
9974
9846
9890
9934
9978
9850
9894
9939
9983
9854
9899
9943
9987
9869
9903
9948
9991
9863
9908
9952
9996
96
97
98
99
N
0
1
2
3
4
5
6
7
8
9
N
9446
9494
9350
9400
9460
9499
9642
91
92
93
94
86
87
88
89
9346
9396
90
9366
9406
9699
71
9769
A
L L I E D ' S
ELECTRONICS
DATA
HANDBOOK
Natural Sines, Cosines, and Tangents
0°-14.9°
Dogs.
0
1
Function
0.0s
04.°
0.2"
0.3s
0.4°
0.5s
0.6s
0.7s
0.8°
0.9s
sin
0.0000
0.0035
0.0052
1.0000
0.0052
0.0070
1.0000
0.0070
0.0087
1.0000
0.0087
0.0105
0.9999
0.0105
0.0122
0.9999
0.0122
0.0140
0.9999
0.0140
0.0157
1.0000
0.0000
0.0017
1.0000
0.0017
0.0035
cos
tan
sin
0.0175
0.9938
0.0175
0.0192
0.9998
0.0192
0.0209
0.9998
0.0209
0.0227
0.9997
0.0227
0.0244
0.9997
0.0244
0.0262
0.9997
0.0262
0.0279
0.9996
0.0279
0.0297
0.9996
0.0297
0.0314
0.9995
0.0314
0.0332
0.9995
0.0332
0.0384
0.9993
0.0384
0.0401
0.9992
0.0419
0.9991
0.0419
0.0436
0.9990
0.0437
0.0454
0.9990
0.0454
0.0471
0.0402
0.9989
0.0472
0.0488
0.9988
0.0489
0.0506
0.9987
0.0507
ees
tan
2
sin
0.0349
0.0366
0.9994
0.0349
0.0367
0.0523
0.9986
0.0524
0.0541
0.9985
0.0542
0.0558
0.9984
0.0559
0.0576
0.9983
0.0577
0.0593
0.9982
0.0594
0.0610
0.9981
0.0612
0.0628
0.9980
0.0629
0.0645
0.9979
0.0647
0.0663
0.9978
0.0664
0.0680
0.9977
0.0682
0.0698
0.9976
0.0699
0.0715
0.9974
0.0717
0.0732
0.9973
0.0734
0.0750
0.9972
0.0752
0.0767
0.9971
0.0769
0.0785
0.9969
0.0787
0.0802
0.9968
0.0805
0.0819
0.9366
0.0822
0.0837
0.9965
0.0840
0.9963
0.0857
0.0872
0.9962
0.0875
0.0889
0.9960
0.0892
0.0906
0.9959
0.0910
0.0924
0.9957
0.0928
0.0941
0.9956
0.0945
0.0958
0.9954
0.0963
0.0976
0.9952
0.0981
0.0993
0.9951
0.0938
0.1011
0.9949
0.1016
0.1028
0.9947
0.1033
0.1045
0.9945
0.1051
0.1063
0.9943
0.1069
0.1080
0.9942
0.1086
0.1097
0.9940
0.1104
0.1115
0.9938
0.1122
0.1132
0.9936
0.1139
0.1149
0.9934
0.1157
0.1167
0.9932
0.1175
0.1184
0.9930
0.1192
0.1201
0.9928
0.1210
0.1219
0.9925
0.1228
0.1236
0.9923
0.1246
0.1253
0.9921
0.1263
0.1271
0.9919
0.1281
0.1288
0.9917
0.1299
0.1305
0.9914
0.1317
0.1323
0.9912
0.1334
0.1340
0.9910
0.1352
0.1357
0.9907
0.1370
0.1374
0.9905
0.1388
0.1392
0.9903
0.1405
0.1409
0.9900
0.1423
0.1426
0.9898
0.1441
0.1444
0.1461
0.9895
0.1459
0.1477
0.1478
0.9890
0.1495
0.1495
0.9888
0.1512
0.1513
0.9885
0.1530
0.1530
0.9882
0.1548
0.1547
0.9880
0.1566
0.1564
0.9877
0.1584
0.1582
0.9874
0.1602
0.1599
0.9871
0.1620
0.1616
0.9869
0.1638
0.1633
0.9866
0.1655
0.1650
0.9863
0.1673
0.1668
0.9860
0.1691
0.1685
0.9857
0.1709
0.1702
0.9854
tan
0.1719
0.9851
0.1745
sin
0.1736
0.1788
0.9839
0.1817
0.1805
0.9836
0.1835
0.1822
0.9833
0.1853
0.1840
0.9829
0.1871
0.1874
0.9848
0.1763
0.1771
0.9842
0.1799
0.1857
cos
0.1754
0.9845
0.1781
0.9826
0.1890
0.9823
0.1908
0.1891
0.9820
0.1926
0.1908
0.9816
0.1944
0.1925
0.9813
0.1942
0.9810
0.1962
0.1980
0.1959
0.9806
0.1998
0.1977
0.9803
0.2016
0.1994
0.9799
0.2035
0.2011
0.9796
0.2053
0.2028
0.9792
0.2071
0.2045
0.9789
0.2089
0.2062
0.9785
0.2107
0.2079
0.2096
0.9778
0.2130
0.9770
0.2180
0.2147
0.9767
0.2199
0.2164
0.9763
0.2217
0.2181
0.2198
0.9759
0.2215
0.9751
0.2272
0.2232
0.9748
0.2290
sin
cos
tan
sin
4
cos
tan
sin
5
cos
tan
sin
6
cos
tan
sin
7
cos
tan
sin
8
cos
tan
sin
9
10
cos
tan
sin
11
cos
tan
sin
12
13
0.9893
0.1727
0.0854
cos
0.9781
0.2126
0.2144
0.2113
0.9774
0.2162
0.2235
0.9755
0.2254
sin
0.2250
0.9744
0.2309
0.2267
0.9740
0.2327
0.2284
0.9736
0.2345
0.2300
0.9732
0.2364
0.2318
0.9728
0.2382
0.2334
0.9724
0.2401
0.2351
0.9720
0.2419
0.2368
0.9715
0.2438
0.2385
0.9711
0.2456
0.2402
0.9707
0.2475
0.2419
0.9703
0.2493
0.2436
0.9699
0.2512
0.2453
0.9694
0.2530
0.2470
0.9690
0.2549
0.2487
0.9686
0.2568
0.2504
0.9681
0.2586
0.2521
0.9677
0.2605
0.2538
0.9673
0.2623
0.2554
tan
0.9668
0.2642
0.2571
0.9664
0.2661
Function
C
6'
1?
18'
24'
30'
36'
42'
48'
54'
cos
sin
Dogs.
0.9993
tan
tan
14
0.9999
0.0157
cos
tan
3
1.0000
cos
72
HANDBOOK
DATA
ELECTRONICS
ALLIED
Natural Sines, Cosines, and Tangents—(Continued)
15°-29.9°
Degs.
Function
0.0°
0.1"
0.2°
0.3°
0.4°
0.5°
0.6°
0.7°
0.8°
0.9°
sin
0.2588
0.2605
0.2622
0.2672
0.2723
0.9659
0.9655
0.9641
0.9622
0.2740
0.9617
0.2679
0.2698
0.2736
0.2754
0.9636
0.2773
0.9627
tan
0.9650
0.2717
0.2689
0.9632
0.2706
cot
0.2639
0.9646
0.2656
15
0.2792
0.2811
0.2830
0.2849
0.2874
0.2907
0.3038
16
17
tin
0.2756
0.2773
0.2790
0.2807
cos
0.9613
0.2867
0.9608
0.2886
0.9603
tan
0.2905
0.9598
0.2924
sin
0.2924
cos
0.9563
0.3057
tan
18
20
0.3090
0.3107
0.3123
0.9511
0.3249
0.9505
0.3269
0.9500
0.3288
cos
0.3256
0.9455
tan
0.3443
23
25
i
26
27
28
Degs.
0.3289
0.9444
0.3482
0.9583
0.2981
0.9578
0.2962
0.3000
0.3019
0.2990
0.9542
0.3134
0.3007
0.3024
0.3057
0.3074
0.9537
0.3153
0.9532
0.3040
0.9527
0.9516
0.3172
0.3191
0.9521
0.3211
0.3190
0.9478
0.3206
0.3223
0.3365
0.9472
0.3385
0.9466
0.3404
0.3239
0.9461
0.3140
0.9494
0.3156
0.3173
0.9489
0.3307
0.3327
0.9483
0.3346
0.3305
0.9438
0.3502
0.3355
0.3387
0.3404
0.9426
0.9415
0.9409
0.3522
0.3541
0.9421
0.3561
0.3581
0.3600
0.9403
0.3620
0.3551
0.3437
0.3453
0.3469
0.3518
0.9385
0.9379
0.3486
0.9373
0.3502
0.9391
0.9367
0.9361
0.3659
0.3679
0.3699
0.3719
0.3739
0.3759
0.9354
0.3779
0.9348
0.3799
0.3714
sin
.3584
0.3600
0.3616
0.3633
0.9336
0.9330
0.9323
0.3839
0.3859
0.3879
0.9317
0.3899
cos
0.3746
0.9272
tan
0.4040
0.3762
0.9265
0.4061
0.3649
0.9311
0.3665
0.9304
0.3681
0.9298
0.9291
0.9285
0.3919
0.3939
0.3959
0.3979
0.4000
0.4020
0.3875
0.3891
0.9219
0.9212
0.4204
0.4224
0.3843
0.9232
0.4122
0.3827
0.9239
0.4142
0.4163
0.3859
0.9225
0.4183
0.3971
0.3987
0.4019
0.9157
0.4051
0.9171
0.4348
0.4003
0.9164
0.4035
0.9178
0.9150
0.9143
0.4369
0.4390
0.4411
0.4431
0.4195
0.9078
0.4210
0.3811
0.9245
0.4081
0.4101
0.3955
0.9184
0.4307
0.4327
0.3907
0.3923
0.3939
0.9205
0.4245
0.9198
0.4265
0.9191
0.4286
sin
0.4067
0.4083
0.4099
0.4147
0.9135
0.4452
0.9128
0.4473
0.9121
0.4115
0.9114
0.4131
cos
0.9107
tan
0.4494
0.4515
0.4536
0.9100
0.4557
0.4258
0.9048
0.4274
0.4289
0.9041
0.9033
0.4706
0.4727
0.4415
0.8973
0.4921
sin
0.4226
0.4242
cos
0.9063
tan
0.4663
0.9056
0.4684
sin
cos
0.4384
0.8988
0.4399
0.8980
tan
0.4877
0.4899
0 3819
0.3730
0.9278
0.3795
0.9252
cos
0.3567
0.9342
0.3697
0.3778
0.9259
sin
0.3424
0.3338
0.9397
0.3640
cos
0.3230
0.3322
0.9432
0.3420
tan
0.9568
0.3371
sin
0.4163
0.9092
0.4179
0.9070
0.4642
0.4578
0.9085
0.4599
0.4305
0.4321
0.4337
0.9026
0.9018
0.9011
0.4352
0.9003
0.4748
0.4770
0.4791
0.4813
0.4834
0.8996
0.4856
0.4431
0.4446
0.4462
0.4478
0.4524
0.8957
0.4964
0.8949
0.8942
0.8926
0.8918
0.4986
0.5008
0.4493
0.8934
0,5029
0.4509
0.8965
0.5051
0.5073
0.4942
0.4621
0.4368
sin
0.4540
0.4571
0.4586
0.8910
0.8894
0.8886
0.4602
0.8878
0.4617
cos
0.4555
0.8902
0.8870
0.4633
0.8862
0.4648
0.8854
0.4664
tan
0.5095
0.5117
0.5139
0.5161
0.5184
0.5206
0.5228
0.5250
0.5272
sin
0.4695
0.8829
0.4710
0.8821
0.4726
0.4741
0.4756
0.4802
0.4818
0.8813
0.8805
0.8796
0.4772
0.8788
0.4787
cos
0.8780
0.8771
0.8763
0.4833
0.8755
tan
0.5317
0.5340
0.5362
0.5384
0.5407
0.5430
0.5452
0.5475
0.5498
0.5520
0.4909
0.8712
0.4924
0.4939
0.8695
0.5681
0.4955
0.8686
0.4970
0.4985
0.8669
0.5704
0.8678
0.5727
36'
42'
48'
54'
0.4848
0.8746
0.4863
0.4879
0.4894
cos
0.8738
tan
0.5543
0.5566
0.8729
0.5589
0.8721
0.5612
0.5635
0.8704
0.5658
Function
0'
6'
12'
18'
24'
30'
sin
29
0.9449
0.3463
0.3115
0.9588
0.2943
cos
tan
24
0.3272
0.2974
0.9548
0.2840
0.2890
0.9573
0.3535
sin
22
0.9553
0.3096
sin
tan
21
0.3076
0.2957
cos
tan
sin
19
0.2940
0.9558
0.2823
0.9593
0.2857
73
0.4679
0.8846
0.8838
0.5295
0.5750
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Natural Sines, Cosines, and Tangents—(Continued)
30°-44.9°
Degs.
Function
0.0°
0.1s
0.2°
0.3°
0.4°
0.5°
0.6°
0.7°
0.8°
0.9°
sin
0 5015
0.8652
0.5030
0.5090
0.8607
0.5135
0 8634
0.5075
0.8616
0.5120
0.8643
0.8599
tan
0.5774
0.5797
0 5820
0.5844
0.5060
0.8625
0.5867
0.5105
cos
0.5000
0.8660
0.5045
30
0.5890
0.5914
0.5938
0.8590
0.5961
0.5985
sin
0.5150
0.8572
0.5165
0.5180
0.5195
0 8563
0.8554
0.8545
0.5225
0.8526
0.5255
0.8508
tan
0.6009
0.6032
0.6056
0.6080
0.5210
0.8536
0.6104
0.5240
cos
0.6128
0.6152
0.6176
sin
0.5299
0.5314
0.5329
0.5344
0.5358
0.5388
0.5402
0.5417
0.5432
cos
0.8471
0.8462
0.8453
0.8396
0.6297
0.6322
0.8425
0.6395
0.8406
0.6273
0.8443
0.6346
0.8415
tan
0.8480
0.6249
0.5373
0.8434
0.6420
0.6445
0.6469
sin
0.5446
0.5461
0.5476
0.5490
0.5505
0.5548
0.5563
0.5577
0.8377
0.6519
0 8368
0.8358
0.8348
0 8339
0.8320
0.8310
0.8300
0.6544
0.6569
0.6594
0.6619
0.6669
0.6694
0.6720
0.5635
0.5707
0.8251
0.8241
0.5678
0.8231
0.5693
0.8261
0.5721
0.8202
0.6847
0.6873
0.6899
0 8221
0.6924
0.8211
0.6822
0.6950
0.6976
0.5779
0.5793
0.5807
31
32
33
34
35
36
cos
0 8387
tan
0.6494
sin
0.5592
0.5606
39
40
cos
0.8290
0.8281
0.6745
0.6771
0.6796
sin
0.5736
0.5750
0.8181
0.7028
0.5764
0.8171
0.8161
0.8151
0.8141
0.8131
0.8121
0.8111
0.8100
0.7054
0.7080
0.7107
0.7133
0.7159
0.7186
0.7212
0.7239
0.5934
cos
0.8192
tan
0.7002
sin
0.5878
0.8090
0.7265
cos
42
43
44
Degs.
0.5650
0.5664
0.5821
0.5835
0.5850
0.5864
0.5892
0.5906
0.5976
0.5990
0.6004
0.8070
0.8059
0.8049
0.5948
0.8039
0.5962
0.8080
0.8028
0.8018
0.8007
0.7292
0.7319
0.7346
0.7373
0.7400
0.7427
0.7454
0.7481
0.7997
0.7508
0.5920
0.6018
0.7986
0.7536
0.6032
0.7976
0.6046
0.6088
0.7934
0.6115
0.6129
0.6143
0.7955
0.6074
0.7944
0.6101
0.7965
0.7923
0.7912
0.7902
tan
0.7563
0.7590
0.7618
0.7646
0.7673
0.7701
0.7729
0.7757
0.7891
0.7785
sin
0.6157
0.6170
0.6184
0.6198
0.6239
0.6280
0.7869
0.7841
0.7859
0.7848
0.7826
0.7815
0.6252
0.7804
0.6266
0.7880
0.7813
0.6211
0.7837
0.6225
cos
0.7793
0.7782
tan
0.7869
0.7898
0.7926
0.7954
0.7983
0.8012
0.8040
0.8069
sin
0.6347
0.7727
0.6361
0.7716
0.6401
0.6414
0.7705
0.7694
0.7683
0.8214
0.8243
0.8273
0.8302
0.8332
0.7672
0.8361
cos
0.6060
0.6293
0.6307
0.6320
0.6334
cos
0.7771
tan
0.8098
0.7760
0.8127
0.7749
0.8156
0.7738
0.8185
sin
0.6428
cos
0.7660
0.8391
tan
41
0.5284
0.8490
0.6224
tan
sin
38
0.5534
0.8329
0.6644
0.5270
0.8499
0.6200
0.5621
0.8271
tan
37
0.6371
0.5519
0.8517
0.8581
0.6441
0.7649
0.6374
0.6388
0.6547
0.6455
0.6468
0.6481
0.7615
0.6494
0.6508
0.7638
0.8451
0.7627
0.6521
0.7581
0.7570
0.7559
0.8481
0.8511
0.7604
0.8541
0.7593
0.8421
0.8571
0.8601
0.8632
0.8662
0.6613
0.6534
sin
0.6561
0.6574
0.6587
0.6600
0.6626
0.6639
0.7547
0.7536
0.7513
0.7501
0.7490
0.7478
0.7455
0.6678
0.7443
tan
0.8693
0.8724
0.7524
0.8754
0.6652
0.7466
0.6665
cos
0.8785
0.8816
0.8847
0.8878
0.8910
0.8941
0.8972
0.6769
sin
0.6691
0.6704
0.6717
0.6756
0.6807
0.7420
0.9036
0.7408
0.7385
0.7373
0.7361
0.6782
0.7349
0.6794
0.7431
0.9004
0.6730
0.7396
0.6743
cos
0.7337
0.7325
tan
0.9067
0.9099
0.9131
0.9163
0.9195
0.9228
0.9260
0.9293
sin
0.6909
0.7230
0.9556
0.6921
0.6934
0.7218
0.9590
0.7206
0.6820
0.6833
0.6845
0.6858
0.6871
0.6884
0.6896
cos
0.7314
0.7302
0.7242
0.9358
0.7278
0.9424
0.7254
0.9325
0.7290
0.9391
0.7266
tan
0.9457
0.9490
0.9523
sin
0.9623
0.6947
0.6959
0.6972
0.6984
0.6997
0.7034
0.7046
0.7059
0.7193
0.7181
0.7169
0.7157
0.7145
0.7120
0.7108
0.7096
0.7083
0.9657
0.9691
0.9725
0.9759
0.9793
0.7009
0.7133
0.9827
0.7022
cos
tan
0.9861
0.9896
0.9930
0.9965
Function
0'
6'
12'
18'
24'
30'
36'
42'
48'
54'
74
ALLIED'S
HANDBOOK
DATA
ELECTRONICS
Natural Sines, Cosines, and Tangents—(Continued)
45°-59.9°
Degs.
Function
0.0°
0.1s
0.2°
0.3°
0.4°
0.5°
0.6°
0.7°
0.8°
0.9°
sin
0.7096
0.7133
0.7145
0.7046
0.7022
0.6997
0.7157
0.6984
0.7169
0.7059
0.7108
0.7034
0.7120
cos
0.7071
0.7071
0.7083
45
0.6972
0.7181
0.6959
1.0212
1.0247
1.0283
1.0319
0.7302
0.6833
1.0686
46
47
48
49
50
51
52
53
54
55
tan
1.0000
1.0035
1.0070
1.0105
1.0141
0.7009
1.0176
sin
0.7193
0.7206
0.7218
0.7230
0.7242
0.7254
0.7266
0.7278
0.7290
cos
0.6934
0.6921
0.6909
0.6896
0.6884
0.6871
0.6858
0.6845
tan.
0.6947
1.0355
1.0392
1.0428
1.0464
1.0501
1.0538
1.0575
1.0612
1.0649
sin
0.7314
0.7325
0.7337
0.7349
0.7361
0.7385
0.7396
0.7408
cos
0.6820
0.6807
0.6782
0.6769
0.7373
0.6756
0.6743
0.6730
0.6717
0.7420
0.6704
1.0837
1.0875
1.0913
1.0951
1.0990
1.1028
1.1067
0.7466
0.6652
0.7478
0.7490
0.6626
0.7501
0.6613
0.7513
0.7524
0.6600
0.6587
0.7536
0.6574
1.1463
tan
1.0724
1 .0761
0.6794
1.0799
sin
0.7431
0.6691
0.7443
0.7455
0.6678
1.1145
0.6665
1.1184
cos
57
58
59
Degs.
1.1303
1.1343
1.1383
1.1423
0.7593
0.7604
0.7615
0.7627
0.7638
0.6494
0.6481
0.6455
0.7649
0.6441
1.1750
0.6468
1.1792
1.1833
1.1875
0.7727
0.6347
0.7738
0.6334
0.7749
0.7760
0.6307
1.2305
tan
1.1106
sin
0.7547
0.7559
0.7570
0.7581
cos
0.6561
0.6547
0.6534
0.6521
1.1708
tan
1.1504
1.1544
1.1585
1.1626
0.6508
1.1667
sin
0.7660
0.7694
0.7705
0.7716
0.6428
0.7672
0.6414
0.7683
cos
0.6401
0.6388
0.6361
0.6320
tan
1.1918
1.1960
1.2002
1.2045
0.6374
1.2088
1,2131
1.2174
1.2218
1.2261
sin
0.7782
0.7815
0.7826
0.7837
0.6252
0.6239
0.6225
0.6211
0.7848
0.6198
0.7859
0.6184
tan
1.2349
0.6280
1.2393
0.7793
0.6266
0.7804
cos
0.7771
0.6293
sin
0.7880
0.7891
cos
0.6157
tan
sin
0.7869
0.6170
1.2753
1.2437
1.2482
1.2527
1.2572
1.2617
1.2662
1.2708
0.7912
0.7923
0.7934
0.7944
0.7955
0.6143
0.7902
0.6129
0.6101
0.6060
1.2846
1.2892
0.6088
1.3032
0.6074
1.2799
0.6115
1.2938
0.7965
0.6046
1.3079
1.3127
1.3175
0.7986
0.6018
0.7997
0,6004
0.8007
0.5990
0.8018
0.8049
0.8080
0.5892
1.3270
1.3319
1.3367
1.3416
1 .3465
0.5934
1.3564
0.5906
tan
0.5948
1.3514
0.8059
0.5920
0.8070
0.5976
0.8028
0.5962
0.8039
cos
1.3613
1.3663
1.3713
sin
0.8090
0.8100
0.8111
0.8121
0.8131
0.8141
0.8151
0.8161
cos
0.5878
0.5864
0.5850
0.5835
0.5821
0.5807
0.5793
0.8171
0.5764
0.5750
tan
1.3764
1.3814
1.3865
1.3916
1.3968
1.4019
1.4071
0.5779
1.4124
1.4176
1.4229
0.8261
0.5635
0.8271
0.5621
0.8281
0.5606
1.2985
0.7976
0.6032
1.3222
0.8181
sin
0.8192
0.8202
0.8211
0.8221
0.8231
0,8241
0.8251
cos
0.5736
0.5721
0.5707
0.5693
0.5678
0.5664
0.5650
tan
1.4281
1.4335
1.4388
1.4442
1.4496
1.4550
1.4605
1.4659
1.4715
1.4770
0.8329
0.8339
0.8348
0.8358
0.8368
0.8377
0.5461
1.5340
0.8300
0.8310
cos
0.8290
0.5592
0.8320
0.5577
0.5563
0.5519
0.5505
0.5490
1.4826
1.4882
1.4938
0.5548
1.4994
0.5534
tan
1.5051
1.5108
1.5166
1.5224
0.5476
1.5282
sin
0.8387
0.8396
0.8406
0.8415
0.8425
0.8453
0.8462
0.8471
0.5446
0.5432
0.5417
0.5402
0.5358
0.5344
0.5329
0.5314
tan
1.5399
1.5458
1.5517
1.5577
0.5388
1.5637
0.8434
0.5373
0.8443
cos
sin
56
1.1224
0.6639
1.1263
1.5697
1.5757
1.5818
1.5880
1.5941
0.8526
0.5225
0.8536
0.8545
0.8554
0.8563
0.5210
0.5195
0.5180
0.5165
1.6319
1.6383
1.6447
1.6512
1.6577
sin
0.8480
0.8508
0.5299
1.6003
0.5270
1.6128
0.5255
tan
0.8490
0.5284
1.6066
0.8499
cos
0.8517
0.5240
1.6191
1.6255
sin
0.8572
0.8581
0.8590
0.8599
0.8607
0.8616
0.8625
0.8634
cos
0.5135
0.5120
0.5045
0.8643
0.5030
1.6775
0.5090
1.6909
0.5060
1.6709
0.5105
1.6842
0.5075
tan
0.5150
1.6643
1.6977
1.7045
1.7113
1.7182
0 8652
0.5015
1.7251
Function
0'
6'
12'
18'
24'
30'
36'
42'
48'
54'
75
ALLIED'S
ELECTRONICS
DATA
HANDBOOK
Natural Sines, Cosines, and Tangents—(Continued)
60°-74.9°
Dogs.
60
Function
0.0s
04."
0.2s
0.3s
0.4s
0.5s
0.6s
0.7s
0.8s
0.9s
sin
0.8660
0.5000
1.7321
0.8669
0.4985
1.7391
0.8678
0.8686
0.4955
1.7532
0.8695
0.4939
1.7603
0.8704
0.4924
1.7675
0.8712
0.4909
1.7747
0.8721
0.4894
1.7820
0.8723
0.4879
1.7893
0.8738
1.7461
0.8746
0.4848
1.8040
0.8755
0.8763
0.4818
0.8771
0.4802
0.8796
0.4756
1.8495
0.8805
0.4741
1.8572
0.8813
0.4726
1.8265
0.8780
0.4787
1.8341
0.8788
0.4772
1.8190
1.8650
0.8821
0.4710
1.8728
0.8829
0.4695
1.8807
0.8838
0.4679
1.8887
0.8846
0.4664
1.8967
0.8854
0.4648
1.9047
0.8862
0.4633
1.9128
0.8870
0.4617
1.9210
0.8878
0.4602
1.9292
0.8886
0.4586
1.9375
0.8694
0.4571
1.9458
0.8902
0.4555
1.9542
0.8910
0.4540
1.9626
0.8918
0.4524
1.9711
0.8926
0.4509
1.9797
0.8934
0.4493
1.9883
0.8942
0.4478
1.9970
0.8949
0.4462
2.0057
0.8957
0.4446
2.0145
0.8965
0.4431
2.0233
0.8973
0.4415
2.0323
0.8980
0.8388
0.4384
2.0503
0.8996
0.4368
2.0594
0.9003
0.4352
2.0686
0.9011
0.4337
2.0778
0.9018
0.4321
2.0872
0.9026
0.4305
2.0365
0.9033
0.4289
2.1060
0.9041
0.4274
2.1155
0.9048
0.4258
2.1251
0.9056
0.4242
0.9063
0.4226
2.1445
0.9070
0.4210
2.1543
0.9078
0.4195
2.1642
0.3085
0.4179
2.1742
0.9092
0.4163
2.1842
0.9100
0.4147
2.1943
0.9107
0.4131
2.2045
0.9114
0.4115
2.2148
0.9121
0.4099
2.2251
0.9128
0.4083
2.2355
0.9135
0.4067
2.2460
0.9143
0.4051
0.9150
0.4035
2.2673
0.9157
0.4019
2.2781
0.9164
0.4003
2.2566
2.2889
0.9171
0.3387
2.2338
0.9178
0.3971
2.3109
0.9184
0.3955
2.3220
0.9191
0.3939
2.3332
0.9198
0.3923
2.3445
cos
tan
sin
61
cos
tan
sin
62
cos
tan
sin
63
cos
tan
sin
64
cos
tan
sin
65
cos
tan
sin
66
cos
tan
0.9219
0.3875
2.3789
0.3859
2.3906
0.9232
0.3843
2.4023
0.9239
0.3827
2.4142
0.9245
0.3811
2.4262
0.9252
0.3795
2.4383
0.9259
0.3778
2.4504
0.9265
0.3762
2.4627
0.9272
0.3746
2.4751
0.9278
0.3730
2.4876
0.9285
0.3714
2.5002
0.9291
0.3697
2.5129
0.9298
0.3681
2.5257
0.9304
0.3665
2.5386
0.9311
0.3649
2.5517
0.9317
0.3633
2.5649
0.9323
0.3616
2.5782
0.9330
0.3600
2.5916
0.9336
0.3584
2.6051
0.9342
0.3567
2.6187
0.9348
0.3551
2.6325
0.9354
0.3535
2.6464
0.9361
0.3518
2.6605
0.9367
0.3502
2.6746
0.9373
0.3486
2.6889
0.9373
0.3463
2.7034
0.9385
0.3453
2.7179
0.9391
0.3437
2.7326
0.9397
0.3420
2.7475
0.9403
0.3404
2.7625
0.9409
0.3387
2.7776
0.9415
0.3371
2.7929
0.9421
0.3355
2.8083
0.9426
0.3338
2.8239
0.9432
0.3322
2.8397
0.3438
0.3305
2.8556
0.9444
0.3289
2.8716
0.9449
0.3272
2.8878
0.9455
0.3256
2.9042
0.9461
0.3239
2.9208
0.9466
0.3223
2.9375
0.3472
0.3206
2.9544
0.9478
0.3190
2.9714
0.9483
0.3173
2.9887
0.9489
0.3156
3.0061
0.3434
0.3140
3.0237
0.9500
0.3123
3.0415
0.9505
0.3107
3.0595
0.9511
0.3090
3.0777
0.9516
0.3074
3.0961
0.9521
0.3057
3.1146
0.9527
0.9537
0.3007
3.1716
0.9542
0.2990
3.1910
0.3548
0.2974
3.2106
0.9553
0.2957
3.1334
0.9532
0.3024
3.1524
3.2305
0.9558
0.2940
3.2506
0.9563
0.2924
3.2709
0.9568
0.2907
3.2914
0.9573
0.2890
3.3122
0.9578
0.2874
3.3332
0.9583
0.2857
3.3544
0.9588
0.2840
3.3759
0.9593
0.2823
3.3977
0.9598
0.2807
3.4197
0.9603
0.2790
3.4420
0.9608
0.2773
3.4646
tan
0.9613
0.2756
3.4874
0.9617
0.2740
3.5105
0.9622
0.2723
3.5339
0.3627
0.2706
3.5576
0.9632
0.2689
3.5816
0.9636
0.2672
3.6059
0.9641
0.2656
3.6305
0.9646
0.2639
3.6554
0.9650
0.2622
3.6806
0.9655
0.2605
3.7062
Function
0'
6'
12'
18'
24'
30'
36'
42'
48'
54'
cos
tan
sin
cos
tan
sin
70
cos
tan
sin
71
cos
tan
sin
72
cos
tan
sin
73
cos
tan
sin
74
Dogs.
2.1348
2.3673
sin
69
0.4399
2.0413
0.9212
0.3891
cos
tan
68
1.8418
0.4863
1.7966
0.9205
0.3907
2.3559
sin
67
0.4833
1.8115
0.4970
cos
0.9225
0.3040
76
ALLIED'S
ELECTRONICS
HANDBOOK
DATA
Natural Sines, Cosines, and Tangents—(Continued)
75°-89.9°
4.2303
4.2635
0.9763
0.9767
0.9770
0.9774
0.9778
0.2164
0.2147
4.5107
4.5483
0.2130
4.5864
0.2113
4.4374
0.2181
4.4737
0.2096
4.6646
0.9792
0.9796
0.9803
0.9813
0.2011
4.8716
0.1942
4.7453
0.2028
4.8288
0.9806
0.1959
0.9810
0.2045
4.7867
0.9799
0.1994
0.9820
0.9823
0.9829
0.1891
5.1929
0.1874
0.9826
0.1857
5.2422
5.2924
0.1840
5.3435
0.9851
0.9854
0.9857
0.1719
0.1702
5.7297
5.7894
0.1685
5.8502
0.9882
0.9885
4.1022
0.9755
0.9759
0.2198
4.3662
0.2215
4.4015
0.9781
0.2079
0.9785
0.9789
0.2062
4.7046
cos
0.9816
0.1908
tan
5.1446
sin
cos
0.9848
0.1736
tan
5.6713
4.0713
0.9748
0.9751
0.2250
0.2232
4.3315
cos
tan
5.0045
5.0504
0.9833
0.1822
0.9836
0.9839
0.1805
0.1788
0.9842
0.1771
0.9845
0.1754
5.3955
5.4486
5.5026
5.5578
5.6140
0.9860
0.9863
0.9866
0.9874
0.1650
5.9758
0.1633
0.9869
0.1616
0.9871
0.1668
0.1582
6.0405
6.1066
0.1599
6.1742
0.9890
0.9895
6.6912
6.7720
6.8548
0.9898
0.1426
6.9395
0.9900
0.1478
0.9893
0.1461
5.9124
4.9152
cos
0.9877
0.1564
0.9880
0.1547
0.1530
0.1513
tan
6.3138
6.3859
6.4596
6.5350
sin
0.9903
0.9907
0.1357
0.9912
0.1340
0.1323
0.9914
0.1305
0.9917
0.1392
7.1154
0.9905
0.1374
0.9910
cos
0.1288
0.9919
0.1271
7.2066
7.3002
7.3962
7.4947
7.5958
7.6996
7.8062
0.9928
0.1201
8.2636
0.9930
0.9932
0.9934
0.1167
0.1149
0.9«36
0.1132
0.9938
0.1184
0.1115
8.3863
8.5126
8.6427
8.7769
0.9949
0.9951
0.9952
0.9954
0.0993
0.0976
0.0958
9.6768
0.1011
9.8448
0.9963
0.9965
0.0854
0.0837
tan
sin
cos
tan
0.9925
0.1219
8.1443
sin
0.9945
cos
0.1045
9.5144
tan
sin
cos
tan
0.9962
0.0872
11.43
0.9947
0.1028
11.66
sin
0.9976
0.9977
cos
0.0698
0.0680
14.67
tan
14.30
sin
0.9986
0.9987
cos
0.0523
0.0506
tan
sin
cos
tan
19.08
0.9994
0.0349
28.64
19.74
0.9995
0.0332
30.14
sin
0.9998
0.9999
cos
0.0175
0.0157
tan
Function
57 29
63.66
11.91
0.9978
0.0663
15.06
0.9988
0.0488
20.45
0.9995
0.0314
31.82
0.9999
0.0140
71.62
12'
10.02
10.20
0.9966
0.0819
10.39
0.9923
0.1236
8.0285
0.9940
0.1097
0.9942
0.1080
0.9943
0.1063
8.9152
9.0579
9.2052
9.3572
0.9956
0.0941
0.9957
0.0924
0.9959
0.9960
10.58
0.9969
0.9971
0.9972
0.0767
0.0750
13.00
0.9979
0.9981
0.9982
0.0645
0.0628
0.0610
0.0593
0.9989
0.0471
21.20
0.9996
0.0297
0.9990
0.0454
22.02
0.9996
0.0279
35.80
33.69
0.9999
0.0122
0.9999
0.0105
95.49
81.85
18'
77
10.78
0.0785
12.71
24'
16.35
0.9990
0.0436
22.90
0.9997
0.0262
38.19
16.83
0.9991
0.0419
23.86
0.9997
0.0244
40.92
1.000
1.000
0.0087
0.0070
114.6
30'
0.1409
7.0264
0.9921
0.0802
15.89
6.2432
0.1253
7.9158
0.9980
15.46
0.1444
0.9968
12.43
12.16
4.6252
0.1925
5.0970
0.1977
4.9594
0.9888
0.1495
6.6122
sin
Degs.
4.1653
0.9740
0.2267
4.2972
4.0408
sin
89
0.9736
0.2284
0.9724
0.2334
0.2385
cos
sin
88
0.2300
0.2351
4.1335
0.9711
0.2402
tan
87
0.9732
0.2317
4.1976
0.9720
0.2368
0.9707
sin
86
0.9728
0.9715
3.7848
0.2538
3.8118
cos
85
3.9812
0.9673
0.2554
4.0108
84
3.9520
3.8667
0.9668
0.2571
3.7583
0.9744
83
3.9232
3.8391
0.9664
tan
82
3.8947
0.2487
0.9659
0.2588
0.9703
0.2419
81
0.9699
0.2436
0.9686
0.2504
sin
cos
sin
80
0.2453
0.9681
0.2521
0.4°
3.7321
79
0.9694
0.2470
0.9677
0.3°
tan
78
0.9690
0.7°
0.2°
75
77
0.9°
0.6°
0.1°
Function
76
0.8°
0.5°
0.0°
Degs.
143.2
36'
13.30
0.9983
0.0576
17.34
0.9992
0.0401
24.90
0.9997
0.0227
44.07
1 000
0.0052
191.0
42'
0.0906
10.99
0.9973
0.0732
13.62
0.9984
0.0558
17.89
0.9993
0.0384
26.03
0.9998
0.0209
47.74
1.000
0.0035
286.5
48'
0.0889
11.20
0.9974
0.0715
13.95
0.9985
0.0541
18.46
0.9993
0.0366
27.27
0.9998
0.0192
52.08
1.000
0.0017
573.0
54'
the Allied Electronics Library
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THIS IS STEREO HIGH FIDELITY. The com
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79
ul.-ALLIED
RAD o
INDEX
Abbreviations
23, 67
Admittance
Ohm's Law
17
Algebraic Formulas
Algebraic Symbols
5
4
Attenuator Networks
Peak Current
Peak Volts
7-9
Average Current
Average Volts
22
22
Phase Angle
Pilot Lamp Data
Power Factor
Capacitance
Capacitors
12, 20, 33-36, 60-63
12, 60-63
Coefficient of Coupling
Coils
Constants
20
17
R-F Coils
4, 12, 22
Conversion Chart
Coulombs
37
12
Coupled Inductance
Coupling Coefficient
12
13
Diagram Symbols
Dielectric Constants
Exponents and Radicals
Fractional Inches
Frequency
Inches to Millimeters
12
Schematic Symbols
Shunts
60
13, 33-36
68-69
12
26-27
Solution of a Quadratic
5
Speaker Matching—70 Volt System. .11
Steady State I and E
19
Susceptance
17
Symbols
23, 67-69
4
13, 20, 33-36
14-16, 20
4
Transient I and E
18-19
Transistor Circuits
24-25
Transistor Formulas
70-71
38-40
4
Multipliers
5
60-66
Self-Inductance
5
4
Millimeters to Inches
Mixers
22
Resonance
68-69
Mathematical Constants
Metric Relationships
22
R.M.S. Volts
Resistors
5-6
Mathematical Symbols
Meter Formulas
30, 32-33
Reactance
13, 33-36
Resistance
12, 26, 28-29
Resistor-Capicator Color Codes. . .60-63
Inductance
12, 13, 30, 32-36
Interchangeable Batteries
58-59
Interchangeable Tubes
41-55
Log Tables
Logarithms—How to Use
14
5
R.M.S. Current
Radio Color Codes
Growth of E & I in LCR Circuits. 18-19
Impedance
22
22
28
56-57
28
Radicals and Exponents
Decay of E & I in LCR Circuits. . . 18-19
Decibels
20
"Q" Factor
Quadratic Equations
13
30, 32-33
Concentric Transmission Lines
Conductance
28-29
Open-Air Transmission Lines
26-27
37
4
9
23
Transistor Symbols
23
Transmission Lines
20
Trigonometric Formulas
Trigonometric Functions
Trigonometric Tables
21
21
72-77
Vacuum Tube Constants
22
Vacuum Tube Formulas
22
Vacuum Tube Symbols
Vertical Antenna, Capacitance
22
'20
26-27
Minimum Loss Pads
10
Wavelength
13, 20
Mutual Inductance
13
Wire Tables
30-31
Consult Your ALLIED Catalog
for Everything in Radio, Television and Industrial Electronics
80