Wire Information

• Copper Wire Specifications
  
  
• Teflon Coated, Stranded Wire Specifications
  
  
• Hookup Wire Color Code
  
  

                                                                    
                                 Ohms                         
Wire         Enamel Wire Coating per       at         British
Size  Diam   Turns/Linear Inch*  1000 ft.  700 CM     SWG
(AWG) (Mils) Single Heavy Triple 25 deg C  per Amp**  no.
----- ------ ------ ----- ------ --------- ---------- --------
  01. 289.3                         0.1239 119.564      01
  02. 257.6                         0.2563  94.797      03
  03. 229.4                         0.1971  75.178      04
  04. 204.3                         0.2485  59.626      05
  05. 181.9                         0.3134  47.268      07
  06. 162.0                         0.3952  37.491      08 
  07. 144.3                         0.4981  29.746      09
  08. 128.5                         0.6281  23.589      10
  09. 114.4                         0.7925  18.696      11
  10. 101.9                         0.9987  14.834      12
  11.  90.7                         1.2610  11.752      13
  12.  80.8                         1.5880   9.327      14 
  13.  72.0                         2.0010   7.406      15
  14.  64.1    15.2  14.8   14.5    2.5240   5.870      16
  15.  57.1    17.0  16.6   16.2    3.1810   4.658      18
  16.  50.8    19.1  18.6   18.1    4.0180   3.687      18
  17.  45.3    21.4  20.7   20.2    5.0540   2.932      19
  18.  40.3    23.9  23.2   22.5    6.3860   2.320      20
  19.  35.9    26.8  25.9   25.1    8.0460   1.841      21
  20.  32.0    29.9  28.9   27.9   10.1280   1.463      22
  21.  28.5    33.6  32.4   31.3   12.7700   1.160      23
  22.  25.3    37.6  36.2   34.7   16.2000   0.914      24
  23.  22.6    42.0  40.3   38.6   20.3000   0.730      25
  24.  20.1    46.9  45.0   42.9   25.6700   0.577      26
  25.  17.9    52.6  50.3   47.8   32.3700   0.458      27
  26.  15.9    58.8  56.2   53.2   41.0200   0.361      29
  27.  14.2    65.8  62.5   59.2   51.4400   0.288      30
  28.  12.6    73.5  69.4   65.8   65.3100   0.227      31
  29.  11.3    82.0  76.9   72.5   81.2100   0.182      33
  30.  10.0    91.7  86.2   80.6  103.7100   0.143      34
  31.   8.9   103.1  95.2         130.9000   0.113      36
  32.   8.0   113.6 105.3         162.0000   0.091      37
  33.   7.1   128.2 117.6         205.7000   0.072      38
  34.   6.3   142.9 133.3         261.3000   0.057      38_ 39
  35.   5.6   161.3 149.3         330.7000   0.045      39_ 40
  36.   5.0   178.6 166.7         414.8000   0.036      41
  37.   4.5   200.0 181.8         512.1000   0.029      42
  38.   4.0   222.2 204.1         648.2000   0.023      43
  39.   3.5   256.4 232.6         846.6000   0.018      44
  40.   3.1   285.7 263.2        1079.2000   0.014   
  41.   2.8   322.6 294.1        1323.0000   0.011   
  42.   2.5   357.1 333.3        1695.0000   0.009   
  43.   2.2   400.0 370.4        2143.0000   0.007   
  44.   2.0   454.5 400.0        2593.0000   0.006   
  45.   1.8   526.3 465.1        3348.0000   0.004   
  46.   1.6   588.2 512.8        4207.0000   0.004   


 * Figures given are approximate only; insulation thickness varies with
   manufacturer.
** Current Carrying Capacity at Continuous Duty:  700 CM (circular mils)
   per ampere is a satisfactory design figure for small transformers, but
   temperature values from 500 CM to 100 CM are commonly used. Maximum
   wire of 212 def F (100 deg C) with an ambient temperature of 135 deg F
   (57 deg C).

                       Turns per Linear Inch**
Size Strands*           UL Style No. 
                     1180   1213   1317 
____ ________       ______ ______ ______
 16  19 x 29         11.2
 18  19 x 30         12.7
 20   7 x 28         14.7   17.2
 20  19 x 32         14.7   17.2
 22  19 x 34         16.7   20.0   23.8
 22   7 x 30         16.7   20.0   23.8
 24  19 x 36         18.5   22.7   27.8
 24   7 x 32                22.7   27.8
 26   7 x 34                25.6   32.3
 28   7 x 36                28.6   37.0
 30   7 x 38                31.3   41.7
 32   7 x 40                       47.6

 Wire     Type of Circuit 
 Color    
 Black    Grounds, grounded elements and returns 
 Brown    Heaters or filaments, off ground 
 Red      Power supply B plus 
 Orange   Screen grids and base 2 of transistors 
 Yellow   Cathodes and transistor emitters 
 Green    Control grids, diode plates, and base 1 of transistors 
 Blue     Plates and transistor collectors 
 Violet   Power supply, minu leads 
 Gray     AC power line leads 
 White    Bias supply, B or C minus AGC