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Wire Chart



AWG            D.C. OHMS          WIRE DIAM
SIZE          PER 1000 FT          INCHES
                 
 1             .1264               .2893
 2             .1593               .2576
 3             .2009               .2294
 4             .2533               .2043
 5             .3195               .1819
 6             .4028               .1620
 7             .5080               .1443
 8             .6405               .1286
 9             .8077               .1144
 10           1.018                .1019
 11           1.284                .0907
 12           1.619                .0808
 13           2.042                .0720
 14           2.524                .0641
 15           3.181                .0571
 16           4.018                .0508    Approx. Turns
 17           5.054                .0453    Per Inch, Solid
 18           6.386                .0403    Enamel covered
 19           8.046                .0359         27        
 20          10.13                 .0320         29
 21          12.77                 .0285         32
 22          16.20                 .0253         37
 23          20.30                 .0226         44
 24          25.67                 .0201         46
 25          32.37                 .0179         54
 26          41.02                 .0159         58
 27          51.44                 .0142
 28          65.31                 .0126         72
 29          81.21                 .0113
 30         103.7                  .0100         90
 31         130.9                  .0089
 32         162.0                  .0080
 33         205.7                  .0071
 34         261.3                  .0063
 35         330.7                  .0056
 36         414.8                  .0050
 37         512.1                  .0045
 38         648.2                  .0040
 39         846.6                  .0036
 40        1079                    .0031
 41        1323                    .0028
 42        1659                    .0025
 43        2143                    .0022
 44        2593                    .0020
 45        3348                    .00176
 46        4207                    .00157
 47        5291                    .00140

******************************************

 For winding Tesla Secondary coils the general
 consensus is to use number 22 AWG, or larger
 diameter, double Formvar Magnet wire. Often 
 surplus partial spools of odd wire sizes are 
 found, so I took time to post a more complete
 chart of AWG numbers and fractional diameters
 than is usually available.

Richard Quick

... If all else fails... Throw another megavolt across it!