Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 222
OB 4 PRACTICAL RADIO MEASUREMENTS. 211 (6) Example 2.—Calculate the inductance of a coil three inches in diameter, 8 inches inlength, wound closely with No. 26 double silk-covered wire. From the table on page 213 thediameter of No. 26 D. S. C. wire is .02014 inches, hence, 8 n = ■ = 397 turns;… … 2.0 22 iT2-6-i:i~-Scr-Sl. itFig. 231—Curves Showing the Value of a Constant for the Ratio of the Diameter of a Wire to Its Pitch. In the curves of Fig. 230, values of K are given for coils lying between those of infinitelength and those where the diameter is 9J/2 times the length This covers all…
Telegraph, Wireless
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