The design and test of a new type of telephone repeating coil (1915)
Turner, Hubert Michael · leaf 22
d. Since the calculations involved were those applying tocoils without iron, in 7/hich the inductance is a function ofthe shape of the coil, reference is here made to the Universityof Illinois Engineering Experiment Station bulletin -To. 53 onInductance of Coils by Professor Morgan Brooks and the… … Fig. 3. Reieren.ce is mafe to equation 17, p&ge 27 of the above-mentioned bulletin, which for convenience is given here. Lm = (0.609 x 1C9 x Cm5/5) / D^5 (l) where 1^ is the maximum inductance in henries, and where Cm,the length of the conduct or, and I),the overall diameter of thewire,…
Telephone · Electric coils · Theses
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