Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 452
-/^/^WW/////////////////////////////////.//////^^^^^ Fig. 3- … Fig. 4.Plate XXV.—Inductorium of Hutin & LeBlanc. 1900. 440 Colics: [j. f. I., 2 /T 48 from the one preceding. This is arranged, however, not by-varying the winding of the secondary coils, but that of theprimary, along with the areas of the respective cores, theprimary turns being in inverse…
Science · Technology · Meteorology · Patents
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer01inte-287-119.webp)