Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 649
Fig. 420. Fig. 421. varied in twenty-one different grades. In addition, each fly, asa whole, can be varied in three degrees of light power, and eachone of the flies is fitted, as shown in figs. 419 and 420, withthree rows of colored lamps, sixty in each row, so as to enablethe effects of morning or…
Electrical engineering
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
