Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 53
Fig. 33. Forsmall rheostats, these zig-zag pieces may be punched out of sheetmetal, but for larger sizes they are generally of cast iron asshown in Fig. 34. The method or assembling these castings is shown in Fig. 35which is a plan of a rheostat similar to that in Fig. 34. The units 28 PRINCIPLES… … Fig. 34.—Cast-iron grid resistance. D Metal Washer F Insulating WasherAlicaTube
Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
