The standard electrical dictionary : a popular encyclopaedia of words and terms used in the practice of electrical engineering (1898)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · London : Crosby Lockwood and Son · leaf 471
Fig. 293. Resistance Frame. dynamos and the larger or working class of plant. The coils aresometimes connected so that by a switch moving over a row of 30 _ 466 STANDARD BI^ECTRICAIv DICTIONARY. studs one or more can be thrown into series according to the studthe switch is in contact with.… … Fig. 394.HrrroRF s Resistance. Resistance, Hittorfs. A high resistance, often a megohm, com-posed of Hittorf s solution, q. v. It is con-tained in a vertical glass tube near whoseupper and lower ends are electrodes ofmetallic cadmium attached to platinum wires.The cadmium is melted in glass tubes,…
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