Handbook for the use of electricians in the operation and care of electrical machinery and apparatus of the U. S. seacoast defenses .. (1904)
United States. War Dept · Washington, Govt. print. off. · leaf 166
160. Copper Oxide. PRIMARY BATTERIES. 117 (e) Bichromate Cell (Fig. 161). 1. Zinc and carbon plates stand in a solution of sulphuric acid and bichromateof potassium or sodium. E — 2.1 volts. R of 6 by 8 inch cell with zinc betweentwo carbon.s = about 0.08 olim. The Grenet zincs are submerged only…
Electric machinery · Searchlights · Coast defenses
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