The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 71
ron batteries, containing alkalineelectrolyte. Lead batteries consist of lead plates immersed in a solutionof sulphuric acid. The jar or container for portable batteriesof this type is usually of a hard-rubber compound, but largerbatteries, which are used in a fixed position, are generallycontained… … COVER NEGATIVEPLATE RUBBERJAR FOOT OF NEGATIVE PLATE SEDIMENT SPACES Flu. 29.—Storage cell. Lead plate acid electrolyte type. STORAGE BATTERIES. 69 the portable types of batteries are usually of the pasted variety. These consist of a flat frame or grid, which is madeof an alloy of lead and…
Telegraph, Wireless · Radio
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