Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 341
ers original electrodes contained compounds of calcium,strontium, magnesium, etc., as well as boracic acid. Electrodes asemployed in the various lamps today differ greatly in their make-up.Some use impregnated carbons; others use carbons with a core con-taining the flaming materials; and metallic… … ELECTRIC LIGHTING 41 Color of Arc. The color of the hght from the flaming arc isyellow when calcium salts are used as the main impregnating com-pound and many of the lamps installed use electrodes giving a yellowlight. By employing more strontium, a red or pink light is produced;while if a white…
Electrical engineering
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