The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting (1894)
Martin, Thomas Commerford, 1856-1924, Tesla, Nikola, 1856-1943 · New York : The Electrical Engineer · leaf 476
s=^r= Fig. 279. … W J Fi<;. 281. Fu!. 280. post -|- tliroiigh the phitc s, carljoii iioldcc s, and up|ur carbonto the lower cMrhoii, :iiid thence by the liohler and a metallic<omiectioli to the \\v\i\ \\. The carltoii hohU-rs are of the usual chniacter, and to insureelectric connections the springs / are…
Electric currents, Alternating · Electrical engineering
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