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 242
a thermo-electric couple, the heating of whosejunction produces electro-motive force and a current, if on closedcircuit. The elements of a couple are respectively positive andnegative, and most conductors can be arranged in a series accord-ing to their relative polarity. (See Thermo-electric… … ll||l||[j|jV|JJJ^^ Fig. 163. Morse Receiver. of the old Morse receiver type, one using a dry point stylus,which pressing the paper into a groove in the roller above thepaper, gave raised characters in dots and lines. 238 STANDARD EI.BCTRICAI. DICTIONARY. E. M. D. P. Abbreviation for electro-motive…
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