The standard electrical dictionary; a popular dictionary of words, terms, and phrases, used in the practice of electrical engineering (1897)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, H. W. Henley & co. · leaf 513
affect his own instrument except by sending the equal and 5o8 STANDARD ELECTRICAL DICTIONARY. opposite currents through its coils. When his key is depressedand As key is untouched, he works As receiving instrument. When As key is depressed simultaneously with Bs key, thetwo line currents are in… … Fig. 314. Duplex Telegraph, Differential System Suppose that B is sending a dash, and it begins while As key israised. The line and compensation currents in Bs receiving in-strument neutralize each other and no effect is produced, whileAs receiving instrument begins to register or indicate a…
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