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 493
ding eachother. It is the property utilized in the photophone, q. v. Sounder. In telegraphy an instrument consisting of an electro-magnet with armature attached to an oscillating bar, the rangeof whose movements is restricted by adjusting screws. Thearmature is drawn away from the magnet by a… … Fig. 306. Morse Sounder. armature are drawn back, striking the first mentioned screw with adistinct sound, the back stroke.The sounder is used to receive Morse and analogous character STANDARD ELECTRICAL DICTIONARY. 489 messages. The forward strokes correspond to the beginnings ofthe dots or dashes…
Electricity
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