Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 652
the key ; the duplex system implies a hemerelay and sounder unresponsive, but a distant relay responsive to the move-ments of the home key ; and this result is effected by a differential arrange-ment of magnet coils, of which the extra magnet coils in the Weiny-Phillipsrepeater furnished an… … EAST THEORETICAL DIAGRAM OF POLAR DUPLEXbalancing switch omittedFig. 5. is established when tbe resistance of the wire marked —> <— in the diagramis balanced by the resistance of a set of adjustable coils in a rheostat markedR. This is called the ohmic balance (from ohm, the unit of…
Electrical engineering
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