Telegraph engineering : a manual for practicing telegraph engineers and engineering students (1922)
Hausmann, Erich, 1886- · New York : D. Van Nostrand Company · leaf 85
hms. The joint re- 70 TELEGRAPH ENGINEERING sistance of the paths from the points ^ or ;y to ground atthe corresponding station is then 600 ohms (calculatedaccording to equation (9) following); thus the resistancesof the artificial Hnes are correct, viz. 1900 + 600 = 2500ohms. The steady currents,… … Fig. 17. with the scheme of Fig. 17, the + sign signifying a cur-rent flowing upwards or toward the right, while — denotesa current flowing downwards or toward the left. The starsrepresent the operation of relays. CURRENTS IN BRIDGE DUPLEX CIRCUIT Condition i 0 .0 (in4— »4 -^8 0 -I—— 13 3 —13 —35…
Telegraph
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