Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 19
MLLINE WIRE = I550 HgKvw r@- c^=e>ov Fig. 6 … d0v.--U>z wire ML (point T), thus holding the armature on its marking contact: at Wyomingthe corresponding current is from the line wire (point V) to the apex, thus causing theopposite effect of holding the armature on its spacing stop or contact. These positions Page 5 Section 1 Multiplex…
Telegraph
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