Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 20
ML-LINE W|RE = I550 80v.=P, … -WVW 1 AL=2 0 90W fl. -^■ PIFF POLAR RELAY. 400t40 0 WYOMING 80 v. =P3 Fig 8 Page 6 Section 1 Multiplex System 263-C 16. In Figure 9 is shown the current distribution when the keys at both stations arein the spacing position. The conditions then differ from those shown in Figure 7 only inthe…
Telegraph
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