Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 308
o post 2 of the j. Remove wire from posts 4 and 5 of the synchronizing unit, splice and connectit to post 6 of the switch R. k. Run new wires shown on Figure 22 as per the following list: * From post marked R on added local block (Bale. Block 2-A) to 18 added lamp. From 18 added lampj:o^25 added… … MOVEP TO POSTSSPECTIVELY. Page 24-A Page 25 Section 7 Multiplex System 263-C
Telegraph
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