Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 316
s on the front of theadded retardation resistance box. 1. Connect the three terminals on the back of the added retardation resistancebox to the corresponding terminals on the radial arm rheostat.These changes are shown in Figure 23. m. All wiring changes except those mentioned in k and 1 are shown… … INTER- CONNECTINGBLOCK LINE NO. 2. r POTTEP LINES SHOW WIRES TO BE REMOVEP HEAVY LINES SHOW NEW WIRES. LISHT LINES SHOW OLP WIRES NOT PISTURBEP. J GENERATORS FOR METALLICCIRCUIT OPERATION Fig. 23 51. A set modified as described in the preceding paragraphs may be operated in theusual manner as a…
Telegraph
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