Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 123
elays used in the operation of the printer, also most of the re-sistance units and some of the condensers used in the apparatus, are mounted in a metalbox, which for the sake of convenience is connected to the printer mechanism by meansof spring clips. Two of the relays used in the relay bank are… … Fig. 6 13. In order that we may gain a clear understanding of the operation of the selectingrelays and the auxiliary apparatus in conjunction with the selecting mechanism of theprinter which we have already described, let us refer to Figure 7. This is a schematicdrawing of the printer and selecting…
Telegraph
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