Telegraphic Connections: Embracing Recent Methods in Quadruplex Telegraphy (Classic Reprint) - Tapa dura

Sinopsis

Excerpt from Telegraphic Connections: Embracing Recent Methods in Quadruplex Telegraphy

It has been the aim to make plain the working details of the different forms of apparatus rather than fill the pages with pictures of instruments, with the general appearance of which the telegrapher is already familiar.

It sometimes happens that if one undertakes to trace the wiring on a diagram he soon finds himself in a maze of cross-connections; or, if he finds his way out, he arrives at a thumb-screw, and can go no farther. It has been the effort to minimize the number of cross-connections in these plates, to carry the wires through the instruments; and in order that the reader may the more readily grasp the idea in the different diagrams two, and in some plates three, distinct colors have been used.

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