International Library of Technology · Scranton, International Textbook Co. · leaf 510
Simple Board With. Cables.—Fig. 26 illustratesabout the simplest possible type of board equipped with anammeter and terminals for two machines and four circuits.These terminals take the form of sockets or spring jacksmounted on the board, and connections are made betweenthe various receptacles by… … Fig. 26. being distinguished by its letter A or B. The terminalsof the four line circuits are arranged in two rows in theupper part of the board and are marked -\-l, —1, -\-2, —2,-\-3, — 3, -\-4, ~4, each circuit being distinguished by itsnumber 1, 2, 3, or J/.. The ammeter A M is mounted inthe…
Electrical engineering
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