Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity (1905)
American School (Chicago, Ill.) · Chicago : American School of Correspondence · leaf 310
desired. The iiiiuT j);ur of jacks is for piitcliinu;. In luiiidino; upthe switchboard the strip next above the one shown would be 2West and 2 East. Each cord is fitted with an automatic slacktake-up, as shown, and cross-connections are made by means ofsingle cords and connection plugs F and H. To… … ^ „. The outside pair of jacks is used for inserting loops; The disadvantaore in this Fig. 11 of peg E also to cut in test and desk instruments form of switchboard is that the continuity of the wire depends on the perfect contact of the four springs with the pins behind tiiem. Figs. 10, 11, 12 and…
Electrical engineering
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