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 267
hiy R, we can control at will the armature ofsounder S. In speaking of tlie relay R, Fig. 3, and its armature, th&remark was made that in it we have a telegraph key in form thosimplest and most easily understood, but not the most easily oper-ated. Remove the dotted line wires from the… … LCARNEfiS OUrr/T these, signalling to considerable distances can be carried on, andthe medium for it is the Morse Telegrajib Code, whose elementsand their combinations to form letters are now to be taken up. THE nORSE CODE. It is taken for granted now that the student is i)rovidcd witlia learners…
Electrical engineering
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