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 385
Fig. 24. Giiarini Tapper. 850 WIRELESS TELEGRAPHY 21 … Morse Regisiei-.Fig. 25. When a current is iiassino- tliroiiiili the coils of the electromagnet,the inked disc, which is attached to the armature, is drawn intocontact with the paper and held there until the current ceases; inthis way the dot and dashcode is formed and im-printed on the tape. The…
Electrical engineering
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