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 384
iver, the ordinary sounderand the Morse register. Thethree former appliances are so well known that they need notbe described here. The register is employed where it is desirableto have a permanent record of the received message, and a generalidea may be gained of its construction and operation by… … Fig. 24. Giiarini Tapper. 850 WIRELESS TELEGRAPHY 21
Electrical engineering
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