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 381
►- « WIRELESS TELEGRAPHY 17 reversals of the current in the primary of the transformer inducealternating currents in the secondary coil h^vinor the same periodhut (.■nurmously increased potential, the transformer giving about … Fig. 19. Wireless Telegraph Key. 25,000 volts at the secondary terminals. This low-frequency,high-potential current charges the Leyden jars to the limit of theircapacity, when they discharge through the spark-gap of the oscil-lator. 6 is the earthed terminal and 7 the aerial wire. Keys. In order to…
Electrical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
