Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 234
t attaches to the Poulsen systemby reason of the fact that the development of the arc method of pro-ducing sustained high-frequency oscillations was largely due to theinitiative of this investigator. Mention was made of the Poulsenmodification of the singing arc in its application to… … rig. 17. Cirriiits of Poulsen System former, in the primary of which is placed a local battery and tele-phone transmitter. The aerial is directly coupled, and two oil-condensers are so located as to prevent the direct current fromreaching the aerial or ground. The magnetic blow-out devicesare not…
Electrical engineering
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