The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 514
rig.Z85]f\/ave Form of Current on a TelephoneLine Transmittina the dound of aas in father … ., hiigXOb.J-lntenna Current | vin Hadiotelephom JransmittinatheWoound of a* as m father] ]ModuJatea rradio-frequencyWave which can be received with Simple Detector
Telegraph, Wireless · Radio
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