Excerpt from Reprint of Sections on Wireless Telegraphy and Wireless Telephony From Practical Physics
488. Wireless telegraphy. Commercial wireless telegraphy was realized in 1896 by Marconi (see opposite p. Eight years after the discovery of Hertzian waves. The essential elements of a tuned wave-train, or spark, system of wireless telegraphy are as follows.
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Zustand: New. KlappentextrnrnExcerpt from Reprint of Sections on Wireless Telegraphy and Wireless Telephony From Practical Physics488. Wireless telegraphy. Commercial wireless telegraphy was realized in 1896 by Marconi (see opposite p. Eight years aft. Bestandsnummer des Verkäufers 2148096746
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