Abstract
THIS book is one of a series of manuals covering a range of subjects suited to the needs of aeronautical students. It is of the nature of an elementary text-book, illustrated occasionally with descriptions of typical experiments, and provided at the end of each chapter with a series of exercises to test the progress of the reader's knowledge, the scope of the book is more than is indicated by the title, since no prior knowledge of electricity is assumed, and the first half of the manual describes the fundamental properties of electric currents, how these are produced, and the heating, magnetic and chemical effects that result from their use. The notion of electric charge, is not utilized until Chapter 6, on condensers, is reached; and following this the nature of alternating currents is described and the manner in which these currents are affected by circuits containing inductance and capacitance. A chapter on waves describes the production of electromagnetic radiation from circuits carrying alternating currents of radio-frequency, and the main phenomena accompanying the transmission of wireless waves are dealt with very briefly. Five chapters in the later portion of the book describe the main facts concerning thermionic valves and the manner in which these are used for the generation of oscillations and for detection and amplification in wireless receivers. Other chapters deal with the use of aerials and feeders, and the methods of modulating the waves for signalling purposes.
Basic Radio
By C. L. Boltz. (Nelson's Aeroscience Manuals.) Pp. 272. (Edinburgh and London: Thomas Nelson and Sons, Ltd., 1943.) 5s. net.
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Basic Radio. Nature 153, 237 (1944). https://doi.org/10.1038/153237a0
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DOI: https://doi.org/10.1038/153237a0