Abstract
AMONG many recent books under the general heading of electronics, there has been until now no comprehensive account of the basis of the subject, the thermionic cathode. While it would not be true to say that the well-known books by Reimann, T. J. Jones or de Boer are out of date, there have been developments in the past ten years with which both-the student and the technician should be familiar ; none of these books was intended to appeal to the valve designer or to deal with the technique of preparing thermionic cathodes and persuading them to liberate electrons according to the mathematical formulæ. For these reasons any modern account of the theory and practice of such cathodes is to be welcomed.
Les cathodes chaudes
Theorie et pratique. Par Charles Biguenet. Pp. 183. (Paris : Éditions de la Revue d'Optique théorique et instrumentale, 1947.)
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WRIGHT, D. Les cathodes chaudes. Nature 161, 500 (1948). https://doi.org/10.1038/161500a0
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DOI: https://doi.org/10.1038/161500a0