Fundamentals of radio-valve technique : an introduction to the physical fundamentals, properties, designs and applications of radio-receiver and power-amplifier valves covering the technical development reached up to December, 1947 / by J. Deketh ; translated by F.G. Garratt. Deketh, Jan. Vacuum-tubes. TK6565.V3 D4522 621.384132 DEF Includes bibliographical references and index. Eindhoven : N.V. Philips' Gloeilampenfabrieken, Technical and Scientific Literature Dept., 1949. 1949. 1949 Text 022, 535 p. : eng Philips' technical library. Series of books on electronic valves, book 1 Philips' Gloeilampenfabrieken. Technical library. Series of books on electronic valves ; book 1.ʾ.