01231cam a22002771 4500 7900929 BD-DhUL 20150115121300.0 741219s1949 xx 000 0 eng a 51010321 (OCoLC)1117192 DLC NhD DLC BD-DhUL premarc TK6565.V3 D4522 621.384132 DEF Deketh, Jan. 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. Eindhoven : N.V. Philips' Gloeilampenfabrieken, Technical and Scientific Literature Dept., 1949. 022, 535 p. : ill. ; 24cm. Philips' technical library. Series of books on electronic valves, book 1 Includes bibliographical references and index. Vacuum-tubes. Philips' Gloeilampenfabrieken. Technical library. Series of books on electronic valves ; book 1.ʾ. 7 cbc oclcrpl u ncip 19 y-gencatlg ddc BK 31526 31526 0 0 ddc 0 621_384132000000000_DEF 0 NFIC 59428 DUSL DUSL GEN 2015-01-15 Purchased 621.384132 DEF 54739 2015-01-15 2015-01-15 BK