01121cam a22002411  45000010008000000030008000080050017000160080041000330100017000740350019000910400027001100420012001370500021001490820020001701000017001902450283002072600103004903000033005934900077006265040051007036500018007548100107007727900929BD-DhUL20150115121300.0741219s1949    xx            000 0 eng    aa  51010321   a(OCoLC)1117192  aDLCcNhDdDLCdBD-DhUL  apremarc00aTK6565.V3bD452200a621.384132bDEF1 aDeketh, Jan.10aFundamentals of radio-valve technique :ban 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 /cby J. Deketh ; translated by F.G. Garratt.  aEindhoven :bN.V. Philips' Gloeilampenfabrieken, Technical and Scientific Literature Dept.,c1949.  a022, 535 p. :bill. ;c24cm.0 aPhilips' technical library. Series of books on electronic valves, book 1  aIncludes bibliographical references and index. 0aVacuum-tubes.2 aPhilips' Gloeilampenfabrieken.bTechnical library.tSeries of books on electronic valves ;vbook 1.ʾ.