01716    a2200253   4500003000500000005001700005040000900022082001500031100002600046245004000072250002900112260005000141300003000191500071100221538003600932600002600968650001700994942001201011999001901023952010501042952010501147952010501252952010501357Nust20170207153444.0  cNust  a621.381512  aR. Spangenberg , Karl  aVacuum TubescKarl R. Spangenberg ,  aInternational student ed  aNew YorkbMcGraw-Hill Book Company, Incc1948  axvii, 860 pbillusc19 cm  aIntroductions (Page-1) Basic Tubes Types (Page-5) Electrons and Ions (Page-19) Electronic Emission Ions (Page-23) Determination of Potential Fields (Page-58) Laws of Electron Motions (Page-97) The Electrostatic Field of triode (Page-125) Space Charge Effects (Page-168) Triode Characteristics (Page-201) Tetrodes (Page-238) Pentodes (Page-266) Noise in Vacuum Tubes (Page-298) Electrostatic Electron Optics (Page-328) Magnetic Lenses (Page-394) Cathode Ray Tubes (Page-412) Ultra High Frequency Effects in Conventional Tubes (Page-475) Velocity Modulated Tubes or Klystrons (Page-527) Magnetron Oscillators (Page-621) Photoelectric Tubes (Page-675) Special Tubes (Page-701) High Vacuum Practice (Page-747)   aAlmirah No. 130 and Shelf No. 3  aR. Spangenberg , Karl  aVacuum Tubes  2ddccBK  c186609d186609  00102ddc40708NFICaMCSbMCSd2016-12-12l0o621.381512  SPApMCS6178r2016-12-08w2016-12-12yBK  00102ddc40708NFICaMCSbMCSd2016-12-12l0o621.381512  SPApMCS6181r2016-12-08w2016-12-12yBK  00102ddc40708NFICaMCSbMCSd2016-12-12l0o621.381512  SPApMCS6209r2016-12-08w2016-12-12yBK  00102ddc40708NFICaMCSbMCSd2016-12-12l0o621.381512  SPApMCS6210r2016-12-08w2016-12-12yBK