000			01194 a2200181 4500
003			Nust
005			20230725095325.0
040			_cNust
082			_a621.381512,SPA
100			_aKarl R. Spangenberg _9113802
245			_aVacuum Tubes / _cKarl R. Spangenberg
250			_aAsian Students Edition
260			_aNew York _bMc Graw- Hill _c1948
300			_a860p
505			_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).
650			_aTelecommunication Engineering
942			_2ddc _cBK _k621.381512,SPA
999			_c193532 _d193532