R. Spangenberg , Karl creator New York McGraw-Hill Book Company, Inc 1948 International student ed xvii, 860 p illus 19 cm Karl R. Spangenberg , Introductions (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) Almirah No. 130 and Shelf No. 3 R. Spangenberg , Karl Vacuum Tubes 621.381512 20170207153444.0