TY  - GEN
AU  - Karl R. Spangenberg
TI  - Vacuum Tubes / 
U1  - 621.381512,SPA 
PY  - 1948///
CY  - New York
PB  - Mc Graw- Hill
KW  - Telecommunication Engineering
N1  - 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)
ER  -