THE BELL SYSTEM 



TECHNICAL JOURNAL 



VOLUME XXVIII, 1949 



Table of Contents 

 January, 1949 



Propagation of TEoi Waves in Curved Wave Guides — IV. J .Albersheim . 1 



A New Type of High-Frequency Amplilier— /. R. Pierce and W. B. 



Hebenslreil ^^ 



Experimental Observation of Amplification by Interaction Between 



Two Electron Streams — A. V. Hollenberg 52 



The Synthesis of Two-Terminal Switching Circuits — Claude E. 



Shannon 5 ^ 



A Method of Measuring Phase at Microwave Frequencies — Sloan D. 



Robertson ^^ 



Reflection from Corners in Rectangular Wave Guides— Conformal 



Transformation — S. 0. Rice 104 



A Set of Second-Order Differential Equations Associated with Reflec- 

 tions in Rectangular Wave Guides—Application to Guide Con- 

 nected to Horn— 5. 0. Rice 1>^6 



April, 1949 



A Carrier System for 8000-Cycle Program Transmission— i?. A. 



Leconle, D. B. Penick, C. W. Schramm and A.J. Wier 165 



Delay Equalization of Eight-KiloOycle Carrier Program C^ircuits— C. 



H. Dagnall and P. W . Rounds 181 



Band Pass Filter, Band Elimination Filter and Phase Simulating Net- 

 work for Carrier Program Systems— F. S. Farkas, F. J. Hallenbeck 

 and F. E. Slehlik 1^6 



MAY 1 7 1950 



