ELECTRON BALLISTICS IN HIGH-FREQUENCY FIELDS 351 



A. Zacek, "A Method for the Production of Very Short Electromagnetic Waves", Zeitsf. 



Hockfreq., vol. 32, p. 172 (1928). 

 K. Okabe, "Production of Intense Extra-Short Electromagnetic Waves by Split-Anode 



Magnetron", I.E.E. Jour., Japan, 1928, p. 284. See also I.R.E. Proc, vol. 17, p. 652 



(1929); /. R. E. Proc, vol. 18, p. 1748 (1930). 

 K. Kohl, "Continuous Ultra-Short Electric Waves", Ergebnisse der exaktlen N aturioissen- 



schaften, vol. 9, p. 275 (1930). Bibliography of 135 titles. 

 M. J. Kelly and A. L. Samuel, "Vacuum Tubes as High-Frequency Oscillators", Elec. Eng., 



vol. 53, p. 1504, Nov. 1934. 



E. C. S. Megaw, "Electronic Oscillations", Jour. I. E. E. (London), vol. 22, p. 313, April 



(1933). (Bibliography of 47 titles.) 

 G. R. Kilgore, "Magnetron Oscillators for the Generation of Frequencies Between 300 and 

 600 Megacycles", Proc. I. R. E., vol. 24, p. 1140, Aug. (1936). 



B. Papers Dealing With Parallel Plane Electronics 



W. E. Benham, "Theory of the Internal Action of Thermionic Systems at Moderately 

 High Frequencies". 



Part I, Phil. .1/(7?., vol. 5, p. 641, March (1928). 

 Part II, Phil. Mag., vol. 11, p. 457, February (1931). 

 Johannes Muller, "Electron Oscillations in High Vacuum", Hockfreq. u Elek. Akus, vol. 41, 

 p. 156, May (1933). 



F. B. Llewellyn, "Vacuum Tube Electronics at Ultra-High Frequencies", /. R. E. Proc, 



vol. 21, p. 1532, Nov. (1933). 

 C. J. Bakker and G. de Vries, "Amplification of Small Alternating Tensions by an Induc- 

 tive Action of the Electrons in a Radio Valve with Negative Anode", Physica, vol. 1, 

 p. 1045, Nov. (1934). 



C. J. Bakker and G. de Vries, "On Vacuum Tube Electronics", Physica, vol. 2, p. 683, 



July (1935). 



G. Grunberg, "On the Theory of Ooeration of Electron Tubes", Tech. Phys. (U. S. S. R.), 



vol. 3, No. 2, p. 181, Feb. (1936). 



D. O. North, "Analysis of the Effects of Space Charge on Grid Impedance", /. R. E. Proc, 



vol. 24, p. 108, Jan. (1936). 

 W. E. Benham, "A Contribution to Tube and Amphfier Theory," Proc. I. R. E., vol. 26, 



p. 1093, Sept. (1938). 

 F. B. Llewellyn and L. C. Peterson, "Vacuum Tube Networks", Proc. I. R. E., vol. 32, 



p. 144, March (1944). 



C. Velocity Modulation Papers 



A. Arsenjewa-Heil and 0. Heil, "Electromagnetic Oscillations of High Intensity", Zeits f. 

 phys., vol. 95, p. 752, and p. 62, Nov. & Dec. (1935). 

 (English Translation in Electronics, vol. 16, p. 7, July 1943). 



E. Bruche and A. Recknagel, "On the Phase Focusing of Electrons in Rapidly Fluctuating 



Electric Fields", Zeitsf. phys., vol. 108, p. 459, March (1938). 

 W. C. Hahn and G. F. Metcalf, "Velocity-Modulated Tubes" 7. R. E. Proc, vol. 27, p. 106, 



Feb. (1939). 

 R. H. Varian and S. F. Varian, "A High-Frequency Oscillator and Amplifier", Jour. Apl. 



Phys., vol. 10, p. 321, May (1939). 

 W. C. Hahn, "Small Signal Theory of Velocity Modulated Electron Beams", G-E. Rev., 



vol. 42, p. 258, June (1939). 



D. L. Webster, "Cathode Ray Bunching", Jour. Apl. Phys., vol. 10, p. 501, July (1939). 

 W. C. Hahn, "Wave Energy and Transconductance of Velocity-Modulated Electron 



Beams", G-E. Rev., vol. 42, p. 497, Nov. (1939). 

 S. Ramo, "The Electronic Wave Theory of Velocity Modulation Tubes", Proc. I. R. E., 



vol. 27, p. 757, Dec. (1939). 

 J. R. Pierce, "Reflex Oscillators", Proc. I. R. E., vol. ii, p. 112, Feb. (1945). 



D. Graphical Solutions for Velocity Modulation Tubes 



E. Bruche and A. Recknagel, "On the Phase Focusing of Electrons in Rapidly Fluctuating 



Electric Fields", Zeitsf. Phys., vol. 108, p. 459, March (1939). 

 D. M. Tombs, "Velocity-Modulation Beams", Wireless Eng., vol. 17, p. 54, Feb. (1940). 



