BELL SYSTEM TECHNICAL JOURNAL 



A Single Sideband Musa Receiving System for Commercial Opera- 

 tion on Transatlantic Radio Telephone Circuits — 



F. A. Polkinghorn 306 



JULY, 1940 



Crosstalk in Coaxial Cables — Analysis Based on Short-Circuited 



and Open Tertiaries — K. E. Gould 341 



Crosstalk Between Coaxial Conductors in Cable — 



R. P. Booth and T. M. Odarenko 358 



Compressed Powdered Molybdenum Permalloy for High Quality 



Inductance Coils — V. E. Legg and F. J. Given 385 



High Accuracy Heterodyne Oscillators — T. Slonczewski 407 



Relations Between Attenuation and Phase in Feedback Amplifier 



Design— i/. W. Bode 421 



Analysis of the Ionosphere— i^ar/ K. Darrow 455 



October, 1940 



The Carrier Nature of Speech — Homer Dudley 495 



Manufacture of Quartz Crystal Filters — G. K. Burns 516 



Results of the World's Fair Hearing Tests — 



J. C. Steinberg, H. C. Montgomery and M. B. Gardner 533 

 The Subjective Sharpness of Simulated Television Images — 



Millard W. Baldwin, Jr. 563 

 Cross-Modulation Requirements on Multichannel Amplifiers Be- 

 low Overload — W. R. Bennett 587 



Radio Extension Links to the Telephone System — R. A. Heising. 611 



