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Bell System Technical Journal, Volume 28
Volume 28, Number 1, January 1949
- Walter J. Albersheim:

Propagation of TE01 waves in curved wave guides. 1-32 - John R. Pierce, William B. Hebenstreit:

A new type of high-frequency amplifier. 33-51 - A. V. Hollenberg:

Experimental observation of amplification by interaction between two electron streams. 52-58 - Claude E. Shannon:

The synthesis of two-terminal switching circuits. 59-98 - Sloan D. Robertson:

A method of measuring phase at microwave frequencies. 99-103 - Stephen O. Rice:

Reflection from corners in rectangular wave guides - Conformal transformation. 104-135 - Stephen O. Rice:

A set of second-order differential equations associated with reflections in rectangular wave guides - Application to guide connected to horn. 136-156
Volume 28, Number 2, April 1949
- R. A. Leconte, D. B. Penick, C. W. Schramm, A. J. Wier:

A carrier system for 8000-cycle program transmission. 165-180 - C. H. Dagnall, P. W. Rounds:

Delay equalization of eight-kilocycle carrier program circuits. 181-195 - F. S. Farkas, F. J. Hallenbeck, F. E. Stehlik:

Band pass filter, band elimination filter and phase simulating network for carrier program systems. 196-220 - D. A. Alsberg, D. Leed:

A precise direct reading phase and transmission measuring system for video frequencies. 221-238 - John Bardeen, Walter H. Brattain:

Physical principles involved in transistor action. 239-277 - H. M. Trueblood, E. D. Sunde:

Lightning current observations in buried cable. 278-302 - W. R. Bennett, Liss C. Peterson:

The electrostatic field in vacuum tubes with arbitrarily spaced elements. 303-314 - T. Slonczewski:

Transconductance as a criterion of electron tube performance. 315-328
Volume 28, Number 3, July 1949
- William Shockley, G. L. Pearson, J. R. Haynes:

Hole injection in germanium - Quantitative studies and filamentary transistors. 344-366 - R. M. Ryder, R. J. Kircher:

Some circuit aspects of the transistor. 367-400 - Conyers Herring:

Theory of transient phenomena in the transport of holes in an excess semiconductor. 401-427 - John Bardeen:

On the theory of the A-C. impedance of a contact rectifier. 428-434 - William Shockley:

The theory of p-n junctions in semiconductors and p-n junction transistors. 435-489 - C. B. Feldman, W. R. Bennett:

Band width and transmission performance. 490-595
Volume 28, Number 4, October 1949
- F. R. Dennis, E. P. Felch:

Reactance tube modulation of phase shift oscillators. 601-607 - William W. Mumford:

A broad-band microwave noise source. 608-618 - Sloan D. Robertson:

Electronic admittances of parallel-plane electron tubes at 4000 megacycles. 619-646 - Sloan D. Robertson:

Passive four-pole admittances of microwave triodes. 647-655 - Claude E. Shannon:

Communication theory of secrecy systems. 656-715 - A. P. Brogle:

The design of reactive equalizers. 716-750

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