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Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics

Issue 2 • May 1960

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Displaying Results 1 - 22 of 22
  • Tubes or transistors: A realistic assessment

    Publication Year: 1960, Page(s):81 - 85
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (920 KB)

    The popular notion that transistors will undoubtedly replace vacuum tubes in the near future has been widely publicized partly because of the natural enthusiasm and optimism of the many new firms starting into the business of designing and manufacturing semiconductor devices. There is, of course, no doubt that transistors will take over some of the application areas previously served by tubes, and... View full abstract»

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  • The empretron, a mercury pool arc tube allowing operation at repetition rates in the kilocycle range

    Publication Year: 1960, Page(s):85 - 91
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1130 KB)

    The empretron is a new mercury pool arc tube for switching applications. The arc between the mercury pool cathode and the main anode is initiated by a vacuum spark. The spark discharge occurs between two continuously replenishable electrodes, one being an electrode partly immersed in the mercury pool and the other, the starter electrode, a mercury reservoir supported above the mercury pool. Starti... View full abstract»

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  • Potentials in D-C corona fields

    Publication Year: 1960, Page(s):91 - 99
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1430 KB)

    A probe method has been devised for measuring potentials in d-c corona fields which are uniform for a short distance in one direction. In unipolar corona, a probe supported by perfect insulators assumes a potential sufficiently above the space so that no more ions can reach the probe. For a cylindrical probe with its axis along an equipotential, this excess or ¿error potential¿ is proportional t... View full abstract»

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  • Rectifier unblocking from a generalized analysis of self-saturating magnetic amplifiers

    Publication Year: 1960, Page(s):99 - 105
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (998 KB)

    The unblocking of the self-saturating gate rectifier of the reresetting core in magnetic-amplifier circuits is a well-known phenomenon. Circuit behavior during this unblocked period, a condition sometimes called gate limited reset, may result in appreciably different response times and different gains than would otherwise be expected. The purpose of this paper is to derive analytic predictions of ... View full abstract»

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  • Recent developments on magnetic-coupled multivibrators

    Publication Year: 1960, Page(s):106 - 112
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1192 KB)

    In a static d-c to a-c converter employing a saturating transformer with rectangular-hysteresis-loop core material in conjunction with two switching transistors (magnetic-coupled multivibrators), the oscillation frequency is linearly proportional to the d-c supply voltage. This fact is significant with regard to telemetering-transducer applications. However, the linear relation between d-c input v... View full abstract»

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  • Sparkover as influenced by surface conditions in D-C Corona

    Publication Year: 1960, Page(s):112 - 118
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1158 KB)

    Sparkover between clean electrodes has been investigated extensively but it is found that sparkover between contaminated electrodes exhibits very different results. With corona from a clean metal point to a plane, sparkover occurs at a considerably lower voltage if the point is positive.1 Because of this, it is frequently assumed that positive corona will always result in the lowest sparkover volt... View full abstract»

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  • Automation of computer panel wiring

    Publication Year: 1960, Page(s):118 - 125
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1016 KB)

    The design of new electronic computers has become such a complex task that manual methods are no longer adequate. To help design new series of data processing machines now under development, International Business Machines Corporation (IBM) is using a system of computer programs written for the 704 and 705 data processing machines. Referred to as the ¿design mechanization¿ programs, these comput... View full abstract»

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  • Symmetrical frequency multiplier circuits

    Publication Year: 1960, Page(s):125 - 134
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1419 KB)

    In recent times there has been considerable renewed interest in the use of static magnetic cores to produce power at a multiple of the frequency of a power source. Generally in these circuits, nonlinear magnetic reactors are connected in a symmetrical multiphase fashion, using the cores to produce harmonics and using symmetrical interphase connections to isolate desired groups of harmonics without... View full abstract»

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  • Locking range of an oscillator for different nonlinearities

    Publication Year: 1960, Page(s):134 - 136
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    Dependence of the locking range of an oscillator on the character of the stabilizing nonlinearity is studied in this paper and it is shown that a lower order nonlinearity provides a wider range. View full abstract»

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  • Current-voltage relationships in negative pulsed corona

    Publication Year: 1960, Page(s):136 - 139
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    Some interesting properties of negative pulse corona have been noted by several investigators.1,2 Among these properties are sparkover voltages and pulse currents considerably above d-c values. Such properties are desirable for those applications, such as electrostatic precipitation, where maximum corona loss may be sought. A more detailed study of negative pulse corona is therefore pertinent. View full abstract»

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  • Voltage transients due to arc extinction

    Publication Year: 1960, Page(s):139 - 144
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1075 KB)

    High transient voltages may be developed in equipment associated with gas conduction tubes when there is a sudden cessation or change in the magnitude of the current that is being conducted through the tube. The conditions for the occurrence of this phenomenon have received considerable attention from those working in the field of gas conduction tubes as well as those who have applied such devices... View full abstract»

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  • Generalized brillouin flow

    Publication Year: 1960, Page(s):144 - 148
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (807 KB)

    The 1945 paper by Brillouin1 presented an exact solution to the problem of space charge flow of electrons in a magnetic field. As is well known, this solution demonstrates the possibility of an electron beam of cylindrical or rectangular cross section in which the repelling forces due to the space charge are exactly balanced by the magnetic field forces so that the beam maintains its shape for an ... View full abstract»

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  • Education for expanding horizons in electric power

    Publication Year: 1960, Page(s):149 - 154
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1202 KB)

    To recall the undergraduate education of the writer's generation is to see evidence that engineering education was based on the belief that the engineering curriculum of that period would serve him throughout most of his professional lifetime. Many of the professors teaching at that time had a firm idea of what their students needed to know in order to engage in careers in the professional world. ... View full abstract»

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  • Development and application of time-division multiplexing telemetering equipment for data transmission on an electric power system

    Publication Year: 1960, Page(s):155 - 159
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (806 KB)

    In the fall of 1957 the Tennessee Valley Authority (TVA) began preliminary work toward increasing the number of telemeter readings by use of existing telemeter circuits with a minimum of modifications and additions. The additional channels were used to provide the power-system dispatchers with data that were normally received by telephone. The initial objective was to transmit the load readings of... View full abstract»

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  • A new impulse metering system

    Publication Year: 1960, Page(s):159 - 163
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (968 KB)

    The increasing number of power loads in the 100-mw (megawatt) and higher ranges with the attendant problems of metering and totalizing several supply sources has disclosed the inability of much of the present impulse-operated metering equipment to render the dependable, accurate, and maintenance-free service required. View full abstract»

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  • Design and performance characteristics of a high-speed wide-chart recorder

    Publication Year: 1960, Page(s):163 - 170
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1115 KB)

    During the past decade, the requirements for null-balance instruments have greatly changed. Dynamic testing applications have increased the need for accurate, high-speed measuring devices. Specifications such as a span of 50 millivolts and full-scale response time of 5 seconds are supplemented with requirements for a span of 1.0 millivolt and a full-scale response time of less than 0.5 second. Suc... View full abstract»

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  • A power-line transient recorder

    Publication Year: 1960, Page(s):170 - 173
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (698 KB)

    Those who have been associated with the industry during recent years have witnessed a most progressive expansion and improvement of electric power generation and distribution facilities. This growth has been accompanied and perhaps preceded in many instances, by improvements in instrumentation techniques and equipment. The recorder described here has capabilities which exceed those of similar reco... View full abstract»

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  • Dial-selected industrial television for ticket reservation facilities

    Publication Year: 1960, Page(s):174 - 177
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (770 KB)

    About 6 years ago Pennsylvania Railroad found that an improvement in the method of handling ticket sales and reservations was necessary in order to decrease the time and effort required to process ticket sales. In the following years, they designed and built new ticket facilities at Philadelphia and Pittsburgh, Pa., experimenting with new ideas and new equipment until they had a system operating w... View full abstract»

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  • A military 4-wire field telephone incorporating an electronic signalling system

    Publication Year: 1960, Page(s):177 - 183
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1173 KB)

    A new field telephone has been designed for use with the 4-wire electronic switchboards now being developed for the U.S. Army Signal Corps. This local battery instrument incorporates new features in systems applications. All telephone signalling to and from the switchboard is accomplished on a voice frequency basis, thereby providing compatibility with radio and wire carrier. The digit tone signal... View full abstract»

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  • A delay distortion simulation set

    Publication Year: 1960, Page(s):183 - 185
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (597 KB)

    The delay simulator is a test instrument which produces delay as a function of frequency in the voice frequency range: 300¿3,300 cps (cycles per second). Its primary function is to simulate the delay distortion of Bell System transmission facilities, including open wire, loaded cable, and carrier systems. This is accomplished by combining four variable delay characteristics. The wide variety of d... View full abstract»

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  • Redstone arsenal closed-circuit educational television system

    Publication Year: 1960, Page(s):185 - 190
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1022 KB)

    The redstone arsenal at Huntsville, Alabama, is now pioneering in fields other than missile development. To illustrate this fact, the U. S. Army has had in operation for slightly over a year a unique and extensive educational TV (television) network. This network, with its associated administration, resembles very closely a nationwide broadcasting studio. View full abstract»

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  • An omnidirectional circular antenna array excited parasitically by a central driven element

    Publication Year: 1960, Page(s):190 - 192
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (474 KB)

    There is a continuing practical need for antennas which radiate a pattern which is omnidirectional in azimuth, but with a specified shape in the vertical direction. One example is that of a broadcast station, where the radiated power should be concentrated along the ground. Conventional solutions of this problem make use of an array of colinear elements, or of sectionalized elements, or of top-loa... View full abstract»

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Aims & Scope

This Transactions ceased publication in 1963. The current retitled publication is  IEEE Transactions on Communications.

Full Aims & Scope