Includes the top 50 most frequently accessed documents for this publication according to the usage statistics for the month of

  • Abridgment of two-reaction theory of synchronous machines generalized method of analysis — Part I

    Publication Year: 1929, Page(s): 194
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (234 KB)

    STARTING with the basic assumption of no saturation or hysteresis, and with distribution of armature phase m. m. f. effectively sinusoidal so far as regards phenomena dependent upon rotor position, general formulas are developed for current, voltage, power, and torque under steady and transient load conditions. Special detailed formulas are also developed which permit the determination of current ... View full abstract»

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  • Synchronous machines I — An extension of Blondel's two-reaction theory

    Publication Year: 1926, Page(s):974 - 987
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (3390 KB)

    Blondel treated salient pole machines by resolving the fundamental space component of m. m. f. along the two axes of symmetry the direct axis of the pole, and the quadrature axis between poles. Using this idea and applying harmonic analysis, Blondevs theory has been extended in the present paper to a comprehensive system of treatment in which the effect of harmonic m. m. fsy as well as the fundame... View full abstract»

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  • Abridgment of parallel operation of transformers: Whose ratios of transformation are unequal

    Publication Year: 1929, Page(s):809 - 812
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (951 KB)

    An equation is developed for use in meeting emergency conditions which necessitate the paralleling of transformer banks whose impedances expressed in percentage are not equal. This equation makes it possible to calculate what change should be made in the ratio of transformation of the bank with the lower percentage impedance in order to prevent its being overloaded when the total load approaches t... View full abstract»

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  • Super synchronous motor

    Publication Year: 1924, Page(s): 193
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (563 KB)

    The name “super synchronous” has been given to a certain type of motor, not because the motor operates above synchronous speed but because it has the ability to develop super torque in starting. There has been a demand for a long time for some type of synchronous motor that would develop during the starting cycle a torque as great or greater than that of an induction motor of the wou... View full abstract»

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  • Transmission stability: Analytical discussion of some factors entering into the problem

    Publication Year: 1925, Page(s):951 - 961
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2583 KB)

    The subject of stability has been much discussed lately, because it has an important bearing on future large power developments. In the early stages of a large program, such as the proposed superpower program, good engineering and common-sense dictate that each step should be very carefully considered from all points of view, since a blunder or failure to give proper weight to some important facto... View full abstract»

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  • The largest diesel generator

    Publication Year: 1927, Page(s): 478
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (284 KB)

    In the annual report published in the October 1926 issue of the Institute's JOURNAL our readers were informed that the mentioned Diesel generator of a capacity of 3175 kv-a. at 25 cycles and 125 rev. per. min. was, at present, the largest machine of its kind driven by a Diesel motor. Messrs. Siemens-Schuckert of Berlin-Siemensstadt now inform us that they have constructed much larger generators to... View full abstract»

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  • Underground alternating-current network: Distribution for central station systems

    Publication Year: 1924, Page(s):545 - 554
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (7437 KB)

    1. Certain experimental arrangements for an underground alternating current distribution system are covered in the paper. 2. Low costs and characteristics satisfactory for general utilization of alternating current are contrasted with difficulty of obtaining reliability. The advantage of adopting system characteristics which will make each service suitable for lighting, appliances, and motors is i... View full abstract»

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  • Design of non-distorting power amplifiers

    Publication Year: 1925, Page(s):490 - 498
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1986 KB)

    The paper deals with the problem of obtaining the maximum output possible from a given amplifier tube, while keeping the distortion down to a negligible amount. A tube can be rated for this purpose in terms of the watts output obtainable, when a sine wave voltage of as great an amplitude as can be advantageously utilized, is applied to the grid. This maximum sine wave output is very much less than... View full abstract»

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  • Water wheel generators and synchronous condensers for long transmission lines

    Publication Year: 1924, Page(s):259 - 260
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (605 KB)

    E.B. Shand : It is desired to draw attention to the conditions of line charging by an a-c. generator. One method which has been frequently used to determine this effect consists in taking the voltage characteristics of the generator when excited by the armature current directly from the no-load saturation, and the short-circuit saturation curves. By plotting the volt-ampere characteristics for the... View full abstract»

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  • A new electronic rectifier

    Publication Year: 1927, Page(s):215 - 222
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (4483 KB)

    A new rectifier utilizing a partially oxidized disk of copper as a rectifier unit is described. The disks may be arranged into groups suitable for all fields of rectifier applications. The rectification appears to take place at the junction between the copper and the oxide without observable physical or chemical changes, and is similar in character to rectification by the hot-cathode type of recti... View full abstract»

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  • The rotating magnetic field theory of A-C. motors

    Publication Year: 1925, Page(s):170 - 178
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1650 KB)

    The predetermination of the performance of a polyphase a-c. machine is greatly facilitated by the fact that at constant voltage and frequency its magnetic field is of constant intensity and rotating with uniform velocity. It is easy to form a mental picture of lines of ferce moving in space and being cut by conductors, which may be moving or stationary. Furthermore, the rate of cutting, and theref... View full abstract»

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  • Fire protection of water-wheel type generators

    Publication Year: 1926, Page(s):1121 - 1130
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (4960 KB)

    In recent years, much attention has been given to fire protection of turbo generators, resulting in a trend towards closed ventilating systems and the use of inert gas to smother combustion. Water-wheel type generators are not so well adapted to this method of protection. In water-power plants, water is the most readily available means for fire extinguishment, but its indiscriminate use through pe... View full abstract»

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  • Cipher printing telegraph systems: For secret wire and radio telegraphic communications

    Publication Year: 1926, Page(s):109 - 115
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2691 KB)

    This paper describes a printing telegraph cipher system developed during the World War for the use of the Signal Corps, U. S. Army. This system is so designed that the messages are in secret form from the time they leave the sender until they are deciphered automatically at the office of the addressee. If copied while en route, the messages cannot be deciphered by an enemy, even though he has full... View full abstract»

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  • Mechanical force between electric circuits

    Publication Year: 1926, Page(s):231 - 235
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (932 KB)

    A general equation is developed for the mechanical force exerted by a system of n electric circuits, upon any part of that system. The electric circuits are assumed to contain resistances, and the reluctance of the several magnetic circuits is assumed to be a function of both the currents and the relative positions of the circuits. The equation is therefore applicable to circuits involving saturat... View full abstract»

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  • Fire protection of water-wheel type generators

    Publication Year: 1927, Page(s):184 - 186
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (872 KB)

    H. C. Don Carlos: We have found in some cases where machines were designed as semi-enclosed or totally enclosed machines that on account of the lack of fire protection it was necessary to change these to open-type machines, so that we could get to the fire to put it out in case of failure. View full abstract»

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  • Developments in electrical machine design

    Publication Year: 1925, Page(s):902 - 910
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2241 KB)

    The past year has shown a marked advancement in the art of electrical machinery, not only in the successful starting and operation of machines larger than any ever built up to this time, but also in the purchase and partial completion of machines still greater in size. Accompanying the trend towards larger sizes of units, there has been much investigation along the lines of ventilation, insulation... View full abstract»

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  • Appendix

    Publication Year: 1926, Page(s):669 - 670
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (436 KB)

    Derivation of formula (d). View full abstract»

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  • Theory of three-circuit transformers

    Publication Year: 1924, Page(s):345 - 355
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2262 KB)

    The characteristics of three-circuit transformers, the literature of which is very meager, is discussed here in considerable detail. The features of the scheme of treatment are as follows: 1. The scope and general aspects of the problems of three-circuit transformers are reviewed. 2. Some peculiar phenomena of considerable theoretical interest are cited. 3. An electrical network equivalent to the ... View full abstract»

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  • Graphical determination of magnetic fields: Practical applications to salient-pole synchronous machine design

    Publication Year: 1927, Page(s):430 - 437
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2911 KB)

    There are three methods of obtaining the flux distribution in a magnetic field. First: By test. Templates or models can be made of the field to be explored and the flux distribution can be obtained by test as described in a companion paper “Graphical Determination of Magnetic Fields — Comparison of Calculations and Tests” by Messrs. E. E. Johnson and C. H. Green. Second: By ma... View full abstract»

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  • Abridgment of some problems in dielectric loss measurements

    Publication Year: 1929, Page(s):450 - 453
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (929 KB)

    The measurement of dielectric loss in high-voltage cables presents many problems which are not simple, and their solution is obtained only after considerable effort and research. This paper presents some of the problems that the authors have encountered in this type of work, together with the methods used for their solution. The bridge method, which is used for the measurement of dielectric loss, ... View full abstract»

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  • Abridgment of the reactances of synchronous machines

    Publication Year: 1928, Page(s):345 - 348
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1271 KB)

    Until somewhat recently, synchronous machine theory has been satisfied with a relatively few characteristic constants, or reactances, in terms of which the behavior of machines has been calculated. Present theory, however, requires many more coefficients. There are now generally recognized two values each of leakage, synchronous, and transient reactance, which correspond to the two symmetrical axe... View full abstract»

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  • Fundamental considerations of power limits of transmission systems

    Publication Year: 1925, Page(s):1045 - 1057
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (3800 KB)

    At this time the power limit of transmission lines is a live subject and presents such complications as to require very careful analysis. The paper points out the essential features to be considered in a study of the problem, and calls attention to some outstanding results of an experimental investigation of the subject with a view to clarifying some of the points that have been under discussion i... View full abstract»

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  • Abridgment of loading transformers by temperature

    Publication Year: 1930, Page(s):293 - 297
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1143 KB)

    It is pointed out that safe loading of transformers by temperature requires not only an accurate knowledge of the thermal laws but also a knowledge of what is a safe temperature limit to be maintained continuously which condition, with the present method of limiting the load to nameplate rating, seldom, if ever, happens. In view of our present knowledge and experience, the author questions the adv... View full abstract»

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  • Cable charge and discharge

    Publication Year: 1924, Page(s):525 - 530
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1534 KB)

    Conductivity determinations of insulating materials, and therefore the determinations of the leakage resistance of a cable, condenser or similar structure, have always been more or less unsatisfactory, due to a phenomenon often called “soaking in of the charges.” In general, if a constant direct voltage is impressed upon a circuit, in the first moment large transient currents flow, r... View full abstract»

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  • All-electric dredges launched

    Publication Year: 1924, Page(s): 276
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (300 KB)

    Two all-electric, 2000-ton capacity hopper dredges built for the Engineer Corps were recently launched from the yards of the Sun Shipbuilding Company. These dredges are electrically driven throughout, no steam being generated on t h e ship. The main propulsion is obtained from Diesel engines driving directcurrent generators which, in turn, operate the propelling motors. Electricity is used for coo... View full abstract»

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  • Electric shovels

    Publication Year: 1925, Page(s):1020 - 1021
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1184 KB)

    W. M. Hoen: I think it reasonable to compare the present steam shovel with the development of the mine hoist. The shovel has a little harder job, but it seems to me that in the early days, in electrifying steam hoists, we were up against a difficult proposition. The hoist manufacturers were building and selling steam hoists, so the electrical manufacturer had to furnish equipment which did not do ... View full abstract»

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  • Abridgment of high-speed circuit breakers

    Publication Year: 1928, Page(s):702 - 705
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1251 KB)

    High-speed circuit breakers have been successfully applied to d-c. railway systems for a number of years, but designs suitable for application on 12,000-volt single-phase systems have not been available until recently. A description of an air circuit breaker design suitable for 12,000-volt applications and having a speed of operation comparable with the d-c. type has been included. The method of a... View full abstract»

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  • Universal type motors

    Publication Year: 1925, Page(s):1319 - 1323
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1924 KB)

    Heretofore the subject of universal motors has not received very much publicity but the field for these motors has been increasing so rapidly that a great deal more attention is now being given to them. The paper endeavors to bring out points of general interest rather than going into the fundamental design and other details. The term “universal” as applied to this type of motor is d... View full abstract»

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  • Starting performance of synchronous motors

    Publication Year: 1927, Page(s):794 - 801
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1279 KB)

    This paper deals with the theory underlying the starting performance of the salient pole synchronous motor equipped with damper windings. The theory, while involving some approximations, is accurate enough for practical engineering calculations. Formulas are developed for the starting torque, pull-in torque and inrush. A method is also given for calculating the speed torque curve from standstill t... View full abstract»

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  • No-load copper eddy-current losses

    Publication Year: 1926, Page(s):264 - 271
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1631 KB)

    One of the factors which is sometimes responsible for very considerable losses in rotating machines is that of eddy-current losses in the copper conductors resulting from slot leakage flux produced by the main flux. These losses occur at no-load as well as under load and should not be confused with the copper losses resulting from the slot leakage flux produced by the load current. These no-load c... View full abstract»

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  • Papers on graphical determination of magnetic fields

    Publication Year: 1927, Page(s):614 - 620
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (5372 KB)

    C. H. Linder: Any simple experimental method of magnetic field plotting is very useful in connection with a mathematical investigation of flux distribution. The accompanying Figs. 1 to 9 demonstrate the efficacy of the iron-filing method for determining the general form of a magnetic field. View full abstract»

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  • Regenerative braking for direct-current locomotives

    Publication Year: 1926, Page(s):613 - 619
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1605 KB)

    This paper gives a comparative study of several d-c., regenerative braking systems now in successful operation. The general characteristics of regenerative braking, including advantages, limitations and functions are briefly discussed. The principal points covered in the descriptions of the various systems are: method of field excitation during regeneration, compensation for sudden changes in line... View full abstract»

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  • General theory of the auto-transformer

    Publication Year: 1926, Page(s):661 - 665
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1056 KB)

    The method of complex quantities lends itself admirably to the development of general theory of the auto-transformer. As worked out, in this instance, it is found desirable to maintain the actual voltage ratio instead of reducing values to an equivalent 1:1 basis. Examples are given of calculations by this method, and also comparison is made with calculated performance of the two-circuit transform... View full abstract»

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  • Variable armature leakage reactance in salient-pole synchronous machines

    Publication Year: 1926, Page(s):665 - 669
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1073 KB)

    The electrical performance characteristics of a polyphase synchronous machine, that is, its voltage-current relations under load, depend essentially upon the nature and the extent of the magnetomotive forces of the armature currents. Broadly speaking, the effect of these magnetomotive forces is two-fold; i. e., (a) they oppose and distort the field magnetomotive force and (b) they create leakage f... View full abstract»

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  • The single-phase induction motor

    Publication Year: 1925, Page(s):499 - 508
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1677 KB)

    The operation of the single-phase induction motor is presented according to the crossfield theory as distinguished from the theory of oppositely rotating fields. The mathematics used require only a knowledge of algebra and trigonometry and no factors, such as crossfield iron loss and crossfield magnetizing current, are neglected. In addition to the derivation of the vector diagram, its transformat... View full abstract»

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  • Artificial illumination of poultry houses for Winter egg production

    Publication Year: 1925, Page(s): 139
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (256 KB)

    The fact that the use of artificial light has been found in some instances, to stimulate winter egg production by as much as 70 per cent, has brought up the question as to what intensity is conducive to maximum production. The answer to this was obtained only after an extended investigation covering a period of two years. As a result of observations carried on jointly by the Department of Rural En... View full abstract»

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  • Application of mercury arc power rectifiers

    Publication Year: 1927, Page(s):446 - 450
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1119 KB)

    Interest in the mercury arc rectifier has grown considerably in America in the last few months. The apparent advantages of the rectifier in higher capacities and for higher voltages have attracted the attention of operators. It should therefore be of interest to present some information on the characteristics of rectifiers, and some comparisons with rotating converters as to operation, cost, floor... View full abstract»

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  • Parallel resonance and anti-resonance

    Publication Year: 1928, Page(s):662 - 665
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (878 KB)

    There seems to be a certain amount of uncertainty among authors as to just what is a correct definition of resonance in a parallel circuit such as shown of Fig. 1. The most common definition is that resonance is that condition which makes the total reactance, or susceptance, equal to zero. This is the condition for unity power factor. In some definitions the further condition is added that at reso... View full abstract»

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  • Voltage standards for electrical distribution

    Publication Year: 1927, Page(s):344 - 345
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (503 KB)

    This paper discusses the necessity for standardizing voltages and advocates the utilization voltage as the most logical reference base. It suggests that the ratios adopted should be uniform at all voltages. It also proposes that there should be a recognized standard for transformers in which the direction of energy flow is subject to change. View full abstract»

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  • A flux voltmeter for magnetic-tests

    Publication Year: 1926, Page(s):989 - 995
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (3504 KB)

    A voltmeter is described for a-c. circuits the voltage indications of which are directly proportional to the maximum flux density, regardless of the wave shape of the voltage. While the instrument is suitable for many varieties of magnetic tests, its most important application is to the reduction of transformer coreloss measurements to sine-wave basis. Test data indicate excellent accuracy for the... View full abstract»

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  • Thermal expansion of aluminum and various important aluminum alloys

    Publication Year: 1925, Page(s): 349
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (316 KB)

    Scientific Paper of the Bureau of Standards, No. 497, gives data on the linear thermal expansion of 4 samples of aluminum and 51 samples of important aluminum alloys. The preparation, chemical composition, heat treatment, etc., are included. Most of the specimens were examined from room temperature to about 500 deg. cent. Typical expansion curves of the various groups of samples are shown and disc... View full abstract»

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  • The direct method of calculation of capacitance of conductors

    Publication Year: 1924, Page(s):1034 - 1039
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (628 KB)

    The capacitance, or electrostatic capacity, of conductors of various shapes has practically always been calculated by the “inverse method” of first assuming certain charges of electricity and from them calculating equi-potential lines and surfaces, which, in the more fortunate cases, agreed exactly with the shapes of the conductors. In other cases, such as that of a three-conductor s... View full abstract»

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  • Developments in electrical machine design

    Publication Year: 1925, Page(s): 1155
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (325 KB)

    Saratoga Springs, N. Y., June 23, 1925 E. J. Burnham: I am very much interested in the new type of frequency changer sets, viz.: The Scherbius-controlled set briefly referred to in this paper. This type of set has proven very desirable as a connecting link between two different systems, particularly where the two systems operate at different frequencies. The Scherbius type of frequency changer has... View full abstract»

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  • Saturation permeameter

    Publication Year: 1928, Page(s):196 - 200
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1494 KB)

    The saturation permeameter is a device for speedy and accurate measurement of saturation value of magnetic material; that is, for measurement of the limiting value of intrinsic induction (β) characteristic of that material. The permeameter in its present form is of the well-known bar-yoke type, with a magnetizing coil capable of producing a magnetizing force of H = 4500 g. without ex... View full abstract»

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  • Synchronous machines — III: Torque-angle characteristics under transient conditions

    Publication Year: 1927, Page(s): 1339
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (268 KB)

    This is the third part of a series of papers on the subject of synchronous machines. The first two were I. An Extension of Blondel's Two-Reaction Theory, II. Steady State Power-Angle Characteristics. The present paper deals with the power-angle, or torque-angle, characteristics under transient conditions, namely, A. Cyclic variation of impressed torque, B. Sudden angular displacement, C. Synchroni... View full abstract»

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  • Artificial light for plant growth

    Publication Year: 1926, Page(s): 706
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (301 KB)

    Slowed-up moving pictures just taken by Carl Wallen and R. S. Green, New York motion picture camera men, of a number of different plants grown under electric light by the Westinghouse Lamp Company, in co-operation with Peter Henderson & Son, seedsmen in their greenhouses in Jersey City, N. J., prove conclusively that through the use of artificial light plants can be forced or retarded to co... View full abstract»

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  • Discussion at Pacific Coast convention: Mechanical electrical construction of modern power transmission lines insulators for high-voltage lines: Special features in the design of transmission tower lines as imposed by electrical conditions

    Publication Year: 1924, Page(s):256 - 257
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (533 KB)

    E.V. Pannell: Mr. Dreyer, on the fourth page of his paper, makes particular reference to the matter of excessive swinging of insulator strings where the vertical loading disappears. On the subject of dangerous swing of insulators where the horizontal load is unbalanced, the facts seem to show that the tie-down string is somewhat unsatisfactory, but Mr. Dreyer makes no mention of the possibility of... View full abstract»

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  • Methods of voltage control of long highvoltage lines by the use of synchronous condensers

    Publication Year: 1924, Page(s):263 - 264
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (584 KB)

    A.W. Copley: In amplification Mr. Koontz's paper and xcarrying out the thought a little farther, it may be pointed out that there is a very definite power limit on a transmission line on which the values of generator and receiver voltage are fixed. The addition of synchronous condenser capacity beyond a certain limit does no good as far as increasing the capacity of the line is concerned. For inst... View full abstract»

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  • Illumination items: The effect of modern illuminants on the eye

    Publication Year: 1924, Page(s):276 - 277
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (537 KB)

    We are told on the best of authority that factory and other work efficiencies are enhanced by increase of illumination. Are we then speeding up our bodies at the expense of our eyes? While there are but little experimental data upon which to base such an opinion at the present time, much good work bearing upon another phase of the question makes it possible to state without much fear of contradict... View full abstract»

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  • Certain factors affecting telegraph speed

    Publication Year: 1924, Page(s):124 - 130
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1724 KB)

    In considering methods for increasing the speed of telegraph circuits, the engineer is confronted by the problem of transmitting over a circuit the maximum amount of intelligence using a given frequency range, without causing undue interference, either in the circuit being considered or from that circuit to other circuits. In this paper the following two fundamentally important factors in connecti... View full abstract»

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Aims & Scope

The Journal of the American Institute of Electrical Engineers (AIEE) contains articles published between 1924 and 1930. Contents are devoted to the advancement of theory and practice of electrical engineering and the allied arts and sciences.

This Journal ceased publication in 1930. The current retitled publication is IEEE Spectrum.

Full Aims & Scope