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Proceedings of the Institute of Radio Engineers

Issue 5 • Date May 1929

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Displaying Results 1 - 25 of 26
  • [Front cover]

    Publication Year: 1929, Page(s): c1
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  • Institute of Radio Engineers - Forthcoming Meetings

    Publication Year: 1929, Page(s): c2
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  • Contents

    Publication Year: 1929, Page(s): 765
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  • General Information

    Publication Year: 1929, Page(s): 766
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  • Suggestions for Contributors to the Proceedings

    Publication Year: 1929, Page(s): 767
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  • Institute sections

    Publication Year: 1929, Page(s): 768
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  • Melville Eastham Treasurer - Treasurer of the Institute, 1927-1929

    Publication Year: 1929, Page(s): 770
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  • Institute news and radio notes

    Publication Year: 1929, Page(s):771 - 780
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  • Geographical Location of Members Elected April 3, 1929

    Publication Year: 1929, Page(s):781 - 782
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  • Applications for Membership

    Publication Year: 1929, Page(s):783 - 785
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  • Officers and Board of Direction, 1929

    Publication Year: 1929, Page(s):786 - 787
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  • Double and Multiple Signals with Short Waves

    Publication Year: 1929, Page(s):789 - 823
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (11440 KB)

    Multiple signals have been observed in a frequency range of 20,000 to 16,667 kc, or 15 to 18 m, only when the great circle between transmitter and receiver passes through the twilight zone, in which conditions are especially favorable for these frequencies. The conditions for various positions of great circles are discussed in detail, and the expected times of occurrence of double signals are give... View full abstract»

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  • Short Range Echoes with Short Waves

    Publication Year: 1929, Page(s):824 - 829
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2850 KB)

    The authors have made an examination of short range echoes by means of special signals transmitted from the high-frequency stations at Nauen (21,430 to 11,538 kc, or 14 to 26 m) and recorded photographically at Geltow. The echoes are sometimes blurred and sometimes repeated at fairly regular intervals, indicating multiple reflection between the ground and a reflecting layer. In one case the height... View full abstract»

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  • Detection Characteristics of Screen-Grid and Space-Charge-Grid Tubes

    Publication Year: 1929, Page(s):830 - 833
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    This paper reports the results of measurements made to determine the grid-leak grid-condenser detection properties of screen-grid and space-charge-grid tubes. It is found that the rectifying properties of the grid circuit for the four-element tube used in these ways is about the same in character and magnitude as in three-element tubes with the same type of filament. The rectifying action in the g... View full abstract»

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  • A Direct Reading Frequency Bridge for the Audio Range, Based on Hay's Bridge Circuit

    Publication Year: 1929, Page(s):834 - 840
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1024 KB)

    This paper describes the construction and operation of a direct reading bridge for measuring audio frequencies in the range from 50 to 5000 cycles per second and upwards. The circuit used is a modification of Hay's bridge for the measurement of inductance, and is obtained from it by the insertion of a variable resistance in the inductive arm. This resistance and another in the condenser arm are va... View full abstract»

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  • Voltage Surges in Audio-Frequency Apparatus

    Publication Year: 1929, Page(s):841 - 848
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2008 KB)

    Transient voltages of over 2000 are shown to occur across the secondary when the normal plate current of a high inductance audio transformer is opened. The oscillograph and inverted vacuum tube are used to bring out further that these transients are oscillations of definite frequency and magnitude, depending on the primary current, inductance, and secondary distributed capacity. The manner of brea... View full abstract»

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  • Cold Cathode Rectification

    Publication Year: 1929, Page(s):849 - 863
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4272 KB)

    Asymmetric conductivity in a gas between two electrodes can be accomplished without the use of a hot cathode, if the relative areas of the electrodes are widely different. This paper presents the results of an investigation of the discharge phenomena and asymmetric conductivity in a cold cathode rectifier tube containing two anodes and one cathode, when utilizing: (1) one anode and one cathode; (2... View full abstract»

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  • Vacuum-Tube Voltmeter Design

    Publication Year: 1929, Page(s):864 - 872
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1496 KB)

    It is shown that for every input range and meter a set of optimum conditions exist, which insure maximum readability, economy, and minimum operating current. Equations are developed (and illustrated with several examples) for the rapid design of a meter for a predetermined range. Optimum conditions are imposed. The dependence of the range secured upon plate circuit impedance is shown and its varia... View full abstract»

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  • Field Intensity Characteristics of Double Modulation Type of Directive Radio Beacon

    Publication Year: 1929, Page(s):873 - 878
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    Field strength characteristic relationships, applicable to the double modulation type of directive radio beacon when modulation is applied, are developed. Graphs showing the characteristic patterns which govern the indications of the receiving apparatus as it moves around in space about the transmitter are given for three typical sets of transmitter adjustments. View full abstract»

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  • Logarithmic Scale for Beat-Frequency Oscillator

    Publication Year: 1929, Page(s):879 - 881
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB)

    The equation governing the shape of a condenser's plates, which if placed in a beat-frequency oscillator would give a logarithmic frequency scale, is developed. View full abstract»

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  • Radio Interference

    Publication Year: 1929, Page(s):882 - 891
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1648 KB)

    The radio interference situation is rapidly becoming so serious as to make improvements in both methods of detection and methods of elimination absolutely imperative. The most effective method in interference detection is that combining the good features of the intensity method, with the circuit selection features of the directional method, coupled with extensive experience, both in the field and ... View full abstract»

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  • Discussion on Reception Experiments in Mt. Royal Tunnel (A. S. Eve, W. A. Steel, G. W. Olive, A. R. McEwan, and J. H. Thompson)

    Publication Year: 1929, Page(s):892 - 894
    Cited by:  Papers (1)
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  • Discussion on Facsimile Picture Transmission (V. Zworykin)

    Publication Year: 1929, Page(s):895 - 898
    Cited by:  Papers (1)
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  • Book review

    Publication Year: 1929, Page(s):899 - 900
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  • Monthly list of references to current radio literature

    Publication Year: 1929, Page(s):901 - 903
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (341 KB)

    This is a monthly list of references prepared by the Bureau of Standards and is intended to cover the more important papers of interest to professional radio engineers which have recently appeared in periodicals, books, etc. The number at the left of each reference classifies the reference by subject in accordance with the scheme presented in "A Decimal Classification of Radio Subjects - An Extens... View full abstract»

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Aims & Scope

This Periodical ceased production in 1938. The current retitled publication is Proceedings of the IEEE.

Full Aims & Scope