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Proceedings of the Institute of Radio Engineers

Issue 6 • Date June 1938

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Displaying Results 1 - 21 of 21
  • [Front cover]

    Publication Year: 1938, Page(s): c1
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  • Institute of Radio Engineers Thirteenth Annual Convention

    Publication Year: 1938, Page(s): c2
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  • Contents

    Publication Year: 1938, Page(s): i
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  • General Information

    Publication Year: 1938, Page(s): ii
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  • Institute sections

    Publication Year: 1938, Page(s): iii
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  • Geographical Location of Members Elected May 4, 1938

    Publication Year: 1938, Page(s):iv - v
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  • Applications for Membership

    Publication Year: 1938, Page(s): vi
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  • Officers and Board of Directors

    Publication Year: 1938, Page(s): vii
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  • S.S. Sandy Hook

    Publication Year: 1938, Page(s): 648
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  • Institute news and radio notes

    Publication Year: 1938, Page(s):649 - 680
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  • Status of Instrument Landing Systems

    Publication Year: 1938, Page(s):681 - 699
    Cited by:  Papers (3)
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    During the past ten years a large number of instrument landing systems have undergone development and tests and a considerable fund of information has been accumulated concerning the shortcomings and advantages of each. The major airlines of the United States, the Federal Communications Commission, the Bureau of Air Commerce, and the Subcommittee on Instrument Landing Devices of the Radio Technica... View full abstract»

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  • An Audio-Frequency-Response Curve Tracer

    Publication Year: 1938, Page(s):700 - 712
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2560 KB)

    A device is described for automatically showing frequency-response characteristics of audio-frequency apparatus on the screen of a long-persistence cathode-ray tube, without mechanical equipment. This device can be used to trace a curve of output voltage on either linear or logarithmic scale versus frequencies from 20 to 15,000 cycles. The frequency scale can be either logarithmic or take special ... View full abstract»

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  • Sweep Circuit

    Publication Year: 1938, Page(s):713 - 719
    Cited by:  Papers (2)
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    This paper describes a new type of sweep circuit for deflecting the electron beam of cathode-ray tubes. The circuit is adaptable for either electrostatic or electromagnetic deflection. Its upper limit of oscillation is approximately 100,000 cycles. The possibility of using the circuit as a multivibrator for generating synchronizing impulses in television is also briefly discussed. View full abstract»

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  • Horn-Type Loud Speakers-A Quantitative Discussion of Some Fundamental Requirements in Their Design

    Publication Year: 1938, Page(s):720 - 733
    Cited by:  Papers (1)
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    Horn loud speakers have found widespread commercial application due to their practical possibility of maintaining high efficiency over a relatively wide frequency range. The inherent limitations of such speakers are not generally recognized, however, as neither are the specific relations that must be satisfied in the choice of constants in the electrodynamic system. This paper discusses the limita... View full abstract»

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  • A Bearing-Type High-Frequency Electro-Dynamic Ammeter

    Publication Year: 1938, Page(s):734 - 744
    Cited by:  Papers (3)
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    A jewel-bearing oscillating-ring electrodynamic ammeter is described and the method for calibrating it is explained. Data and calculations are presented to show that it is a standard of current at high frequencies. The frequency characteristics of three miniature thermocouple ammeters are measured with it. View full abstract»

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  • Design Formulas for Diode Detectors

    Publication Year: 1938, Page(s):745 - 780
    Cited by:  Papers (3)
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    Different types of linear rectifiers are defined, and the required properties of linear rectification are outlined. The envelope-type of rectifier is preferred as having greatest efficiency. The ideal diode for this type is defined and its behavior in various circuits is outlined. Formulas are given which enable fairly accurate prediction of performance, especially of such factors as the maximum c... View full abstract»

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  • Characteristics of the Ionosphere at Washington, D.C., April 1938

    Publication Year: 1938, Page(s):781 - 785
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    Data on the ordinary-wave critical frequencies and virtual heights of the ionospheric layers are presented for the period indicated in the title. The monthly average values of the maximum usable frequencies for undisturbed days, for radio transmission by way of the regular layers is also provided. View full abstract»

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  • Correspondence

    Publication Year: 1938, Page(s):786 - 787
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  • Booklets, catalogs and pamphlets received

    Publication Year: 1938, Page(s):788 - 789
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  • Contributors to this issue

    Publication Year: 1938, Page(s): 790
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  • Exhibition Directory

    Publication Year: 1938, Page(s):ix - xiv
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Aims & Scope

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

Full Aims & Scope