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Proceedings of the Institute of Radio Engineers

Issue 5 • Oct. 1924

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Displaying Results 1 - 14 of 14
  • [Front cover]

    Publication Year: 1924, Page(s):c1 - c2
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  • Contents

    Publication Year: 1924, Page(s): 519
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  • General Information

    Publication Year: 1924, Page(s): 519
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  • Officers and Board of Direction, 1924

    Publication Year: 1924, Page(s): 520
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  • A Method of Measuring Radio Field Intensities and Atmospheric Disturbances

    Publication Year: 1924, Page(s):521 - 532
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (928 KB)

    The method of measuring radio signals here described depends on the determination of the equality of the sound intensities in the telephones from the signal and from a known alternating current preferably giving the same tone. The measured local current is taken from a thousand-cycle tuning fork oscillator and the electromotive force impressed on the telephones is controlled by a voltage divider. ... View full abstract»

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  • Discovery of a Place Where No Static Could Be Heard in August

    Publication Year: 1924, Page(s):533 - 537
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    The origin of natural static near mountain peaks is described and compared, in its mode of production and character, with that produced by smoke precipitators. Some mountains are believed to be soucres of static, while others act as absorbing shields to signal and static. On these bases, a certain point near Ketchikan, Alaska, was found where static was not heard in midsummer, while signals were r... View full abstract»

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  • The Super-Heterodyne-Its Origin, Development, and Some Recent Improvements

    Publication Year: 1924, Page(s):539 - 552
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3640 KB)

    This paper describes the development of the super-heterodyne receiver from a wartime invention into a commercial form of broadcast receiver apparatus now available to the general public. The success of the development is due to the low filament consumption vacuum tube and to the reduction in the number of tubes required by self-heterodyning, reflexing, and improvement in transformer design. Instan... View full abstract»

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  • Transmitting Equipment for Radio Telephone Broadcasting

    Publication Year: 1924, Page(s):553 - 577
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5176 KB)

    The general transmission considerations applying to any system for the high quality transmission of speech or music are outlined briefly, and the specific requirements to be met by the various apparatus units in a radio broadcasting equipment are discussed in some detail. The standard Western Electric 500-watt broadcasting equipment, which has found application in some fifty of the larger stations... View full abstract»

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  • An Analysis of Two Triode Circuits

    Publication Year: 1924, Page(s):579 - 603
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    Two typical triode circuits, used for obtaining regeneration by mutual induction, are examined analytically, with the idea of testing the results of the analysis by experiment. As the experiments were to be performed with a one thousand cycle current (because of the greater accuracy of measurement at this frequency) it was permissible to neglect the condensive coupling due to the tube elements, an... View full abstract»

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  • Discussion

    Publication Year: 1924, Page(s):604 - 607
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  • Experimental Determination of the Fundamental Dynamic Characteristics of a Triode

    Publication Year: 1924, Page(s):609 - 622
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1352 KB)

    By picking out the fundamental component only from the distorted current in a triode while functioning, the writer has found first new forms of dynamic characteristics for a triode, which are utilizable for solving various problems not hitherto satisfactorily solved (for example, modulation in radio telephony, the phenomenon of "Ziehen," or "pulling," and so on), and secondly that the grid current... View full abstract»

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  • A High Efficiency Vacuum Tube Oscillating Circuit

    Publication Year: 1924, Page(s):623 - 650
    Cited by:  Papers (2)
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    A modified push-pull circuit is described in which approximately square waves of current are passed thru the two tubes alternately. High efficiency is obtained by superimposing upon the grid circuit a voltage proportional to current variations in the plate circuit. The circuit gives high output combined with high efficiency without shortening the life of the tubes. View full abstract»

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  • Discussion on "On the Calculation of the Inductances and Capacities for a Multi-Range . . . Series of Tuned Circuits . . . "

    Publication Year: 1924, Page(s):651 - 653
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  • Digests of United States Patents relating to radio telegraphy and telephony

    Publication Year: 1924, Page(s):655 - 677
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Aims & Scope

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

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