Proceedings of the Institute of Radio Engineers

Issue 10 • Oct. 1932

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Displaying Results 1 - 13 of 13
  • Reginald A. Fessenden

    Publication Year: 1932, Page(s): 1548
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  • Institute notes

    Publication Year: 1932, Page(s):1549 - 1553
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  • Errata

    Publication Year: 1932, Page(s):1553 - 1554
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  • Direct-Ray Broadcast Transmission

    Publication Year: 1932, Page(s):1555 - 1579
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7416 KB)

    The propagation of long and short waves over long distances has been extensively studied, and the underlying principles are, to a large extent, understood. The question of the propagation of medium waves by direct ray, which forms the subject of the following paper, has not previously received so much attention. The paper is written with a view of enabling predictions to be made as to the field st... View full abstract»

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  • Visual Test Devices

    Publication Year: 1932, Page(s):1580 - 1598
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2904 KB)

    A device for showing on a screen the frequency-response curve of a tuned circuit, tuned transformer, amplifier or complete radio set is described in this paper. The action of the device is practically instantaneous, and the effect of circuit adjustments may be seen immediately. The principles and operation of the device are explained, and it is shown how the derivative of the response curve may be... View full abstract»

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  • Copper-Oxide Rectifier Used for Radio Detection and Automatic Volume Control

    Publication Year: 1932, Page(s):1599 - 1614
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2568 KB)

    A new type of radio detector has been developed which depends for its action on the rectifying properties of the boundary between copper and cuprous oxide formed on the copper at a high temperature. In order to make the copper-oxide rectifier useful up to broadcast frequencies, it was necessary to use small disks and a high current density. The high current density was obtained in part by connecti... View full abstract»

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  • The Detection of Microwaves

    Publication Year: 1932, Page(s):1615 - 1625
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1104 KB)

    The results of researches made to recognize the best conditions in which triodes can be used for the detection of microwaves (frequencies of about 109per sec) are reported here. It seems that the detecting triodes, which must have their grids at a very high positive potential and the anode at a potential just lower than that of the positive end of the wire, act simply like rectifying di... View full abstract»

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  • A New Electrical Method of Frequency Analysis and Its Application to Frequency Modulation

    Publication Year: 1932, Page(s):1626 - 1639
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3720 KB)

    A method of analyzing an arbitrary combination of sine wave voltages is described and the analysis of several examples carried out. The method is based on the appearance of certain figures, typical of definite frequency ratios, appearing in an oscillogram of the superposition of a constant frequency and a "search" voltage. The resolving power of the method is very high, allowing component voltages... View full abstract»

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  • A Fourier Analysis of Radio-Frequency Power Amplifier Wave Forms

    Publication Year: 1932, Page(s):1640 - 1659
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1840 KB)

    A theoretical treatment of class B and C radio-frequency amplifier wave forms by means of the Fourier series is presented. Assuming constant plate tuned circuit impedance, general expressions for the Fourier coefficients for any value of grid bias from cut-off to the position for class A operation are derived. The variation in plate circuit efficiency as the bias is moved from the position for cla... View full abstract»

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  • Note on Network Theory

    Publication Year: 1932, Page(s):1660 - 1664
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    Passive transducers may be connected in any manner between two pairs of terminals to form a resultant passive transducer between those terminals. In this note are given or indicated general expressions for the important properties of such a resultant transducer in terms of those of the transducers forming it for the case in which the arrangement of the subsidiary transducers can be achieved by som... View full abstract»

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  • Book reviews

    Publication Year: 1932, Page(s): 1665
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  • Radio abstracts and references

    Publication Year: 1932, Page(s):1666 - 1673
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  • Contributors to this issue

    Publication Year: 1932, Page(s):1674 - 1675
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Aims & Scope

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

Full Aims & Scope