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Proceedings of the Institute of Radio Engineers

Issue 1 • Date Jan. 1929

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Displaying Results 1 - 25 of 27
  • [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): 1
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  • General Information

    Publication Year: 1929, Page(s): 2
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  • Suggestions for Contributors to the Proceedings

    Publication Year: 1929, Page(s): 3
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  • Institute sections

    Publication Year: 1929, Page(s): 4
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  • Raymond A. Heising - Member Board of Direction, 1929

    Publication Year: 1929, Page(s): 6
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  • Institute news and radio notes

    Publication Year: 1929, Page(s):7 - 15
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  • Geographical Location of Members Elected December 5, 1928

    Publication Year: 1929, Page(s):16 - 17
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  • Applications for Membership

    Publication Year: 1929, Page(s):18 - 19
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  • Officers and Board of Direction, 1928

    Publication Year: 1929, Page(s):20 - 21
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  • A Direct Reading Radio-Frequency Meter

    Publication Year: 1929, Page(s):23 - 34
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2384 KB)

    The method used is the well known one of reading a radio frequency by measuring the beat note produced with a calibrated crystal oscillator. A new type of direct reading audio-frequency meter having a scale of 2.0 to 4.5 kc per second makes the device automatic. The meter scale divisions are 0.1 kc apart, and under reasonable conditions, the accuracy of the reading is of this order. View full abstract»

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  • On the Determination of the Optimum Radiation Angle for Horizontal Antennas

    Publication Year: 1929, Page(s):35 - 41
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1616 KB)

    A standard of (directional) radiation at 15 meters was constructed consisting of a vertical half-wave antenna placed one-half wave above the earth, suitably excited, placed in front of a reflector consisting of five reflector wires slightly more than one-half wave long on a parabolic surface of opening of one wavelength. This was found to give directional characteristics showing a broad maximum of... View full abstract»

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  • Magnetostriction Oscillators

    Publication Year: 1929, Page(s):42 - 88
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6256 KB)

    The present paper describes a newly discovered method of using magnetostriction to produce and control electrical and mechanical frequencies of oscillations in a range of frequencies extending from a few hundred cycles per second to more than three hundred thousand cycles per second. The method involves the interaction of the mechanical vibrations of a magnetostrictive rod and the electric oscilla... View full abstract»

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  • The Importance of Radiotelegraphy in Science

    Publication Year: 1929, Page(s):89 - 114
    Cited by:  Papers (2)
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    First Page of the Article
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  • An Auxiliary frequency Control for R.F. Oscillators

    Publication Year: 1929, Page(s):115 - 117
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    A method of varying the frequency of an oscillator in small known amounts is described. The control operates on the normally fixed element in the oscillating circuit. The vernier calibration is readily made and maintained. View full abstract»

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  • A Method of Treating Resistance Stabilized Radio-Frequency Amplifying Circuits

    Publication Year: 1929, Page(s):118 - 126
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB)

    An equation is developed showing the relation between the circuit constants and the critical resistance in a resistance stabilized amplifier having a tuned grid circuit and a pure inductance plate load. In the derivation of this equation it has been found necessary to assume the grid to filament capacity to be zero. Equations are given which may serve as a basis for approximation formulas which wi... View full abstract»

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  • The Piezo-Electric Crystal Oscillator

    Publication Year: 1929, Page(s):127 - 142
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1488 KB)

    The zero-angle quartz crystal, having electrodes in direct contact with its surface, is used to control the output of a typical oscillating crystal circuit. The crystal is first considered as a simple mechanical oscillator, and the required plate circuit adjustment for sustained vibrations of the crystal obtained by Miler's method on the basis of an assumed electrically equivalent crystal circuit.... View full abstract»

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  • Fading Curves and Weather Conditions

    Publication Year: 1929, Page(s):143 - 148
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    Sunset fading curves from Station KDKA were made at Morgantown with a Shaw Recorder during April and May, 1927. The curves taken on fine days show more irregularity during the daylight hours than those taken on cloudy days. It was found that the signal strength from KDKA during the dark hours sometimes fell far below the daylight strength. A falling curve indicates clearing weather for the next da... View full abstract»

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  • Detection Characteristics of Three-Element Vacuum Tubes

    Publication Year: 1929, Page(s):149 - 158
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1192 KB)

    The change of grid potential in a grid-leak grid-condenser detector can be determined by considering a fictitious "rectified voltage" acting in series with the grid resistance. This equivalent voltage is inversely proportional to the tube "voltage constant" v, which has the value v = 2 Rg/ (dRg/dEg), and can be readily measured by an a.c. resistance bridge. The rec... View full abstract»

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  • Discussion

    Publication Year: 1929, Page(s):158 - 160
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  • Filtering Antennas and Filter-Valve Circuits

    Publication Year: 1929, Page(s):161 - 173
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1064 KB)

    Some methods of coupling together many circuits or antennas giving them simultaneous excitation from the same source of energy are described. The purpose of such arrangements is the construction of practical filter circuits (filtering antennas) giving square-topped resonance curves with good efficiency. Some interesting phenomena with coupled antennas are described. View full abstract»

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  • Discussions on The Receiving System for Long-Wave Transatlantic Radio Telegraphy (Austin Bailey, S. W. Dean, and W. T. Wintringham)

    Publication Year: 1929, Page(s):174 - 184
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  • Discussion on Detection with the Four-Electrode Tube (J. R. Nelson)

    Publication Year: 1929, Page(s):185 - 186
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  • Book review

    Publication Year: 1929, Page(s): 187
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Aims & Scope

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

Full Aims & Scope