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Proceedings of the Institute of Radio Engineers

Issue 4 • Aug. 1925

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

    Publication Year: 1925, Page(s):c1 - c2
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  • Contents

    Publication Year: 1925, Page(s): 405
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  • General Information

    Publication Year: 1925, Page(s): 405
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  • Officers and Board of Direction, 1925

    Publication Year: 1925, Page(s): 406
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  • Institute activities

    Publication Year: 1925, Page(s):407 - 408
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  • A New Phenomenon in Sunset Radio Direction Variations

    Publication Year: 1925, Page(s):409 - 412
    Cited by:  Papers (1)
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  • Recent Commercial Development in Short Wave Transmitters and Receivers

    Publication Year: 1925, Page(s):413 - 436
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    This paper describes the transmitter and receiver recently developed for use by the United States Coast Guard. This apparatus is for operation on wave lengths between 100 and 200 meters. In describing the development of the transmitter a short summary of the various circuit considerations is included. The actual transmitter finally developed is also described together with its operating characteri... View full abstract»

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  • Design of Telephone Receivers for Loud Speaking Purposes

    Publication Year: 1925, Page(s):437 - 460
    Cited by:  Papers (4)
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    A discussion of the advantages and disadvantages of various present day electromagnetic receivers is given. A new type, called the balanced diaphragm receiver, is described and the details of design worked out. View full abstract»

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  • Amplification of Weak Currents and Their Application to Photo-Electric Cells

    Publication Year: 1925, Page(s):461 - 470
    Cited by:  Papers (2)
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  • Generation of Polyphase Oscillations by Means of Electron Tubes

    Publication Year: 1925, Page(s):471 - 476
    Cited by:  Papers (2)
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  • The Shielding of Electric and Magnetic Fields

    Publication Year: 1925, Page(s):477 - 505
    Cited by:  Papers (5)
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    An experimental investigation of the shielding of electric and magnetic fields is reported, for both constant and changing fields. The effect of using iron shells, or sheets, for shielding against the fields of permanent magnets, as well as those set up by electric currents, is considered; the best form for the iron sheets is deduced and an expression for a measure of the shielding action is sugge... View full abstract»

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  • "The Straight-Line Frequency" Variable Condenser

    Publication Year: 1925, Page(s):507 - 509
    Cited by:  Papers (1)
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    The equation for the shape of the rotary plates in a rotary variable condenser is developed so that the frequency-angular setting characteristic is a straight line. The equation for the capacity of this condenser at any angular setting is also given. View full abstract»

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  • Calculation of the Mutual Inductance of Co-Axial Cylindrical Coils of Small Radial Depth

    Publication Year: 1925, Page(s):511 - 512-a
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    This note shows how the mutual inductance of coaxial cylindrical coils of small radial depth may readily be obtained by the use of curves of a type recently described by the United States Bureau of Standards. These curves cover the mutual inductance between coaxial circles, and by a very simple process of summation their usefulness can be extended to coils of small radial depth. View full abstract»

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  • Digests of United States Patents relating to radio telegraphy and telephony

    Publication Year: 1925, Page(s):513 - 532
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Aims & Scope

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

Full Aims & Scope