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Electrical Engineering

Issue 8 • Aug. 1939

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Displaying Results 1 - 25 of 48
  • [Front cover]

    Publication Year: 1939, Page(s): c1
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  • [Advertisement - Front inside cover]

    Publication Year: 1939, Page(s): c2
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  • [Advertisements]

    Publication Year: 1939, Page(s):1 - 4
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  • Contents

    Publication Year: 1939, Page(s): 1
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  • Highlights

    Publication Year: 1939, Page(s): 326
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  • A message from the president

    Publication Year: 1939, Page(s): 327
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  • How many decibels?

    Publication Year: 1939, Page(s):328 - 329
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (366 KB)

    Although the decibel and its relation to the theory of geometrical progression are familiar to communications engineers and engineering educators, many other engineers have not had occasion to analyze the implications of this comparatively new unit. To them, this article presents a definition in understandable terms. View full abstract»

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  • Responsibilities in the AIEE

    Publication Year: 1939, Page(s):330 - 332
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    For the Institute and its membership, Retiring-President Parker recommends “individual responsibility, individual work, and an organization developed along representative lines” View full abstract»

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  • Nickel in television

    Publication Year: 1939, Page(s): 332
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    THE use of nickel and certain nickel alloys for the production of cathode-ray tubes is proving an important factor in the practical development of television. The cathode-ray tube, which translates electrical impulses into visual patterns, is an essential element of modern television sets. Within the tube, electrons emanating from heated metal are formed into a beam and projected on a fluorescent ... View full abstract»

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  • Signaling on electric railroads

    Publication Year: 1939, Page(s):333 - 338
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    A survey of recent developments in signaling practice, with some consideration of their foundations and growth View full abstract»

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  • A method for determining the efficiencies of small motors

    Publication Year: 1939, Page(s):339 - 340
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (329 KB)

    FRACTIONAL-HORSEPOWER motors have been developed for many uses which cause their characteristics to differ widely from larger motors. Usually they are designed for constant-load operation, but some are made to have large starting torques and others to run at constant speed. Naturally these motors have a much smaller efficiency than the larger ones, and the methods used for determining the efficien... View full abstract»

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  • The electric strength of fibrous glass

    Publication Year: 1939, Page(s):341 - 345
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    The ideal, and probably future, use of fibrous glass for electrical insulation is without an organic filler. Therefore, it is important first to know its electric strength in unimpregnated condition. Test results show its high qualities at elevated gas pressures and temperatures. View full abstract»

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  • A bridge for separating the components of traveling waves

    Publication Year: 1939, Page(s):345 - 346
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    By which the incident, reflected, and standing waves of voltage on a trans-mission line may be separated for simultaneous and independent measurement View full abstract»

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  • Illumination notes

    Publication Year: 1939, Page(s): 346
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  • Marion A. Savage — 1938 Lamme medalist

    Publication Year: 1939, Page(s): 347
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  • Accomplishments of medalist Savage

    Publication Year: 1939, Page(s):347 - 348
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  • A good designer must be a good prophet

    Publication Year: 1939, Page(s):348 - 349
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    All engineers who have to design electrical machinery honor the name of Benjamin G. Lamme, who did so much to advance the designing art. It was my good fortune to know Mr. Lamme personally. His kindly nature, remarkable memory, and keen mind were an inspiration to a young engineer. In accepting this medal given in memory of his achievements, I do so not as a personal tribute, but rather as a tribu... View full abstract»

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  • News of Institute and related activities: 55Th annual Summer convention held in San Francisco, Calif.

    Publication Year: 1939, Page(s):350 - 352
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  • Future AIEE meetings

    Publication Year: 1939, Page(s):353 - 354
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  • Board of directors approves model registration law

    Publication Year: 1939, Page(s):354 - 355
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  • Three districts announce prize awards for papers

    Publication Year: 1939, Page(s): 355
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  • AIEE directors meet during Summer convention

    Publication Year: 1939, Page(s): 355
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    THE regular meeting of the board of directors of the American Institute of Electrical Engineers was held at the Fairmont Hotel, San Francisco, Calif., June 29, 1939, during the annual summer convention of the Institute. View full abstract»

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  • Executive committee of Southern district meets

    Publication Year: 1939, Page(s): 355
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  • Tentative program for district meeting at Scranton

    Publication Year: 1939, Page(s): 356
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  • AIEE baltimore section becomes Maryland section

    Publication Year: 1939, Page(s): 356
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Aims & Scope

This Periodical ceased publication in 1963. The current retitled publication is IEEE Spectrum.

Full Aims & Scope