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Proceedings of the IRE

Issue 6 • June 1950

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Displaying Results 1 - 25 of 32
  • Table of contents

    Publication Year: 1950, Page(s): 593
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  • John D. Reid, Regional Director, 1950-1951

    Publication Year: 1950, Page(s): 594
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  • Our New Environment of Decision

    Publication Year: 1950, Page(s): 595
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  • Distant Electric Vision

    Publication Year: 1950, Page(s):596 - 608
    Cited by:  Papers (4)
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    An outline of the history of television is followed by a detailed description of the design and development of some English television pickup tubes. View full abstract»

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  • Who Is the True Inventor?

    Publication Year: 1950, Page(s):609 - 611
    Cited by:  Papers (4)
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  • A Source of Error in Radio Phase Measuring Systems

    Publication Year: 1950, Page(s):612 - 614
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    A source of error in radio navigation or distance-measuring systems involving the measurement of phase is discussed. Experimental evidence is given showing the effect of certain reradiating structures on the accuracy of such phase measurements. View full abstract»

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  • An Analysis of Some Anomalous Properties of Equiphase Contours

    Publication Year: 1950, Page(s):614 - 618
    Cited by:  Papers (2)
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    If one thinks of the voltage of a radio signal as a function of the location of some target point, then the phase of this voltage is also such a function. One might imagine that since the voltage exhibits no peculiar properties, neither does the phase; but this is not true. There are many cases for which the phase becomes a multivalued function. This fact is very important in the theory of the pha... View full abstract»

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  • A Microwave Propagation Test

    Publication Year: 1950, Page(s):619 - 626
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3976 KB)

    A description is given of a microwave propagation test which was conducted over a period of a year with simultaneous transmission on wavelengths of 16.2, 7.2, 4.7, and 3.1 cm over an unobstructed 42-mile overland path. Comparative charts depict variations in daily fading range, illustrate diurnal and seasonal characteristics of fading, and reveal the marked disparagement between winter and summer ... View full abstract»

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  • Magnetic Triggers

    Publication Year: 1950, Page(s):626 - 629
    Cited by:  Papers (2)
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    Magnetic cores of fairly rectangular hysteresis loop material are used as a trigger device. Magnetic fluxes are used instead of electrical currents to indicate the two stable positions of the tigger. This paper shows how the magnetic flux level may be detected without a mechanical motion. The construction and functioning of several types of such magnetic triggers are discussed. View full abstract»

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  • Feedback in Very-High-Frequency and Ultra-High-Frequency Oscillators

    Publication Year: 1950, Page(s):630 - 632
    Cited by:  Papers (1)
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    This paper covers a study of feedback considerations in low-power negative-gnrd triode oscillators for the frequency range of 100 to 1,000 Mc. Discussion is mainly confined to oscillators using a single tuned circuit between grid and plate in the modified Colpitts circuit wherein the feedback is provided by the internal tube capacitances. The optimum feedback conditions are derived, and the analys... View full abstract»

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  • Ultra-High-Frequency Triode Oscillator Using a Series-Tuned Circuit

    Publication Year: 1950, Page(s):633 - 635
    Cited by:  Papers (1)
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    As the conventional triode oscillator is applied to higher and higher frequencies, one or both of two phenomena finally prevent oscillation. These phenomena are transit-time effects and self-resonance of the tube elements. The analysis described in this paper refers these effects to the resistance and reactance requirements of the tube upon the external circuit. In those instances where a given tr... View full abstract»

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  • The Theory of a Three-Terminal Capacitor

    Publication Year: 1950, Page(s):635 - 636
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    Theoretical equations are derived for the insertion loss of a three-terminal capacitor which check the experimental curves within their precision of measure. The condenser is assumed to behave like some equivalent transmission line and the line constants of this line determined as a function of frequency. Skin effect and proximity effect are taken into consideration, and engineering curves are plo... View full abstract»

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  • Maximum Tank Voltage in Class-C Amplifiers

    Publication Year: 1950, Page(s):637 - 644
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    Theoretical considerations are presented to justify the frequent appearance in class-C amplifiers of radio-frequency plate voltages which are greater than the dc plate voltage. A method is developed for predicting the magnitude of this rf voltage under any given set of conditions. This method is then experimentally verified for a given case. View full abstract»

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  • A New Wide-Range, High-Frequency Oscillator

    Publication Year: 1950, Page(s):645 - 650
    Cited by:  Papers (6)
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    A new tube is described which is fundamentally a Barkhausen oscillator with an electron gun and a cavity resonator. The tube is inherently inefficient, but is capable of tuning over extremely wide frequency ranges. For one single tube, for instance, the wavelength ranges from 4.5 to 12 cm and the output power from 0.1 to 1.0 watt. View full abstract»

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  • The Influence of the Ground on the Calibration and Use of VHF Field-Intensity Meters

    Publication Year: 1950, Page(s): 650
    Cited by:  Papers (11)
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    First Page of the Article
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  • A Philips-Type Ionization Gauge for Measuring of Vacuum from 10-7to 10-1mm. of Mercury

    Publication Year: 1950, Page(s):651 - 654
    Cited by:  Papers (1)
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    A Philips (Penning)-type ionization gauge is described which, unlike most former gauges of this type described in the literature, is capable of measuring vacuum down to 10-7mm of Hg. Construction and operation details of the gauge are given in addition to its advantages and disadvantages as compared to hot-cathode-type ionization gauges. View full abstract»

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  • Cathode-Coupled Multivibrator Operation

    Publication Year: 1950, Page(s):655 - 656
    Cited by:  Papers (1)
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    An approximate analysis of the cathode-coupled multivibrator is given. The result is an expression for the period of the output pulse in terms of the circuit elements, rather than voltages which have to be determined graphically. A series expansion of the final expression is used to show that the output period is nearly a linear function of one of the voltages in the circuit, and can be made more ... View full abstract»

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  • An Impulse Generator-Electronic Switch for Visual Testing of Wide-Band Networks

    Publication Year: 1950, Page(s):657 - 661
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    The impulse generator-electronic switch is an instrument developed primarily to facilitate the design and production of radar networks such as delay, pulse-forming, and sweep networks. The instrument may be used to test any network that can be arranged to store a dc charge. Discharge characteristics of microsecond order, produced by a reference network and the network under test, are simultaneousl... View full abstract»

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  • Intermediate-Frequency Gain Stabilization with Inverse Feedback

    Publication Year: 1950, Page(s):662 - 667
    Cited by:  Papers (2)
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    Increased gain stability and gain-bandwidth product result from the use of inverse feedback in an intermediate-frequency amplifier. Improvement in gain stability is related to the number of cascaded stages, the stage gain, and the magnitude of the feedback. A circuit is described which uses feedback over a pair of cascaded stages. Generalized selectivity curves for this feedback couple axe shown, ... View full abstract»

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  • The Application of Direct-Current Resonant-Line-Type Pulsers to the Measurement of Vacuum-Tube Static Characteristics

    Publication Year: 1950, Page(s):668 - 670
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    In order to utilize a power tube efficiently, the static characteristics of this tube must be known. From these characteristics, optimum load lines may be determined and circuit components of the equipment may be defined. The problem of obtaining these characteristics is usually not a simple one, due to the power-input limitations put upon a tube. For this reason, characteristic curves were previo... View full abstract»

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  • Wide-Range Tunable Waveguide Resonators

    Publication Year: 1950, Page(s):671 - 679
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    A study is made of the design of broad-band (2: 1 tuning range) resonators for use with reflex klystrons of the external cavity type. The resonators considered are variations of a general type consisting of a section of waveguide with movable shorting plungers at each end and the tube located at the center. They are divided into two groups: quarter-wave or fundamental mode resonators whose high-fr... View full abstract»

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  • The Effect of a Bend and Other Discontinuities on a Two-Wire Transmission Line

    Publication Year: 1950, Page(s):679 - 682
    Cited by:  Papers (1)
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    The theoretical problem of a bend on a two-wire transmission line is analyzed by the vector-potential method. The equivalent circuit elements are obtained by comparing the variableline parameters near the bend with the conventional line parameters found on an infinite line. The effect of the nonrotational symmetry of the axial vector potential on the conductor surfaces is treated by an approximate... View full abstract»

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  • Discussion on "An Approach to the Approximate Solution of the Ionosphere Absorption Problem" (James E. Hacke, Jr.)

    Publication Year: 1950, Page(s):683 - 684
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  • Correspondence

    Publication Year: 1950, Page(s):684 - 685
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  • Contributors to Proceedings of the I.R.E.

    Publication Year: 1950, Page(s):686 - 688
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Aims & Scope

This Periodical ceased production in 1962. The current retitled publication is Proceedings of the IEEE.

Full Aims & Scope