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Radio Engineers, Proceedings of the Institute of

Issue 4 • Date Aug. 1923

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Displaying Results 1 - 13 of 13
  • [Front cover]

    Publication Year: 1923 , Page(s): c1
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  • Contents

    Publication Year: 1923 , Page(s): 331
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  • General Information

    Publication Year: 1923 , Page(s): 331
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  • Officers and Board of Direction, 1923

    Publication Year: 1923 , Page(s): 332
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  • Receiving Measurements and Atmospheric Disturbances at the United States Naval Radio Research Laboratory, Bureau of Standards, Washington, March and April, 1923

    Publication Year: 1923 , Page(s): 333 - 338
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    Field intensities of the signals from the Lafayette and Nauen stations, together with the simultaneous strengths of the atmospheric disturbances at Washington are given for March and April, 1923. View full abstract»

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  • Description of the General Electric Company's Broadcasting Station at Schenec Tady, New York

    Publication Year: 1923 , Page(s): 339 - 374
    Cited by:  Papers (3)
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    After a consideration of the points of similarity and of differ ence of commercial and broadcasting radio telephone transmitters, there are described the pick-up devices, amplifying equipment, transmitters, and control systems of a modem broadcasting station. The factors entering into the operation and performance of such a station are considered. View full abstract»

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  • Interference

    Publication Year: 1923 , Page(s): 375 - 388
    Cited by:  Papers (1)
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    A brief history of the development of interference with radio receiving is outlined. The present change in the interference problems caused by the number of broadcast listeners is discussed. The suggestion is made that each kind of radio service be given a value in dollars and cents as a basis for eliminating interference. Estimates are made, and a charge submitted showing the per minute value of freedom from interference, to broadcast listeners, according to the population and time of day. Various sorts of interference to broadcast listeners are listed and described. Suggestions are offered for eliminating or reducing interference. View full abstract»

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  • Discussion

    Publication Year: 1923 , Page(s): 389
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  • On Super-Regeneration

    Publication Year: 1923 , Page(s): 391 - 394
    Cited by:  Papers (2)
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    A simple mathematical analysis of super-regeneration yields conclusions, in accordance with observration, that the super-regenerative system amplifies without distortion and that the amplification increases with increase of signal frequency and with decrease of variation frequency. Two single tube super-regenerative circuits, interesting because of their simplicity, are described. View full abstract»

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  • Loop Uni-Directional Receiving Circuits for the Determination of the Direction of Atmospheric Disturbances

    Publication Year: 1923 , Page(s): 395 - 397
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    A balanced loop and vertical antenna method of determining the direction of incoming atmospheric disturbances is described. View full abstract»

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  • Standards of Capacity Particularly for Radio Frequency Currents

    Publication Year: 1923 , Page(s): 399 - 404
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    Standards of capacity for use with radio frequency currents, made according to a suggestion of the former Lord Rayleigh, are described. A simple method of increasing the sensitivity of the thermo-couple galvanometer system for indicating resonance is mentioned. Metallic discs and small tpheres were found to be erratic standards, because of unavoidable effects of she connecting wires. The measured capacities of small paralle plate condensers were in agreement with the capacities calculated from the dimensions. View full abstract»

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  • Vacuum Tubes as Power Oscillators

    Publication Year: 1923 , Page(s): 405 - 435
    Cited by:  Papers (3)
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    Chapter IV. The general method of designing any but the simplest of circuits is to draw a vector diagram and then calculate circuit constants that will give vectors of the proper lengths and directions. This method has been exemplified by designing a circuit in which the grid is tuned and contains the load. The plate circuit is magnetically coupled and is partially tuned to act as an harmonic by-pass. A numerical example of the method is given. Chapter V.-The criteria for double periodicity of two coupled circuits are first developed and it is shown that for a singly periodic circuit the secondary volt-amperes cannot exceed the primary. The maximum power which can be transferred to the secondary is limited by this requirement. A greater amount of energy can be transferred by a closer coupling, which results in making the circuit doubly periodic, and tuning the circuits individually to other than the desired frequency. High power will then be delivered on only one of the stable frequencies. The method of designing a circuit to deliver energy under such conditions is developed. Such a circuit always tends to oscillate at the frequency giving least load. It is shown that grid keying cannot be used without other modifications of the circuit. View full abstract»

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

    Publication Year: 1923 , Page(s): 437 - 456
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Aims & Scope

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

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