By Topic

Radio Engineers, Proceedings of the Institute of

Issue 1 • Date Feb. 1922

Filter Results

Displaying Results 1 - 14 of 14
  • Information about the Society

    Page(s): nil1
    Save to Project icon | Request Permissions | PDF file iconPDF (23 KB)  
    Freely Available from IEEE
  • General-Information

    Page(s): nil2
    Save to Project icon | Request Permissions | PDF file iconPDF (61 KB)  
    Freely Available from IEEE
  • Contents of Volume 10

    Page(s): nil3 - nil4
    Save to Project icon | Request Permissions | PDF file iconPDF (169 KB)  
    Freely Available from IEEE
  • [Front cover]

    Page(s): c1
    Save to Project icon | Request Permissions | PDF file iconPDF (480 KB)  
    Freely Available from IEEE
  • Contents

    Page(s): 1
    Save to Project icon | Request Permissions | PDF file iconPDF (96 KB)  
    Freely Available from IEEE
  • General Information

    Page(s): 1
    Save to Project icon | Request Permissions | PDF file iconPDF (96 KB)  
    Freely Available from IEEE
  • Officers and Board of Direction, 1922

    Page(s): 2
    Save to Project icon | Request Permissions | PDF file iconPDF (69 KB)  
    Freely Available from IEEE
  • The Development of Tube Transmitters by the Telefunken Company

    Page(s): 3 - 23
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (8104 KB)  

    The development of gas-containing and high vacuum transmitting tubes in Germany is described. The main forms of tube transmitters are illustrated and their circuits given. The application of such transmitters to multiplex telephony or telegraphy along high voltage lines is described. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Improvements in Piloting Cable Receiving Apparatus

    Page(s): 24 - 32
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1984 KB)  

    The further development of an aural receiver for the piloting cable system of guiding ships into harbors is described. In particular, the choice of a detecting coil of the most desirable number of turns, the proper choice of transformer input impedance and step-up ratio, and the use of audio frequency tuning of the coil circuit are discussed. The design of the latest coil, receiver, and amplifier is given. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Full text access may be available. Click article title to sign in or learn about subscription options.
  • A New Rectifier

    Page(s): 41 - 51
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1488 KB)  

    The authors describe a new type of cold electrode power rectifier tube utilizing gaseous conduction, and based on the following principles: No considerable gaseous conduction occurs between coaxial cylindrical electrodes separated by less than the mean free path of the electrons. An axial magnetic field (perpendicular to the electric force) will cause the electrons to pursue a longer path, and thus permit considerable conduction provided the magnetic field intensity exceeds a critical value. The critical value of the magnetic field required for producing conduction is greater for conduction from the inner to the outer electrode than in the reverse direction (that is, there are two critical values). By choosing a magnetic field intensity intermediate between the two critical values, unilateral conductivity results. Tubes constructed on this basis are described, and their performance given. The approximate mathematical theory of their action is derived. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Polyphase Rectification

    Page(s): 52 - 56
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2056 KB)  

    The use of three-phase and six-phase rectified alternating current for feeding the plate circuits of vacuum tube oscillators in radiophone work is described with circuit diagrams and oscillograms of the resulting currents. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Notes on the Theory of Modulation

    Page(s): 57 - 64
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (856 KB)  

    The transmission system of "frequency modulation" (transmission by variation of the frequency of the radiated wave) is mathematically analyzed, and the width of the band of frequencies occupied by this method of transmission at a given speed is compared with the width of the corresponding band for transmission by amplitude variation. It is proved that the frequency modulation system using a spacing or compensating wave is inferior to the amplitude variation system both as to the width of the frequency band occupied and as to distortion of signal wave form. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Digest of United States Patents relating to radio telegraphy and telephony

    Page(s): 65 - 80
    Save to Project icon | Request Permissions | PDF file iconPDF (4193 KB)  
    Freely Available from IEEE

Aims & Scope

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

Full Aims & Scope