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Radio and Electronic Engineer

Issue 4 • Date October 1968

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Displaying Results 1 - 12 of 12
  • The world's mine oyster

    Publication Year: 1968
    IEEE is not the copyright holder of this material | PDF file iconPDF (127 KB)
    Freely Available from IEEE
  • Institution Notices

    Publication Year: 1968
    IEEE is not the copyright holder of this material | PDF file iconPDF (141 KB)
    Freely Available from IEEE
  • Transistors in the regulating unit of electronic voltage stabilizers

    Publication Year: 1968, Page(s):195 - 206
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1146 KB)

    Transistors may be used in both d.c. and a.c. voltage stabilizers and their use is considered in both applications although emphasis is placed on their use in a.c. voltage stabilizers. The operating conditions of transistors in a.c. stabilizers are different from their normal operating conditions in amplifiers and care is necessary to prevent damage to them. The operation of a transistor essential... View full abstract»

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  • Letter to the Editor: Superdirective arrays

    Publication Year: 1968, Page(s):207 - 208
    IEEE is not the copyright holder of this material | PDF file iconPDF (256 KB)
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  • The design of active filters using the in-line pole approximation

    Publication Year: 1968, Page(s):209 - 217
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (807 KB)

    A synthesis is presented which has enabled a practical switchable filter to be realized which will give an optimum linear phase response together with satisfactory amplitude and transient response using a computed in-line pole distribution. Theoretical and practical characteristics are compared for a fourth- and sixth-order filter and the appropriate circuit diagrams are given. The application of ... View full abstract»

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  • Television and Education

    Publication Year: 1968
    IEEE is not the copyright holder of this material | PDF file iconPDF (170 KB)
    Freely Available from IEEE
  • A positioning system using three-valued codes

    Publication Year: 1968, Page(s):219 - 224
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (588 KB)

    A significant simplification of the computation circuits for positioning systems is achieved by the use of three-valued codes. The use of the odd radix makes it possible to provide a control system symmetrical to positive and negative quantities which relieves the necessity to complement digital information. The paper discusses the construction of suitable cyclic codes and gives the logical design... View full abstract»

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  • Colour television studio equipment and problems

    Publication Year: 1968, Page(s):225 - 239
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1675 KB)

    The paper outlines the nature of a studio complex and the problems which arise from the introduction of colour television beginning with those associated with the colour separation signals. Special reference is made to the problems arising from the use of four-tube colour cameras particularly from the point of view of monitoring their outputs as well as the methods of coding to ensure accurate col... View full abstract»

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  • Of Current Interest . . .

    Publication Year: 1968
    IEEE is not the copyright holder of this material | PDF file iconPDF (165 KB)
    Freely Available from IEEE
  • An approximate calculation of the phase constant for a rectangular waveguide containing a dielectric

    Publication Year: 1968, Page(s):241 - 243
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (303 KB)

    The phase constant of a rectangular waveguide containing a longitudinal dielectric slab of arbitrary cross-section has been calculated using a system of orthonormal waveguide functions in which the curl and potential fields are separated. View full abstract»

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  • Processing ceramics to give suitable substrate characteristics

    Publication Year: 1968, Page(s):244 - 246
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (395 KB)

    The selection of the substrate material is dependent on the application for which the deposited circuit is intended. The normal production specifications for substrates are discussed and a brief description given of the production methods available. The reasons for the impurity ratio in the ceramic must be considered relevant to the type of deposition that will be applied and the degree of adheren... View full abstract»

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  • High-speed computer logic with gunn-effect devices

    Publication Year: 1968, Page(s):247 - 255
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (806 KB)

    The application of the Gunn effect for fast logic circuits is discussed. In particular, several new devices, such as comparators, which rely on the possibility of domain-nucleating control are described. The ultimate time-constants of these new devices can be at least one order of magnitude better than the most advanced monolithic structures with conventional transistor and diode circuitry. Finall... View full abstract»

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