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Radio and Electronic Engineer

Issue 4 • October 1966

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    Publication Year: 1966, Page(s):201 - 202
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (230 KB)

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  • Floating transcription arm: a new approach to accurate tracking with very low side-thrust

    Publication Year: 1966, Page(s):203 - 216
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1668 KB)

    The limitations of existing pivoted arms are outlined, followed by brief details of some past and present radial tracking arms. The advantages of very low tip mass cartridges tracking at <0.2 g, and the design requirements of suitable arms, are discussed as an introduction to the principles and design of a radial tracking arm with a side thrust of <3 dynes at 33¿ rev/min (`Trutrack¿), in w... View full abstract»

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  • Some physical aspects of the ionosphere

    Publication Year: 1966, Page(s):217 - 226
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1213 KB)

    The paper surveys the current state of knowledge of the properties of the ionosphere, in particular those which have become more important or more accurately known through the use of sounding rockets and artificial Earth satellites. The atmosphere and its electrical propertiesare first discussed. An account of wave-electron interaction and incoherent scattering from electrons is followed by consid... View full abstract»

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  • Pulse response of delay lines. Part 2. m-derived delay lines

    Publication Year: 1966, Page(s):227 - 232
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (432 KB)

    Numerical solutions have been obtained for unit step response of m-derived delay lines in which inductive coupling exists between adjacent sections. It is shown that for optimum coupling both rise-time and overshoot are improved in comparison to constant-Ar delay lines. View full abstract»

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  • Letter to the Editor: The use of S.I. units

    Publication Year: 1966
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | PDF file iconPDF (118 KB)
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  • Gain and stability of tuned transistor r.f. and i.f. amplifiers

    Publication Year: 1966, Page(s):233 - 244
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1635 KB)

    The high level of feedback in transistor r.f. amplifiers is well known, and neutralizing must normally be regarded as merely reducing (not eliminating) this feedback. Criteria are established for gain and stability, and also for distortion of the frequency-response curve. Fromthe latter criterion, very simple practical design rules are arrived at: these are applicable to both single and multistage... View full abstract»

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  • Theory of reflections in a tapered waveguide

    Publication Year: 1966, Page(s):245 - 254
    Cited by:  Papers (6)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1041 KB)

    The tapered waveguide is regarded as a two-mode system, the modes being the forward and reverse waves. A reflection parameter can be defined, relating the amplitude of the reverse wave generated at a point in the taper to the amplitude of the forward wave at that point. The reflection parameter can be regarded as a coupling parameter between the two modes, and coupled-mode theory can be used to ob... View full abstract»

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  • Graphical derivation of trajectories for transistor-tunnel diode logic circuits

    Publication Year: 1966, Page(s):255 - 264
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1018 KB)

    A description is given of a graphical derivation of the switching trajectories of a transistor-tunnel diode circuit. With this method quicker solutions are achieved than when an analytical approach is used and the resultant accuracy compares favourably with that of solutions obtained using an analogue computer. View full abstract»

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