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Radio and Electronic Engineer

Issue 6 • Date June 1974

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Displaying Results 1 - 10 of 10
  • The Eighth Clerk Maxwell Memorial Lecture. Our space programme after Apollo

    Publication Year: 1974, Page(s):297 - 305
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3845 KB)

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  • The Eighth Clerk Maxwell Memorial Lecture London: 21st March 1974

    Publication Year: 1974
    IEEE is not the copyright holder of this material | PDF file iconPDF (1027 KB)
    Freely Available from IEEE
  • Track straightness in helical scan video tape recorders

    Publication Year: 1974, Page(s):307 - 311
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (568 KB)

    This paper describes a way of achieving interchangeability of tapes recorded on helical scan video tape recorders and lays stress on the shape of the trace of the video head actually recorded on the tape. It describes a method of measuring straightness of track that has been used in a factory producing cassette v.t.r.s. View full abstract»

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  • Mechanical wear and degeneration of the magnetic properties of magnetic heads caused by the tape

    Publication Year: 1974, Page(s):313 - 318
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2233 KB)

    One kind of abrasive wear of magnetic heads is characterized by the generation of a lot of small scratches (typical dimensions: 0.1 ¿m) due to hard particles embedded in the tape. After scratching, the outer head surface is left under a very high compressive stress (up to 3000 N/mm2in ferrites) which greatly change the magnetic properties of the material. This gives rise to a decreasing short-wav... View full abstract»

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  • New design curves for exponentially tapered distributed RC networks

    Publication Year: 1974, Page(s):319 - 320
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (191 KB)

    A modification to the basic method of curvilinear squares used to design the geometric shape of exponentially tapered distributed RC networks is described. It is shown that the new method simplifies the design process and also makes it easy to check if a projected taper can be fitted in a specified space on a substrate. View full abstract»

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  • An expansion method for calculation of low-frequency Hall effect and magneto-resistance

    Publication Year: 1974, Page(s):321 - 325
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (469 KB)

    The potential equation in three dimensions for a semiconductor, placed in an external magnetic field, is derived. This equation is solved by an expansion technique. The first-order expansion gives the Hall effect, whereas the second-order describes the magneto-resistance effect. The theory is applied to a rectangular and a cylindrical volume, which are treated analytically. View full abstract»

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  • Synthesis of narrowband cascaded crystal-capacitor lattice filters

    Publication Year: 1974, Page(s):326 - 330
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (427 KB)

    A design procedure is given for crystal lattice filters with a maximum bandwidth for quartz of approximately 0.15% of the centre frequency; the method results in simple formulae in terms of the elements of a low-pass ladder of any order. View full abstract»

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  • First engineers registration board assembly

    Publication Year: 1974, Page(s):333 - 335
    IEEE is not the copyright holder of this material | PDF file iconPDF (706 KB)
    Freely Available from IEEE
  • CEI news

    Publication Year: 1974, Page(s):336 - 338
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (316 KB)

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  • Recent government and industry publications

    Publication Year: 1974
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (178 KB)

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