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  1. Welding with Covered Electrodes (1985 Video)

    Subject
    Engineering; Technology
    Distribution
    out of distribution, Videocassette. U-matic. VHS. col. 12 min., 2000 sale: £75.00 (+VAT +p&p)

    Explains the basic principles involved in welding with covered electrodes. Includes: the welder’s need for protective clothing, how the workpiece/power supply electrical connections are made, striking an...

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  2. Television Camera Tube, The (1972 Film, Video)

    Subject
    Film & television production; Technology
    Distribution
    Film (16mm)

    The vidicon type camera tube; the principles of operation of the various electrodes; the photo-sensitive layer; magnetic focusing and deflections.

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  3. High Speed Studies of Projection Welding (1967 Film, Video)

    Subject
    Technology
    Distribution
    Film (16mm)

    High-speed cinematography, in conjunction with special half-section projections and electrodes, is used to illustrate the behaviour of projections of various heights and shapes.

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