The A B C of vacuum tubes in radio reception; an elementary and practical book on the theory and operation of vacuum tubes as detectors and amplifiers. Explains non-mathematically the fundamental principles upon which all vacuum tube circuits are based. Includes practical circuits and practical questions and answers. It is written especially for the beginner. All electrical and radio terms are fully explained (1922)
Lewis, Elmer Hugh, 1889- · New York, Norman W. Henley Pub. Co. · leaf 39
The lowerend of the filament wire is welded to a shorter nickle rodand both rods are anchored into a glass stem. The longerrod is springy, so that it will hold the filament taught. 40 VACUUM TUBE RECTIFIER The grid may be a mesh of nickle wire wound about twosupports. In the figure it is shown as a… … Fig. 13—Various forms of vacuum tubes and sockets. the glass stem. The grid must, in any case, be rigid enoughto withstand considerable jarring. The plate may be of molybdenum, nickle or thin sheet steel.It is quite often cylindrical in shape, but may also be flat orshaped like a cylinder flattened…
Vacuum-tubes · Radio
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