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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 38

An illustration from 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, leaf 38
es, although the hardtubes may be used for all purposes. Regardless of the degree of vacuum, a tube contains, in 38 VACUUM TUBE AS RECTIFIER AND RELAY 39 addition to a filament, a grid and a plate arranged, forexample, as in Fig. 12. The grid is always placed betweenthe filament and the plate. The… … Glass Wall of Tube ■-Filament Support\ (Springy) Plate (cut away) Grid Support -WiresSealed here<■ Leading-inWires -Brass Shell Base <—-ProngsFig. 12—Construction of a typical vacuum tube. of the V and W shaped filaments are upwards. No matterwhat the filament shape, it is supported in such a…

Vacuum-tubes · Radio

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More pictures from 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

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