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 64
nt value, usually, so that the tone doesnot change at any time. Different transmitting stations may,however, select different group frequencies and therefore pro-duce tones in a receiver which differ from each other. A trans- VACUUM TUBE DETECTOR 65 mitting station can then often be identified by… … ^—Normal Grid Potential —Audio Frequency GridPotential Variations.(Only one Cycle shown.) ■Radio Frequency GridPotential Variations. Fig. 24—Detection of modulated continuous oscillations at a constant group frequency. frequency current amplitudes are not always varied at the sameaudible frequency…
Vacuum-tubes · Radio
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