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Radio, miracle of the 20th century ... a story of human achievement that stands unrivalled in the history of humanity, together with a colorful portrayal, giving a broad, general view of the whole subject of wireless telegraph and telephone and its marvelous development (1922)

Drinker, Frederick E. [from old catalog], Lewis, James G., [from old catalog] joint author · [Philadelphia, Printed by National publishing co.] · leaf 323

An illustration from Radio, miracle of the 20th century ... a story of human achievement that stands unrivalled in the history of humanity, together with a colorful portrayal, giving a broad, general view of the whole subject of wireless telegraph and telephone and its marvelous development, 1922, leaf 323
chmore energy than that acting upon the grid, because thebattery, B, has added energy to the oscillation. A vacuum tube will amplify oscillations at any fre-quency, so that in radio apparatus some tubes are used toamplify radio frequency oscillations before they are de-tected, and some tubes are… … Oaeit/afion-Traiu Transform** « » Tb another^S ^amplifyingtvH 17 T de- lations requires minute attention to details which arebeyond the scope of this pamphlet. Tubes used as shown in figure 40 are said to be con-nected in cascade—the output of one tube being the inputof another tube. This transfer…

Radio

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