The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 441
immediately to the right of the point repre-senting zero voltage, good results may be obtained without anauxiliary battery. The rise will, of course, be most marked if , 1600 § IZOO §^ 1 600 ^ 400 20 10 0 / y ^ ^ »o- 10 ZO 1 FiQZ46 Curve showing thecarborundum detector to conductin one direction… … FigZ^ JJdion of crystal detector with booster batterij. the characteristic curve is concave downward. Galena, ironpyrites, silicon, and various other substances are so usedwithout a battery. The incoming voltage oscillations varyfrom a small positive voltage to a small negative voltage ofthe same…
Telegraph, Wireless · Radio
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