Comparative sensitiveness of some common detectors of electric oscillations (1910)
National Bureau of Standards · leaf 25
Fig. 5 In Table VIII is given the relation between oscillatory energyin the main circuit and the audibility of signals in the telephoneof the vacuum detector, as determined by the shunted telephonemethod. The audibility is seen to be proportional to the energy.The telephones furnished with the… … Fig. 6 tween the filament and the plate. The filament and plate areconnected externally through a battery B of 36 small cells, anynumber of which can be thrown into the circuit, and a pair ofhead telephones of about 1200 ohms resistance. The filament Austin.) Detectors of Electrical Oscillations.…
Radiotelegraphy · Measurements and use of instruments · Telephony B6210F Telegraphy
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