Ballard, William Cyrus, Jr · New York [etc.] McGraw-Hill company, inc. · leaf 72
e the iron becomes nearlysaturated, that is, it will only sMghtly respond to furtherincreases in current. This changes the characteristics ofthe high-frequency coil also and hence the current in theantenna. This effect is varied to a greater or less degreedepending upon the value of current flowing… … mkrophona /ron core Fig. 23.—Magnetic modulator showing connections to power tubeoscillator and antenna. The current-carrying capacity of this apparatus is notlimited as was the case with the microphone and it can beemployed to modulate very, large outputs. For simplicity ofoperation it can hardly…
Radio
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