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Publication of BE408282ApublicationCriticalpatent/BE408282A/xx
H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
H03C1/18—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid
H03C1/24—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to different grid