H03C1/18 - CPC Classification

Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid

• H03C1/20 » modulating signal applied to anode 2
• H03C1/22 » modulating signal applied to same grid 0
• H03C1/24 » modulating signal applied to different grid 0
• H03C1/26 » modulating signal applied to cathode 0