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PCE
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DIFF Subgroup
H03C 1/18

carrier applied to control grid

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

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

CPC:

Amplitude modulation (H03C5/00, H03C7/00 take precedence) > by means of discharge device having at least three electrodes (H03C1/28 - H03C1/34, H03C1/50, H03C1/52, H03C1/62 take precedence) > carrier applied to control grid

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

Child Classifications

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  • H03C 1/20 modulating signal applied to anode IPC+CPC Available in IPC and CPC
  • H03C 1/22 modulating signal applied to same grid IPC+CPC Available in IPC and CPC
  • H03C 1/24 modulating signal applied to different grid IPC+CPC Available in IPC and CPC
  • H03C 1/26 modulating signal applied to cathode IPC+CPC Available in IPC and CPC