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PCE
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DIFF Subgroup
H01J 25/10

Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons > Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving-up energy in an inducing zone, the zones being associated with one or more resonators > Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator

CPC:

Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons (details of transit-time tubes H01J23/00; particle accelerators H05H) > Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators > Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

Child Classifications

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  • H01J 25/11 Extended interaction klystrons since 1974 IPC+CPC Available in IPC and CPC
  • H01J 25/12 with pencil-like electron stream in the axis of the resonators IPC+CPC Available in IPC and CPC
  • H01J 25/14 with tube-like electron stream coaxial with the axis of the resonators IPC+CPC Available in IPC and CPC
  • H01J 25/16 with pencil-like electron stream perpendicular to the axis of the resonators IPC+CPC Available in IPC and CPC
  • H01J 25/18 with radial or disc-like electron stream perpendicular to the axis of the resonators IPC+CPC Available in IPC and CPC
  • H01J 25/20 having special arrangements in the space between resonators, e.g. resistive-wall amplifier tube, space-charge amplifier tube, velocity-jump tube IPC+CPC Available in IPC and CPC