CPC Subgroup
H01J 23/02 Electrodes; Magnetic control means; Screens (associated with resonator or delay system H01J23/16)
Full Title
Details of transit-time tubes of the types covered by group H01J25/00 > Electrodes; Magnetic control means; Screens (associated with resonator or delay system H01J23/16)
7 direct subcodes
Child Classifications
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- H01J 23/027 Collectors
- H01J 23/04 Cathodes
- H01J 23/06 Electron or ion guns
- H01J 23/08 Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
- H01J 23/09 Electric systems for directing or deflecting the discharge along a desired path, e.g. E-type (focusing arrangements H01J23/08)
- H01J 23/10 Magnet systems for directing or deflecting the discharge along a desired path, e.g. a spiral path (magnetic focusing arrangements H01J23/08)
- H01J 23/11 Means for reducing noise (in electron or ion gun H01J23/06)