DIFF Subgroup Additional Only
H01J 2225/50 Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
Full Title
Transit-time tubes, e.g. Klystrons, travelling-wave tubes, magnetrons > Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Note: 2 CPC extensions are marked as secondary classification only.