H01J19/00 - CPC Classification

Details of vacuum tubes of the types covered by group

• H01J19/02 » Electron-emitting electrodes; Cathodes 8
• H01J19/28 » Non-electron-emitting electrodes; Screens 5
• H01J19/42 » Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies 19
• H01J19/54 » Vessels; Containers; Shield associated therewith 14
• H01J19/58 » Seals between parts of vessels 1
• H01J19/60 » Seals for leading-in conductors 1
• H01J19/62 » Leading-in conductors 1
• H01J19/64 » Means forming part of the tube for the purpose supporting it 1
• H01J19/66 » Means forming part of the tube for the purpose of providing electrical connection to it 2
• H01J19/68 » Specified gas introduced into the tube at low pressure, e.g. for reducing or influencing space charge 0
• H01J19/70 » Means for obtaining or maintaining the vacuum, e.g. by gettering 4
• H01J19/74 » Cooling arrangements 1
• H01J19/76 » Means structurally associated with the tube for indicating defects or previous use 0
• H01J19/78 » One or more circuit elements structurally associated with the tube 7
• H01J19/82 » Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for 6