Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
  • H01J1/02—Main electrodes
  • H01J1/13—Solid thermionic cathodes
  • H01J1/15—Cathodes heated directly by an electric current
  • H01J1/18—Supports; Vibration-damping arrangements
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J21/00—Vacuum tubes
  • H01J21/02—Tubes with a single discharge path
  • H01J21/06—Tubes with a single discharge path having electrostatic control means only
  • H01J21/16—Tubes with a single discharge path having electrostatic control means only with external electrostatic control means and with or without internal control electrodes

Applications Claiming Priority (1)

Publications (1)

Family

ID=6304538

Family Applications (1)

Country Status (6)

• 1930
  • 1930-03-27 DE DE1930587216D patent/DE587216C/de not_active Expired
  • 1930-08-19 AT AT126303D patent/AT126303B/de active
  • 1930-09-18 NL NL30034D patent/NL30034C/xx active
  • 1930-10-31 BE BE373149D patent/BE373149A/xx unknown
  • 1930-11-14 FR FR705542D patent/FR705542A/fr not_active Expired
• 1931
  • 1931-03-12 GB GB7673/31A patent/GB362272A/en not_active Expired

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