GB230492A - Improvements in and relating to electric discharge vessels, tubes or the like - Google Patents

Improvements in and relating to electric discharge vessels, tubes or the like

Info

Publication number
GB230492A
GB230492A GB637925A GB637925A GB230492A GB 230492 A GB230492 A GB 230492A GB 637925 A GB637925 A GB 637925A GB 637925 A GB637925 A GB 637925A GB 230492 A GB230492 A GB 230492A
Authority
GB
United Kingdom
Prior art keywords
tubes
relating
electric discharge
molybdenum
discharge vessels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB637925A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ERICH F HUTH GES fur FUNKENTE
Original Assignee
ERICH F HUTH GES fur FUNKENTE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ERICH F HUTH GES fur FUNKENTE filed Critical ERICH F HUTH GES fur FUNKENTE
Publication of GB230492A publication Critical patent/GB230492A/en
Expired legal-status Critical Current

Links

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
    • H01J1/14—Solid thermionic cathodes characterised by the material

Landscapes

  • Discharge Lamp (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

230,492. Huth Ges. f³r Funkentelegraphie, Dr. E. F. March 8, 1924, [Convention date]. Vacuum tubes. - A thermionic cathode and electrodes producing a secondary emission of electrons are made of a mixture or an alloy of molybdenum and thorium which is capable of emitting electrons without the employment of any heat treatment for rendering it active; or an electrode of molybdenum is mounted in a bulb and heated for a short time before or after being coated with thorium nitrate, no reducing or binding agent being employed. Specification 230,226 is referred to.
GB637925A 1924-03-08 1925-03-09 Improvements in and relating to electric discharge vessels, tubes or the like Expired GB230492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH96429D DE496888C (en) 1924-03-08 1924-03-08 Electron-active layer on cathodes of discharge vessels

Publications (1)

Publication Number Publication Date
GB230492A true GB230492A (en) 1926-06-03

Family

ID=7167551

Family Applications (1)

Application Number Title Priority Date Filing Date
GB637925A Expired GB230492A (en) 1924-03-08 1925-03-09 Improvements in and relating to electric discharge vessels, tubes or the like

Country Status (2)

Country Link
DE (1) DE496888C (en)
GB (1) GB230492A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524001A (en) * 1948-05-19 1950-09-26 Raytheon Mfg Co Compressed cathode support structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524001A (en) * 1948-05-19 1950-09-26 Raytheon Mfg Co Compressed cathode support structure

Also Published As

Publication number Publication date
DE496888C (en) 1930-04-29

Similar Documents

Publication Publication Date Title
GB716412A (en) Improvements in cylindrical cathodes
GB639013A (en) Fluorescent electric discharge lamp
GB504120A (en) Improvements in electrodes for high-pressure mercury-vapour discharge devices
GB478024A (en) Improvements in or relating to thermionic cathodes for high pressure metal vapour discharge devices
GB230492A (en) Improvements in and relating to electric discharge vessels, tubes or the like
GB346957A (en) Improvements in and relating to electron discharge devices
GB804697A (en) Improvements in x-ray tubes
GB613946A (en) Improvements in or relating to thermionic tubes having a secondary-emission electrode
GB395529A (en) Improvements in and relating to electric discharge tubes
GB267142A (en) Improvements in thermionic electrodes
GB434643A (en) Improvements in or relating to electron discharge devices
GB415398A (en) Improvements relating to indirectly heated cathodes for electron discharge devices
GB301855A (en) Improvements in or relating to electronic discharge bulbs
GB169546A (en) Improvements in or relating to electron discharge devices
GB500017A (en) Improvements in cathode ray tubes
GB525465A (en) Improvements relating to high pressure mercury-vapour electric discharge tubes
GB533451A (en) Improvements in and relating to electric discharge devices
GB479190A (en) Improvements in electric discharge tubes
GB365303A (en) Electron tube with incandescent cathode
GB597503A (en) Improvements in or relating to electric discharge tubes
GB495632A (en) Improvements in or relating to electric high-pressure metal-vapour discharge tubes
GB406905A (en) Improvements in or relating to electron emitting cathodes suitable for use in electron discharge devices
GB370298A (en) Improvements in or relating to electrodes and electrode arrangements for electron tubes
GB257604A (en) Vacuum tubes
GB319686A (en) Improvements relating to electrical discharge devices