[go: up one dir, main page]

GB243200A - Improvements in electron discharge devices - Google Patents

Improvements in electron discharge devices

Info

Publication number
GB243200A
GB243200A GB279925A GB279925A GB243200A GB 243200 A GB243200 A GB 243200A GB 279925 A GB279925 A GB 279925A GB 279925 A GB279925 A GB 279925A GB 243200 A GB243200 A GB 243200A
Authority
GB
United Kingdom
Prior art keywords
metal
getter
coiled
aluminium
valves
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
GB279925A
Other languages
English (en)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to GB279925A priority Critical patent/GB243200A/en
Priority to FR597658D priority patent/FR597658A/fr
Publication of GB243200A publication Critical patent/GB243200A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/186—Getter supports

Landscapes

  • Electron Sources, Ion Sources (AREA)
GB279925A 1925-01-31 1925-01-31 Improvements in electron discharge devices Expired GB243200A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB279925A GB243200A (en) 1925-01-31 1925-01-31 Improvements in electron discharge devices
FR597658D FR597658A (fr) 1925-01-31 1925-04-29 Perfectionnements aux appareils à décharge électronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB279925A GB243200A (en) 1925-01-31 1925-01-31 Improvements in electron discharge devices

Publications (1)

Publication Number Publication Date
GB243200A true GB243200A (en) 1925-11-26

Family

ID=9746132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB279925A Expired GB243200A (en) 1925-01-31 1925-01-31 Improvements in electron discharge devices

Country Status (2)

Country Link
FR (1) FR597658A (fr)
GB (1) GB243200A (fr)

Also Published As

Publication number Publication date
FR597658A (fr) 1925-11-26

Similar Documents

Publication Publication Date Title
US2413731A (en) Manufacture of electron discharge devices
US2125280A (en) Electron discharge apparatus
GB243200A (en) Improvements in electron discharge devices
GB492983A (en) Improvements in or relating to electron discharge valves
GB375851A (en) Improvements in and relating to electric discharge devices
US1790153A (en) Electrical discharge device and method of operation
GB499681A (en) Electron discharge devices
US1699112A (en) maorae
US1722121A (en) Electron-discharge device
US1961814A (en) Electrical discharge device
US2030437A (en) Electric discharge device
GB385898A (en) Improvements in and relating to electric discharge devices
US2151522A (en) Incandescent lamp with means to reduce bulb blackening
US1590352A (en) Electron-discharge device
GB262069A (en) Means for producing high vacuum
GB271885A (en) Improvements in or relating to vacuum electric tube devices
GB225584A (en) Improvements in thermionic valve devices
US2040530A (en) Electron discharge device
GB268986A (en) Improvements in or relating to electric incandescent lamps
GB289975A (en) Improvements in or relating to electric vacuum or gas-filled tubes
GB365303A (en) Electron tube with incandescent cathode
GB237919A (en) Improvements in and relating to valves for wireless telegraphy and telephony
GB430975A (en) Improvements in or relating to electric discharge tubes
GB281262A (en) Improvements in or relating to electron emitting cathodes
US1560740A (en) Electron-discharge device