GB386959A - Improvements in and relating to electron discharge tubes - Google Patents

Improvements in and relating to electron discharge tubes

Info

Publication number
GB386959A
GB386959A GB12057/31A GB1205731A GB386959A GB 386959 A GB386959 A GB 386959A GB 12057/31 A GB12057/31 A GB 12057/31A GB 1205731 A GB1205731 A GB 1205731A GB 386959 A GB386959 A GB 386959A
Authority
GB
United Kingdom
Prior art keywords
carrier
barium
vapour
anode
class
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
GB12057/31A
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.)
Egyesuelt Izzolampa es Villamossagi Rt
Original Assignee
Egyesuelt Izzolampa es Villamossagi Rt
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 Egyesuelt Izzolampa es Villamossagi Rt filed Critical Egyesuelt Izzolampa es Villamossagi Rt
Publication of GB386959A publication Critical patent/GB386959A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
GB12057/31A 1930-07-10 1931-04-23 Improvements in and relating to electron discharge tubes Expired GB386959A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU386959X 1930-07-10

Publications (1)

Publication Number Publication Date
GB386959A true GB386959A (en) 1933-01-26

Family

ID=10979020

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12057/31A Expired GB386959A (en) 1930-07-10 1931-04-23 Improvements in and relating to electron discharge tubes

Country Status (3)

Country Link
BE (1) BE381048A (fr)
FR (1) FR716233A (fr)
GB (1) GB386959A (fr)

Also Published As

Publication number Publication date
FR716233A (fr) 1931-12-17
BE381048A (fr)

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