GB251073A - Improvements in or relating to thermionic valves - Google Patents

Improvements in or relating to thermionic valves

Info

Publication number
GB251073A
GB251073A GB775825A GB775825A GB251073A GB 251073 A GB251073 A GB 251073A GB 775825 A GB775825 A GB 775825A GB 775825 A GB775825 A GB 775825A GB 251073 A GB251073 A GB 251073A
Authority
GB
United Kingdom
Prior art keywords
anode
grid
shaped
filament
arched
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
GB775825A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB775825A priority Critical patent/GB251073A/en
Publication of GB251073A publication Critical patent/GB251073A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/02—Electron-emitting electrodes; Cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

251,073. Bullimore, W. R. March 23, 1925. Vacuum tubes. - A thermionic valve having a grid and anode of arched or V- shaped section has an arched or V-shaped filament which is supported by a resilient device at its apex for the purpose of maintaining it in correct spaced relationship with the grid and anode. The grid h, Fig. 5, and the anode i are each in the form of a pointed arch, and they are spaced apart at their upper ends by an insulating member f which carries a resilient support g connected to the apex of the filament a. Instead of being V-shaped, the filament may be of spiral formation with a circular, oval, or flat sided cross section, the grid and anode being correspondingly shaped. Specifications 197,853 and 233,045 are referred to.
GB775825A 1925-03-23 1925-03-23 Improvements in or relating to thermionic valves Expired GB251073A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB775825A GB251073A (en) 1925-03-23 1925-03-23 Improvements in or relating to thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB775825A GB251073A (en) 1925-03-23 1925-03-23 Improvements in or relating to thermionic valves

Publications (1)

Publication Number Publication Date
GB251073A true GB251073A (en) 1926-04-29

Family

ID=9839148

Family Applications (1)

Application Number Title Priority Date Filing Date
GB775825A Expired GB251073A (en) 1925-03-23 1925-03-23 Improvements in or relating to thermionic valves

Country Status (1)

Country Link
GB (1) GB251073A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797349A (en) * 1951-10-31 1957-06-25 Pensak Louis Ultra high frequency electron discharge devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797349A (en) * 1951-10-31 1957-06-25 Pensak Louis Ultra high frequency electron discharge devices

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