GB261915A - Improvements in thermionic valves - Google Patents

Improvements in thermionic valves

Info

Publication number
GB261915A
GB261915A GB2999025A GB2999025A GB261915A GB 261915 A GB261915 A GB 261915A GB 2999025 A GB2999025 A GB 2999025A GB 2999025 A GB2999025 A GB 2999025A GB 261915 A GB261915 A GB 261915A
Authority
GB
United Kingdom
Prior art keywords
filament
portions
wires
anode
secured
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
GB2999025A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB2999025A priority Critical patent/GB261915A/en
Publication of GB261915A publication Critical patent/GB261915A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

261,915. General Electric Co., Ltd., and Smith, F. Nov. 27, 1925. Vacuum tubes. - In thermionic valves in which the cathode filament comprises two parallel straight portions 1, a spiral single-wire grid 10 and an anode 12 surrounding the filament are each indented longitudinally along the mid portions 17, 18 of their sides. The electrodes are all supported from a glass pinch, the anode being secured by wires 19 to supports 13 and the filament portions 1 being secured at the lower end by wires to a single support and lead and at the upper end by wires to springs 6 on a cross-piece 7 on a support 8. The filament portions may be in series instead of in parallel. Specifications 203,962, 239,736 and 240,944 are referred to.
GB2999025A 1925-11-27 1925-11-27 Improvements in thermionic valves Expired GB261915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2999025A GB261915A (en) 1925-11-27 1925-11-27 Improvements in thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2999025A GB261915A (en) 1925-11-27 1925-11-27 Improvements in thermionic valves

Publications (1)

Publication Number Publication Date
GB261915A true GB261915A (en) 1926-12-02

Family

ID=10300463

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2999025A Expired GB261915A (en) 1925-11-27 1925-11-27 Improvements in thermionic valves

Country Status (1)

Country Link
GB (1) GB261915A (en)

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