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GB529882A - Improvements in or relating to multi-grid electron discharge tubes - Google Patents

Improvements in or relating to multi-grid electron discharge tubes

Info

Publication number
GB529882A
GB529882A GB1701839A GB1701839A GB529882A GB 529882 A GB529882 A GB 529882A GB 1701839 A GB1701839 A GB 1701839A GB 1701839 A GB1701839 A GB 1701839A GB 529882 A GB529882 A GB 529882A
Authority
GB
United Kingdom
Prior art keywords
relating
discharge tubes
electron discharge
cathode
grid electron
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
GB1701839A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB1701839A priority Critical patent/GB529882A/en
Publication of GB529882A publication Critical patent/GB529882A/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

  • Amplifiers (AREA)

Abstract

529,882. Thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and YOUNG, A. J. June 9, 1939, No. 17018. [Class 39 (i)] A multigrid valve is provided with a short auxiliary anode or anodes arranged symmetrically within the end of the cathode and connected to the suppressor grid either inside or outside the tube. The invention is particularly applicable to pentodes in which audio frequency modulation is applied to the suppressor grid. In the arrangement shown the cathode 2 is a filament of double V form and a rod forming an anode projects symmetrically into the open end of each V.
GB1701839A 1939-06-09 1939-06-09 Improvements in or relating to multi-grid electron discharge tubes Expired GB529882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1701839A GB529882A (en) 1939-06-09 1939-06-09 Improvements in or relating to multi-grid electron discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1701839A GB529882A (en) 1939-06-09 1939-06-09 Improvements in or relating to multi-grid electron discharge tubes

Publications (1)

Publication Number Publication Date
GB529882A true GB529882A (en) 1940-11-29

Family

ID=10087740

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1701839A Expired GB529882A (en) 1939-06-09 1939-06-09 Improvements in or relating to multi-grid electron discharge tubes

Country Status (1)

Country Link
GB (1) GB529882A (en)

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