GB497115A - Improvements in large thermionic valves - Google Patents

Improvements in large thermionic valves

Info

Publication number
GB497115A
GB497115A GB3561637A GB3561637A GB497115A GB 497115 A GB497115 A GB 497115A GB 3561637 A GB3561637 A GB 3561637A GB 3561637 A GB3561637 A GB 3561637A GB 497115 A GB497115 A GB 497115A
Authority
GB
United Kingdom
Prior art keywords
valve
cap
grid
control grid
lead
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
GB3561637A
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.)
MO Valve Co Ltd
Original Assignee
MO Valve 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 MO Valve Co Ltd filed Critical MO Valve Co Ltd
Priority to GB3561637A priority Critical patent/GB497115A/en
Publication of GB497115A publication Critical patent/GB497115A/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
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/32—Anodes
    • H01J19/34—Anodes forming part of the envelope
    • 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
    • H01J2893/0002—Construction arrangements of electrode systems
    • H01J2893/0003—Anodes forming part of vessel walls

Landscapes

  • Hybrid Cells (AREA)

Abstract

497,115. Thermionic valves. M-O VALVE CO., Ltd., and LE ROSSIGNOL, R. Dec. 23, 1937, No. 35616. [Class 39 (i)] In large thermionic valves of the type in which at least one screening electrode shields the control grid from the anode, a metal cap 14 is fixed to the exterior of the valve, but is joined to and effectively continues the screening electrode within the valve, and an aperture 22 is provided in the cap through which the shielded lead 23 to the control grid 8 is adapted to pass so as to connect the control grid to the shielded remainder of the input circuit. The opening 22 is surrounded by a short cylinder 25 which telescopes into a cylinder 26 between the cap 14 and the box 24 containing the valve of a previous stage. The embodiment described consists of a valve having an external water-cooled anode 1, cathode 6, control grid 8 screen grid 10 and suppressor grid 11, which is connected to the cap 14 by the lead 13 and the extension 12 passing between the walls of the re-entrant glass foot tube 3. The lead 5, 17 to cathode and screen grid pass through insulating bushes 16, 18 and a condenser 21 is connected between the leads 13 and 17.
GB3561637A 1937-12-23 1937-12-23 Improvements in large thermionic valves Expired GB497115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3561637A GB497115A (en) 1937-12-23 1937-12-23 Improvements in large thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3561637A GB497115A (en) 1937-12-23 1937-12-23 Improvements in large thermionic valves

Publications (1)

Publication Number Publication Date
GB497115A true GB497115A (en) 1938-12-13

Family

ID=10379698

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3561637A Expired GB497115A (en) 1937-12-23 1937-12-23 Improvements in large thermionic valves

Country Status (1)

Country Link
GB (1) GB497115A (en)

Similar Documents

Publication Publication Date Title
GB556046A (en) Improvements relating to electron guns such as are used in cathode ray tubes
GB546507A (en) Cathode ray tube circuits
GB497115A (en) Improvements in large thermionic valves
GB538381A (en) Improvements in or relating to thermionic valve apparatus
GB498577A (en) Improved circuit arrangement comprising a discharge tube
GB645937A (en) Improvements in or relating to velocity-modulated electron discharge devices
GB475772A (en) Improvements in electric discharge tubes
GB461450A (en) Improvements in or relating to electric discharge devices
GB490566A (en) Improvements in high frequency pentodes
GB520041A (en) Improvements in or relating to thermionic valves
GB471672A (en) Improvements in or relating to electron discharge devices
GB716684A (en) Electron tubes
GB464064A (en) Back-coupled circuit for cathode-ray tube, more especially for television purposes
US2040267A (en) Electron discharge device
GB609845A (en) Improvements in or relating to circuits for electric discharge tubes
GB537276A (en) Electron discharge devices incorporating electron multipliers
GB481549A (en) Cathode ray discharge devices
GB619767A (en) Improvements in electronic discharge devices
GB498566A (en) Improvements in electron multipliers
GB382540A (en) Improvements relating to electron discharge tubes
GB541919A (en) Improvements in controlled rectifiers with thermionic cathodes
GB518580A (en) Improvements in or relating to cathode ray tubes
GB552846A (en) Improvements in devices of the electrostatically-controlled arc discharge type
GB507270A (en) Electron discharge devices
GB614813A (en) A circuit-arrangement comprising a secondary electron-emission tube