GB1137772A - Electron tube - Google Patents

Electron tube

Info

Publication number
GB1137772A
GB1137772A GB13608/66A GB1360866A GB1137772A GB 1137772 A GB1137772 A GB 1137772A GB 13608/66 A GB13608/66 A GB 13608/66A GB 1360866 A GB1360866 A GB 1360866A GB 1137772 A GB1137772 A GB 1137772A
Authority
GB
United Kingdom
Prior art keywords
tab
grid
bulge
cathode
predetermined angle
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
GB13608/66A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB1137772A publication Critical patent/GB1137772A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/88—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • H01J1/94—Mountings for individual electrodes
    • 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
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • 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
    • H01J2893/0005—Fixing of electrodes

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

1,137,772. Electric discharge tubes. RADIO CORPORATION OF AMERICA. 28 March, 1966 [23 April, 1965], No. 13608/66. Heading H1D In an electron tube comprising a round tubular cathode 16 having a longitudinally extending bulge 22, the bulge 22 is arranged by means of a tab 24 to be adjacent an inactive portion of the grid. As shown, the grid is of the " formed round " type with a lateral wire helix 30 wound around and between side rods 26, 28 and has inactive portions adjacent the side rods 26, 28 and active portions adjacent the arcuate central portions 31 of the wire helix. Tab 24 is affixed to the cathode at a predetermined angle to the bulge, which may be a lock seam, so that during manufacture the tab may be set at this predetermined angle to the inactive portion of the grid, thus correctly aligning the bulge with respect to the grid. The tab may be welded to the cathode or formed integrally with it.
GB13608/66A 1965-04-23 1966-03-28 Electron tube Expired GB1137772A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US450440A US3343029A (en) 1965-04-23 1965-04-23 Electron tube having a seamed cathode therein

Publications (1)

Publication Number Publication Date
GB1137772A true GB1137772A (en) 1968-12-27

Family

ID=23788103

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13608/66A Expired GB1137772A (en) 1965-04-23 1966-03-28 Electron tube

Country Status (2)

Country Link
US (1) US3343029A (en)
GB (1) GB1137772A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2079057A (en) * 1931-06-01 1937-05-04 Raytheon Production Corp Thermionic cathode
US2220909A (en) * 1940-01-23 1940-11-12 Kershaw Henry Cathode sleeve for thermionic valves
US2263660A (en) * 1940-03-30 1941-11-25 Rca Corp Cathode sleeve
US2266622A (en) * 1940-07-31 1941-12-16 Rca Corp Cathode sleeve

Also Published As

Publication number Publication date
US3343029A (en) 1967-09-19

Similar Documents

Publication Publication Date Title
GB1137772A (en) Electron tube
GB1009986A (en) Electron emitting element for electron gun
GB982206A (en) Thermionic cathodes
US2695442A (en) Method of manufacturing electric discharge tubes
US2414581A (en) Cathode assembly for magnetrons
CH412118A (en) Electric discharge tube with a cathode, the outside of which consists of barium-activated alkaline earth metal oxides
GB953634A (en) Electron discharge device
GB1336829A (en) Filamentary electrode and fabrication thereof
GB931059A (en) Improvements in and relating to thermionic cathodes
US2084734A (en) Electron discharge device
GB1196072A (en) Improved Circuit Severs for Travelling Wave Tubes
AT262459B (en) Electric discharge tube with a cathode, the surface of which has parts with higher and parts with lower electron emission
US2422141A (en) Filament structure for electrical discharge devices
US2041904A (en) Grid construction
US2910609A (en) Low microphonics tube structures
US3161799A (en) Frame grid
US2727176A (en) Electrical discharge tube
GB972385A (en) Improvements in or relating to electron discharge devices
US2780747A (en) Electrical discharge devices
US2733374A (en) Gaseous dischargefdevices having a free
US2387238A (en) Thermionic tube and anode plate therefor
US2900553A (en) Electron tube electrode
GB963317A (en) Improvements in or relating to travelling-wave tubes
GB1179731A (en) Electron Tube having an improved Directly-Heated Cathode Structure
US2042929A (en) Electron discharge device and anode therefor