GB652742A - Gaseous electron discharge device - Google Patents

Gaseous electron discharge device

Info

Publication number
GB652742A
GB652742A GB32176/47A GB3217647A GB652742A GB 652742 A GB652742 A GB 652742A GB 32176/47 A GB32176/47 A GB 32176/47A GB 3217647 A GB3217647 A GB 3217647A GB 652742 A GB652742 A GB 652742A
Authority
GB
United Kingdom
Prior art keywords
shield
anode
nickel
control electrode
tubular
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
GB32176/47A
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 GB652742A publication Critical patent/GB652742A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/50—Thermionic-cathode tubes
    • H01J17/52—Thermionic-cathode tubes with one cathode and one anode
    • H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
    • H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control

Landscapes

  • Microwave Tubes (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

652,742. Thermionic valves. RADIO CORPORATION OF AMERICA. Dec. 5, 1947, No. 32176. Convention date, Feb. 5. [Class 39 (i)] In a gaseous thermionic valve in which the electrodes are enclosed in a tubular metal shield 20 having an apertured portion 26 extending between the anode 16 and a control electrode 18, the shield has a rough coating of nickel metal particles sintered to its outer surface, to minimize electron emission from the shield by reduction of the operating temperature within the shield. The shield may be negatively biassed relative to the anode. The control electrode 18 comprises an elongated metal ribbon loop providing an aperture 17 aligned with the cathode cylinder 14 and the anode plate 16. Shield plates 19, 21, Fig. 1, close the top and bottom ends of the tubular shield 20. Nickel oxide mixed with a nitrocellulose binder is applied to the shield such as by painting, spraying or dipping. The coated shield is air dried and then placed in a hydrogen furnace for approximately 10 minutes at 1000‹ C., or over a longer period of time at 700‹ C., to reduce the nickel oxide to finely-divided nickel particles.
GB32176/47A 1947-02-05 1947-12-05 Gaseous electron discharge device Expired GB652742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US726608A US2516675A (en) 1947-02-05 1947-02-05 Electrode structure for gas discharge devices

Publications (1)

Publication Number Publication Date
GB652742A true GB652742A (en) 1951-05-02

Family

ID=24919287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32176/47A Expired GB652742A (en) 1947-02-05 1947-12-05 Gaseous electron discharge device

Country Status (4)

Country Link
US (1) US2516675A (en)
BE (1) BE480117A (en)
FR (1) FR957927A (en)
GB (1) GB652742A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813217A (en) * 1952-03-18 1957-11-12 Rca Corp Electrode arrangement for gas tubes
US2770751A (en) * 1953-02-27 1956-11-13 Rca Corp Construction of gas-filled tubes, particularly shielding
US2853652A (en) * 1953-10-12 1958-09-23 Gen Electric Light responsive system
US2797364A (en) * 1954-01-26 1957-06-25 Niles Breger Apparatus for dimming automobile head lights
US2777966A (en) * 1954-03-08 1957-01-15 Rca Corp Gas discharge devices
US3084282A (en) * 1961-01-03 1963-04-02 Space Technology Lab Inc Trigger circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1794315A (en) * 1924-10-09 1931-02-24 Gen Electric Electron-discharge apparatus
US2040883A (en) * 1935-05-29 1936-05-19 Solomon Guillermo Electronic tube
US2160086A (en) * 1936-12-05 1939-05-30 Bell Telephone Labor Inc Electron discharge device
US2203639A (en) * 1939-08-26 1940-06-04 Electrons Inc Vacuum tube construction
US2431237A (en) * 1945-10-19 1947-11-18 Westinghouse Electric Corp Control circuit

Also Published As

Publication number Publication date
US2516675A (en) 1950-07-25
FR957927A (en) 1950-02-28
BE480117A (en)

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