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GB1070134A - An ultrahigh-frequency disc-sealed thermionic tube - Google Patents

An ultrahigh-frequency disc-sealed thermionic tube

Info

Publication number
GB1070134A
GB1070134A GB617665A GB617665A GB1070134A GB 1070134 A GB1070134 A GB 1070134A GB 617665 A GB617665 A GB 617665A GB 617665 A GB617665 A GB 617665A GB 1070134 A GB1070134 A GB 1070134A
Authority
GB
United Kingdom
Prior art keywords
sealed
shield
ultrahigh
thermionic tube
feb
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
GB617665A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB1070134A publication Critical patent/GB1070134A/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

Landscapes

  • Microwave Tubes (AREA)

Abstract

1,070,134. Thermionic tubes. STANDARD TELEPHONES & CABLES Ltd. Feb. 12, 1965 [Feb. 19, 1964], No. 6176/65. Heading H1D. In a high-frequency disc-sealed thermionic tube, e.g. a klystron or, as shown, a triode valve, an insulating shield 21 is secured to one electrode terminal 15 and extends within insulating envelope portion 19, which is sealed between electrode terminals 11, 15, so that envelope portion 19 is protected from bombardment by stray electrons. The shield 21 may be of alumina or beryllia ceramic, and is provided with a conductive band 23 of Ni, Ti or C or other material having low secondary electron emission properties. The band 23 may be electrically connected to grid electrode 15 to prevent build-up of positive charge on shield 21.
GB617665A 1964-02-19 1965-02-12 An ultrahigh-frequency disc-sealed thermionic tube Expired GB1070134A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP893664 1964-02-19

Publications (1)

Publication Number Publication Date
GB1070134A true GB1070134A (en) 1967-05-24

Family

ID=11706536

Family Applications (1)

Application Number Title Priority Date Filing Date
GB617665A Expired GB1070134A (en) 1964-02-19 1965-02-12 An ultrahigh-frequency disc-sealed thermionic tube

Country Status (1)

Country Link
GB (1) GB1070134A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110396668A (en) * 2019-07-10 2019-11-01 西安交通大学 A carbon-based thin film for suppressing secondary electron emission and its preparation method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110396668A (en) * 2019-07-10 2019-11-01 西安交通大学 A carbon-based thin film for suppressing secondary electron emission and its preparation method

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