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GB415440A - Improvements in or relating to thermionic valves for use in wireless receiving systems - Google Patents

Improvements in or relating to thermionic valves for use in wireless receiving systems

Info

Publication number
GB415440A
GB415440A GB572333A GB572333A GB415440A GB 415440 A GB415440 A GB 415440A GB 572333 A GB572333 A GB 572333A GB 572333 A GB572333 A GB 572333A GB 415440 A GB415440 A GB 415440A
Authority
GB
United Kingdom
Prior art keywords
grid
rods
relating
earthed
pinch
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
GB572333A
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.)
AC Cossor Ltd
Original Assignee
AC Cossor 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 AC Cossor Ltd filed Critical AC Cossor Ltd
Priority to GB572333A priority Critical patent/GB415440A/en
Publication of GB415440A publication Critical patent/GB415440A/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
    • H01J19/40—Screens for shielding
    • 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

Landscapes

  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

415,440. Thermionic valves. COSSOR, Ltd., A. C., and WALKER, F. M., Highbury Grove, London. Feb. 24, 1933, No. 5723. [Class 39 (i).] Insulating spacing members in a thermionic valve are rigidly supported from the pinch by two metal rods which are connected, by short metal rods passing over said spacing members, to the supporting rods of a grid which is earthed when the valve is in use. The grid may also be connected to the cathode when this is substantially earthed with respect to high-frequency currents. In the example shown, a screen-grid pentode has its electrodes spaced apart by mica bridges 7 8, and rigidly supported by rods 10, 11 sealed into the pinch, and connected to the suppressor grid 4 by short rods 12, 13. The screen grid 3 has a cap 3<a> closing it at the top and further screening is provided by a shield 3b supported on and electrically connected to the rods 10, 11. The cathode may be directly or indirectly heated.
GB572333A 1933-02-24 1933-02-24 Improvements in or relating to thermionic valves for use in wireless receiving systems Expired GB415440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB572333A GB415440A (en) 1933-02-24 1933-02-24 Improvements in or relating to thermionic valves for use in wireless receiving systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB572333A GB415440A (en) 1933-02-24 1933-02-24 Improvements in or relating to thermionic valves for use in wireless receiving systems

Publications (1)

Publication Number Publication Date
GB415440A true GB415440A (en) 1934-08-24

Family

ID=9801412

Family Applications (1)

Application Number Title Priority Date Filing Date
GB572333A Expired GB415440A (en) 1933-02-24 1933-02-24 Improvements in or relating to thermionic valves for use in wireless receiving systems

Country Status (1)

Country Link
GB (1) GB415440A (en)

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