GB635038A - Improvements in or relating to thermionic valves - Google Patents

Improvements in or relating to thermionic valves

Info

Publication number
GB635038A
GB635038A GB314848A GB314848A GB635038A GB 635038 A GB635038 A GB 635038A GB 314848 A GB314848 A GB 314848A GB 314848 A GB314848 A GB 314848A GB 635038 A GB635038 A GB 635038A
Authority
GB
United Kingdom
Prior art keywords
heater
valve
cathode
relating
valves
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
GB314848A
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.)
FRANK HENRY POWELL
MO Valve Co Ltd
Original Assignee
FRANK HENRY POWELL
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 FRANK HENRY POWELL, MO Valve Co Ltd filed Critical FRANK HENRY POWELL
Priority to GB314848A priority Critical patent/GB635038A/en
Publication of GB635038A publication Critical patent/GB635038A/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
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

635,038. Thermionic valves. M-O VALVE CO., Ltd., and POWELL, F. H. Feb. 3, 1948, No. 3148. [Class 39(i)] The indirectly-heated cathode of a triodehexode or triode heptode valve is connected to one end of its heater inside the valve envelope so as to reduce the number of lead-in connections to the electrodes to seven. When used in a radio receiver circuit with the cathode heater connected in series with those of the other valves, the heater of the improved valve is located first in that series with the cathode connected to the negative end of the heater.
GB314848A 1948-02-03 1948-02-03 Improvements in or relating to thermionic valves Expired GB635038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB314848A GB635038A (en) 1948-02-03 1948-02-03 Improvements in or relating to thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB314848A GB635038A (en) 1948-02-03 1948-02-03 Improvements in or relating to thermionic valves

Publications (1)

Publication Number Publication Date
GB635038A true GB635038A (en) 1950-03-29

Family

ID=9752848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB314848A Expired GB635038A (en) 1948-02-03 1948-02-03 Improvements in or relating to thermionic valves

Country Status (1)

Country Link
GB (1) GB635038A (en)

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