GB190777A - Thermionic valves - Google Patents

Thermionic valves

Info

Publication number
GB190777A
GB190777A GB2507621A GB2507621A GB190777A GB 190777 A GB190777 A GB 190777A GB 2507621 A GB2507621 A GB 2507621A GB 2507621 A GB2507621 A GB 2507621A GB 190777 A GB190777 A GB 190777A
Authority
GB
United Kingdom
Prior art keywords
cathode
winding
grids
anode
anodes
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
GB2507621A
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.)
JOHN PAIN PRANGNELL
Original Assignee
JOHN PAIN PRANGNELL
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 JOHN PAIN PRANGNELL filed Critical JOHN PAIN PRANGNELL
Priority to GB2507621A priority Critical patent/GB190777A/en
Publication of GB190777A publication Critical patent/GB190777A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/20—Tubes with more than one discharge path; Multiple tubes, e.g. double diode, triode-hexode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/003—Tubes with plural electrode systems

Landscapes

  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

190,777. Prangnell, J. P. Sept. 21, 1921. Vacuum tubes.- A five electrode thermionic valve comprises a cathode 20,.Fig. 1, two anodes 10, 11 of approximately semi-cylindrical form, and two grids 23, 24 curved to enclose a cylindrical space, the electrodes being arranged coaxially. The grids may be in the form of helices, preferably coiled in opposite directions, or may consist of mesh cylinders. The electrodes are mounted on a glass foot, and leads to the anodes are taken through a cap 16 at the other end of the bulb to connectors 17, the cathode and grids being connected with plugs 27 in the lower cap 28. In the wireless receiving system shown in Fig. 4, the outer grid 23 is connected with the cathode 20 through the secondary winding of a transformer 35, the primary of which is connected in the anode-cathode circuit of an amplifying valve 31 connected with the aerial circuit 30. The inner grid 24 is connected with a potentiometer 36 through one winding 34 of a transformer, the other winding 38 of which is connected between the anode 10 and a high tension battery 33. The other anode 11 is connected through a telephone receiver 37 with the battery side of the winding 38.
GB2507621A 1921-09-21 1921-09-21 Thermionic valves Expired GB190777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2507621A GB190777A (en) 1921-09-21 1921-09-21 Thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2507621A GB190777A (en) 1921-09-21 1921-09-21 Thermionic valves

Publications (1)

Publication Number Publication Date
GB190777A true GB190777A (en) 1922-12-21

Family

ID=10221806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2507621A Expired GB190777A (en) 1921-09-21 1921-09-21 Thermionic valves

Country Status (1)

Country Link
GB (1) GB190777A (en)

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