GB357774A - Improvements relating to electron discharge tubes - Google Patents

Improvements relating to electron discharge tubes

Info

Publication number
GB357774A
GB357774A GB28469/30A GB2846930A GB357774A GB 357774 A GB357774 A GB 357774A GB 28469/30 A GB28469/30 A GB 28469/30A GB 2846930 A GB2846930 A GB 2846930A GB 357774 A GB357774 A GB 357774A
Authority
GB
United Kingdom
Prior art keywords
screen
anode
flange
attached
improvements relating
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
GB28469/30A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB357774A publication Critical patent/GB357774A/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
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

357,774. Thermionic valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13A, Emmasingel, Eindhoven, Holland. Sept. 23, 1930, No. 28469. Convention date, March 4. [Class 39 (i).] A rectifying or other discharge tube having an incandescent cathode and an anode 1 shielded by a screen 5 is provided with an end or bottom wall 6 to the screen to shield the back of the anode. The wall 6 is provided with an aperture through which the insulated anode stem passes to which the screen may be attached by a flange 7. The screen may be cylindrical and the sides may merge gradually into the rear wall as shown in Fig. 2. An annular space 8 may be formed in the anode as shown in Fig. 1 and the screen may be attached to the anode stem by cement, friction, or by a clamping ring round the flange 7. The screen may be perforated and made of insulating material or metal gauze &c.
GB28469/30A 1930-03-04 1930-09-23 Improvements relating to electron discharge tubes Expired GB357774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL357774X 1930-03-04

Publications (1)

Publication Number Publication Date
GB357774A true GB357774A (en) 1931-10-01

Family

ID=19785290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28469/30A Expired GB357774A (en) 1930-03-04 1930-09-23 Improvements relating to electron discharge tubes

Country Status (2)

Country Link
FR (1) FR712097A (en)
GB (1) GB357774A (en)

Also Published As

Publication number Publication date
FR712097A (en) 1931-09-24

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