GB909917A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB909917A
GB909917A GB4206158A GB4206158A GB909917A GB 909917 A GB909917 A GB 909917A GB 4206158 A GB4206158 A GB 4206158A GB 4206158 A GB4206158 A GB 4206158A GB 909917 A GB909917 A GB 909917A
Authority
GB
United Kingdom
Prior art keywords
anode
grid
screens
dec
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
GB4206158A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB909917A publication Critical patent/GB909917A/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
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path

Landscapes

  • Lasers (AREA)

Abstract

909,917. Thermionic valves. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 30, 1958 [Dec. 31, 1957], No. 42061/58. Class 39 (1). In a discharge tube for amplifying electrical oscillations, the anode 4 includes two halves, each having a re-entrant part 3 facing, and having the same width as, the cathode 1. Screens 5, the free edges of which extend short of, and lie in the same plane as, the active anode parts, are provided between the grid 2 and anode 4 so that the anode to grid capacity is determined only by the active parts thereof. The screens 5 may be grounded or at a positive potential so that distribution noise may be negligible. As shown, the grid is a frame grid and the anode has extensions which act as cooling fins.
GB4206158A 1957-12-31 1958-12-30 Improvements in or relating to electric discharge tubes Expired GB909917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL223718 1957-12-31

Publications (1)

Publication Number Publication Date
GB909917A true GB909917A (en) 1962-11-07

Family

ID=19751083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4206158A Expired GB909917A (en) 1957-12-31 1958-12-30 Improvements in or relating to electric discharge tubes

Country Status (3)

Country Link
CH (1) CH365456A (en)
DK (1) DK103197C (en)
GB (1) GB909917A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE631240C (en) * 1936-06-16 Sueddeutsche Telefon App Kabel Three-electrode tube with a plate-shaped anode
DE595471C (en) * 1930-08-31 1934-04-11 Sueddeutsche Telefon App Kabel Three-electrode tube, consisting of a glow cathode, a grid surrounding it, an anode and a metallic cover comprising the electrodes mentioned
GB392815A (en) * 1931-10-15 1933-05-25 Kremenezky Ag Joh Improvements in or relating to electric discharge tubes

Also Published As

Publication number Publication date
CH365456A (en) 1962-11-15
DK103197C (en) 1965-11-29

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