GB699751A - An electronic valve - Google Patents

An electronic valve

Info

Publication number
GB699751A
GB699751A GB3036750A GB3036750A GB699751A GB 699751 A GB699751 A GB 699751A GB 3036750 A GB3036750 A GB 3036750A GB 3036750 A GB3036750 A GB 3036750A GB 699751 A GB699751 A GB 699751A
Authority
GB
United Kingdom
Prior art keywords
electrodes
coated
anode
cathode
contact
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
GB3036750A
Inventor
Harold Jacobs
George Hees
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Priority to GB3036750A priority Critical patent/GB699751A/en
Publication of GB699751A publication Critical patent/GB699751A/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
    • H01J19/42—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

  • Measurement Of Radiation (AREA)

Abstract

699,751. Semi-conductor amplifiers. SYLVANIA ELECTRIC PRODUCTS. Inc. Dec. 12, 1950, No. 30367/50. Class 40 (iv). An electronic valve comprises a sealed envelope containing two electrodes coated with compounds of an alkali metal or an alkaline earth metal which are in contact with each other, and with at least one probe similarly coated and sandwiched between the electrodes. Nickel electrodes 10, 12, having coatings as described, are in contact with each other, and two coated tungsten wire probes 18 are provided between the electrode coatings. Oxides and a mixture of the carbonates of barium, strontium and calcium, with or without barium fluoride, are given as examples of coating material and these may be applied by spraying or cataphoresis. The electrodes may also have a first coating of copper. The assembly is enclosed in a valve-type envelope, and after exhaustion and gettering an ageing process at about 800‹ C. may be employed for the electrodes. The device may be used as an amplifier, in which electrodes 10, 12 and 18 are used as cathode, anode and grid respectively, or electrodes 10 and 12 may be connected together and used as a cathode, the two probe wires 18 being used as the grid and the anode.
GB3036750A 1950-12-12 1950-12-12 An electronic valve Expired GB699751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3036750A GB699751A (en) 1950-12-12 1950-12-12 An electronic valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3036750A GB699751A (en) 1950-12-12 1950-12-12 An electronic valve

Publications (1)

Publication Number Publication Date
GB699751A true GB699751A (en) 1953-11-18

Family

ID=10306545

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3036750A Expired GB699751A (en) 1950-12-12 1950-12-12 An electronic valve

Country Status (1)

Country Link
GB (1) GB699751A (en)

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