GB320876A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB320876A
GB320876A GB2133628A GB2133628A GB320876A GB 320876 A GB320876 A GB 320876A GB 2133628 A GB2133628 A GB 2133628A GB 2133628 A GB2133628 A GB 2133628A GB 320876 A GB320876 A GB 320876A
Authority
GB
United Kingdom
Prior art keywords
tube
anodes
cathode
surrounded
heated
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
GB2133628A
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
Priority to GB2133628A priority Critical patent/GB320876A/en
Publication of GB320876A publication Critical patent/GB320876A/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

Abstract

320,876. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). July 23, 1928. Vacuum tubes.-A rectifving discharge. tube consists of an indirectly-heated cathode surrounded by at least two cylindrical axially - spaced anodes. The cathode of a fullwave rectifier, Fig. 1, is surrounded by anodes 2, and consists of a seamless metal tube 3, coated with barium oxide 4 and having a narrow portion 5. A heater, in the form of a coiled tungsten wire 7, is enclosed in a quartz tube 6, and has its ends connected respectively to the portion 5 of the cathode and to a conducting support 10 through a metallio rod 8. The anodes may have cooling ribs and may be of a substance, e.g. zirconium, which. when heated, is capable of absorbing gases. The tube may be exhausted or contain a gas filling, e.g. a mixture of argon and mercury. Specification 295,343 is referred to.
GB2133628A 1928-07-23 1928-07-23 Improvements in or relating to electric discharge tubes Expired GB320876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2133628A GB320876A (en) 1928-07-23 1928-07-23 Improvements in or relating to electric discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2133628A GB320876A (en) 1928-07-23 1928-07-23 Improvements in or relating to electric discharge tubes

Publications (1)

Publication Number Publication Date
GB320876A true GB320876A (en) 1929-10-23

Family

ID=10161150

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2133628A Expired GB320876A (en) 1928-07-23 1928-07-23 Improvements in or relating to electric discharge tubes

Country Status (1)

Country Link
GB (1) GB320876A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE738989C (en) * 1933-10-31 1943-09-08 Opta Radio Ag Indirectly heated cathode for amplifier tubes made by the metal vapor process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE738989C (en) * 1933-10-31 1943-09-08 Opta Radio Ag Indirectly heated cathode for amplifier tubes made by the metal vapor process

Similar Documents

Publication Publication Date Title
GB845895A (en) A high output mercury vapour flourescent discharge lamp
US1859029A (en) Electric discharge tube
GB320876A (en) Improvements in or relating to electric discharge tubes
US2776390A (en) Radiation detector tube
GB329854A (en)
US1716545A (en) Geobqe m
GB446860A (en) Improvements in and relating to gaseous electric discharge devices
US1961814A (en) Electrical discharge device
GB300403A (en) Improvements relating to thermionic valves or electron discharge tubes
US1502907A (en) X-ray device
GB457740A (en) Improvements in electric discharge tubes
GB491176A (en) Improvements in high-pressure metal-vapour electric discharge devices
GB469631A (en) Improvements in gas or vapour-filled electric discharge tubes and in devices comprising such tubes
GB462451A (en) Improvements in electric discharge tubes
GB335573A (en) Improvements in thermionic cathodes of vacuum electric tube devices
GB314925A (en) Improvements in or relating to electric discharge tubes
GB404101A (en) Improvements in or relating to electric discharge tubes
US2056634A (en) Gaseous electric discharce tubular lamp
GB523622A (en) Improvements in or relating to thermionic cathodes
GB289975A (en) Improvements in or relating to electric vacuum or gas-filled tubes
GB447534A (en) Improvements in electric discharge tubes
GB301455A (en) Improvements in or relating to arc discharge tubes
GB313729A (en) Improvements in and relating to metallic vapour electrical discharge devices
GB244196A (en) Improvements in thermionic valves
GB716621A (en) Improvements in or relating to the manufacture of cold-cathode gas filled electric discharge devices