GB321037A - Improvements relating to thermionic valves or vacuum electric devices - Google Patents

Improvements relating to thermionic valves or vacuum electric devices

Info

Publication number
GB321037A
GB321037A GB2844928A GB2844928A GB321037A GB 321037 A GB321037 A GB 321037A GB 2844928 A GB2844928 A GB 2844928A GB 2844928 A GB2844928 A GB 2844928A GB 321037 A GB321037 A GB 321037A
Authority
GB
United Kingdom
Prior art keywords
ribbon
strip
thermionic valves
electric devices
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
GB2844928A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2844928A priority Critical patent/GB321037A/en
Publication of GB321037A publication Critical patent/GB321037A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements

Landscapes

  • Measuring Fluid Pressure (AREA)

Abstract

321,037. Holt, W. Oct. 4, 1928. Vacuum tubes. - In filaments of thermionic valves &c. which are formed from flat ribbon or strip, microphonic noises due to the vibration of the filament are prevented by giving the ribbon. a partial twist, or a number of turns, so that it assumes a helical form. The strip is passed axially through the grid, attached at the lower end to the lead-in wire, twisted through two complete turns and its upper end welded to the usual spring arm or support. In place of a flat strip, a ribbon of any non-circular cross section having unequal axes may be employed.
GB2844928A 1928-10-04 1928-10-04 Improvements relating to thermionic valves or vacuum electric devices Expired GB321037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2844928A GB321037A (en) 1928-10-04 1928-10-04 Improvements relating to thermionic valves or vacuum electric devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2844928A GB321037A (en) 1928-10-04 1928-10-04 Improvements relating to thermionic valves or vacuum electric devices

Publications (1)

Publication Number Publication Date
GB321037A true GB321037A (en) 1929-10-31

Family

ID=10275789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2844928A Expired GB321037A (en) 1928-10-04 1928-10-04 Improvements relating to thermionic valves or vacuum electric devices

Country Status (1)

Country Link
GB (1) GB321037A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107941416A (en) * 2017-12-29 2018-04-20 李涛 Detect the connection terminal of vacuum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107941416A (en) * 2017-12-29 2018-04-20 李涛 Detect the connection terminal of vacuum

Similar Documents

Publication Publication Date Title
ES174077U (en) Sustaining device of horizontally tensioned wires. (Machine-translation by Google Translate, not legally binding)
GB321037A (en) Improvements relating to thermionic valves or vacuum electric devices
GB270169A (en) Improvements in coiled springs
US2298929A (en) Electron discharge device
US1998958A (en) Connection for filament and lead wires
GB318933A (en)
GB209051A (en) Improvements in or relating to gas-filled electric glowlamps with helically wound filaments
GB1236187A (en) Filament lamp
GB225038A (en) Improvements in incandescent electric lamps
GB332071A (en) Improvements in thermionic valves
GB175025A (en) Improvements in and relating to incandescent electric lamps
GB205512A (en) Improvements in vacuum tubes of the "audion" type
GB307058A (en)
GB220747A (en) Improvements in electric tube devices having coiled filaments
SU13031A1 (en) Electric filament lamp with several threads
GB253668A (en) Improved method of and means for mounting filaments in thermionic valves and the like
GB477787A (en) Electric discharge tube
GB196308A (en) Improvements in and relating to the suspension of incandescent filaments in thermionic valves and the like
GB193525A (en) Improvements in or relating to thermionic valves and the like
GB237002A (en) Improvements in wireless valves
GB191023332A (en) Improvements in or relating to the Manufacture of Incandescent Electric Lamps.
GB228638A (en) Improvements in vacuum electric tube devices
GB241439A (en) Grid electrodes for electron discharge tubes
GB260615A (en)
GB204237A (en) Improvements in and relating to means for supporting filaments or filament leads in thermionic tubes or valves