GB439048A - Improvements in or relating to electron emitting cathodes - Google Patents

Improvements in or relating to electron emitting cathodes

Info

Publication number
GB439048A
GB439048A GB1588034A GB1588034A GB439048A GB 439048 A GB439048 A GB 439048A GB 1588034 A GB1588034 A GB 1588034A GB 1588034 A GB1588034 A GB 1588034A GB 439048 A GB439048 A GB 439048A
Authority
GB
United Kingdom
Prior art keywords
tube
external diameter
small compared
emissive material
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
GB1588034A
Other languages
English (en)
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co 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
Priority to BE408804D priority Critical patent/BE408804A/xx
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB1588034A priority patent/GB439048A/en
Priority to DEM131135D priority patent/DE685680C/de
Publication of GB439048A publication Critical patent/GB439048A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/485—Construction of the gun or of parts thereof

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
GB1588034A 1934-05-28 1934-05-28 Improvements in or relating to electron emitting cathodes Expired GB439048A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE408804D BE408804A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1934-05-28
GB1588034A GB439048A (en) 1934-05-28 1934-05-28 Improvements in or relating to electron emitting cathodes
DEM131135D DE685680C (de) 1934-05-28 1935-05-29 Indirekt geheizte Punktkathode fuer Kathodenstrahlroehren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1588034A GB439048A (en) 1934-05-28 1934-05-28 Improvements in or relating to electron emitting cathodes

Publications (1)

Publication Number Publication Date
GB439048A true GB439048A (en) 1935-11-28

Family

ID=10067183

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1588034A Expired GB439048A (en) 1934-05-28 1934-05-28 Improvements in or relating to electron emitting cathodes

Country Status (3)

Country Link
BE (1) BE408804A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE685680C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB439048A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE759555C (de) * 1939-11-17 1953-02-09 Siemens & Halske A G Elektronenstrahloszillograph

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE759555C (de) * 1939-11-17 1953-02-09 Siemens & Halske A G Elektronenstrahloszillograph

Also Published As

Publication number Publication date
BE408804A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE685680C (de) 1939-12-22

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