JPS5469952A - Indirectly-heated cathode heater - Google Patents

Indirectly-heated cathode heater

Info

Publication number
JPS5469952A
JPS5469952A JP13696077A JP13696077A JPS5469952A JP S5469952 A JPS5469952 A JP S5469952A JP 13696077 A JP13696077 A JP 13696077A JP 13696077 A JP13696077 A JP 13696077A JP S5469952 A JPS5469952 A JP S5469952A
Authority
JP
Japan
Prior art keywords
support bodies
main body
heater
wound
indirectly
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.)
Pending
Application number
JP13696077A
Other languages
Japanese (ja)
Inventor
Yukimitsu Osagawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP13696077A priority Critical patent/JPS5469952A/en
Publication of JPS5469952A publication Critical patent/JPS5469952A/en
Pending legal-status Critical Current

Links

Landscapes

  • Solid Thermionic Cathode (AREA)

Abstract

PURPOSE: To reduce the number of manufacture processes with no dispersion in cold resistance of a heater, by forming a heater main body and its support body through the 1st coiling.
CONSTITUTION: One filament is wound continuously around the coil to form heater 7 and support bodies 8 and 9; support bodies are wound thick in terms of coil pitch and main body 7 is wound more roughly than support bodies 8 and 9 in a double helical shape. Further, although support bodies 8 and 9 are provided with core metals of molybdenum, main body 7 needs nothing. Then, the entire main body 7 and some parts of support bodies 8 and 9 are coated with alumina 11.
COPYRIGHT: (C)1979,JPO&Japio
JP13696077A 1977-11-15 1977-11-15 Indirectly-heated cathode heater Pending JPS5469952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13696077A JPS5469952A (en) 1977-11-15 1977-11-15 Indirectly-heated cathode heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13696077A JPS5469952A (en) 1977-11-15 1977-11-15 Indirectly-heated cathode heater

Publications (1)

Publication Number Publication Date
JPS5469952A true JPS5469952A (en) 1979-06-05

Family

ID=15187510

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13696077A Pending JPS5469952A (en) 1977-11-15 1977-11-15 Indirectly-heated cathode heater

Country Status (1)

Country Link
JP (1) JPS5469952A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61188240U (en) * 1985-05-14 1986-11-22
FR2591798A1 (en) * 1985-12-17 1987-06-19 Videocolor LOW CONSUMPTION ELECTRON GUN FOR CATHODE RAY TUBE
JPS62222533A (en) * 1986-03-25 1987-09-30 Hitachi Ltd Indirectly-heated cathode heater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61188240U (en) * 1985-05-14 1986-11-22
FR2591798A1 (en) * 1985-12-17 1987-06-19 Videocolor LOW CONSUMPTION ELECTRON GUN FOR CATHODE RAY TUBE
US4825119A (en) * 1985-12-17 1989-04-25 Videocolor Low consumption electron gun for cathode ray tubes
JPS62222533A (en) * 1986-03-25 1987-09-30 Hitachi Ltd Indirectly-heated cathode heater

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