JPS5566820A - Heater type cathode - Google Patents

Heater type cathode

Info

Publication number
JPS5566820A
JPS5566820A JP14065278A JP14065278A JPS5566820A JP S5566820 A JPS5566820 A JP S5566820A JP 14065278 A JP14065278 A JP 14065278A JP 14065278 A JP14065278 A JP 14065278A JP S5566820 A JPS5566820 A JP S5566820A
Authority
JP
Japan
Prior art keywords
cathode
type cathode
heaters
heater type
heater
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
JP14065278A
Other languages
Japanese (ja)
Inventor
Tatsuo Onozawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP14065278A priority Critical patent/JPS5566820A/en
Publication of JPS5566820A publication Critical patent/JPS5566820A/en
Pending legal-status Critical Current

Links

Landscapes

  • Solid Thermionic Cathode (AREA)

Abstract

PURPOSE: To prevent a number of heaters from being disconnected and being deformed by mounting them on a heater type cathode.
CONSTITUTION: Both the inside cathode tube 11 and the inside cathode tube are fixed to the impregnation type cathode 10 by waxing. The first and second alumina coated tungsten heaters 13 and 14 are mounted on them and are connected to the heating power supply 16 through the changeover switch 15. They 13 and 14 are designed to heat the impregnation type cathode 10 up to the preset temperature, respectively. This sharply lowers heater temperature by turning on a number of heaters 13 and 14 while the cathode is being activated.
COPYRIGHT: (C)1980,JPO&Japio
JP14065278A 1978-11-15 1978-11-15 Heater type cathode Pending JPS5566820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14065278A JPS5566820A (en) 1978-11-15 1978-11-15 Heater type cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14065278A JPS5566820A (en) 1978-11-15 1978-11-15 Heater type cathode

Publications (1)

Publication Number Publication Date
JPS5566820A true JPS5566820A (en) 1980-05-20

Family

ID=15273622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14065278A Pending JPS5566820A (en) 1978-11-15 1978-11-15 Heater type cathode

Country Status (1)

Country Link
JP (1) JPS5566820A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4211922Y1 (en) * 1966-01-11 1967-07-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4211922Y1 (en) * 1966-01-11 1967-07-05

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