FR1533843A - Method and apparatus for increasing and predicting longevity of filaments - Google Patents

Method and apparatus for increasing and predicting longevity of filaments

Info

Publication number
FR1533843A
FR1533843A FR117343A FR117343A FR1533843A FR 1533843 A FR1533843 A FR 1533843A FR 117343 A FR117343 A FR 117343A FR 117343 A FR117343 A FR 117343A FR 1533843 A FR1533843 A FR 1533843A
Authority
FR
France
Prior art keywords
filaments
increasing
longevity
predicting
predicting longevity
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
FR117343A
Other languages
French (fr)
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.)
Ampex Corp
Original Assignee
Ampex Corp
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 Ampex Corp filed Critical Ampex Corp
Application granted granted Critical
Publication of FR1533843A publication Critical patent/FR1533843A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/42—Measurement or testing during manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Measuring Fluid Pressure (AREA)
FR117343A 1966-08-19 1967-08-09 Method and apparatus for increasing and predicting longevity of filaments Expired FR1533843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57367066A 1966-08-19 1966-08-19

Publications (1)

Publication Number Publication Date
FR1533843A true FR1533843A (en) 1968-07-19

Family

ID=24292926

Family Applications (1)

Application Number Title Priority Date Filing Date
FR117343A Expired FR1533843A (en) 1966-08-19 1967-08-09 Method and apparatus for increasing and predicting longevity of filaments

Country Status (6)

Country Link
US (1) US3466534A (en)
BE (1) BE702661A (en)
DE (1) DE1589467B2 (en)
FR (1) FR1533843A (en)
GB (1) GB1203944A (en)
NL (1) NL6710707A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938034A (en) * 1974-05-06 1976-02-10 Reliable Electric Company Gas tube tester
DE2853677C2 (en) * 1978-12-13 1985-10-10 Leybold-Heraeus GmbH, 5000 Köln Circuit for an ionization vacuum meter
GB2580862B (en) * 2018-10-18 2023-04-26 Elekta ltd Method for use with a radiotherapy device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2082036A (en) * 1932-06-29 1937-06-01 Westinghouse Electric & Mfg Co Translating apparatus
US3005949A (en) * 1957-08-12 1961-10-24 Gen Electric Automatic testing circuit
US3040244A (en) * 1959-08-05 1962-06-19 Du Pont Thyratron anticipatory failure detection

Also Published As

Publication number Publication date
US3466534A (en) 1969-09-09
DE1589467A1 (en) 1970-05-14
NL6710707A (en) 1968-02-20
DE1589467B2 (en) 1972-03-30
BE702661A (en) 1968-01-15
GB1203944A (en) 1970-09-03

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