FR990550A - Devices for automatically replacing repeaters or other equipment - Google Patents

Devices for automatically replacing repeaters or other equipment

Info

Publication number
FR990550A
FR990550A FR990550DA FR990550A FR 990550 A FR990550 A FR 990550A FR 990550D A FR990550D A FR 990550DA FR 990550 A FR990550 A FR 990550A
Authority
FR
France
Prior art keywords
repeaters
equipment
devices
automatically replacing
replacing
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
Other languages
French (fr)
Inventor
Cyril Gordon Treadwell
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR990550A publication Critical patent/FR990550A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
    • H03F1/542—Replacing by standby devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
FR990550D 1948-07-13 1949-07-12 Devices for automatically replacing repeaters or other equipment Expired FR990550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB990550X 1948-07-13

Publications (1)

Publication Number Publication Date
FR990550A true FR990550A (en) 1951-09-24

Family

ID=10849345

Family Applications (1)

Application Number Title Priority Date Filing Date
FR990550D Expired FR990550A (en) 1948-07-13 1949-07-12 Devices for automatically replacing repeaters or other equipment

Country Status (1)

Country Link
FR (1) FR990550A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034716B (en) * 1952-02-09 1958-07-24 Iapatelholdiapatentverwertungs Device for functional testing of a frequency-modulated receiving system
US2891117A (en) * 1955-12-27 1959-06-16 American Telephone & Telegraph Wave translating system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034716B (en) * 1952-02-09 1958-07-24 Iapatelholdiapatentverwertungs Device for functional testing of a frequency-modulated receiving system
US2891117A (en) * 1955-12-27 1959-06-16 American Telephone & Telegraph Wave translating system

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