GB535785A - Arrangements for protecting thermionic valve apparatus against lightning discharge or overload - Google Patents

Arrangements for protecting thermionic valve apparatus against lightning discharge or overload

Info

Publication number
GB535785A
GB535785A GB2833439A GB2833439A GB535785A GB 535785 A GB535785 A GB 535785A GB 2833439 A GB2833439 A GB 2833439A GB 2833439 A GB2833439 A GB 2833439A GB 535785 A GB535785 A GB 535785A
Authority
GB
United Kingdom
Prior art keywords
valve
arc
overload
arrangements
protecting
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
GB2833439A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 BE468742D priority Critical patent/BE468742A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2833439A priority patent/GB535785A/en
Priority to FR867357D priority patent/FR867357A/en
Publication of GB535785A publication Critical patent/GB535785A/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
    • 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
    • H03F1/548—Protection of anode or grid circuit against overload

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

535,785. Valve circuits. STANDARD TELEPHONES & CABLES, Ltd., and MADDOCK, A. J. Oct. 20, 1939, No. 28334. [Class 40 (v)] A valve V or chain of valves supplying a conductor T, e.g. an aerial, is prevented from supplying energy to an arc or flash-over, e.g. at a gap G, by causing the arc to complete the circuit of a negative bias B2 to a control electrode of the valve. As soon as the arc ceases, the negative bias is disconnected. A filter L1, L2, C prevents oscillatory energy in the conductor T being fed back to the valve. The arrangement may be adapted to several aerials fed from the same valve chain, and also to a single aerial fed from parallel valve chains.
GB2833439A 1939-10-20 1939-10-20 Arrangements for protecting thermionic valve apparatus against lightning discharge or overload Expired GB535785A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE468742D BE468742A (en) 1939-10-20
GB2833439A GB535785A (en) 1939-10-20 1939-10-20 Arrangements for protecting thermionic valve apparatus against lightning discharge or overload
FR867357D FR867357A (en) 1939-10-20 1940-10-02 Protection systems for electrical appliances, including thermionic lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2833439A GB535785A (en) 1939-10-20 1939-10-20 Arrangements for protecting thermionic valve apparatus against lightning discharge or overload

Publications (1)

Publication Number Publication Date
GB535785A true GB535785A (en) 1941-04-22

Family

ID=10274020

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2833439A Expired GB535785A (en) 1939-10-20 1939-10-20 Arrangements for protecting thermionic valve apparatus against lightning discharge or overload

Country Status (3)

Country Link
BE (1) BE468742A (en)
FR (1) FR867357A (en)
GB (1) GB535785A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550964B1 (en) * 1983-08-30 1987-03-20 Megel Auguste HOT AEROSOL GENERATORS

Also Published As

Publication number Publication date
FR867357A (en) 1941-10-20
BE468742A (en)

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