GB890945A - Improvements in and relating to electric impedances of variable value - Google Patents

Improvements in and relating to electric impedances of variable value

Info

Publication number
GB890945A
GB890945A GB23755/57A GB2375557A GB890945A GB 890945 A GB890945 A GB 890945A GB 23755/57 A GB23755/57 A GB 23755/57A GB 2375557 A GB2375557 A GB 2375557A GB 890945 A GB890945 A GB 890945A
Authority
GB
United Kingdom
Prior art keywords
unit
switches
value
capacitance
terminals
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
GB23755/57A
Other languages
English (en)
Inventor
Lister Hallas
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.)
Telephone Cables Ltd
Original Assignee
Telephone Cables 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
Priority to BE569734D priority Critical patent/BE569734A/xx
Priority to NL229937D priority patent/NL229937A/xx
Application filed by Telephone Cables Ltd filed Critical Telephone Cables Ltd
Priority to GB23755/57A priority patent/GB890945A/en
Priority to US750197A priority patent/US3036263A/en
Priority to FR1209307D priority patent/FR1209307A/fr
Priority to DES59156A priority patent/DE1131923B/de
Priority to DK274758AA priority patent/DK108458C/da
Priority to CH6227358A priority patent/CH366330A/de
Publication of GB890945A publication Critical patent/GB890945A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
    • G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/06—Adjustable resistors adjustable by short-circuiting different amounts of the resistive element
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H5/00—One-port networks comprising only passive electrical elements as network components
    • H03H5/02—One-port networks comprising only passive electrical elements as network components without voltage- or current-dependent elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Relay Circuits (AREA)
  • Ac-Ac Conversion (AREA)
GB23755/57A 1957-07-26 1957-07-26 Improvements in and relating to electric impedances of variable value Expired GB890945A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE569734D BE569734A (enrdf_load_stackoverflow) 1957-07-26
NL229937D NL229937A (enrdf_load_stackoverflow) 1957-07-26
GB23755/57A GB890945A (en) 1957-07-26 1957-07-26 Improvements in and relating to electric impedances of variable value
US750197A US3036263A (en) 1957-07-26 1958-07-22 Electric impedances of variable value
FR1209307D FR1209307A (fr) 1957-07-26 1958-07-25 Perfectionnements à des impédances électriques de valeur variable
DES59156A DE1131923B (de) 1957-07-26 1958-07-25 Schaltungsanordnung fuer elektrische Impedanzen mit veraenderlichen Impedanzwerten, z. B. fuer die Verwendung in Brueckennetz-werken
DK274758AA DK108458C (da) 1957-07-26 1958-07-26 Regulerbart impedansnetværk.
CH6227358A CH366330A (de) 1957-07-26 1958-07-26 Variable Impedanz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23755/57A GB890945A (en) 1957-07-26 1957-07-26 Improvements in and relating to electric impedances of variable value

Publications (1)

Publication Number Publication Date
GB890945A true GB890945A (en) 1962-03-07

Family

ID=10200792

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23755/57A Expired GB890945A (en) 1957-07-26 1957-07-26 Improvements in and relating to electric impedances of variable value

Country Status (8)

Country Link
US (1) US3036263A (enrdf_load_stackoverflow)
BE (1) BE569734A (enrdf_load_stackoverflow)
CH (1) CH366330A (enrdf_load_stackoverflow)
DE (1) DE1131923B (enrdf_load_stackoverflow)
DK (1) DK108458C (enrdf_load_stackoverflow)
FR (1) FR1209307A (enrdf_load_stackoverflow)
GB (1) GB890945A (enrdf_load_stackoverflow)
NL (1) NL229937A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274484A (en) * 1964-05-05 1966-09-20 Lory Power control network
FR2504273A1 (fr) * 1981-04-21 1982-10-22 Europ Composants Electron Commutateur de mesure electrique d'impedances reactives et pont de mesure utilisant un tel commutateur
US4903162A (en) * 1988-07-25 1990-02-20 Kopelman Robert L Fire-prevention electrical wiring device
US4952864A (en) * 1988-10-18 1990-08-28 Ventritex Power supply down-conversion, regulation and low battery detection system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1350279A (en) * 1918-02-07 1920-08-17 Western Union Telegraph Co Adjustable condenser
US1422549A (en) * 1918-08-14 1922-07-11 Western Electric Co Multiple switch
US2762038A (en) * 1952-06-11 1956-09-04 Underwood Corp Voltage measuring device
US2752093A (en) * 1952-07-18 1956-06-26 Teleregister Corp Indicator device and analogue computer circuit

Also Published As

Publication number Publication date
NL229937A (enrdf_load_stackoverflow) 1900-01-01
DK108458C (da) 1967-12-18
US3036263A (en) 1962-05-22
DE1131923B (de) 1962-06-20
CH366330A (de) 1962-12-31
FR1209307A (fr) 1960-03-01
BE569734A (enrdf_load_stackoverflow) 1900-01-01

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