GB514614A - Improvements relating to electrical networks containing variable resistances - Google Patents

Improvements relating to electrical networks containing variable resistances

Info

Publication number
GB514614A
GB514614A GB3836/38A GB383638A GB514614A GB 514614 A GB514614 A GB 514614A GB 3836/38 A GB3836/38 A GB 3836/38A GB 383638 A GB383638 A GB 383638A GB 514614 A GB514614 A GB 514614A
Authority
GB
United Kingdom
Prior art keywords
line
variable resistances
improvements relating
feb
resistances
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
GB3836/38A
Other languages
English (en)
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.)
AEG AG
Original Assignee
Allgemeine Elektricitaets Gesellschaft
AEG AG
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 Allgemeine Elektricitaets Gesellschaft, AEG AG filed Critical Allgemeine Elektricitaets Gesellschaft
Publication of GB514614A publication Critical patent/GB514614A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0041—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using thermistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/24—Frequency- independent attenuators
    • H03H7/25—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable
    • H03H7/251—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable the element being a thermistor

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Temperature (AREA)
  • Thermistors And Varistors (AREA)
GB3836/38A 1937-02-06 1938-02-07 Improvements relating to electrical networks containing variable resistances Expired GB514614A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE833355X 1937-02-06

Publications (1)

Publication Number Publication Date
GB514614A true GB514614A (en) 1939-11-13

Family

ID=6759143

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3836/38A Expired GB514614A (en) 1937-02-06 1938-02-07 Improvements relating to electrical networks containing variable resistances

Country Status (4)

Country Link
AT (1) AT156762B (cs)
BE (1) BE426240A (cs)
FR (1) FR833355A (cs)
GB (1) GB514614A (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811695A (en) * 1954-10-18 1957-10-29 Bell Telephone Labor Inc Automatic level control
US3522453A (en) * 1966-07-15 1970-08-04 Jerrold Electronics Corp Variable attenuators

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811695A (en) * 1954-10-18 1957-10-29 Bell Telephone Labor Inc Automatic level control
US3522453A (en) * 1966-07-15 1970-08-04 Jerrold Electronics Corp Variable attenuators

Also Published As

Publication number Publication date
BE426240A (cs) 1938-03-31
AT156762B (de) 1939-08-25
FR833355A (fr) 1938-10-20

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