GB360920A - Improvements in or relating to electric negative resistances - Google Patents

Improvements in or relating to electric negative resistances

Info

Publication number
GB360920A
GB360920A GB2426130A GB2426130A GB360920A GB 360920 A GB360920 A GB 360920A GB 2426130 A GB2426130 A GB 2426130A GB 2426130 A GB2426130 A GB 2426130A GB 360920 A GB360920 A GB 360920A
Authority
GB
United Kingdom
Prior art keywords
contact
sulphide
substance
sulphides
aug
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
GB2426130A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB360920A publication Critical patent/GB360920A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01C7/10—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 voltage responsive, i.e. varistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H01C1/1413—Terminals or electrodes formed on resistive elements having negative temperature coefficient

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
  • Conductive Materials (AREA)
  • Contacts (AREA)

Abstract

360,920. Wireless receiving apparatus. HABANN, E., 44, Stargarderstrasse, Berlin. Aug. 13, 1930, No. 24261. Convention date, Aug. 15, 1929. [Class 40 (v).] A negative resistance comprising a contact substance and a loose point contact therewith utilizes as a contact substance a mixture of electrically conducting compounds of the same chemical nature which are not decomposed by the passage of current. The substance preferably comprises a mixture of lead sulphide and cuprous sulphide or sulphide of silver, copper, bismuth, cadmium, mercury, or zinc or arsenic trisulphide in the proportion of 1 mol. of lead sulphide to À5-À025 mols. of the other sulphides. Alternatively oxides may be used instead of sulphides. The constituents are preferably reduced to very fine powder, intimately mixed and pressed into a coherent mass, but may be sintered or fused together. The contact wire is preferably of molybdenum or iron of .2 millimetres diameter. The contact point may be immersed in oil or benzol and may be surrounded by a medium at a pressure greater than atmospheric.
GB2426130A 1929-08-16 1930-08-13 Improvements in or relating to electric negative resistances Expired GB360920A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH122953D DE608853C (en) 1929-08-16 1929-08-16 Negative resistance

Publications (1)

Publication Number Publication Date
GB360920A true GB360920A (en) 1931-11-13

Family

ID=7174244

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2426130A Expired GB360920A (en) 1929-08-16 1930-08-13 Improvements in or relating to electric negative resistances
GB2426230A Expired GB367790A (en) 1929-08-16 1930-08-13 Improvements in or relating to electric negative resistances

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2426230A Expired GB367790A (en) 1929-08-16 1930-08-13 Improvements in or relating to electric negative resistances

Country Status (2)

Country Link
DE (1) DE608853C (en)
GB (2) GB360920A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609470A (en) * 1949-07-22 1952-09-02 Gen Electric Resistance materials and elements

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE939099C (en) * 1946-09-06 1956-02-16 Eberhard Meyer-Hartwig Process for the production of electrical semiconductors from sintered powders
DE1143259B (en) * 1953-08-13 1963-02-07 Siemens Ag Electrical semiconductor resistance independent of the outside temperature

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609470A (en) * 1949-07-22 1952-09-02 Gen Electric Resistance materials and elements

Also Published As

Publication number Publication date
GB367790A (en) 1932-02-15
DE608853C (en) 1936-01-28

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