GB368272A - Improvements in and relating to electric negative resistances - Google Patents

Improvements in and relating to electric negative resistances

Info

Publication number
GB368272A
GB368272A GB2575430A GB2575430A GB368272A GB 368272 A GB368272 A GB 368272A GB 2575430 A GB2575430 A GB 2575430A GB 2575430 A GB2575430 A GB 2575430A GB 368272 A GB368272 A GB 368272A
Authority
GB
United Kingdom
Prior art keywords
oxide
generating
resistance
relating
amplifying
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
GB2575430A
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
Priority claimed from DEH122953D external-priority patent/DE608853C/en
Priority claimed from DEH124333D external-priority patent/DE615366C/en
Application filed by Individual filed Critical Individual
Publication of GB368272A publication Critical patent/GB368272A/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
    • H01C7/04—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
    • H01C7/042—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 mainly consisting of inorganic non-metallic substances
    • H01C7/043—Oxides or oxidic compounds
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/62—Two-way amplifiers

Abstract

368,272. Generating and amplifying oscillations. HABANN, E., 44, Stargarderstrasse, Berlin. Aug. 28, 1930, No. 25754. Convention date, July 10. Addition to 367,790 and 368,270. [Class 40 (v).] In a resistance as claimed in the parent Specification and applicable for generating and amplifying electric oscillations, the contact substance comprises one or more of the compounds, titanic anhydride, manganese oxide, chromium oxide, iron oxide, tungstic acid, or tin dioxide. Preferably two or more of these oxides are mixed with zinc oxide. A small quantity (2 to 10 per cent or less) of cuprous oxide, uranium oxide, or vanadic anhydride may be added as a catalyst, as claimed in Specification 368,770. The resistance may be cooled to the temperature of -120‹ C. or lower. The cross-section should be larger than usual, as the current density is not uniform.
GB2575430A 1929-08-16 1930-08-28 Improvements in and relating to electric negative resistances Expired GB368272A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEH122953D DE608853C (en) 1929-08-16 1929-08-16 Negative resistance
DEH124333D DE615366C (en) 1929-08-16 1929-11-23 Negative resistance
DE621983T 1930-07-10

Publications (1)

Publication Number Publication Date
GB368272A true GB368272A (en) 1932-02-29

Family

ID=32397390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2575430A Expired GB368272A (en) 1929-08-16 1930-08-28 Improvements in and relating to electric negative resistances

Country Status (2)

Country Link
DE (1) DE621983C (en)
GB (1) GB368272A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467144A (en) * 1944-11-22 1949-04-12 Corning Glass Works Electrically conducting refractory body
US2700720A (en) * 1948-12-15 1955-01-25 Julius J Torok Thermistor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467144A (en) * 1944-11-22 1949-04-12 Corning Glass Works Electrically conducting refractory body
US2700720A (en) * 1948-12-15 1955-01-25 Julius J Torok Thermistor

Also Published As

Publication number Publication date
DE621983C (en) 1936-02-04

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