FR845822A - Superheterodyne for ultra short waves - Google Patents

Superheterodyne for ultra short waves

Info

Publication number
FR845822A
FR845822A FR845822DA FR845822A FR 845822 A FR845822 A FR 845822A FR 845822D A FR845822D A FR 845822DA FR 845822 A FR845822 A FR 845822A
Authority
FR
France
Prior art keywords
superheterodyne
ultra short
short waves
waves
ultra
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
Other languages
French (fr)
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR845822A publication Critical patent/FR845822A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/20—Transference of modulation from one carrier to another, e.g. frequency-changing by means of transit-time tubes
FR845822D 1937-11-11 1938-11-08 Superheterodyne for ultra short waves Expired FR845822A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2227078X 1937-11-11

Publications (1)

Publication Number Publication Date
FR845822A true FR845822A (en) 1939-09-04

Family

ID=7991173

Family Applications (1)

Application Number Title Priority Date Filing Date
FR845822D Expired FR845822A (en) 1937-11-11 1938-11-08 Superheterodyne for ultra short waves

Country Status (2)

Country Link
US (1) US2227078A (en)
FR (1) FR845822A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2465341A (en) * 1941-02-08 1949-03-29 Int Standard Electric Corp Electric wave transmission system
NL64724C (en) * 1941-07-30 1949-11-15
GB588917A (en) * 1941-12-17 1947-06-06 Charles Seymour Wright Improvements in and relating to high frequency electrical oscillators
US2446118A (en) * 1943-05-17 1948-07-27 Pye Ltd Detector or frequency changer for radio-frequency oscillations
US2543739A (en) * 1946-02-12 1951-02-27 Gen Railway Signal Co Electron discharge device
BE521710A (en) * 1952-07-25

Also Published As

Publication number Publication date
US2227078A (en) 1940-12-31

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