BE450187A - - Google Patents

Info

Publication number: BE450187A
Authority: BE; Belgium

Application number

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.)

1942-04-16

Publication of BE450187A publication Critical patent/BE450187A/xx

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
- H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
- H03D7/10—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between different pairs of electrodes
- 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
- H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
- H03F1/28—Modifications of amplifiers to reduce influence of noise generated by amplifying elements in discharge-tube amplifiers

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Superheterodyne Receivers (AREA)

BE450187D 1942-04-16 BE450187A (enrdf_load_html_response)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NL245848X		1942-04-16
NL2486076X		1943-02-23

Publications (1)

Publication Number	Publication Date
BE450187A true BE450187A (enrdf_load_html_response)

Family

ID=32232797

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE450187D BE450187A (enrdf_load_html_response)	1942-04-16

Country Status (6)

Country	Link
US (1)	US2486076A (enrdf_load_html_response)
BE (1)	BE450187A (enrdf_load_html_response)
CH (1)	CH245848A (enrdf_load_html_response)
FR (2)	FR894004A (enrdf_load_html_response)
GB (1)	GB613681A (enrdf_load_html_response)
NL (1)	NL60694C (enrdf_load_html_response)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL70859C (enrdf_load_html_response) *	1947-08-14
BE484503A (enrdf_load_html_response) *	1947-08-25
US2662939A (en) *	1949-04-02	1953-12-15	Nowak Karl	High selectivity amplifier
US2659776A (en) *	1949-05-13	1953-11-17	Nowak Karl	Selective receiving and amplifying circuit
US2662172A (en) *	1950-02-21	1953-12-08	Sperry Prod Inc	Oscillator cancellation frequency converter
US2713118A (en) *	1951-05-04	1955-07-12	Robert W Hart	Communication system
US2963660A (en) *	1954-04-02	1960-12-06	Northrop Corp	Signal frequency converter
DE1081514B (de) *	1957-02-05	1960-05-12	Deutsche Bundespost	Breitbandverstaerkerstufe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB509398A (en) *	1937-12-14	1939-07-14	James Robinson	Improvements in retroactive valve apparatus
US2227604A (en) *	1938-01-29	1941-01-07	Rca Corp	Ultra high frequency device
US2256067A (en) *	1938-05-27	1941-09-16	Rca Corp	Receiver selectivity control

0
- BE BE450187D patent/BE450187A/xx unknown
- NL NL60694D patent/NL60694C/xx active
1943
- 1943-04-14 CH CH245848D patent/CH245848A/de unknown
- 1943-04-14 FR FR894004D patent/FR894004A/fr not_active Expired
1944
- 1944-02-21 FR FR53342D patent/FR53342E/fr not_active Expired
1946
- 1946-06-26 GB GB19079/46A patent/GB613681A/en not_active Expired
- 1946-09-18 US US697769A patent/US2486076A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
FR894004A (fr)	1944-12-12
GB613681A (en)	1948-12-01
FR53342E (fr)	1945-10-16
NL60694C (enrdf_load_html_response)
CH245848A (de)	1946-11-30
US2486076A (en)	1949-10-25

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