BE434401A - - Google Patents

Info

Publication number: BE434401A
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.)

1938-05-17

Publication of BE434401A publication Critical patent/BE434401A/xx

Classifications

- 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
- 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

Landscapes

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

BE434401D 1938-05-17 BE434401A (en, 2012)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL211391X		1938-05-17

Publications (1)

Publication Number	Publication Date
BE434401A true BE434401A (en, 2012)

Family

ID=19778842

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE434401D BE434401A (en, 2012)	1938-05-17

Country Status (6)

Country	Link
US (1)	US2200498A (en, 2012)
BE (1)	BE434401A (en, 2012)
CH (1)	CH211391A (en, 2012)
DE (1)	DE723507C (en, 2012)
FR (1)	FR854791A (en, 2012)
NL (1)	NL51550C (en, 2012)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2452340A (en) *	1941-01-29	1948-10-26	Hartford Nat Bank & Trust Co	Radio receiver circuit arrangement
US2511107A (en) *	1942-11-11	1950-06-13	Philip H Greeley	Radio receiving circuit
BE467883A (fr) *	1944-08-19	1947-03-12	Philips Nv	Dispositif pour accorder simultanément plusieurs circuits oscillants

0
- NL NL51550D patent/NL51550C/xx active
- BE BE434401D patent/BE434401A/xx unknown
1938
- 1938-12-16 US US246086A patent/US2200498A/en not_active Expired - Lifetime
1939
- 1939-05-15 CH CH211391D patent/CH211391A/de unknown
- 1939-05-16 FR FR854791D patent/FR854791A/fr not_active Expired
- 1939-05-16 DE DEN43250D patent/DE723507C/de not_active Expired

Also Published As

Publication number	Publication date
CH211391A (de)	1940-09-15
FR854791A (fr)	1940-04-24
US2200498A (en)	1940-05-14
DE723507C (de)	1942-08-06
NL51550C (en, 2012)

Publication	Publication Date	Title
FR871955A (en, 2012)	1942-05-27
SE96235C1 (en, 2012)	1939-07-11
BE428159A (en, 2012)
BE427315A (en, 2012)	1938-05-31
NL51550C (en, 2012)
BE427068A (en, 2012)
BE426985A (en, 2012)
BE426920A (en, 2012)	1938-04-30
BE426748A (en, 2012)
BE426736A (en, 2012)
BE426439A (en, 2012)
BE428127A (en, 2012)
BE423383A (en, 2012)
NL69053C (en, 2012)
NL59187C (en, 2012)
NL231533A (en, 2012)
BE427850A (en, 2012)	1938-05-31
BE432392A (en, 2012)
BE428654A (en, 2012)
BE428507A (en, 2012)	1938-07-30
BE428470A (en, 2012)
BE428437A (en, 2012)
BE428344A (en, 2012)
BE428170A (en, 2012)	1938-06-30
BE427269A (en, 2012)