BE454669A - - Google Patents

Info

Publication number: BE454669A
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.)

1943-03-05

Publication of BE454669A publication Critical patent/BE454669A/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
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/46—Reflex amplifiers
- H03F3/48—Reflex amplifiers with tubes only
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/02—Manually-operated control
- H03G3/04—Manually-operated control in untuned amplifiers
- H03G3/06—Manually-operated control in untuned amplifiers having discharge tubes
- H03G3/08—Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/02—Manually-operated control
- H03G5/04—Manually-operated control in untuned amplifiers
- H03G5/06—Manually-operated control in untuned amplifiers having discharge tubes
- H03G5/08—Manually-operated control in untuned amplifiers having discharge tubes incorporating negative feedback
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/04—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes
- H03G9/06—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for gain control and tone control
- H03G9/08—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for gain control and tone control incorporating negative feedback

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Superheterodyne Receivers (AREA)
Circuits Of Receivers In General (AREA)

BE454669D 1943-03-05 BE454669A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL624010X		1943-03-05

Publications (1)

Publication Number	Publication Date
BE454669A true BE454669A (enrdf_load_stackoverflow)

Family

ID=19788516

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE454669D BE454669A (enrdf_load_stackoverflow)	1943-03-05

Country Status (4)

Country	Link
US (1)	US2503787A (enrdf_load_stackoverflow)
BE (1)	BE454669A (enrdf_load_stackoverflow)
FR (1)	FR902400A (enrdf_load_stackoverflow)
GB (1)	GB624010A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB682140A (en) *	1950-09-27	1952-11-05	Amalgamated Wireless Australas	Improvements in volume control arrangements for radio receivers
US2848615A (en) *	1956-05-21	1958-08-19	Philco Corp	Frequency control system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL33318C (enrdf_load_stackoverflow) *	1928-09-19	1900-01-01
US2159453A (en) *	1929-06-13	1939-05-23	King Mfg Corp	Dual action volume control
US1988370A (en) *	1929-12-06	1935-01-15	Philadelphia Storage Battery	Automatic volume control
GB396822A (en) *	1932-02-18	1933-08-17	Gen Electric Co Ltd	Improvements in electric wave signalling apparatus
US2115842A (en) *	1933-04-18	1938-05-03	Emi Ltd	Volume control arrangement
US2205243A (en) *	1938-12-15	1940-06-18	Gen Electric	Amplifier

0
- BE BE454669D patent/BE454669A/xx unknown
1944
- 1944-03-03 FR FR902400D patent/FR902400A/fr not_active Expired
1946
- 1946-09-06 GB GB26869/46A patent/GB624010A/en not_active Expired
1947
- 1947-07-30 US US764754A patent/US2503787A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
FR902400A (fr)	1945-08-29
GB624010A (en)	1949-05-26
US2503787A (en)	1950-04-11

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