FR838423A - Montage destiné au réglage automatique retardé du volume dans les appareils tels que les récepteurs de t. s. f. - Google Patents

Montage destiné au réglage automatique retardé du volume dans les appareils tels que les récepteurs de t. s. f.

Info

Publication number: FR838423A
Authority: FR; France
Prior art keywords: receivers; devices; volume adjustment; automatic volume; assembly intended
Prior art date: 1937-05-25
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

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.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

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.)

1937-05-25

Filing date

1938-05-25

Publication date

1939-03-06

1938-05-25 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1939-03-06 Application granted granted Critical

1939-03-06 Publication of FR838423A publication Critical patent/FR838423A/fr

Status Expired legal-status Critical Current

Classifications

- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H19/00—Model railways
- A63H19/30—Permanent way; Rails; Rail-joint connections
- A63H19/32—Switches or points; Operating means therefor
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/04—Modifications of control circuit to reduce distortion caused by control
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/22—Automatic control in amplifiers having discharge tubes

FR838423D 1937-05-25 1938-05-25 Montage destiné au réglage automatique retardé du volume dans les appareils tels que les récepteurs de t. s. f. Expired FR838423A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL1081070X		1937-05-25

Publications (1)

Publication Number	Publication Date
FR838423A true FR838423A (fr)	1939-03-06

Family

ID=19868576

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR838423D Expired FR838423A (fr)	1937-05-25	1938-05-25	Montage destiné au réglage automatique retardé du volume dans les appareils tels que les récepteurs de t. s. f.

Country Status (6)

Country	Link
US (1)	US2200049A (de)
CH (1)	CH205693A (de)
DE (1)	DE970538C (de)
DK (1)	DK59825C (de)
FR (1)	FR838423A (de)
GB (1)	GB505867A (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2521493A (en) *	1941-08-21	1950-09-05	Hartford Nat Bank & Trust Co	Circuit for delayed automatic amplification control
US2472218A (en) *	1944-02-05	1949-06-07	Rca Corp	Radio reception
US2520989A (en) *	1944-06-14	1950-09-05	Sperry Corp	Amplifier automatic gain control circuit
US2532347A (en) *	1944-07-26	1950-12-05	Edwin K Stodola	Radar receiver automatic gain control circuit
US2505074A (en) *	1947-03-15	1950-04-25	Rca Corp	Diversity receiver system
US2520012A (en) *	1948-01-08	1950-08-22	Philco Corp	Negative bias limiter for automatic gain control circuits
US2570715A (en) *	1948-03-20	1951-10-09	Rca Corp	Automatic gain control circuit
US2638538A (en) *	1949-05-27	1953-05-12	Rca Corp	Automatic gain control system
US2636939A (en) *	1949-06-30	1953-04-28	Avco Mfg Corp	Keyed automatic gain control
US2559038A (en) *	1949-08-01	1951-07-03	Avco Mfg Corp	Line pulse keyed automatic gain control circuit with control voltage delay
US2706220A (en) *	1949-08-30	1955-04-12	Motorola Inc	Delayed gated automatic gain control
US2703825A (en) *	1951-02-27	1955-03-08	Westinghouse Electric Corp	Electronic gain control device
AT391500B (de) *	1987-11-05	1990-10-10	Voest Alpine Ag	Umstellvorrichtung fuer bewegliche teile einer schienenweiche

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1537011A (en) *	1924-04-30	1925-05-05	Lionel Corp	Toy electric-railway construction
DE559310C (de) *	1930-05-07	1932-09-19	Maerklin & Cie G M B H Geb	Elektromagnetische Weiche fuer Spielzeugeisenbahnen
DE599678C (de) *	1933-09-14	1934-07-07	Gustav Sandtfoss	Vorrichtung zur selbsttaetigen Richtigstellung einer falsch gestellten Weiche bei elektrischen Spielzeug-Eisenbahnen
DE731115C (de) *	1939-12-17	1943-02-02	Ver Spielwaren Fabriken Andrea	Weiche fuer elektrische Spielzeugeisenbahnen

1938
- 1938-03-10 US US195009A patent/US2200049A/en not_active Expired - Lifetime
- 1938-05-21 DK DK59825D patent/DK59825C/da active
- 1938-05-23 DE DEP2097D patent/DE970538C/de not_active Expired
- 1938-05-23 GB GB15347/38A patent/GB505867A/en not_active Expired
- 1938-05-24 CH CH205693D patent/CH205693A/de unknown
- 1938-05-25 FR FR838423D patent/FR838423A/fr not_active Expired

Also Published As

Publication number	Publication date
US2200049A (en)	1940-05-07
DE1081070B (de)	1960-05-05
DK59825C (da)	1942-06-01
CH205693A (de)	1939-06-30
GB505867A (en)	1939-05-18
DE970538C (de)	1958-09-25

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