FR2457600A1 - IMPROVEMENT RELATING TO PRESET TUNING SYSTEMS, ESPECIALLY FOR RADIO RECEIVERS - Google Patents
IMPROVEMENT RELATING TO PRESET TUNING SYSTEMS, ESPECIALLY FOR RADIO RECEIVERSInfo
- Publication number
- FR2457600A1 FR2457600A1 FR8011324A FR8011324A FR2457600A1 FR 2457600 A1 FR2457600 A1 FR 2457600A1 FR 8011324 A FR8011324 A FR 8011324A FR 8011324 A FR8011324 A FR 8011324A FR 2457600 A1 FR2457600 A1 FR 2457600A1
- Authority
- FR
- France
- Prior art keywords
- radio receivers
- tuning systems
- preset tuning
- improvement relating
- potentiometer
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/06—Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control
- H03J1/066—Constructional details regarding potentiometric setting of voltage or current variable reactances
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Structure Of Receivers (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Toys (AREA)
- Transmitters (AREA)
- Mechanical Control Devices (AREA)
Abstract
CE SYSTEME D'ACCORD A PRESELECTION, EN PARTICULIER POUR RECEPTEURS DE RADIO, COMPREND UN ORGANE EN FORME DE TAMBOUR 4 SUR LEQUEL SONT MONTES PLUSIEURS ELEMENTS D'ACCORD DU TYPE POTENTIOMETRE; UN DISPOSITIF POUR FAIRE TOURNER PAS A PAS CE TAMBOUR, DE MANIERE A METTRE EN CIRCUIT A TOUR DE ROLE LES ELEMENTS D'ACCORD DU TYPE POTENTIOMETRE EN ACTIONNANT UN ORGANE DE COMMANDE; ET DES MOYENS POUR LE PRE-REGLAGE DES ELEMENTS D'ACCORD DU TYPE POTENTIOMETRE, EN VUE DE L'ACCORD SUR UNE STATION EMETTRICE VOULUE POUR CHACUN D'ENTRE EUX.THIS PRESET TUNING SYSTEM, PARTICULARLY FOR RADIO RECEIVERS, INCLUDES A DRUM-SHAPED MEMBER 4 ON WHICH SEVERAL POTENTIOMETER-TYPE TUNING ELEMENTS ARE MOUNTED; A DEVICE FOR ROTATING THIS DRUM STEP BY STEP, IN A WAY TO CIRCUIT IN A ROTARY CIRCUIT THE POTENTIOMETER-TYPE TUNING ELEMENTS BY ACTUATING A CONTROL MEMBER; AND MEANS FOR THE PRESETTING OF THE POTENTIOMETER-TYPE TUNING ELEMENTS, WITH A VIEW TO THE TUNING ON A TRANSMITTING STATION WANTED FOR EACH OF THEM.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT49126/79A IT1117184B (en) | 1979-05-22 | 1979-05-22 | IMPROVEMENT IN TUNING SYSTEMS AVAILABLE IN PARTICULAR FOR RADIO RECEIVERS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2457600A1 true FR2457600A1 (en) | 1980-12-19 |
FR2457600B3 FR2457600B3 (en) | 1982-02-19 |
Family
ID=11269721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8011324A Granted FR2457600A1 (en) | 1979-05-22 | 1980-05-21 | IMPROVEMENT RELATING TO PRESET TUNING SYSTEMS, ESPECIALLY FOR RADIO RECEIVERS |
Country Status (11)
Country | Link |
---|---|
CH (1) | CH640676A5 (en) |
DE (1) | DE3019346A1 (en) |
DK (1) | DK222480A (en) |
ES (1) | ES8104681A1 (en) |
FR (1) | FR2457600A1 (en) |
GB (1) | GB2050734A (en) |
IT (1) | IT1117184B (en) |
NL (1) | NL8002909A (en) |
NO (1) | NO801487L (en) |
PT (1) | PT71337A (en) |
SE (1) | SE8003796L (en) |
-
1979
- 1979-05-22 IT IT49126/79A patent/IT1117184B/en active
-
1980
- 1980-05-19 GB GB8016444A patent/GB2050734A/en not_active Withdrawn
- 1980-05-20 NL NL8002909A patent/NL8002909A/en not_active Application Discontinuation
- 1980-05-20 NO NO801487A patent/NO801487L/en unknown
- 1980-05-21 DK DK222480A patent/DK222480A/en not_active Application Discontinuation
- 1980-05-21 SE SE8003796A patent/SE8003796L/en not_active Application Discontinuation
- 1980-05-21 CH CH397980A patent/CH640676A5/en not_active IP Right Cessation
- 1980-05-21 FR FR8011324A patent/FR2457600A1/en active Granted
- 1980-05-21 DE DE19803019346 patent/DE3019346A1/en not_active Withdrawn
- 1980-05-21 ES ES491704A patent/ES8104681A1/en not_active Expired
- 1980-06-02 PT PT71337A patent/PT71337A/en unknown
Also Published As
Publication number | Publication date |
---|---|
SE8003796L (en) | 1980-11-23 |
ES491704A0 (en) | 1981-04-01 |
NL8002909A (en) | 1980-11-25 |
CH640676A5 (en) | 1984-01-13 |
FR2457600B3 (en) | 1982-02-19 |
DE3019346A1 (en) | 1980-12-04 |
IT7949126A0 (en) | 1979-05-22 |
NO801487L (en) | 1980-11-24 |
IT1117184B (en) | 1986-02-17 |
GB2050734A (en) | 1981-01-07 |
PT71337A (en) | 1980-07-01 |
ES8104681A1 (en) | 1981-04-01 |
DK222480A (en) | 1980-11-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |