FR2457600A1 - IMPROVEMENT RELATING TO PRESET TUNING SYSTEMS, ESPECIALLY FOR RADIO RECEIVERS - Google Patents

IMPROVEMENT RELATING TO PRESET TUNING SYSTEMS, ESPECIALLY FOR RADIO RECEIVERS

Info

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
Application number
FR8011324A
Other languages
French (fr)
Other versions
FR2457600B3 (en
Inventor
Sergio Palamidessi
Giuseppe Carbone
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.)
Voxson SpA
Original Assignee
Voxson SpA
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.)
Filing date
Publication date
Application filed by Voxson SpA filed Critical Voxson SpA
Publication of FR2457600A1 publication Critical patent/FR2457600A1/en
Application granted granted Critical
Publication of FR2457600B3 publication Critical patent/FR2457600B3/fr
Granted legal-status Critical Current

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.

FR8011324A 1979-05-22 1980-05-21 IMPROVEMENT RELATING TO PRESET TUNING SYSTEMS, ESPECIALLY FOR RADIO RECEIVERS Granted FR2457600A1 (en)

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)

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