GB507305A - Improvements in electric systems for controlling the tuning of radio receiving apparatus - Google Patents

Improvements in electric systems for controlling the tuning of radio receiving apparatus

Info

Publication number
GB507305A
GB507305A GB37459/38A GB3745938A GB507305A GB 507305 A GB507305 A GB 507305A GB 37459/38 A GB37459/38 A GB 37459/38A GB 3745938 A GB3745938 A GB 3745938A GB 507305 A GB507305 A GB 507305A
Authority
GB
United Kingdom
Prior art keywords
motor
feeler
disc
switches
contacts
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.)
Expired
Application number
GB37459/38A
Other languages
English (en)
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.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB507305A publication Critical patent/GB507305A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/1481—Control of position or direction using feedback using an analogue comparing device with discrete position sensor
    • 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
    • H03J1/18—Control by auxiliary power
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/14—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings operated by auxiliary power
    • H03J5/146—Settings desired by a switch controlled together with the tuning member and which stops the control as soon as a desired position is reached

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Control Of Position Or Direction (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
GB37459/38A 1937-12-29 1938-12-23 Improvements in electric systems for controlling the tuning of radio receiving apparatus Expired GB507305A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1937N0041484 DE686190C (de) 1937-12-29 1937-12-29 bestimmter Stationen mittels eines Motors selbsttaetig abstimmbar ist

Publications (1)

Publication Number Publication Date
GB507305A true GB507305A (en) 1939-06-13

Family

ID=5791858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37459/38A Expired GB507305A (en) 1937-12-29 1938-12-23 Improvements in electric systems for controlling the tuning of radio receiving apparatus

Country Status (6)

Country Link
US (1) US2251054A (enrdf_load_stackoverflow)
BE (1) BE431868A (enrdf_load_stackoverflow)
CH (1) CH206319A (enrdf_load_stackoverflow)
DE (1) DE686190C (enrdf_load_stackoverflow)
FR (1) FR848058A (enrdf_load_stackoverflow)
GB (1) GB507305A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720619A (en) * 1949-01-11 1955-10-11 Northrop Aircraft Inc Automatic resetting positioning control

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2454832A (en) * 1946-02-20 1948-11-30 Charles L Paulus Electric servo
DE1158614B (de) * 1957-05-01 1963-12-05 Gen Electric Rastschalter mit Motorantrieb
US3493745A (en) * 1966-06-16 1970-02-03 Picker Corp Apparatus for preventing collision between two electrically conductive and relatively movable servo-controlled elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720619A (en) * 1949-01-11 1955-10-11 Northrop Aircraft Inc Automatic resetting positioning control

Also Published As

Publication number Publication date
BE431868A (enrdf_load_stackoverflow) 1939-01-31
CH206319A (de) 1939-07-31
US2251054A (en) 1941-07-29
DE686190C (de) 1940-01-04
FR848058A (fr) 1939-10-23

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