FR858203A - Radio receiving apparatus intended for reception on several wavelength bands - Google Patents

Radio receiving apparatus intended for reception on several wavelength bands

Info

Publication number
FR858203A
FR858203A FR858203DA FR858203A FR 858203 A FR858203 A FR 858203A FR 858203D A FR858203D A FR 858203DA FR 858203 A FR858203 A FR 858203A
Authority
FR
France
Prior art keywords
reception
receiving apparatus
radio receiving
wavelength bands
apparatus intended
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
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR858203A publication Critical patent/FR858203A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/02—Volume compression or expansion in amplifiers having discharge tubes
    • 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
    • H03J5/04—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 hand
    • H03J5/12—Settings determined by a number of separately-actuated driving means which adjust the tuning element directly to desired settings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/202—Gamma control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Push-Button Switches (AREA)
FR858203D 1938-07-23 1939-07-24 Radio receiving apparatus intended for reception on several wavelength bands Expired FR858203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL212538X 1938-07-23

Publications (1)

Publication Number Publication Date
FR858203A true FR858203A (en) 1940-11-20

Family

ID=19778897

Family Applications (1)

Application Number Title Priority Date Filing Date
FR858203D Expired FR858203A (en) 1938-07-23 1939-07-24 Radio receiving apparatus intended for reception on several wavelength bands

Country Status (3)

Country Link
US (1) US2232217A (en)
CH (1) CH212538A (en)
FR (1) FR858203A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513353A (en) * 1944-06-14 1950-07-04 Freeman H Owens Mechanism for adjusting and setting radios or other apparatus
US2863043A (en) * 1953-04-23 1958-12-02 Blaupunkt Werke Gmbh Push button radio tuning mechanism with band switching contacts
US2855507A (en) * 1953-07-07 1958-10-07 Blaupunkt Werke Gmbh Radio tuning keyboard with interlocking station and band keys with independently depressable band keys
US2847874A (en) * 1956-08-28 1958-08-19 Chrysler Corp Transmission control mechanism
US2910885A (en) * 1957-09-20 1959-11-03 Motorola Inc Pushbutton gearshift selector
NL7605095A (en) * 1976-05-13 1977-11-15 Philips Nv STATION SELECTOR WITH HINGED ARM.

Also Published As

Publication number Publication date
CH212538A (en) 1940-11-30
US2232217A (en) 1941-02-18

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