CH212538A - Radio receiver for reception on several wavelength ranges. - Google Patents

Radio receiver for reception on several wavelength ranges.

Info

Publication number
CH212538A
CH212538A CH212538DA CH212538A CH 212538 A CH212538 A CH 212538A CH 212538D A CH212538D A CH 212538DA CH 212538 A CH212538 A CH 212538A
Authority
CH
Switzerland
Prior art keywords
reception
radio receiver
wavelength ranges
several wavelength
several
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH212538A publication Critical patent/CH212538A/en

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)
CH212538D 1938-07-23 1939-07-22 Radio receiver for reception on several wavelength ranges. CH212538A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH212538A true CH212538A (en) 1940-11-30

Family

ID=19778897

Family Applications (1)

Application Number Title Priority Date Filing Date
CH212538D CH212538A (en) 1938-07-23 1939-07-22 Radio receiver for reception on several wavelength ranges.

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
US2232217A (en) 1941-02-18
FR858203A (en) 1940-11-20

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