JPS5220715A - Receiving band switching equipment - Google Patents

Receiving band switching equipment

Info

Publication number
JPS5220715A
JPS5220715A JP50096867A JP9686775A JPS5220715A JP S5220715 A JPS5220715 A JP S5220715A JP 50096867 A JP50096867 A JP 50096867A JP 9686775 A JP9686775 A JP 9686775A JP S5220715 A JPS5220715 A JP S5220715A
Authority
JP
Japan
Prior art keywords
switching equipment
band switching
receiving band
coils
receiving
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
JP50096867A
Other languages
Japanese (ja)
Other versions
JPS5421690B2 (en
Inventor
Tsuneo Okubo
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP50096867A priority Critical patent/JPS5220715A/en
Publication of JPS5220715A publication Critical patent/JPS5220715A/en
Publication of JPS5421690B2 publication Critical patent/JPS5421690B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H03J5/24—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 a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—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 a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

PURPOSE:Reduction of the number of change-over switches by connecting one switching element in series with the antenna tuning coils and the local oscillator coils.
JP50096867A 1975-08-09 1975-08-09 Receiving band switching equipment Granted JPS5220715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50096867A JPS5220715A (en) 1975-08-09 1975-08-09 Receiving band switching equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50096867A JPS5220715A (en) 1975-08-09 1975-08-09 Receiving band switching equipment

Publications (2)

Publication Number Publication Date
JPS5220715A true JPS5220715A (en) 1977-02-16
JPS5421690B2 JPS5421690B2 (en) 1979-08-01

Family

ID=14176379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50096867A Granted JPS5220715A (en) 1975-08-09 1975-08-09 Receiving band switching equipment

Country Status (1)

Country Link
JP (1) JPS5220715A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0276618A (en) * 1988-09-09 1990-03-16 Amada Co Ltd Cutting with vertical band saw machine
JPH02166924A (en) * 1988-12-21 1990-06-27 Nec Eng Ltd Receiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0276618A (en) * 1988-09-09 1990-03-16 Amada Co Ltd Cutting with vertical band saw machine
JPH02166924A (en) * 1988-12-21 1990-06-27 Nec Eng Ltd Receiver

Also Published As

Publication number Publication date
JPS5421690B2 (en) 1979-08-01

Similar Documents

Publication Publication Date Title
JPS5246745A (en) Double tuning radio frequency antenna
JPS53954A (en) Radio antenna
JPS52116155A (en) Radio wave generator by microwave
GB1540815A (en) Radio antenna
JPS52135243A (en) Radio frequency antenna device
JPS52117507A (en) Am radio receiver
GB1548038A (en) Spin tuned magnetrons
JPS5220715A (en) Receiving band switching equipment
NZ179794A (en) Two-band tuned circuit
JPS5218114A (en) Antenna changeover switch
JPS51122357A (en) Multi-layered sandwich-shaped radome
JPS51144549A (en) High frequency band phase shifter
JPS538005A (en) Frequency mixer
JPS51144548A (en) Wide band high frequency variable element
JPS5220714A (en) Receiving band switching equipment
JPS52126117A (en) Input tuning circuit
JPS5314510A (en) Radio receiver
GB1541619A (en) Cabinet fo radio receiver and the like
JPS51128209A (en) Synthesizer receiver
JPS5333514A (en) Radio receiver
NL7900715A (en) RADIO RECEIVER WITH ELECTRONIC TUNING IN NUMBER OF BANDS.
JPS5286710A (en) Am-fm radio receiver
GB1553507A (en) Radio receiver with freiquency lock circuit
JPS535912A (en) Radio receiver
JPS5413205A (en) Automatic channel tuner