JPS5430713A - Fm/am band change-over circuit - Google Patents

Fm/am band change-over circuit

Info

Publication number
JPS5430713A
JPS5430713A JP9674077A JP9674077A JPS5430713A JP S5430713 A JPS5430713 A JP S5430713A JP 9674077 A JP9674077 A JP 9674077A JP 9674077 A JP9674077 A JP 9674077A JP S5430713 A JPS5430713 A JP S5430713A
Authority
JP
Japan
Prior art keywords
over circuit
band change
band
noises
operate
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.)
Pending
Application number
JP9674077A
Other languages
Japanese (ja)
Inventor
Mitsuru Adachi
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP9674077A priority Critical patent/JPS5430713A/en
Publication of JPS5430713A publication Critical patent/JPS5430713A/en
Pending 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)

Abstract

PURPOSE:To reduce the generation of noises at a band-changing time by previously supplying a power voltage, which is small enough not to operate a local oscillation part, to an unselected band.
JP9674077A 1977-08-11 1977-08-11 Fm/am band change-over circuit Pending JPS5430713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9674077A JPS5430713A (en) 1977-08-11 1977-08-11 Fm/am band change-over circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9674077A JPS5430713A (en) 1977-08-11 1977-08-11 Fm/am band change-over circuit

Publications (1)

Publication Number Publication Date
JPS5430713A true JPS5430713A (en) 1979-03-07

Family

ID=14173087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9674077A Pending JPS5430713A (en) 1977-08-11 1977-08-11 Fm/am band change-over circuit

Country Status (1)

Country Link
JP (1) JPS5430713A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020145A (en) * 1986-03-05 1991-05-28 Goldstar Co., Ltd. AM/FM band selector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020145A (en) * 1986-03-05 1991-05-28 Goldstar Co., Ltd. AM/FM band selector

Similar Documents

Publication Publication Date Title
JPS5228847A (en) Crystal oscillator
JPS5430713A (en) Fm/am band change-over circuit
JPS53146040A (en) Igniter
JPS545399A (en) Power source circuit
JPS5396657A (en) Digital frequency divider circuit
JPS5414281A (en) Battery voltage detecting circuit
JPS53121562A (en) Mos integrated circuit device
JPS5399858A (en) Phase lock circuit
JPS5237734A (en) Reference electric potential generator circuit
JPS53959A (en) A-d converter
JPS54966A (en) Logic circuit
JPS5381002A (en) Power circuit of cordless telephone set
JPS53136495A (en) Light signal generator
JPS5229147A (en) Semiconductor directoscillator
JPS5412548A (en) Microwave circuit
JPS538553A (en) Division circuit
JPS5360548A (en) Transistor oscillating circuit
JPS5421212A (en) Band selection circuit
JPS52119047A (en) Oscillating circuit
JPS5296065A (en) Electronic wrist watch
JPS5420651A (en) Output circuit
JPS5338247A (en) Current-voltage converter circuit
JPS5323212A (en) Afc circuit
JPS5364073A (en) Electronic watch
JPS52127733A (en) Oscilating circuit