JPS56132013A - Channel selecting device - Google Patents

Channel selecting device

Info

Publication number
JPS56132013A
JPS56132013A JP3523880A JP3523880A JPS56132013A JP S56132013 A JPS56132013 A JP S56132013A JP 3523880 A JP3523880 A JP 3523880A JP 3523880 A JP3523880 A JP 3523880A JP S56132013 A JPS56132013 A JP S56132013A
Authority
JP
Japan
Prior art keywords
voltage
band
switching
constant
vhf
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
JP3523880A
Other languages
Japanese (ja)
Inventor
Isao Fujimoto
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP3523880A priority Critical patent/JPS56132013A/en
Publication of JPS56132013A publication Critical patent/JPS56132013A/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
    • H03J5/244—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 using electronic means

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To regulate a tunable range for every band, by switching constant-voltage sources, which are supply sources of tuning voltages, while interlocking with band switching of UHF and VHF. CONSTITUTION:Channel selecting part 4 has band switching part 6 for selection of the UHF band, the VHF high band, and VHF low band and variable resistance 5 for channel selection. Band switching part 6 connects a prescribed voltage to the voltage applied terminal of tuner 1. Voltage source 7 consists of constant- voltage source V1 and constant-voltage source V2 which regulates the upper limit voltage lower than the voltage of V1. Voltage V1 is given to the switching contact of bands if the frequency range of the receiving band is not regulated; and voltage V2 is given to the switching contact of bands if it is regulated. There are some cases where the voltage to set the lower limit is provided as voltage V2.
JP3523880A 1980-03-19 1980-03-19 Channel selecting device Pending JPS56132013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3523880A JPS56132013A (en) 1980-03-19 1980-03-19 Channel selecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3523880A JPS56132013A (en) 1980-03-19 1980-03-19 Channel selecting device

Publications (1)

Publication Number Publication Date
JPS56132013A true JPS56132013A (en) 1981-10-16

Family

ID=12436256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3523880A Pending JPS56132013A (en) 1980-03-19 1980-03-19 Channel selecting device

Country Status (1)

Country Link
JP (1) JPS56132013A (en)

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