JPS56114428A - Channel selection equipment - Google Patents

Channel selection equipment

Info

Publication number
JPS56114428A
JPS56114428A JP1806480A JP1806480A JPS56114428A JP S56114428 A JPS56114428 A JP S56114428A JP 1806480 A JP1806480 A JP 1806480A JP 1806480 A JP1806480 A JP 1806480A JP S56114428 A JPS56114428 A JP S56114428A
Authority
JP
Japan
Prior art keywords
voltage
variable resistor
lower limit
tuning voltage
channel selection
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
JP1806480A
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 JP1806480A priority Critical patent/JPS56114428A/en
Publication of JPS56114428A publication Critical patent/JPS56114428A/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
    • H03J5/246—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 using electronic means

Abstract

PURPOSE:To control the lower limit of the tuning voltage by applying the lower limited voltage to the low potential side of a variable resistor for varying the tuning voltage. CONSTITUTION:The channel selection part 4 is constituted of a band switching part 41 and a channel switching part 42. The sliding terminal 51 of each variable resistor 5 is connected to the terminal for applying the tuning voltage of the tuner 1 through the channel switch 45. The lower limited voltage which has been obtained by means of voltage division by the rsistors 7, 8 is applied to the low potential side of the variable resistor 5. Accordingly, since the lower limit of the tuning voltage Vt is controlled, the lower limit of the receivable frequency range can be controlled.
JP1806480A 1980-02-14 1980-02-14 Channel selection equipment Pending JPS56114428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1806480A JPS56114428A (en) 1980-02-14 1980-02-14 Channel selection equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1806480A JPS56114428A (en) 1980-02-14 1980-02-14 Channel selection equipment

Publications (1)

Publication Number Publication Date
JPS56114428A true JPS56114428A (en) 1981-09-09

Family

ID=11961244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1806480A Pending JPS56114428A (en) 1980-02-14 1980-02-14 Channel selection equipment

Country Status (1)

Country Link
JP (1) JPS56114428A (en)

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