JPS5628519A - Channel selection unit - Google Patents

Channel selection unit

Info

Publication number
JPS5628519A
JPS5628519A JP10515079A JP10515079A JPS5628519A JP S5628519 A JPS5628519 A JP S5628519A JP 10515079 A JP10515079 A JP 10515079A JP 10515079 A JP10515079 A JP 10515079A JP S5628519 A JPS5628519 A JP S5628519A
Authority
JP
Japan
Prior art keywords
voltage
upper limit
frequency
limit
tuner
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
JP10515079A
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 JP10515079A priority Critical patent/JPS5628519A/en
Publication of JPS5628519A publication Critical patent/JPS5628519A/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

Abstract

PURPOSE:To make it possible to limit a receiving frequency band surely and easily, by controlling the upper limit of the tuning voltage by a Zener diode and by setting the minimum value of the tuning voltage by the semifixed resistor connected in series to a variable resistor. CONSTITUTION:In respect to setting of the upper limit of a receivable frequency, the Zener voltage of Zener diode 8 provided in tuner 2 is set to a value lower than the voltage in the input side of channel selecting part 4, and the upper limit of the receivable frequency in the UHF band is adjusted by this voltage value. In respect to adjustment of the lower limit, semi-fixed resistances 7a and 7b are so adjusted that the set frequency can be received after assembling tuner 2 and channel selecting part 4.
JP10515079A 1979-08-17 1979-08-17 Channel selection unit Pending JPS5628519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10515079A JPS5628519A (en) 1979-08-17 1979-08-17 Channel selection unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10515079A JPS5628519A (en) 1979-08-17 1979-08-17 Channel selection unit

Publications (1)

Publication Number Publication Date
JPS5628519A true JPS5628519A (en) 1981-03-20

Family

ID=14399686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10515079A Pending JPS5628519A (en) 1979-08-17 1979-08-17 Channel selection unit

Country Status (1)

Country Link
JP (1) JPS5628519A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04317807A (en) * 1991-04-17 1992-11-09 Yasuhiro Ogoshi Tire chain

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04317807A (en) * 1991-04-17 1992-11-09 Yasuhiro Ogoshi Tire chain

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