JPS567516A - Channel selection unit for receiver - Google Patents

Channel selection unit for receiver

Info

Publication number
JPS567516A
JPS567516A JP8333379A JP8333379A JPS567516A JP S567516 A JPS567516 A JP S567516A JP 8333379 A JP8333379 A JP 8333379A JP 8333379 A JP8333379 A JP 8333379A JP S567516 A JPS567516 A JP S567516A
Authority
JP
Japan
Prior art keywords
fed
voltage
circuit
switch
tuning
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
JP8333379A
Other languages
Japanese (ja)
Inventor
Takao Mizuno
Takuji Kato
Yoshihiko Amada
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP8333379A priority Critical patent/JPS567516A/en
Publication of JPS567516A publication Critical patent/JPS567516A/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)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To selectively drive the television receiver or the radio receiver with one knob, by providing the switching means in the electronic type tuner using varactor diodes. CONSTITUTION:In receiving television signal, when the first switch 7 is connected as shown in figure, the power supply 5 is fed to the TV reception circuit 1 and the audio output circuit 6, and the voltage VH is fed to the variable resistor 9 from the TV tuning voltage generating circuit 3 and the voltage VT is fed to the tuning varactor diode 12 of the TV reception circuit 1 via the second switch 8 from the moving terminal, enabling to select desired channel. Further, when the switch 7 is switched to opposite position, the power supply 5 is fed to the radio reception circuit 2 and the cicuit 6, the voltage from the circuit 2 is fed to the radio tuning circuit 4 to be the voltage VL, which is fed to the resistor 9 via the switching diode 11. The voltage VT in this case is fed to the tuning varactor diode 13 of the circuit 2 via the switch 8, enabling to receive desired station.
JP8333379A 1979-06-29 1979-06-29 Channel selection unit for receiver Pending JPS567516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8333379A JPS567516A (en) 1979-06-29 1979-06-29 Channel selection unit for receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8333379A JPS567516A (en) 1979-06-29 1979-06-29 Channel selection unit for receiver

Publications (1)

Publication Number Publication Date
JPS567516A true JPS567516A (en) 1981-01-26

Family

ID=13799497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8333379A Pending JPS567516A (en) 1979-06-29 1979-06-29 Channel selection unit for receiver

Country Status (1)

Country Link
JP (1) JPS567516A (en)

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