JPS63108241U - - Google Patents

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Publication number
JPS63108241U
JPS63108241U JP20139286U JP20139286U JPS63108241U JP S63108241 U JPS63108241 U JP S63108241U JP 20139286 U JP20139286 U JP 20139286U JP 20139286 U JP20139286 U JP 20139286U JP S63108241 U JPS63108241 U JP S63108241U
Authority
JP
Japan
Prior art keywords
band
double
circuit
tuned circuit
primary side
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
JP20139286U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP20139286U priority Critical patent/JPS63108241U/ja
Publication of JPS63108241U publication Critical patent/JPS63108241U/ja
Pending legal-status Critical Current

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  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例になる多バンドチユ
ーナの複同調回路の回路図、第２図は従来例にな
る多バンドチユーナの複同調回路の回路図を夫々
示す。 Ｒ１，Ｒ２……抵抗、Ｃ１〜Ｃ１１……コンデ
ンサ、Ｄ１〜Ｄ１１……ダイオード、Ｌ１〜Ｌ４
，Ｌ１０……コイル、Ｌ５〜Ｌ９……インダクタ
（共掘線路）、ＤＶ１〜ＤＶ３……可変容量ダイ
オード、１……ＲＦ増巾回路。 FIG. 1 is a circuit diagram of a double tuning circuit of a multi-band tuner according to an embodiment of the present invention, and FIG. 2 is a circuit diagram of a double tuning circuit of a conventional multi-band tuner. R1 , R2 ...Resistor, C1 - C11 ...Capacitor, D1 - D11 ...Diode, L1 - L4
 , L 10 ... Coil, L 5 - L 9 ... Inductor (co-mining line), DV 1 - DV 3 ... Variable capacitance diode, 1 ... RF amplification circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ＲＦ増巾回路の出力側にＶＨＦ帯及びＵＨＦ帯
の複同調回路が夫々接続され、ＶＨＦ帯の該複同
調回路の１次側コイルと、ＵＨＦ帯の該複同調回
路の１次側インダクタとが交流的に並列接続され
た多バンドチユーナの複同調回路において、ＵＨ
Ｆ帯受信時にＶＨＦ帯の該１次側コイルに電磁結
合している２次側の同調用コイルの両端を交流的
に接地する様にした構成の多バンドチユーナの複
同調回路。 VHF band and UHF band double tuned circuits are connected to the output side of the RF amplification circuit, respectively, and the primary side coil of the VHF band double tuned circuit and the primary side inductor of the UHF band double tuned circuit are connected to the output side of the RF amplification circuit. In a double-tuned circuit of multi-band tuners connected in parallel in AC, UH
A double-tuned circuit for a multi-band tuner configured such that both ends of a secondary side tuning coil, which is electromagnetically coupled to the VHF band primary side coil, are AC-grounded during F-band reception.
JP20139286U 1986-12-27 1986-12-27 Pending JPS63108241U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20139286U JPS63108241U (en) 1986-12-27 1986-12-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20139286U JPS63108241U (en) 1986-12-27 1986-12-27

Publications (1)

Publication Number Publication Date
JPS63108241U true JPS63108241U (en) 1988-07-12

Family

ID=31164800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20139286U Pending JPS63108241U (en) 1986-12-27 1986-12-27

Country Status (1)

Country Link
JP (1) JPS63108241U (en)

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