JPH01124725U - - Google Patents

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Publication number
JPH01124725U
JPH01124725U JP1988021482U JP2148288U JPH01124725U JP H01124725 U JPH01124725 U JP H01124725U JP 1988021482 U JP1988021482 U JP 1988021482U JP 2148288 U JP2148288 U JP 2148288U JP H01124725 U JPH01124725 U JP H01124725U
Authority
JP
Japan
Prior art keywords
gate
signal
bias voltage
vhf
uhf
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
JP1988021482U
Other languages
English (en)
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 JP1988021482U priority Critical patent/JPH01124725U/ja
Publication of JPH01124725U publication Critical patent/JPH01124725U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】
第１図は本考案のテレビジヨンチユーナの一実
施例を示す回路図、第２図は従来のテレビジヨン
チユーナの混合段を示す回路図である。 Ｑ……デユアルゲートＦＥＴ、Ｇ１……第１ゲ
ート、＋ＶＢ……ＶＨＦ受信時用電源、Ｒ１，Ｒ
３……バイアス抵抗。

Claims (1)

    【実用新案登録請求の範囲】
  1. 第１のゲートに、ＶＨＦ受信時はＶＨＦ・ＲＦ
    信号及び局部発振信号が印加され、ＵＨＦ受信時
    にはＵＨＦ・ＩＦ信号が印加されると共に、第２
    のゲートには上記両受信時とも一定の直流バイア
    ス電圧が印加され、ドレインにＩＦ出力信号を得
    るようにした混合段用のデユアルゲートＦＥＴを
    備えるテレビジヨンチユーナに於いて、前記第１
    のゲートに、ＶＨＦ受信時は一定の直流バイアス
    を印加し、ＵＨＦ受信時は直流バイアス電圧を全
    く印加しないようにしたことを特徴とするテレビ
    ジヨンチユーナ。
JP1988021482U 1988-02-19 1988-02-19 Pending JPH01124725U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988021482U JPH01124725U (ja) 1988-02-19 1988-02-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988021482U JPH01124725U (ja) 1988-02-19 1988-02-19

Publications (1)

Publication Number Publication Date
JPH01124725U true JPH01124725U (ja) 1989-08-24

Family

ID=31238763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988021482U Pending JPH01124725U (ja) 1988-02-19 1988-02-19

Country Status (1)

Country Link
JP (1) JPH01124725U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5719608B2 (ja) * 1977-10-20 1982-04-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5719608B2 (ja) * 1977-10-20 1982-04-23

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