JPS5583328A - Tuning circuit of uhf tuner - Google Patents

Tuning circuit of uhf tuner

Info

Publication number
JPS5583328A
JPS5583328A JP15637378A JP15637378A JPS5583328A JP S5583328 A JPS5583328 A JP S5583328A JP 15637378 A JP15637378 A JP 15637378A JP 15637378 A JP15637378 A JP 15637378A JP S5583328 A JPS5583328 A JP S5583328A
Authority
JP
Japan
Prior art keywords
coils
inductance
metal piece
tuning circuit
coil
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
JP15637378A
Other languages
Japanese (ja)
Inventor
Hiroshi Hatashita
Toshio Nagashima
Takeshi Saito
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15637378A priority Critical patent/JPS5583328A/en
Publication of JPS5583328A publication Critical patent/JPS5583328A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To realize application to a plane-wired tuner by adjusting an inductance by providing a slidable metal piece between two resonance coils.
CONSTITUTION: Two resonance coils 15 and 16 are arranged in parallel; one-side terminals of both coils 15 and 16 are mutually connected and further connected to varactor diode 3, etc., and while the other terminal of coil 15 is grounded, the other one of coil 16 is free. In this way, metal piece 17 is inserted between resonance coils 15 and 16 to make a connection between both coils 15 and 16 and metal piece 17 is slid to make an adjustment of an inductance. Consequently, coils 15 and 16 themselves provide the inductance adjustment and an earth surface extending over a wide area is unneeded, so that application to a plane-wired tuner can be realized.
COPYRIGHT: (C)1980,JPO&Japio
JP15637378A 1978-12-20 1978-12-20 Tuning circuit of uhf tuner Pending JPS5583328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15637378A JPS5583328A (en) 1978-12-20 1978-12-20 Tuning circuit of uhf tuner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15637378A JPS5583328A (en) 1978-12-20 1978-12-20 Tuning circuit of uhf tuner

Publications (1)

Publication Number Publication Date
JPS5583328A true JPS5583328A (en) 1980-06-23

Family

ID=15626326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15637378A Pending JPS5583328A (en) 1978-12-20 1978-12-20 Tuning circuit of uhf tuner

Country Status (1)

Country Link
JP (1) JPS5583328A (en)

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