JPS548401A - Variable tuning circuit - Google Patents

Variable tuning circuit

Info

Publication number
JPS548401A
JPS548401A JP7322677A JP7322677A JPS548401A JP S548401 A JPS548401 A JP S548401A JP 7322677 A JP7322677 A JP 7322677A JP 7322677 A JP7322677 A JP 7322677A JP S548401 A JPS548401 A JP S548401A
Authority
JP
Japan
Prior art keywords
frequency
tuning circuit
variable tuning
property
nearly
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
JP7322677A
Other languages
Japanese (ja)
Inventor
Toshio Nagashima
Mitsuhisa Shinagawa
Shigeo Matsuura
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 JP7322677A priority Critical patent/JPS548401A/en
Publication of JPS548401A publication Critical patent/JPS548401A/en
Pending legal-status Critical Current

Links

Landscapes

  • Noise Elimination (AREA)

Abstract

PURPOSE: To enhance the image frequency disturbance eliminating property as well as the unnecessary radiation suppressing property of the local oscillation frequency, by securing nearly a constant difference between the receiving frequency and the trap frequency even though the variable capacity is changed.
COPYRIGHT: (C)1979,JPO&Japio
JP7322677A 1977-06-22 1977-06-22 Variable tuning circuit Pending JPS548401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7322677A JPS548401A (en) 1977-06-22 1977-06-22 Variable tuning circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7322677A JPS548401A (en) 1977-06-22 1977-06-22 Variable tuning circuit

Publications (1)

Publication Number Publication Date
JPS548401A true JPS548401A (en) 1979-01-22

Family

ID=13512044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7322677A Pending JPS548401A (en) 1977-06-22 1977-06-22 Variable tuning circuit

Country Status (1)

Country Link
JP (1) JPS548401A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50135901A (en) * 1974-02-15 1975-10-28
JPS6320620U (en) * 1986-07-25 1988-02-10

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50135901A (en) * 1974-02-15 1975-10-28
JPS6320620U (en) * 1986-07-25 1988-02-10

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