JPS53108219A - Channel selection device - Google Patents

Channel selection device

Info

Publication number
JPS53108219A
JPS53108219A JP2295477A JP2295477A JPS53108219A JP S53108219 A JPS53108219 A JP S53108219A JP 2295477 A JP2295477 A JP 2295477A JP 2295477 A JP2295477 A JP 2295477A JP S53108219 A JPS53108219 A JP S53108219A
Authority
JP
Japan
Prior art keywords
channel selection
circuit
selection device
piling
aft
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
JP2295477A
Other languages
Japanese (ja)
Inventor
Shigeyoshi Takehara
Akinobu Masuko
Shizuo Hayashida
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2295477A priority Critical patent/JPS53108219A/en
Publication of JPS53108219A publication Critical patent/JPS53108219A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To secure a good channel selection by providing a piling sensitivity switching circuit of the AFT voltage piling circuit, which can reduce the impedance effect of the channel selection voltage memory element or the AFT circuit as well as decrease the variable range of the channel selection voltage and the temperature drift.
JP2295477A 1977-03-03 1977-03-03 Channel selection device Pending JPS53108219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2295477A JPS53108219A (en) 1977-03-03 1977-03-03 Channel selection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2295477A JPS53108219A (en) 1977-03-03 1977-03-03 Channel selection device

Publications (1)

Publication Number Publication Date
JPS53108219A true JPS53108219A (en) 1978-09-20

Family

ID=12096996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2295477A Pending JPS53108219A (en) 1977-03-03 1977-03-03 Channel selection device

Country Status (1)

Country Link
JP (1) JPS53108219A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59134935U (en) * 1983-02-28 1984-09-08 三洋電機株式会社 AFT voltage superimposition circuit
JPH01129919U (en) * 1988-02-26 1989-09-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59134935U (en) * 1983-02-28 1984-09-08 三洋電機株式会社 AFT voltage superimposition circuit
JPH01129919U (en) * 1988-02-26 1989-09-05

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