JPS5731222A - Tuning indicating device - Google Patents

Tuning indicating device

Info

Publication number
JPS5731222A
JPS5731222A JP10576580A JP10576580A JPS5731222A JP S5731222 A JPS5731222 A JP S5731222A JP 10576580 A JP10576580 A JP 10576580A JP 10576580 A JP10576580 A JP 10576580A JP S5731222 A JPS5731222 A JP S5731222A
Authority
JP
Japan
Prior art keywords
tuning
time
display elements
detuning
consecutively
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
JP10576580A
Other languages
Japanese (ja)
Inventor
Akiyoshi Otsuki
Yasuhiro Muramatsu
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 JP10576580A priority Critical patent/JPS5731222A/en
Publication of JPS5731222A publication Critical patent/JPS5731222A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/12—Electrically-operated arrangements for indicating correct tuning
    • H03J3/14—Visual indication, e.g. magic eye

Abstract

PURPOSE:To ensure a effective mode of indication for both the tuning and detuning times, by alternately blinking two display elements in the deturning time and consecutively turning on only one of the two display elements in the tuning time, respectively. CONSTITUTION:Display elements D1 and D2 are inserted into each emitter circuit of a pair of switching transistors Q3 and Q3 of a multivibrator M. Then a turner circuit 11 is provided to give an oscillation stop state or an oscillation state to the vibrator M in accordance with the presence or absence of the tuning indication output. The 1st display elements D1 and D2 are alternately blinked in the detuning time, and at the same time one of the elements D1 and D2 is consecutively turned on in the tuning time respectively.
JP10576580A 1980-07-31 1980-07-31 Tuning indicating device Pending JPS5731222A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10576580A JPS5731222A (en) 1980-07-31 1980-07-31 Tuning indicating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10576580A JPS5731222A (en) 1980-07-31 1980-07-31 Tuning indicating device

Publications (1)

Publication Number Publication Date
JPS5731222A true JPS5731222A (en) 1982-02-19

Family

ID=14416279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10576580A Pending JPS5731222A (en) 1980-07-31 1980-07-31 Tuning indicating device

Country Status (1)

Country Link
JP (1) JPS5731222A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60197974A (en) * 1984-10-02 1985-10-07 Sharp Corp Protecting device of disk-shaped recording medium
JPS6332367U (en) * 1986-08-19 1988-03-02

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60197974A (en) * 1984-10-02 1985-10-07 Sharp Corp Protecting device of disk-shaped recording medium
JPS6332367U (en) * 1986-08-19 1988-03-02

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