JPS5982316U - Tape recorder muting circuit - Google Patents

Tape recorder muting circuit

Info

Publication number
JPS5982316U
JPS5982316U JP17870782U JP17870782U JPS5982316U JP S5982316 U JPS5982316 U JP S5982316U JP 17870782 U JP17870782 U JP 17870782U JP 17870782 U JP17870782 U JP 17870782U JP S5982316 U JPS5982316 U JP S5982316U
Authority
JP
Japan
Prior art keywords
transistor
muting
recording
playback
tape recorder
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.)
Granted
Application number
JP17870782U
Other languages
Japanese (ja)
Other versions
JPH0320932Y2 (en
Inventor
杉戸　収
Original Assignee
三洋電機株式会社
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 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to JP17870782U priority Critical patent/JPS5982316U/en
Publication of JPS5982316U publication Critical patent/JPS5982316U/en
Application granted granted Critical
Publication of JPH0320932Y2 publication Critical patent/JPH0320932Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

図示した回路は本考案のミューティング回路の一実施例
である。 主な図番の説明、１．　２．　３．　４．　５・・・録
音再生切換スイッチ、６・・・録音再生兼用磁気ヘッド
、７・・・再生用増幅回路、１１・・・主増幅回路、１
３・・・録音用増幅回路、１４・・・ミューティングト
ランジスター、１５・・・信号伝送路、１６・・・制御
トランジスター、１８・・・スイッチ、１９・・・第１
スイツチングトランジスター、２２・・・第２スイツチ
ングトラ□ンジスター。The illustrated circuit is one embodiment of the muting circuit of the present invention. Explanation of main figure numbers, 1. 2. 3. 4. 5... Recording/playback selector switch, 6... Magnetic head for both recording and playback, 7... Playback amplifier circuit, 11... Main amplifier circuit, 1
3... Recording amplifier circuit, 14... Muting transistor, 15... Signal transmission path, 16... Control transistor, 18... Switch, 19... First
Switching transistor, 22...Second switching transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 磁気ヘッドにより再生された信号の伝送路と接地間に接
続されていると共に導通状態にあるとき該伝送路の信号
を側路するミューティングトランジスターと、該ミュー
ティングトランジスターの動作を制御するべく接続され
た制御トランジスターと、チープレコーターの録音動作
と再生動作とを切換える録音再生切換スイッチと、該録
音再生切換スイッチが再生位置にあり且つテープレコー
ダーが停止状態にあるとき導通し前記制御トランジスタ
ーを導通状態にせしめる第１スイツチングトランジスタ
ーと、前記録音再生切換スイッチが録音位置にあるとき
導通し前記制御トランジスターを導通状態にせしめる第
２スイツチングトランジスターと、再生動作状態にある
とき開放され前記第１スイツチングトランジスターを非
導通状態にせしめるスイッチとより成り、前記制御トラ
ンジスターが導通状態にあるとき該制御トランジスター
のエミッタ・コレクタ路を通して前記ミューティングト
ランジスターのベースにバイアス電流を供給し、以って
前記ミューティングトランジスターを導通状態にせしめ
るようにしたことを特徴とするテープレコーダーのミュ
ーティング回路。A muting transistor connected between a transmission line for a signal reproduced by the magnetic head and ground and bypassing the signal on the transmission line when in a conductive state; and a muting transistor connected to control the operation of the muting transistor. a control transistor, a recording/playback selector switch that switches between recording operation and playback operation of the cheap recorder, and conducts when the recording/playback selector switch is in the playback position and the tape recorder is in a stopped state, causing the control transistor to be in a conductive state. a first switching transistor that conducts when the recording/playback selector switch is in the recording position and causes the control transistor to be conductive; a switch for rendering the transistor non-conducting and supplying a bias current to the base of the muting transistor through the emitter-collector path of the control transistor when the control transistor is conductive, thereby disabling the muting transistor; A muting circuit for a tape recorder, characterized in that the muting circuit is configured to bring the circuit into a conductive state.
JP17870782U 1982-11-25 1982-11-25 Tape recorder muting circuit Granted JPS5982316U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17870782U JPS5982316U (en) 1982-11-25 1982-11-25 Tape recorder muting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17870782U JPS5982316U (en) 1982-11-25 1982-11-25 Tape recorder muting circuit

Publications (2)

Publication Number Publication Date
JPS5982316U true JPS5982316U (en) 1984-06-04
JPH0320932Y2 JPH0320932Y2 (en) 1991-05-07

Family

ID=30387921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17870782U Granted JPS5982316U (en) 1982-11-25 1982-11-25 Tape recorder muting circuit

Country Status (1)

Country Link
JP (1) JPS5982316U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5480716U (en) * 1977-11-17 1979-06-08
JPS5590021U (en) * 1978-12-08 1980-06-21

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5480716U (en) * 1977-11-17 1979-06-08
JPS5590021U (en) * 1978-12-08 1980-06-21

Also Published As

Publication number Publication date
JPH0320932Y2 (en) 1991-05-07

Similar Documents

Publication Publication Date Title
JPS5982316U (en) Tape recorder muting circuit
JPS5971408U (en) Tape recorder muting circuit
JPS60180306U (en) Equalizer switching circuit for tape recorder
JPS5894196U (en) Control circuit for tape recorder with radio
JPS60169704U (en) Input signal switching device
JPS5884603U (en) tape recorder circuit
JPS5989437U (en) tape recorder
JPS5897728U (en) Switching device for tape recorder with copy recording function
JPS5925635U (en) magnetic recording and reproducing device
JPS5950012U (en) tape recorder
JPS5942547U (en) Tape recorder muting circuit
JPS5920418U (en) Tape recorder recording level adjustment device
JPS616989U (en) Tape recorder control circuit
JPS6023927U (en) video tape recorder
JPS6031707U (en) magnetic recording and reproducing device
JPS5974511U (en) Tape recorder recording/playback switching circuit
JPS5950009U (en) tape recorder
JPS5925696U (en) Dubbing tape recorder with radio
JPS58159655U (en) Tape recorder motor control circuit
JPS61136374U (en)
JPH01124933U (en)
JPS6211205U (en)
JPS5884690U (en) Power control circuit for tape recorder with radio
JPS58140596U (en) tape recorder with radio
JPS5933115U (en) Input switching device for audio equipment