JPS5826719U - Tape recorder muting circuit - Google Patents
Tape recorder muting circuitInfo
- Publication number
- JPS5826719U JPS5826719U JP11899281U JP11899281U JPS5826719U JP S5826719 U JPS5826719 U JP S5826719U JP 11899281 U JP11899281 U JP 11899281U JP 11899281 U JP11899281 U JP 11899281U JP S5826719 U JPS5826719 U JP S5826719U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- muting
- control transistor
- tape recorder
- control
- 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
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、４・・・・・・主増幅回路、５・・・
・・・出力端子、６・・・・・・ミューティング用トラ
ンジスター、７・・・・・・信号伝送路、８・・・・・
・コンデンサー、９・・・・・・逆流防止用ダイオード
、１０・・・・・・制御トランジスター、１３・・・・
・・ブリッジ回路、１４・・・・・・電源線路、１９・
・・・・・検出用トランジスター、２０・・・・・・ミ
ューティング信号発生回路。The illustrated circuit is one embodiment of the muting circuit of the present invention. Explanation of main drawing numbers, 4... Main amplifier circuit, 5...
... Output terminal, 6 ... Muting transistor, 7 ... Signal transmission path, 8 ...
・Capacitor, 9...Reverse current prevention diode, 10...Control transistor, 13...
...Bridge circuit, 14...Power line, 19.
. . . Detection transistor, 20 . . . Muting signal generation circuit.
Claims (1)
ているミューティング用トランジスターと、該ミューテ
ィング用トランジスターの動作ヲ制御するべく接続され
ていると共にオン状態にあるとき前記ミューティング用
トランジスターをオン状態にせしめる制御トランジスタ
ーと、電源供給状態において逆流防止用ダイオードを通
して常時充電されていると共に前記制御トランジスター
の電流供給側に接続されているコンデンサーと、電源線
路と接地間に接続されていると共に前記逆流防止用ダイ
オードと共に一辺を構成する抵抗を含む４つの抵抗より
成るブリッジ回路と、該ブリッジ回路の平衡端子にエミ
ッタ及びベースが接続されていると共にコレクタが前記
制御トランジスターノベースに接続されている検出用ト
ランジスターとより成るテープレコーダーのミューティ
ング回路。A muting transistor whose collector-emitter path is connected between the signal transmission path and ground, and a muting transistor that is connected to control the operation of the muting transistor and turns on the muting transistor when it is in the on state. a control transistor that is connected to the current supply side of the control transistor, which is constantly charged through a reverse current prevention diode in the power supply state and connected to the current supply side of the control transistor; and a capacitor that is connected between the power line and ground and that prevents the reverse current flow A bridge circuit consisting of four resistors including a resistor forming one side together with a prevention diode, and a detecting circuit whose emitter and base are connected to the balanced terminals of the bridge circuit, and whose collector is connected to the base of the control transistor. A tape recorder muting circuit consisting of transistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11899281U JPS5826719U (en) | 1981-08-10 | 1981-08-10 | Tape recorder muting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11899281U JPS5826719U (en) | 1981-08-10 | 1981-08-10 | Tape recorder muting circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5826719U true JPS5826719U (en) | 1983-02-21 |
| JPS634291Y2 JPS634291Y2 (en) | 1988-02-03 |
Family
ID=29913082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11899281U Granted JPS5826719U (en) | 1981-08-10 | 1981-08-10 | Tape recorder muting circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5826719U (en) |
-
1981
- 1981-08-10 JP JP11899281U patent/JPS5826719U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS634291Y2 (en) | 1988-02-03 |
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