JPS5978516U - Tape recorder recording/playback switching circuit - Google Patents
Tape recorder recording/playback switching circuitInfo
- Publication number
- JPS5978516U JPS5978516U JP17370882U JP17370882U JPS5978516U JP S5978516 U JPS5978516 U JP S5978516U JP 17370882 U JP17370882 U JP 17370882U JP 17370882 U JP17370882 U JP 17370882U JP S5978516 U JPS5978516 U JP S5978516U
- Authority
- JP
- Japan
- Prior art keywords
- playback
- recording
- circuit
- tape recorder
- switch
- 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
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図示した回路は、本考案の録音再生切換回線の一実施例
である。
主な図番の説明、１・・・録音再生兼用磁気ヘッド、２
・・・テープレコーダー回路、７・・・第１録音再生切
換スイツチ、９・・・録音再生切換回路、１０・・・第
２録音再生切換スイツチ、１１・・−第１時定数回路、
１４・・・第１コンデンサー、１５・・・第１スイツチ
ングトランジスター、１７・・・第２スイツチングトラ
ンジスター、１９・・・第３スイツチングトランジスタ
ー、２２・・・第２時定数回路、２４・・・第２コンデ
ンサー、２５・・・バイアス発振回路、２７・・・第４
スイッチングトランジス多−１２８・・・第１制御トラ
ンジスター、３０・・・第２制御トランジスター、３２
・・・第３制御トランジスター。The illustrated circuit is an embodiment of the recording/playback switching line of the present invention. Explanation of main figure numbers, 1...Magnetic head for both recording and playback, 2
. . . tape recorder circuit, 7 . . . first recording/playback selection switch, 9 . . . recording/playback switching circuit, 10 .
14... First capacitor, 15... First switching transistor, 17... Second switching transistor, 19... Third switching transistor, 22... Second time constant circuit, 24... ...Second capacitor, 25...Bias oscillation circuit, 27...Fourth
Switching transistor multi-128...First control transistor, 30...Second control transistor, 32
...Third control transistor.
Claims (1)
れたテープレコーダーにおいて、録音操作時再生位置よ
り録音位置に切換えられると共にテープレコーダー回路
の信号路を再生動作状態より録音動作状態に切換える第
１録音再生切換スイツチと、該第１録音再生切換スイツ
チと連動して切換えられると共にその切換途中において
再生側端子と録音側端子とが短絡されるショーテイング
型の第２録音再生切換スイツチと、該第２録音再生切換
スイツチが録音位置にあるとき充電される第１コンデン
サーを含む第１時定数回路と、該第１時定数回路からの
電流により充電される第２コンデンサーを含む第２時定
数回路と、前記第１ジンデンサーの充電電位が所定値以
上に上昇したとき前記テープレコーダー回路の増幅回路
を再生動作状態より録音動作状態に切換える切換回路と
、前記第２コンデンサーの充電電位が所定値以上に上昇
したときバイアス発振回路を動作状態にせしめるスイッ
チングトランジスターと、前記第２録音再生切換スイツ
チが再生位置にあるとき及び再生側端子と録音側端子と
が短絡された状態にあるとき導通し前記第２時定数回路
を構成する第２コンデンサーの充電動作を制御する制御
トランジスターとより成るテープレコーダーの録音再生
切換回路。′In a tape recorder configured to electronically switch between a recording operation and a playback operation, there is a first switch that switches from a playback position to a recording position during a recording operation and also switches a signal path of the tape recorder circuit from a playback operation state to a recording operation state. a recording/playback selector switch; a shorting-type second record/playback switch that is switched in conjunction with the first record/playback switch and short-circuits the playback side terminal and the recording side terminal during the switching; 2. A first time constant circuit including a first capacitor that is charged when the recording/playback selector switch is in the recording position; and a second time constant circuit including a second capacitor that is charged by the current from the first time constant circuit. , a switching circuit for switching the amplifier circuit of the tape recorder circuit from a playback operating state to a recording operating state when the charging potential of the first capacitor rises above a predetermined value; When this occurs, the switching transistor that activates the bias oscillation circuit is electrically conductive when the second recording/playback selector switch is in the playback position and the playback terminal and the recording terminal are short-circuited. A recording/playback switching circuit for a tape recorder comprising a control transistor that controls the charging operation of a second capacitor forming a constant circuit. ′
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17370882U JPS5978516U (en) | 1982-11-16 | 1982-11-16 | Tape recorder recording/playback switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17370882U JPS5978516U (en) | 1982-11-16 | 1982-11-16 | Tape recorder recording/playback switching circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5978516U true JPS5978516U (en) | 1984-05-28 |
| JPH0316082Y2 JPH0316082Y2 (en) | 1991-04-08 |
Family
ID=30378350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17370882U Granted JPS5978516U (en) | 1982-11-16 | 1982-11-16 | Tape recorder recording/playback switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5978516U (en) |
-
1982
- 1982-11-16 JP JP17370882U patent/JPS5978516U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0316082Y2 (en) | 1991-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5978516U (en) | Tape recorder recording/playback switching circuit | |
| JPS5974511U (en) | Tape recorder recording/playback switching circuit | |
| JPS58135097U (en) | Cue device for cassette tape recorder | |
| JPS58159655U (en) | Tape recorder motor control circuit | |
| JPS634252Y2 (en) | ||
| JPH0333951Y2 (en) | ||
| JPS58114543U (en) | Multi-function selection switch | |
| JPS58125216U (en) | recording/playback machine | |
| JPS59145732U (en) | Tape recorder control circuit | |
| JPS60754U (en) | Cue signal recording circuit | |
| JPS60180306U (en) | Equalizer switching circuit for tape recorder | |
| JPS5884636U (en) | Tape recorder tape travel control device | |
| JPS5971408U (en) | Tape recorder muting circuit | |
| JPS5925614U (en) | Tape recorder muting circuit | |
| JPS58190812U (en) | Tape recorder recording/playback switching circuit | |
| JPS5920413U (en) | Audio signal recording circuit | |
| JPS5982316U (en) | Tape recorder muting circuit | |
| JPS5884635U (en) | Cue control circuit for magnetic recording and reproducing equipment | |
| JPS5939497U (en) | Control signal generation circuit | |
| JPS58144625U (en) | tape recorder | |
| JPH01124933U (en) | ||
| JPS59135510U (en) | Tape recorder recording/playback switching circuit | |
| JPS5992495U (en) | Magnetic recording/reproducing device | |
| JPS5936012U (en) | Beat removal circuit | |
| JPS5843696U (en) | Beat erasure circuit for magnetic recording/playback device with radio receiver |