JPS58165725U - Tape recorder playback circuit - Google Patents
Tape recorder playback circuitInfo
- Publication number
- JPS58165725U JPS58165725U JP6300682U JP6300682U JPS58165725U JP S58165725 U JPS58165725 U JP S58165725U JP 6300682 U JP6300682 U JP 6300682U JP 6300682 U JP6300682 U JP 6300682U JP S58165725 U JPS58165725 U JP S58165725U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- microphone
- circuit
- amplifier circuit
- 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
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、本考案の再生回路の一実施例である。
主な図番の説明、１・・・・・・マイクロフォン、２・
・・・・・マイクロフォン用増幅回路、６・・・・・・
磁気ヘッド、７・・・・・・前置増幅回路、９・・・・
・・主増幅回路、１２・・・・・・ヘッドフオンジャッ
ク、１６・・・・・・切換接片、１７・・・・・・スピ
ーカー、１８・・・・・・制御スイッチ、１９・・・・
・・レベル制御トランジスター。The illustrated circuit is one embodiment of the reproduction circuit of the present invention. Explanation of main figure numbers, 1...Microphone, 2.
...Microphone amplifier circuit, 6...
Magnetic head, 7... Preamplifier circuit, 9...
... Main amplifier circuit, 12 ... Headphone jack, 16 ... Switching contact piece, 17 ... Speaker, 18 ... Control switch, 19 ...・・・
...Level control transistor.
Claims (1)
幅回路と、マイクロフォンより得られるマイクロフォン
信号を増幅するマイクロフォン用増幅回路と、前記前置
増幅回路からの再生信号及びマイクロフォン用増幅回路
からのマイクロフォン信号が混合されて入力される主増
幅回路と、該主増幅回路の出々ン号が印加される信号端
子及びスピーカーへの信号供給を制御する切換接片を有
するヘッドフオンジャックと、該ヘッドフオンジャック
にヘッドフオンプラグが挿入されると閉成される制御ス
イッチと、該制御スイッチが閉成状態にあるときバイア
スされて導通状態になると共に前記マイクロフォン信号
のレベルを減衰せしめるレベル制御トランジスターとよ
りなるテープレコーダーの再生回路。a preamplifier circuit that amplifies a reproduction signal reproduced by a magnetic head; a microphone amplifier circuit that amplifies a microphone signal obtained from the microphone; and a reproduction signal from the preamplifier circuit and a microphone signal from the microphone amplifier circuit. a headphone jack having a main amplifier circuit to which a mixed signal is input, a signal terminal to which the output signal of the main amplifier circuit is applied, and a switching contact piece for controlling the signal supply to the speaker; and the headphone jack. a control switch that is closed when a headphone plug is inserted into the tape; and a level control transistor that is biased into a conductive state and attenuates the level of the microphone signal when the control switch is in the closed state. Recorder playback circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6300682U JPS58165725U (en) | 1982-04-27 | 1982-04-27 | Tape recorder playback circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6300682U JPS58165725U (en) | 1982-04-27 | 1982-04-27 | Tape recorder playback circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58165725U true JPS58165725U (en) | 1983-11-04 |
| JPH0337174Y2 JPH0337174Y2 (en) | 1991-08-06 |
Family
ID=30073127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6300682U Granted JPS58165725U (en) | 1982-04-27 | 1982-04-27 | Tape recorder playback circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58165725U (en) |
-
1982
- 1982-04-27 JP JP6300682U patent/JPS58165725U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0337174Y2 (en) | 1991-08-06 |
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