JPS58155619U - Monaural output circuit in stereo tape recorder - Google Patents
Monaural output circuit in stereo tape recorderInfo
- Publication number
- JPS58155619U JPS58155619U JP5238882U JP5238882U JPS58155619U JP S58155619 U JPS58155619 U JP S58155619U JP 5238882 U JP5238882 U JP 5238882U JP 5238882 U JP5238882 U JP 5238882U JP S58155619 U JPS58155619 U JP S58155619U
- Authority
- JP
- Japan
- Prior art keywords
- variable resistor
- tape recorder
- switching transistor
- output circuit
- stereo
- 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
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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図Ａはステレオ用ミニプラグの側面図、第１図Ｂは
モノラル用ミニプラグの側面図、第２図は本考案の回路
構成図である。
１・・・ステレオ用ミニプラグ、７・・・モノラル用ミ
ニプラグ、１０・・・左チヤンネル系統、１５・・・右
チヤンネル系統、１２．１ニア・・・プリアンプ、１４
゜１９・・・パワーアンプ、２０・・・ステレオヘッド
ホン用ジャック、２１・・・音量バランス調整用可変抵
抗器、ａ ｉ、 ａ ４−・・スイッチソゲトランジ
スタ。FIG. 1A is a side view of a stereo mini-plug, FIG. 1B is a side view of a monaural mini-plug, and FIG. 2 is a circuit configuration diagram of the present invention. 1...Mini plug for stereo, 7...Mini plug for monaural, 10...Left channel system, 15...Right channel system, 12.1 Near...Preamplifier, 14
゜19...Power amplifier, 20...Stereo headphone jack, 21...Variable resistor for volume balance adjustment, ai, a4-...Switch transistor.
Claims (1)
用可変抵抗器の両端が接続され且つ左右チャンネル系の
アンプ出力側にステレオヘッドホン用ジャックが接続さ
れたテープレコーダーにおいて、前記ステレオヘッドホ
ン用ジャックにモノラル用プラグが挿入された際、出力
が接地される左右いずれかのチャンネルに対応した前記
バランス調整用可変抵抗器の一端にスイッチングトラン
ジスタのベース回路を接続し、該可変抵抗器の可動片を
その一端に位置させることにより前記スイッチングトラ
ンジスタを反転動作させ、導通状態にあるスイッチング
トランジスタを通じて左右チャンネル信号を前記可変抵
抗器の入力側で混合するように構成したことを特徴とす
るステレオテープレコーダーにおけるモノラル出力回路
。In a tape recorder in which both ends of a variable resistor for volume balance adjustment whose midpoint is grounded between the left and right channels are connected, and a stereo headphone jack is connected to the amplifier output side of the left and right channels, a monaural sound is connected to the stereo headphone jack. When the plug is inserted, the base circuit of the switching transistor is connected to one end of the balance adjustment variable resistor corresponding to either the left or right channel whose output is grounded, and the movable piece of the variable resistor is connected to one end of the balance adjustment variable resistor. A monaural output circuit in a stereo tape recorder, characterized in that the switching transistor is placed in an inverted state so that the switching transistor is inverted, and the left and right channel signals are mixed on the input side of the variable resistor through the conducting switching transistor. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5238882U JPS58155619U (en) | 1982-04-09 | 1982-04-09 | Monaural output circuit in stereo tape recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5238882U JPS58155619U (en) | 1982-04-09 | 1982-04-09 | Monaural output circuit in stereo tape recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58155619U true JPS58155619U (en) | 1983-10-18 |
Family
ID=30063097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5238882U Pending JPS58155619U (en) | 1982-04-09 | 1982-04-09 | Monaural output circuit in stereo tape recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58155619U (en) |
-
1982
- 1982-04-09 JP JP5238882U patent/JPS58155619U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS58155619U (en) | Monaural output circuit in stereo tape recorder | |
| JPS59119690U (en) | Stereo tape recorder output circuit | |
| JPS6140055U (en) | Separation correction circuit | |
| JPS5811376U (en) | headphone adapter | |
| JPS6316796U (en) | ||
| JPS58129791U (en) | monaural earphone device | |
| JPS5920794U (en) | stereo equipment | |
| JPS60163890U (en) | stereo playback device | |
| JPS6072094U (en) | Audio equipment output circuit | |
| JPS60181986U (en) | stereo playback device | |
| JPS588285U (en) | Sound field expansion circuit for stereo sound equipment | |
| JPS5973820U (en) | stereo amplifier | |
| JPS6054236U (en) | headphone stereo | |
| JPS588284U (en) | Sound field expansion circuit for stereo sound equipment | |
| JPS58185000U (en) | stereo wide circuit | |
| JPS5885874U (en) | audio equipment | |
| JPS59173112U (en) | Recording/playback input/output switching circuit | |
| JPS5922592U (en) | headphone | |
| JPS59161797U (en) | headphone circuit | |
| JPS60167500U (en) | Sound reproduction equipment | |
| JPS5939576U (en) | Improvements in the audio equipment of television receivers | |
| JPS5865611U (en) | Composite audio equipment | |
| JPS5952794U (en) | microphone input circuit | |
| JPS5865612U (en) | Composite audio equipment | |
| JPS60153018U (en) | automatic volume adjustment circuit |