JPS6179803U - - Google Patents
Info
- Publication number
- JPS6179803U JPS6179803U JP16266184U JP16266184U JPS6179803U JP S6179803 U JPS6179803 U JP S6179803U JP 16266184 U JP16266184 U JP 16266184U JP 16266184 U JP16266184 U JP 16266184U JP S6179803 U JPS6179803 U JP S6179803U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- radio
- selection switch
- 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
- 239000003990 capacitor Substances 0.000 claims 2
Landscapes
- Circuits Of Receivers In General (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
図示した回路は本考案の制御回路の一実施例で
ある。
主な図番の説明、１…再生ヘツド、２…前置増
幅回路、３…選択スイツチ、４…ラジオ受信回路
、５…デイエンフアシス回路、１１…主増幅回路
、１５…スイツチングトランジスター、１７…制
御抵抗。
The illustrated circuit is one embodiment of the control circuit of the present invention. Explanation of main drawing numbers, 1... Reproduction head, 2... Preamplifier circuit, 3... Selection switch, 4... Radio receiving circuit, 5 ... De-emphasis circuit, 11... Main amplifier circuit, 15... Switching transistor, 17... Control resistance.
Claims (1)
る選択スイツチと、磁気テープに録音されている
信号を再生する再生ヘツドと、前記選択スイツチ
がテープレコーダー使用側にあるとき電源が供給
されて動作状態になると共に前記再生ヘツドによ
り再生された信号を増幅する前置増幅回路と、前
記選択スイツチがラジオ使用側にあるとき電源が
供給されて動作状態になるラジオ受信回路と、該
ラジオ受信回路の出力信号路に挿入接続されてい
ると共に抵抗及びコンデンサーとより成るデイエ
ンフアシス回路と、前記前置増幅回路により増幅
された再生信号及び前記デイエンフアシス回路を
通過したラジオ放送信号が印加されると共に該信
号のレベルを調整する可変抵抗器と、該可変抵抗
器によつてレベル調整された信号が印加されると
共に該信号を増幅する主増幅回路と、前記デイエ
ンフアシス回路の出力側の信号路にコレクタが制
御抵抗を介して接続されていると共にエミツタが
接地され、且つ前記選択スイツチがテープレコー
ダー使用側にあるときベース電流が供給されて導
通状態になるスイツチングトランジスターとより
成り、前記制御抵抗値を前記デイエンフアシス回
路を構成するコンデンサーのオーデイオ帯域にお
けるインピーダンスより小にしたことを特徴とす
るラジオ付テープレコーダーの制御回路。 a selection switch for switching between tape recorder use and radio use; a playback head for playing back signals recorded on the magnetic tape; and when the selection switch is on the tape recorder use side, power is supplied and the device is in operation; a preamplifier circuit that amplifies the signal reproduced by the reproduction head; a radio receiving circuit that is supplied with power and becomes operational when the selection switch is on the radio use side; and inserted into the output signal path of the radio receiving circuit. a de-emphasis circuit connected thereto and comprising a resistor and a capacitor, and a variable resistor to which the reproduced signal amplified by the preamplifier circuit and the radio broadcast signal passed through the de-emphasis circuit are applied and adjust the level of the signal. a main amplifier circuit to which a signal level-adjusted by the variable resistor is applied and amplifies the signal; and a collector connected to a signal path on the output side of the de-emphasis circuit via a control resistor. a switching transistor whose emitter is grounded and which is supplied with a base current and becomes conductive when the selection switch is on the tape recorder use side, and the control resistance value is set to the audio output of the capacitor constituting the de-emphasis circuit. A control circuit for a tape recorder with a radio, characterized in that the impedance is smaller than the impedance in the band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16266184U JPH0316155Y2 (en) | 1984-10-26 | 1984-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16266184U JPH0316155Y2 (en) | 1984-10-26 | 1984-10-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6179803U true JPS6179803U (en) | 1986-05-28 |
| JPH0316155Y2 JPH0316155Y2 (en) | 1991-04-08 |
Family
ID=30720536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16266184U Expired JPH0316155Y2 (en) | 1984-10-26 | 1984-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0316155Y2 (en) |
-
1984
- 1984-10-26 JP JP16266184U patent/JPH0316155Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0316155Y2 (en) | 1991-04-08 |
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