JPS54157608A - Tape recorder - Google Patents
Tape recorderInfo
- Publication number
- JPS54157608A JPS54157608A JP6565678A JP6565678A JPS54157608A JP S54157608 A JPS54157608 A JP S54157608A JP 6565678 A JP6565678 A JP 6565678A JP 6565678 A JP6565678 A JP 6565678A JP S54157608 A JPS54157608 A JP S54157608A
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- amplifier
- speaker
- feedback
- switch devices
- 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
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
PURPOSE: To make possible the use of a microphone as a detector of feedback signal, reduce distortions and obtain good reproduced sounds by providing a feedback circuit and switch devices between the microphone and the amplifier input side of the reproducing circuit.
CONSTITUTION: At the reproducing, switch devices 23, 27, 32, 38, 40 are connected to P terminal and the signal is applied from a playback head 31 to a speaker 39 via amplifiers 34, 37. The sound is outputted from a sound releasing part 14 and is supplied from a microphone 21 to the amplifier 37 via variable resistor 41 and feedback amplifier 42. Hence, the acoustic feedback loop from the microphone 21 to the speaker 39 is formed, thus the distortion produced by the amplifier, etc. and the distortion by the cone paper of the speaker are reduced.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6565678A JPS54157608A (en) | 1978-06-02 | 1978-06-02 | Tape recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6565678A JPS54157608A (en) | 1978-06-02 | 1978-06-02 | Tape recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54157608A true JPS54157608A (en) | 1979-12-12 |
Family
ID=13293257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6565678A Pending JPS54157608A (en) | 1978-06-02 | 1978-06-02 | Tape recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54157608A (en) |
-
1978
- 1978-06-02 JP JP6565678A patent/JPS54157608A/en active Pending
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