JPS54157608A - Tape recorder - Google Patents

Tape recorder

Info

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
Application number
JP6565678A
Other languages
Japanese (ja)
Inventor
Masami Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6565678A priority Critical patent/JPS54157608A/en
Publication of JPS54157608A publication Critical patent/JPS54157608A/en
Pending legal-status Critical Current

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
JP6565678A 1978-06-02 1978-06-02 Tape recorder Pending JPS54157608A (en)

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)

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