SU618870A1 - Stereophonic electric record player - Google Patents

Stereophonic electric record player

Info

Publication number
SU618870A1
SU618870A1 SU762420336A SU2420336A SU618870A1 SU 618870 A1 SU618870 A1 SU 618870A1 SU 762420336 A SU762420336 A SU 762420336A SU 2420336 A SU2420336 A SU 2420336A SU 618870 A1 SU618870 A1 SU 618870A1
Authority
SU
USSR - Soviet Union
Prior art keywords
stereophonic
record player
electric record
electric
outputs
Prior art date
Application number
SU762420336A
Other languages
Russian (ru)
Inventor
Михаил Валериевич Келмаков
Original Assignee
Kelmakov Mikhail V
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 Kelmakov Mikhail V filed Critical Kelmakov Mikhail V
Priority to SU762420336A priority Critical patent/SU618870A1/en
Application granted granted Critical
Publication of SU618870A1 publication Critical patent/SU618870A1/en

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  • Stereophonic Arrangements (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Description

(54) СТЕРЕОФОНИЧЕСКИЙ ЭЛЕКТРОФОН(54) STEREO-PHONE ELECTROPHONE

II

Изобретение относитс  к области прибо . ростроенн  и может быть использовано приThis invention relates to the field of surf. rostroenn and can be used when

механической записи информации на диск.mechanical recording of information on the disk.

Известны стереофонические электрофоны, состо щие из электропроигрывающего устройства , усилител  и громкоговорител  Ij. Однако отмечаетс  низкое качество воспроизведени ИЗ-за виброшумов и шумов грамзаписи .Stereophonic electrophones are known, consisting of an electroplay device, an amplifier and a loudspeaker Ij. However, there is a poor quality of reproduction due to vibro noise and recording noise.

Наиболее близким к предложенному по своей технической сущности  вл етс  стереофонический электрофон, содержащий элострОпроигрывающее устройство, звукосниматель которого подключен к двум предварнтельным усилител м, и два усилител  мощности, каждый из которых подключен к соответствующему громкоговорителю 2The closest to the proposed technical essence is a stereophonic electric device containing an electro-reproducing device, the pickup of which is connected to two pre amp amplifiers, and two power amplifiers, each of which is connected to a corresponding loudspeaker 2

Недостатком его  вл етс  также сравнительно низкое качество воспроизведени , так. как несмотр  на использование специального ниэкооборотного элекгродчигател  сусилителем мощности Дл  привода электродвигател  и сложной кинематической схемы передачи вращени  от электродвигател  к пластннке , шумы грамзаписи не устран ютс .The disadvantage of it is also a relatively low reproduction quality, so. As with the use of a special low speed electric power amplifier with a power amplifier. For driving a motor and a complex kinematic scheme for transmitting rotation from a motor to a plastic, the recording noise is not eliminated.

Целью изобретени   вл етс  повышение качества воспроизведени .The aim of the invention is to improve the quality of reproduction.

Поставленна  цель достагаетс  снабжением стереофонического электрофона двум  делител ми напр жени  и цеп ми компенсации , подключенными к выходам делителей напр жени , каждый из которых включен между соответствующим предварительным усилителем и усилителем мощностн.. На чертеже приведена блок-схема предложенного электрофона.The goal is to supply the stereo elec- trophone with two voltage dividers and compensation circuits connected to the outputs of the voltage dividers, each of which is connected between the corresponding pre-amplifier and power amplifier. The drawing shows the block diagram of the proposed electrophone.

Электрофон состоит из электропронгрывающего устройства с электродвигателем tElectrophone consists of an electropneumatic device with an electric motor t

и звукоснимателем 2, соединенным соответстденно с предварительными усилител ми 3 и 4, выходы которых св заны со входами делителей напр жени  5 н 6, выполненных, например, на резисторах с коэффициентом делени  от 1/3 до 1/10. Выходы делителей 5and a pickup 2 connected respectively to preamplifiers 3 and 4, the outputs of which are connected to the inputs of voltage dividers 5 and 6, made, for example, on resistors with a division factor from 1/3 to 1/10. The outputs of the dividers 5

и 6 стединены со входами усилителей мощности 7 и 8, выходы которых подключены к громкоговорител м 9 и 10. Выходы делнтелей напр жени  5 и 6 замкнуты цеп ми компенсации , например дросселем 1 и емкостьюand 6 are connected to the inputs of power amplifiers 7 and 8, the outputs of which are connected to loudspeakers 9 and 10. The outputs of the voltage dividers 5 and 6 are closed by compensation circuits, for example, choke 1 and capacitor

12, и соедин ютс  ключом 13.12, and are connected by a key 13.

Стереофонический электрофон работаетStereo audio works

следующим образом.in the following way.

Сигналы грамзаписн, воспроизводимые сRecordable signals played from

ластинки с помощью звукоснимател  2, усииваютс  и выравниваютс  предварительныThe blades using the pickup 2 are magnified and aligned prior

SU762420336A 1976-11-18 1976-11-18 Stereophonic electric record player SU618870A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762420336A SU618870A1 (en) 1976-11-18 1976-11-18 Stereophonic electric record player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762420336A SU618870A1 (en) 1976-11-18 1976-11-18 Stereophonic electric record player

Publications (1)

Publication Number Publication Date
SU618870A1 true SU618870A1 (en) 1978-08-05

Family

ID=20682920

Family Applications (1)

Application Number Title Priority Date Filing Date
SU762420336A SU618870A1 (en) 1976-11-18 1976-11-18 Stereophonic electric record player

Country Status (1)

Country Link
SU (1) SU618870A1 (en)

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