JPS55108923A - Equalizer circuit of tape recorder - Google Patents
Equalizer circuit of tape recorderInfo
- Publication number
- JPS55108923A JPS55108923A JP1661479A JP1661479A JPS55108923A JP S55108923 A JPS55108923 A JP S55108923A JP 1661479 A JP1661479 A JP 1661479A JP 1661479 A JP1661479 A JP 1661479A JP S55108923 A JPS55108923 A JP S55108923A
- Authority
- JP
- Japan
- Prior art keywords
- agc
- transistor
- rectification
- equalizer circuit
- circuit
- 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
- Control Of Amplification And Gain Control (AREA)
Abstract
PURPOSE: To obtain an equalizer circuit where the output waveform in the AGC region is not clipped with a simple constitution, by controlling the transistor for AGC through the transistor for AGC rectification.
CONSTITUTION: The low-frequency signal from a microphone or a radio receiving circuit which is inputted from terminal a of an equalizer circuit is amplified by amplifying transistors TR1 and TR2 connected to coupling capacitors C1 and C2 and is not only outputted through coupling capacitor C3 but also applied to transistor TR5 for rectification. Therefore, transistor TR3 for AGC rectification is controlled through transistor TR5 and coupling capacitor C4, and the AGC control dependent upon transistors TR1 and TR2 which are subjected to feedback control is performed. Consequently, the output waveform in the AGC region is not clipped, and the buffer circuit, etc., for clip prevention are needless.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1661479A JPS55108923A (en) | 1979-02-14 | 1979-02-14 | Equalizer circuit of tape recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1661479A JPS55108923A (en) | 1979-02-14 | 1979-02-14 | Equalizer circuit of tape recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55108923A true JPS55108923A (en) | 1980-08-21 |
Family
ID=11921195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1661479A Pending JPS55108923A (en) | 1979-02-14 | 1979-02-14 | Equalizer circuit of tape recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55108923A (en) |
-
1979
- 1979-02-14 JP JP1661479A patent/JPS55108923A/en active Pending
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