This post explains for the amplifier.
The Part Number is AN7062. The Package is DIP 18 Pin Type.
The function of this semiconductor is High Voltage Input Amplifier IC.
Manufacturer: Panasonic
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Description:
This is High Voltage Input Amplifier Circuit for Hi-Fi Power Amplifier.
The AN7062 is a high voltage integrated circuit designed for pre-driver of 60W-class Hi-Fi audio amp.
Stereo operation is enabled due to two amplifiers built-in.
Features:
1. High voltage
2. Low noise : Vni = 2.5μV (typ.)
3. Low distortion : THD = 0.003% (typ.)
4. Good channel separation
5. Wide operating supply voltage range
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