Description updated: 2021.10.19
Test power supply voltage:
4V-9V
Test power supply current:
50-100mA
Test power supply:
8.4V 1000mAh battery
LM386N requires four. All of them use common plastic op amps, and there are no gold seals or ceramic packages.
It is recommended to prepare some extra 10uF, 100uF, and 470uF electrolytic capacitors for tuning.
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