In some photos exploring this interesting circuit board I found out of a stereo system. I believe this circuit board is responsible for controlling the amplification transistors (probably the big silver things)
![](https://z7j86a.p3cdn1.secureserver.net/wp-content/uploads/2023/03/chip-thing-13.3.23-1024x702.webp)
![](https://z7j86a.p3cdn1.secureserver.net/wp-content/uploads/2023/03/macro-amp-components-13.3.23-1024x682.webp)
In some photos exploring this interesting circuit board I found out of a stereo system. I believe this circuit board is responsible for controlling the amplification transistors (probably the big silver things)