My question is about circuits like the one attached. I actually don't know what it is, and it's not my intention to know it for now. I actually refer to those big and old circuit diagrams which have thousands of opamps, transistors, and analog components in general. For a digital/microcontroller guy (like me), this might take a longer time to understand it all compared to an analog designer with a vast experience. As I said, my question is not to understand this circuit, but to know if nowadays these circuits are being significantly reduced using microcontrollers or special ICs. Let's say you're given one of these big diagrams with obsolete parts and you have to redesign it from scratch. I would like to hear people who have had the experience of redesigning an old circuit. What would your approach be? Of course, the first step would be to understand the application of the circuit.
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