no, its not.The attachment is corrupted. Can you check it and try uploading again?
How can you say it is a poorly designed mess when you admit you do not really understand it? Is it not possible that the circuit is more complex than you would expect it because it has better performance than a simpler circuit? I would not be so quick to dismiss something I do not understand.The circuit is poorly designed. It is practically a mess. I think U1 is a voltage reference, but I'm not sure.
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by Lianne Frith