How to provide + and - to an opamp

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Meanwhile in another rabbit hole

I began to wonder if the diode network in the crate schematic was equivalent to the oft seen traditional "diamond" shaped bridge rectifier

Ok so time to draw each side by side and make a comparison

My conclusion is that yes they are the same

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So I wonder why Crate drew it like that

But I am very glad that they did draw it like that because it was easier for me to make heads or tails out of it