building a simple electronic load

After testing a cheap power supply a few weeks ago, I decided I should have a basic electronic load if I'm going to test power supplies in teh future.

So I grabbed an assortment of components from my accumulation and threw this one together.

Obviously this would be more ideal if I designed it properly and used optimum parts, but it still works using whatever I had lying around.

The circuit I built is based on this article: https://www.codrey.com/electronic-cir...

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This isn't the only way to do it.
It's probably not the best way to do it.
But it's how I did it.