An electronics post for a change -- about input bias. Input bias stabilises a circuit's input. Typically, R1 + R2 in this example would fall within 1 MΩ, so that bias current would be no less than 1 µA. I have been experimenting with less than 1 nA -- which is extreme. I think the Internet would say it is about impossible. The purpose of such a very light bias is that it would help very, very delicate inputs. Today I achieved useful results, with (as far as I can see) a new method of bias. I have a new invention to present to the world.
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