Daily Archives: September 9, 2022

Sideband #76: Fun with Op Amps

Last November I posted about electronics “shortcuts” — rules of thumb that help interpret, even design, a circuit. These are approximations of more complex behavior but work well enough for a first cut at understanding a circuit.

Do not confuse these electronics shortcuts, which are generally good, with electronic short-circuits, which are almost always bad. While both offer shorter paths, that’s not a good thing in the latter case. Sometimes the journey is the only reward.

I intended to continue with op amps but kept putting it off. There are other Sidebands pending, though, so it’s time to drop the other shoe.

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