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A comment on Learn electricity and electronics fundamentals without taking a formal course. Parent comment

Re:Learn electricity and electronics fundamentals without ta... by neuroelectron on Saturday April 05, 2025 @05:52PM (#43597103)
OK I get how they work conceptually, I get how they work physically, but when I actually try to build a circuit with them it never works.
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Re:Learn electricity and electronics fundamentals without ta... by ohgr on Saturday April 05, 2025 @06:31PM (#43597351)
You clearly missed something in the former or latter or do not know how to verify if stuff is as expected.

Usually I build out the DC bias model (static operating point), test it in LTspice, then add the AC/small signal model on top. Or large signal model for switching etc. Everything generally works unless I did something stupid or it’s RF where things get a little less predictable.

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