Amp - What’s going on here

101

01:25:41

If you start the circuit with the SPDTs switched to the raw wire, you get an amplified sine centered around zero, even when switching to the “voltmeter”. When you start with the SPDTs oriented to the “voltmeter”, the signal get positively biased, even when switching back to the raw wire. I mean in theory, is selecting a wire to view the voltage the same as viewing it through a dedicated voltmeter? If so, why the different results depending on which switch’s are enabled at circuit start up?

published 3 years ago

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