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RetroTechie | 9 months ago

> Piezoelectricity

Ceramic capacitors can have similar issues: apply voltage, part warps a tiny bit. @ the right frequencies some (mechanical) resonance effects might come into play. Yay! But I have a hard time imagining this to be a real-world problem.

Edit: "microphony" or "microphonics"

https://en.wikipedia.org/wiki/Microphonics

Just an idea: coil whine might be reversible too. Vibrate coil, get some (noise in) inductor current.

Oh yeah: don't yell too loud at your (spinning) harddrives.

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