Uploaded June 2022 | Updated September 2026, 1 week ago

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Talking about electrolytic capacitors and their failure modes, their impedance - equivalent series resistance (ESR) and equivalent series inductance (ESL), comparing them to other types of capacitors (tantalum, film, ceramic). Showing how to use ESR meters (capacitor testers), how do they work and what's inside. Including the schematic of a simple DIY capacitor ESR meter I've built 20 years ago: danyk.cz/esr_en.html

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