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Decode Your Multimeter with a Complete Must-Know Guide to Multimeter Symbols and Their Meanings

Back in the early days of electricity, lab workers could measure electric current in a circuit using an ammeter (galvanometer) and voltage using a voltmeter. From there, they could calculate ...
Ars Technica

Problem setting car amp input sensitivity using multimeter

All, I posted this at DIYMA, and didn't get too may helpful responses, so figured I'd ask the Hive Mind. Back in the '90s, I used to set amp gains by turning the level pot all the way up and then ...