Re: 9 volt adapter reading 12 volts?

Posted by Silver Blues on Dec 30, 2017; 10:39pm
URL: http://guitar-fx-layouts.238.s1.nabble.com/9-volt-adapter-reading-12-volts-tp41080p41107.html

Nah it's not bad or mislabelled, it's just not regulated. Without a load on the output the power supply will read higher than its rated voltage pretty much no matter what. Lots of inexpensive/low quality power supplies won't be regulated, this isn't uncommon by any means. I imagine if you tried to power something with it and took the reading across the circuit you'd see somewhere around 9v.