Re: "polarity protection" diodes - more useful than you might think

Posted by Travis on Nov 26, 2018; 2:10pm
URL: http://guitar-fx-layouts.238.s1.nabble.com/polarity-protection-diodes-more-useful-than-you-might-think-tp44848p44864.html

A rectifier converts AC to DC, the purpose of the reverse polarity protection diode is to prevent damage from connecting a battery backwards or using the wrong power supply (center positive)

If the diode is connected in series with the supply, it can help with decoupling which is why it might help with a noisy power supply