Ripple diagram description
The influence of the current signal on the simulation effect: the audio image of the current signal is obtained by the ripple tester. The value is expressed in MV (millivolt). The ripple value of most adapters is 450 MV, and the image fluctuates greatly. When electrical signals are amplified hundreds of times by sound, noise will be generated. Therefore, the smaller the ripple (MV) value, the smaller the noise. What we make is a professional guitar pedal adapter, so its ripple is below 30MV. Let you not worry about noise.