Hey guys!
Just wondering, I have a Corona Chorus pedal, and it runs out of battery very fast wich annoys me alot. So I searched my closet for an adapter and I found one that has the same polarities, it is a 9V AC/DC adapter, but... It says 330mA, the pedal says 100mA
Would it be safe to use it anyways?

Yes, that's fine. The mA number is how much current it can put out, so using an adapter that can supply more current than the regular one is not a problem. The pedal only draws what it needs.