Thanks for your help! I’ve checked the jacks, and the inputs themselves, which are all working fine. I haven’t tried what you said about the battery clip to adapter, but I’ll try it out. I have a feeling that it may just be my choice of power supply. I’ll but a proper EHX one, see if that makes a difference. Thank you very much for your help (:
600mA. It powers my Little Big Muff just fine though.