Okay, while the forums were down i took a risk buying this; thought the power adaptor was modded or just really old; turns out its really old, the pots date it to 1974 (10th week) and there's no option for a battery on this!! Im gonna include as many photos as possible just for any one to comment as to what the trouble may be.. No loose wires or chips, tried adjusting the trim to see if had been changed, all im getting is a steady "bump" noise, no static or signal but just a steady bumping, whether with a boss/Dunlop/ singled out onespot. Was wondering regardless if anybody else had seen one with this type of power adaptor or has any info on what id be safest using/looking to fix?? The power supply is on top and definitely was never on the sides or anywhere else.. ^the ahead of its time power adaptor? Possible grounding issue?? No difference in the popping sound when I roll the knob either way.. Thanks for everyone's time and anyone's help or advice.