I have an old Ross (orange) phaser that sounded great, but doesn't work when hooked to a One spot with other pedals, I tried to reverse the red and black wires on the circuit board (reverse polarity) but that didn't fix the problem. I tried to use a battery clip adapter, that didn't fix the problem. Does this mean it is down to the input jack? The input jack was giving me a few (rare) problems before my new setup..

Many thanks
Dan