I just bought a '70's/80's Electro Harmonix Electric Mistress Flanger. This is the one with the green lettering and knobs at the top. It is battery powered, but has a (non-barrel type) AC jack on the back, unfortunately with no information. I power my peadals with a Voodoo Lab PP2. Anyone know whether I can power the Mistress with the PP2, by using the min-jack type connector that came with it, and if so, what setting should the dip switch be on? Looked all over the net and can't seem to find an answer to this. Thanks for your help.