Hi all.  Last week I posted about a couple 291's I picked up with complete old efka variostop motor/control. They have 3 phase and i was curious in how to convert them to single. The all knowing @Uwe found a page in the 291 instruction manual that seems to hint at the possibility of an internal switching of somethings to convert it to single phase. I contacted Efka and they said it is indeed possible  and sent a diagram of their own, but in German ...Schiesse! - "Attached you fin