If your looking for a 6V DC REGULATED wall supply / cube supply, then go to Horizon Hobby and check out the EFLC1005 6V 1.5 amp AC/DC Power Supply. It powers my Celestron Omni CG4 GEM mount that I added the 2 Celestron motor drives too. Here is the link to the 6V DC supply.

http://search.horizonhobby.com/index.jsp?N=0&Ntt=eflc1005&sid=122002E14063

Clear Skies, Donnie