I just purchased an RB 67 Pro S 120 Power Drive Back and am trying to find info on how to use it and what all of the buttons and switches are used for. I tried the search function, but didn't get any hits. Also, tried searching for an instruction manual but came up empty once again.
One thing I noticed while reading this is that it only mentions the typical-of-the-time alkaline manganese an Ni-Cd batteries. Does anyone know if Nickle Metal Hydride batteries will hurt anything? I blew up a couple of Metz 45 CL-4's with them back in the day...