@VHubbard posted:27 ohm unit and wicking material in my case. See my 783 tuneup.
Great info! I think I read on here that they changed the armature with the 785.? I ended up doing a motor swap from my 2006ish 773 and I put it in the 783. I also put some Red N Tacky in the gearbox. It's so much quieter now. I'm anxious to get another resistor so I can button it up. I'm going to remove the SOS and put a Polar Express type air whistle in it. At least I think I am...jury might still be out.