This is the question part. I have placed a standard 9 volt battery in line with a 400k pot to trim what the motor sees. The combination will just barely put out the required 1/10 rpm before the motor wishes to quit. I successfully watched M13 for 40 min. last night with no counterweight, for my 4 1/4", and no sign of the battery being exhausted.
Question: Will this battery combination last? (Say for 6 hours). I did find that when I pushed the scope against the RA clutch the motor could not handle the extra stress so it stopped. I had to restart it at a faster speed to restart it again. You should hear this puppy. It sounds like it barely moves at all.
This is probably a temporary measure anyway, but I have never owned a mount that tracks. What a treat.