"Jonathan...Special thank you to your technician for fixing my pulse coder on spindle motor on Dept. 76 lathe. He was able to repair it without taking the motor out..got it running just in time as they ran out of parts this morning."
This is for a 4,000HP, 2-pole (3600rpm) rotor. Ron, with the assistance of Steve and John, is heating it up to 1,300 degrees (shown here) to melt the solder so they can slip on the new copper rings, which were manufactured by York.