Look Ma, No Hands!
Both of these are in very clean condition. Untested, but rear brake lock up tight when I pull back on the arm, also spins smoothly. I think the DynoHub would work because when I spin it by hand I can feel resistance from the magnets and a slight vibration. Rear brake is dated 7 79 and the front hub is dated 12 78 Sold as a pair and will not separate.