a rectifier assembly includes first and second housings surrounding a pair of electrical rings . each of the electrical rings communicates with a pin . bolts secure a spring to hold diodes against an inner wall of the electrical rings . the first housing includes openings opposed to the bolts to allow access to the bolts for tightening the bolts to hold the spring , and bias the diodes against the inner periphery of the electrical rings . a rotor balance assembly , a generator , and a method of assembling a rectifier assembly are also disclosed and claimed .