Have a damaged voltage reg on 64-1/2 (generator model). The resistors on back of voltage reg are shot/broken down. New one ordered from US but 3 weeks away. Does anyone have tech info on the resistors on back of voltage reg? What are the ratings? Noticed one stamped with 40 and other with 55. Are these ohms values? Wondering if can re-build old one while waiting for new one to arrive? Any info appreciated.