The Rev C is an anomaly as far as transformers go, as it launched using the Mesa Mark IV/2 Channel Rectifier (Rev F/Rev G) 561140 power transformer! Here are the transformers as used on Rev C:
I had not seen that thread before so thanks for posting. I learn something new on these Rectifiers every day I swear. And my brain couldn't wrap around the bolded part there about the Rev C (triple) being launched using the Rev G (dual) transformer. Fuck. I had to go to that source link to understand what was going on. Thanks,