Any recommendations on the best way to clean the receiver? As Rob noticed from the picture, it could use a good cleaning, but I'm not sure what would be safe to use for cleaning. I did see Rob's comment about making sure to keep water away from the transformers, so I will be sure to do that.
I did order a kit for the TSU, which includes 2 resistors (R506 and R511). But, I'll be sure to check them all while I am in there.