01-23-2018, 10:11 AM
Nice amp! I have one just like it, although mine is a '61 and has the blue sparkle covering. The R-12-R is not super complicated, and I'm unaware of any issues special to this model. Once the electrolytics are refreshed, it shouldn't take much effort to identify any remaining issues.
One thing you should probably be aware of is that the power filter circuit uses 6 20uf capacitors. You're never going to find a replacement can with more than 4 20uf sections (don't really know how Ampeg wired these originally), so there will be a couple extra 20uf caps sort of shoved off to the side once the recap is done. Different techs seems to find different ways of attaching them to something solid. But anyway, this is normal.
One thing you should probably be aware of is that the power filter circuit uses 6 20uf capacitors. You're never going to find a replacement can with more than 4 20uf sections (don't really know how Ampeg wired these originally), so there will be a couple extra 20uf caps sort of shoved off to the side once the recap is done. Different techs seems to find different ways of attaching them to something solid. But anyway, this is normal.